/*
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* Copyright 2009-2016 The Android Open Source Project
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* Copyright 2015 Samsung LSI
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.bluetooth;
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import android.Manifest;
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import android.annotation.IntDef;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.annotation.RequiresPermission;
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import android.annotation.SdkConstant;
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import android.annotation.SdkConstant.SdkConstantType;
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import android.annotation.SystemApi;
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import android.annotation.UnsupportedAppUsage;
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import android.app.ActivityThread;
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import android.bluetooth.le.BluetoothLeAdvertiser;
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import android.bluetooth.le.BluetoothLeScanner;
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import android.bluetooth.le.PeriodicAdvertisingManager;
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import android.bluetooth.le.ScanCallback;
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import android.bluetooth.le.ScanFilter;
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import android.bluetooth.le.ScanRecord;
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import android.bluetooth.le.ScanResult;
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import android.bluetooth.le.ScanSettings;
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import android.content.Context;
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import android.os.BatteryStats;
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import android.os.Binder;
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import android.os.IBinder;
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import android.os.ParcelUuid;
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import android.os.RemoteException;
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import android.os.ResultReceiver;
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import android.os.ServiceManager;
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import android.os.SynchronousResultReceiver;
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import android.os.SystemProperties;
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import android.util.Log;
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import android.util.Pair;
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import java.io.IOException;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.Set;
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import java.util.UUID;
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import java.util.concurrent.Executor;
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import java.util.concurrent.TimeoutException;
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import java.util.concurrent.locks.ReentrantReadWriteLock;
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/**
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* Represents the local device Bluetooth adapter. The {@link BluetoothAdapter}
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* lets you perform fundamental Bluetooth tasks, such as initiate
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* device discovery, query a list of bonded (paired) devices,
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* instantiate a {@link BluetoothDevice} using a known MAC address, and create
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* a {@link BluetoothServerSocket} to listen for connection requests from other
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* devices, and start a scan for Bluetooth LE devices.
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*
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* <p>To get a {@link BluetoothAdapter} representing the local Bluetooth
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* adapter, call the {@link BluetoothManager#getAdapter} function on {@link BluetoothManager}.
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* On JELLY_BEAN_MR1 and below you will need to use the static {@link #getDefaultAdapter}
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* method instead.
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* </p><p>
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* Fundamentally, this is your starting point for all
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* Bluetooth actions. Once you have the local adapter, you can get a set of
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* {@link BluetoothDevice} objects representing all paired devices with
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* {@link #getBondedDevices()}; start device discovery with
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* {@link #startDiscovery()}; or create a {@link BluetoothServerSocket} to
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* listen for incoming RFComm connection requests with {@link
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* #listenUsingRfcommWithServiceRecord(String, UUID)}; listen for incoming L2CAP Connection-oriented
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* Channels (CoC) connection requests with {@link #listenUsingL2capChannel()}; or start a scan for
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* Bluetooth LE devices with {@link #startLeScan(LeScanCallback callback)}.
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* </p>
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* <p>This class is thread safe.</p>
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* <p class="note"><strong>Note:</strong>
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* Most methods require the {@link android.Manifest.permission#BLUETOOTH}
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* permission and some also require the
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* {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission.
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* </p>
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* <div class="special reference">
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* <h3>Developer Guides</h3>
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* <p>
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* For more information about using Bluetooth, read the <a href=
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* "{@docRoot}guide/topics/connectivity/bluetooth.html">Bluetooth</a> developer
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* guide.
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* </p>
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* </div>
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*
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* {@see BluetoothDevice}
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* {@see BluetoothServerSocket}
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*/
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public final class BluetoothAdapter {
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private static final String TAG = "BluetoothAdapter";
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private static final boolean DBG = true;
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private static final boolean VDBG = false;
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/**
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* Default MAC address reported to a client that does not have the
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* android.permission.LOCAL_MAC_ADDRESS permission.
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*
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* @hide
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*/
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public static final String DEFAULT_MAC_ADDRESS = "02:00:00:00:00:00";
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/**
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* Sentinel error value for this class. Guaranteed to not equal any other
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* integer constant in this class. Provided as a convenience for functions
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* that require a sentinel error value, for example:
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* <p><code>Intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
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* BluetoothAdapter.ERROR)</code>
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*/
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public static final int ERROR = Integer.MIN_VALUE;
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/**
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* Broadcast Action: The state of the local Bluetooth adapter has been
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* changed.
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* <p>For example, Bluetooth has been turned on or off.
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* <p>Always contains the extra fields {@link #EXTRA_STATE} and {@link
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* #EXTRA_PREVIOUS_STATE} containing the new and old states
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* respectively.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
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ACTION_STATE_CHANGED = "android.bluetooth.adapter.action.STATE_CHANGED";
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/**
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* Used as an int extra field in {@link #ACTION_STATE_CHANGED}
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* intents to request the current power state. Possible values are:
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* {@link #STATE_OFF},
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* {@link #STATE_TURNING_ON},
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* {@link #STATE_ON},
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* {@link #STATE_TURNING_OFF},
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*/
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public static final String EXTRA_STATE = "android.bluetooth.adapter.extra.STATE";
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/**
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* Used as an int extra field in {@link #ACTION_STATE_CHANGED}
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* intents to request the previous power state. Possible values are:
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* {@link #STATE_OFF},
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* {@link #STATE_TURNING_ON},
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* {@link #STATE_ON},
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* {@link #STATE_TURNING_OFF}
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*/
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public static final String EXTRA_PREVIOUS_STATE =
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"android.bluetooth.adapter.extra.PREVIOUS_STATE";
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/** @hide */
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@IntDef(prefix = { "STATE_" }, value = {
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STATE_OFF,
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STATE_TURNING_ON,
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STATE_ON,
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STATE_TURNING_OFF,
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STATE_BLE_TURNING_ON,
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STATE_BLE_ON,
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STATE_BLE_TURNING_OFF
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})
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@Retention(RetentionPolicy.SOURCE)
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public @interface AdapterState {}
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/**
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* Indicates the local Bluetooth adapter is off.
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*/
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public static final int STATE_OFF = 10;
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/**
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* Indicates the local Bluetooth adapter is turning on. However local
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* clients should wait for {@link #STATE_ON} before attempting to
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* use the adapter.
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*/
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public static final int STATE_TURNING_ON = 11;
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/**
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* Indicates the local Bluetooth adapter is on, and ready for use.
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*/
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public static final int STATE_ON = 12;
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/**
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* Indicates the local Bluetooth adapter is turning off. Local clients
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* should immediately attempt graceful disconnection of any remote links.
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*/
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public static final int STATE_TURNING_OFF = 13;
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/**
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* Indicates the local Bluetooth adapter is turning Bluetooth LE mode on.
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*
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* @hide
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*/
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public static final int STATE_BLE_TURNING_ON = 14;
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/**
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* Indicates the local Bluetooth adapter is in LE only mode.
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*
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* @hide
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*/
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public static final int STATE_BLE_ON = 15;
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/**
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* Indicates the local Bluetooth adapter is turning off LE only mode.
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*
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* @hide
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*/
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public static final int STATE_BLE_TURNING_OFF = 16;
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/**
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* UUID of the GATT Read Characteristics for LE_PSM value.
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*
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* @hide
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*/
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public static final UUID LE_PSM_CHARACTERISTIC_UUID =
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UUID.fromString("2d410339-82b6-42aa-b34e-e2e01df8cc1a");
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/**
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* Human-readable string helper for AdapterState
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*
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* @hide
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*/
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public static String nameForState(@AdapterState int state) {
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switch (state) {
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case STATE_OFF:
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return "OFF";
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case STATE_TURNING_ON:
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return "TURNING_ON";
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case STATE_ON:
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return "ON";
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case STATE_TURNING_OFF:
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return "TURNING_OFF";
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case STATE_BLE_TURNING_ON:
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return "BLE_TURNING_ON";
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case STATE_BLE_ON:
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return "BLE_ON";
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case STATE_BLE_TURNING_OFF:
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return "BLE_TURNING_OFF";
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default:
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return "?!?!? (" + state + ")";
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}
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}
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/**
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* Activity Action: Show a system activity that requests discoverable mode.
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* This activity will also request the user to turn on Bluetooth if it
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* is not currently enabled.
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* <p>Discoverable mode is equivalent to {@link
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* #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. It allows remote devices to see
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* this Bluetooth adapter when they perform a discovery.
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* <p>For privacy, Android is not discoverable by default.
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* <p>The sender of this Intent can optionally use extra field {@link
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* #EXTRA_DISCOVERABLE_DURATION} to request the duration of
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* discoverability. Currently the default duration is 120 seconds, and
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* maximum duration is capped at 300 seconds for each request.
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* <p>Notification of the result of this activity is posted using the
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* {@link android.app.Activity#onActivityResult} callback. The
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* <code>resultCode</code>
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* will be the duration (in seconds) of discoverability or
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* {@link android.app.Activity#RESULT_CANCELED} if the user rejected
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* discoverability or an error has occurred.
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* <p>Applications can also listen for {@link #ACTION_SCAN_MODE_CHANGED}
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* for global notification whenever the scan mode changes. For example, an
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* application can be notified when the device has ended discoverability.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
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*/
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@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String
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ACTION_REQUEST_DISCOVERABLE = "android.bluetooth.adapter.action.REQUEST_DISCOVERABLE";
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/**
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* Used as an optional int extra field in {@link
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* #ACTION_REQUEST_DISCOVERABLE} intents to request a specific duration
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* for discoverability in seconds. The current default is 120 seconds, and
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* requests over 300 seconds will be capped. These values could change.
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*/
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public static final String EXTRA_DISCOVERABLE_DURATION =
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"android.bluetooth.adapter.extra.DISCOVERABLE_DURATION";
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/**
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* Activity Action: Show a system activity that allows the user to turn on
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* Bluetooth.
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* <p>This system activity will return once Bluetooth has completed turning
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* on, or the user has decided not to turn Bluetooth on.
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* <p>Notification of the result of this activity is posted using the
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* {@link android.app.Activity#onActivityResult} callback. The
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* <code>resultCode</code>
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* will be {@link android.app.Activity#RESULT_OK} if Bluetooth has been
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* turned on or {@link android.app.Activity#RESULT_CANCELED} if the user
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* has rejected the request or an error has occurred.
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* <p>Applications can also listen for {@link #ACTION_STATE_CHANGED}
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* for global notification whenever Bluetooth is turned on or off.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
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*/
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@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String
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ACTION_REQUEST_ENABLE = "android.bluetooth.adapter.action.REQUEST_ENABLE";
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/**
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* Activity Action: Show a system activity that allows the user to turn off
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* Bluetooth. This is used only if permission review is enabled which is for
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* apps targeting API less than 23 require a permission review before any of
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* the app's components can run.
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* <p>This system activity will return once Bluetooth has completed turning
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* off, or the user has decided not to turn Bluetooth off.
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* <p>Notification of the result of this activity is posted using the
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* {@link android.app.Activity#onActivityResult} callback. The
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* <code>resultCode</code>
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* will be {@link android.app.Activity#RESULT_OK} if Bluetooth has been
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* turned off or {@link android.app.Activity#RESULT_CANCELED} if the user
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* has rejected the request or an error has occurred.
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* <p>Applications can also listen for {@link #ACTION_STATE_CHANGED}
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* for global notification whenever Bluetooth is turned on or off.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
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*
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* @hide
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*/
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@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String
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ACTION_REQUEST_DISABLE = "android.bluetooth.adapter.action.REQUEST_DISABLE";
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/**
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* Activity Action: Show a system activity that allows user to enable BLE scans even when
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* Bluetooth is turned off.<p>
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*
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* Notification of result of this activity is posted using
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* {@link android.app.Activity#onActivityResult}. The <code>resultCode</code> will be
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* {@link android.app.Activity#RESULT_OK} if BLE scan always available setting is turned on or
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* {@link android.app.Activity#RESULT_CANCELED} if the user has rejected the request or an
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* error occurred.
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*
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* @hide
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*/
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@SystemApi
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@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
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public static final String ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE =
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"android.bluetooth.adapter.action.REQUEST_BLE_SCAN_ALWAYS_AVAILABLE";
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/**
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* Broadcast Action: Indicates the Bluetooth scan mode of the local Adapter
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* has changed.
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* <p>Always contains the extra fields {@link #EXTRA_SCAN_MODE} and {@link
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* #EXTRA_PREVIOUS_SCAN_MODE} containing the new and old scan modes
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* respectively.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
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ACTION_SCAN_MODE_CHANGED = "android.bluetooth.adapter.action.SCAN_MODE_CHANGED";
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/**
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* Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED}
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* intents to request the current scan mode. Possible values are:
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* {@link #SCAN_MODE_NONE},
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* {@link #SCAN_MODE_CONNECTABLE},
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* {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE},
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*/
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public static final String EXTRA_SCAN_MODE = "android.bluetooth.adapter.extra.SCAN_MODE";
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/**
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* Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED}
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* intents to request the previous scan mode. Possible values are:
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* {@link #SCAN_MODE_NONE},
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* {@link #SCAN_MODE_CONNECTABLE},
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* {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE},
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*/
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public static final String EXTRA_PREVIOUS_SCAN_MODE =
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"android.bluetooth.adapter.extra.PREVIOUS_SCAN_MODE";
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/** @hide */
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@IntDef(prefix = { "SCAN_" }, value = {
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SCAN_MODE_NONE,
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SCAN_MODE_CONNECTABLE,
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SCAN_MODE_CONNECTABLE_DISCOVERABLE
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})
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@Retention(RetentionPolicy.SOURCE)
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public @interface ScanMode {}
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/**
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* Indicates that both inquiry scan and page scan are disabled on the local
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* Bluetooth adapter. Therefore this device is neither discoverable
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* nor connectable from remote Bluetooth devices.
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*/
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public static final int SCAN_MODE_NONE = 20;
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/**
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* Indicates that inquiry scan is disabled, but page scan is enabled on the
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* local Bluetooth adapter. Therefore this device is not discoverable from
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* remote Bluetooth devices, but is connectable from remote devices that
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* have previously discovered this device.
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*/
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public static final int SCAN_MODE_CONNECTABLE = 21;
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/**
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* Indicates that both inquiry scan and page scan are enabled on the local
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* Bluetooth adapter. Therefore this device is both discoverable and
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* connectable from remote Bluetooth devices.
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*/
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public static final int SCAN_MODE_CONNECTABLE_DISCOVERABLE = 23;
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/**
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* Device only has a display.
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*
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* @hide
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*/
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public static final int IO_CAPABILITY_OUT = 0;
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/**
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* Device has a display and the ability to input Yes/No.
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*
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* @hide
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*/
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public static final int IO_CAPABILITY_IO = 1;
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/**
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* Device only has a keyboard for entry but no display.
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*
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* @hide
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*/
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public static final int IO_CAPABILITY_IN = 2;
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/**
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* Device has no Input or Output capability.
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*
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* @hide
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*/
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public static final int IO_CAPABILITY_NONE = 3;
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/**
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* Device has a display and a full keyboard.
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*
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* @hide
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*/
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public static final int IO_CAPABILITY_KBDISP = 4;
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/**
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* Maximum range value for Input/Output capabilities.
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*
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* <p>This should be updated when adding a new Input/Output capability. Other code
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* like validation depends on this being accurate.
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*
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* @hide
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*/
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public static final int IO_CAPABILITY_MAX = 5;
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/**
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* The Input/Output capability of the device is unknown.
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*
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* @hide
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*/
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public static final int IO_CAPABILITY_UNKNOWN = 255;
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/** @hide */
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@IntDef({IO_CAPABILITY_OUT, IO_CAPABILITY_IO, IO_CAPABILITY_IN, IO_CAPABILITY_NONE,
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IO_CAPABILITY_KBDISP})
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@Retention(RetentionPolicy.SOURCE)
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public @interface IoCapability {}
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/**
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* Broadcast Action: The local Bluetooth adapter has started the remote
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* device discovery process.
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* <p>This usually involves an inquiry scan of about 12 seconds, followed
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* by a page scan of each new device to retrieve its Bluetooth name.
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* <p>Register for {@link BluetoothDevice#ACTION_FOUND} to be notified as
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* remote Bluetooth devices are found.
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* <p>Device discovery is a heavyweight procedure. New connections to
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* remote Bluetooth devices should not be attempted while discovery is in
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* progress, and existing connections will experience limited bandwidth
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* and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing
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* discovery.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
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ACTION_DISCOVERY_STARTED = "android.bluetooth.adapter.action.DISCOVERY_STARTED";
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/**
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* Broadcast Action: The local Bluetooth adapter has finished the device
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* discovery process.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
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ACTION_DISCOVERY_FINISHED = "android.bluetooth.adapter.action.DISCOVERY_FINISHED";
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/**
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* Broadcast Action: The local Bluetooth adapter has changed its friendly
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* Bluetooth name.
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* <p>This name is visible to remote Bluetooth devices.
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* <p>Always contains the extra field {@link #EXTRA_LOCAL_NAME} containing
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* the name.
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
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ACTION_LOCAL_NAME_CHANGED = "android.bluetooth.adapter.action.LOCAL_NAME_CHANGED";
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/**
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* Used as a String extra field in {@link #ACTION_LOCAL_NAME_CHANGED}
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* intents to request the local Bluetooth name.
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*/
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public static final String EXTRA_LOCAL_NAME = "android.bluetooth.adapter.extra.LOCAL_NAME";
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/**
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* Intent used to broadcast the change in connection state of the local
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* Bluetooth adapter to a profile of the remote device. When the adapter is
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* not connected to any profiles of any remote devices and it attempts a
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* connection to a profile this intent will be sent. Once connected, this intent
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* will not be sent for any more connection attempts to any profiles of any
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* remote device. When the adapter disconnects from the last profile its
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* connected to of any remote device, this intent will be sent.
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*
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* <p> This intent is useful for applications that are only concerned about
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* whether the local adapter is connected to any profile of any device and
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* are not really concerned about which profile. For example, an application
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* which displays an icon to display whether Bluetooth is connected or not
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* can use this intent.
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*
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* <p>This intent will have 3 extras:
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* {@link #EXTRA_CONNECTION_STATE} - The current connection state.
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* {@link #EXTRA_PREVIOUS_CONNECTION_STATE}- The previous connection state.
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* {@link BluetoothDevice#EXTRA_DEVICE} - The remote device.
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*
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* {@link #EXTRA_CONNECTION_STATE} or {@link #EXTRA_PREVIOUS_CONNECTION_STATE}
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* can be any of {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING},
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* {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}.
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*
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String
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ACTION_CONNECTION_STATE_CHANGED =
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"android.bluetooth.adapter.action.CONNECTION_STATE_CHANGED";
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/**
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* Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED}
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*
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* This extra represents the current connection state.
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*/
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public static final String EXTRA_CONNECTION_STATE =
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"android.bluetooth.adapter.extra.CONNECTION_STATE";
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/**
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* Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED}
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*
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* This extra represents the previous connection state.
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*/
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public static final String EXTRA_PREVIOUS_CONNECTION_STATE =
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"android.bluetooth.adapter.extra.PREVIOUS_CONNECTION_STATE";
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/**
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* Broadcast Action: The Bluetooth adapter state has changed in LE only mode.
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*
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* @hide
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*/
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@SystemApi public static final String ACTION_BLE_STATE_CHANGED =
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"android.bluetooth.adapter.action.BLE_STATE_CHANGED";
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/**
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* Intent used to broadcast the change in the Bluetooth address
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* of the local Bluetooth adapter.
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* <p>Always contains the extra field {@link
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* #EXTRA_BLUETOOTH_ADDRESS} containing the Bluetooth address.
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*
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* Note: only system level processes are allowed to send this
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* defined broadcast.
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*
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* @hide
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*/
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public static final String ACTION_BLUETOOTH_ADDRESS_CHANGED =
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"android.bluetooth.adapter.action.BLUETOOTH_ADDRESS_CHANGED";
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/**
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* Used as a String extra field in {@link
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* #ACTION_BLUETOOTH_ADDRESS_CHANGED} intent to store the local
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* Bluetooth address.
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*
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* @hide
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*/
|
public static final String EXTRA_BLUETOOTH_ADDRESS =
|
"android.bluetooth.adapter.extra.BLUETOOTH_ADDRESS";
|
|
/**
|
* Broadcast Action: The notifys Bluetooth ACL connected event. This will be
|
* by BLE Always on enabled application to know the ACL_CONNECTED event
|
* when Bluetooth state in STATE_BLE_ON. This denotes GATT connection
|
* as Bluetooth LE is the only feature available in STATE_BLE_ON
|
*
|
* This is counterpart of {@link BluetoothDevice#ACTION_ACL_CONNECTED} which
|
* works in Bluetooth state STATE_ON
|
*
|
* @hide
|
*/
|
public static final String ACTION_BLE_ACL_CONNECTED =
|
"android.bluetooth.adapter.action.BLE_ACL_CONNECTED";
|
|
/**
|
* Broadcast Action: The notifys Bluetooth ACL connected event. This will be
|
* by BLE Always on enabled application to know the ACL_DISCONNECTED event
|
* when Bluetooth state in STATE_BLE_ON. This denotes GATT disconnection as Bluetooth
|
* LE is the only feature available in STATE_BLE_ON
|
*
|
* This is counterpart of {@link BluetoothDevice#ACTION_ACL_DISCONNECTED} which
|
* works in Bluetooth state STATE_ON
|
*
|
* @hide
|
*/
|
public static final String ACTION_BLE_ACL_DISCONNECTED =
|
"android.bluetooth.adapter.action.BLE_ACL_DISCONNECTED";
|
|
/** The profile is in disconnected state */
|
public static final int STATE_DISCONNECTED = BluetoothProtoEnums.CONNECTION_STATE_DISCONNECTED;
|
/** The profile is in connecting state */
|
public static final int STATE_CONNECTING = BluetoothProtoEnums.CONNECTION_STATE_CONNECTING;
|
/** The profile is in connected state */
|
public static final int STATE_CONNECTED = BluetoothProtoEnums.CONNECTION_STATE_CONNECTED;
|
/** The profile is in disconnecting state */
|
public static final int STATE_DISCONNECTING =
|
BluetoothProtoEnums.CONNECTION_STATE_DISCONNECTING;
|
|
/** @hide */
|
public static final String BLUETOOTH_MANAGER_SERVICE = "bluetooth_manager";
|
private final IBinder mToken;
|
|
|
/**
|
* When creating a ServerSocket using listenUsingRfcommOn() or
|
* listenUsingL2capOn() use SOCKET_CHANNEL_AUTO_STATIC to create
|
* a ServerSocket that auto assigns a channel number to the first
|
* bluetooth socket.
|
* The channel number assigned to this first Bluetooth Socket will
|
* be stored in the ServerSocket, and reused for subsequent Bluetooth
|
* sockets.
|
*
|
* @hide
|
*/
|
public static final int SOCKET_CHANNEL_AUTO_STATIC_NO_SDP = -2;
|
|
|
private static final int ADDRESS_LENGTH = 17;
|
|
/**
|
* Lazily initialized singleton. Guaranteed final after first object
|
* constructed.
|
*/
|
private static BluetoothAdapter sAdapter;
|
|
private static BluetoothLeScanner sBluetoothLeScanner;
|
private static BluetoothLeAdvertiser sBluetoothLeAdvertiser;
|
private static PeriodicAdvertisingManager sPeriodicAdvertisingManager;
|
|
private final IBluetoothManager mManagerService;
|
@UnsupportedAppUsage
|
private IBluetooth mService;
|
private Context mContext;
|
private final ReentrantReadWriteLock mServiceLock = new ReentrantReadWriteLock();
|
|
private final Object mLock = new Object();
|
private final Map<LeScanCallback, ScanCallback> mLeScanClients;
|
private static final Map<BluetoothDevice, List<Pair<OnMetadataChangedListener, Executor>>>
|
sMetadataListeners = new HashMap<>();
|
|
/**
|
* Bluetooth metadata listener. Overrides the default BluetoothMetadataListener
|
* implementation.
|
*/
|
private static final IBluetoothMetadataListener sBluetoothMetadataListener =
|
new IBluetoothMetadataListener.Stub() {
|
@Override
|
public void onMetadataChanged(BluetoothDevice device, int key, byte[] value) {
|
synchronized (sMetadataListeners) {
|
if (sMetadataListeners.containsKey(device)) {
|
List<Pair<OnMetadataChangedListener, Executor>> list =
|
sMetadataListeners.get(device);
|
for (Pair<OnMetadataChangedListener, Executor> pair : list) {
|
OnMetadataChangedListener listener = pair.first;
|
Executor executor = pair.second;
|
executor.execute(() -> {
|
listener.onMetadataChanged(device, key, value);
|
});
|
}
|
}
|
}
|
return;
|
}
|
};
|
|
/**
|
* Get a handle to the default local Bluetooth adapter.
|
* <p>Currently Android only supports one Bluetooth adapter, but the API
|
* could be extended to support more. This will always return the default
|
* adapter.
|
* </p>
|
*
|
* @return the default local adapter, or null if Bluetooth is not supported on this hardware
|
* platform
|
*/
|
public static synchronized BluetoothAdapter getDefaultAdapter() {
|
if (sAdapter == null) {
|
IBinder b = ServiceManager.getService(BLUETOOTH_MANAGER_SERVICE);
|
if (b != null) {
|
IBluetoothManager managerService = IBluetoothManager.Stub.asInterface(b);
|
sAdapter = new BluetoothAdapter(managerService);
|
} else {
|
Log.e(TAG, "Bluetooth binder is null");
|
}
|
}
|
return sAdapter;
|
}
|
|
/**
|
* Use {@link #getDefaultAdapter} to get the BluetoothAdapter instance.
|
*/
|
BluetoothAdapter(IBluetoothManager managerService) {
|
|
if (managerService == null) {
|
throw new IllegalArgumentException("bluetooth manager service is null");
|
}
|
try {
|
mServiceLock.writeLock().lock();
|
mService = managerService.registerAdapter(mManagerCallback);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.writeLock().unlock();
|
}
|
mManagerService = managerService;
|
mLeScanClients = new HashMap<LeScanCallback, ScanCallback>();
|
mToken = new Binder();
|
}
|
|
/**
|
* Get a {@link BluetoothDevice} object for the given Bluetooth hardware
|
* address.
|
* <p>Valid Bluetooth hardware addresses must be upper case, in a format
|
* such as "00:11:22:33:AA:BB". The helper {@link #checkBluetoothAddress} is
|
* available to validate a Bluetooth address.
|
* <p>A {@link BluetoothDevice} will always be returned for a valid
|
* hardware address, even if this adapter has never seen that device.
|
*
|
* @param address valid Bluetooth MAC address
|
* @throws IllegalArgumentException if address is invalid
|
*/
|
public BluetoothDevice getRemoteDevice(String address) {
|
return new BluetoothDevice(address);
|
}
|
|
/**
|
* Get a {@link BluetoothDevice} object for the given Bluetooth hardware
|
* address.
|
* <p>Valid Bluetooth hardware addresses must be 6 bytes. This method
|
* expects the address in network byte order (MSB first).
|
* <p>A {@link BluetoothDevice} will always be returned for a valid
|
* hardware address, even if this adapter has never seen that device.
|
*
|
* @param address Bluetooth MAC address (6 bytes)
|
* @throws IllegalArgumentException if address is invalid
|
*/
|
public BluetoothDevice getRemoteDevice(byte[] address) {
|
if (address == null || address.length != 6) {
|
throw new IllegalArgumentException("Bluetooth address must have 6 bytes");
|
}
|
return new BluetoothDevice(
|
String.format(Locale.US, "%02X:%02X:%02X:%02X:%02X:%02X", address[0], address[1],
|
address[2], address[3], address[4], address[5]));
|
}
|
|
/**
|
* Returns a {@link BluetoothLeAdvertiser} object for Bluetooth LE Advertising operations.
|
* Will return null if Bluetooth is turned off or if Bluetooth LE Advertising is not
|
* supported on this device.
|
* <p>
|
* Use {@link #isMultipleAdvertisementSupported()} to check whether LE Advertising is supported
|
* on this device before calling this method.
|
*/
|
public BluetoothLeAdvertiser getBluetoothLeAdvertiser() {
|
if (!getLeAccess()) {
|
return null;
|
}
|
synchronized (mLock) {
|
if (sBluetoothLeAdvertiser == null) {
|
sBluetoothLeAdvertiser = new BluetoothLeAdvertiser(mManagerService);
|
}
|
}
|
return sBluetoothLeAdvertiser;
|
}
|
|
/**
|
* Returns a {@link PeriodicAdvertisingManager} object for Bluetooth LE Periodic Advertising
|
* operations. Will return null if Bluetooth is turned off or if Bluetooth LE Periodic
|
* Advertising is not supported on this device.
|
* <p>
|
* Use {@link #isLePeriodicAdvertisingSupported()} to check whether LE Periodic Advertising is
|
* supported on this device before calling this method.
|
*
|
* @hide
|
*/
|
public PeriodicAdvertisingManager getPeriodicAdvertisingManager() {
|
if (!getLeAccess()) {
|
return null;
|
}
|
|
if (!isLePeriodicAdvertisingSupported()) {
|
return null;
|
}
|
|
synchronized (mLock) {
|
if (sPeriodicAdvertisingManager == null) {
|
sPeriodicAdvertisingManager = new PeriodicAdvertisingManager(mManagerService);
|
}
|
}
|
return sPeriodicAdvertisingManager;
|
}
|
|
/**
|
* Returns a {@link BluetoothLeScanner} object for Bluetooth LE scan operations.
|
*/
|
public BluetoothLeScanner getBluetoothLeScanner() {
|
if (!getLeAccess()) {
|
return null;
|
}
|
synchronized (mLock) {
|
if (sBluetoothLeScanner == null) {
|
sBluetoothLeScanner = new BluetoothLeScanner(mManagerService);
|
}
|
}
|
return sBluetoothLeScanner;
|
}
|
|
/**
|
* Return true if Bluetooth is currently enabled and ready for use.
|
* <p>Equivalent to:
|
* <code>getBluetoothState() == STATE_ON</code>
|
*
|
* @return true if the local adapter is turned on
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public boolean isEnabled() {
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isEnabled();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
|
return false;
|
}
|
|
/**
|
* Return true if Bluetooth LE(Always BLE On feature) is currently
|
* enabled and ready for use
|
* <p>This returns true if current state is either STATE_ON or STATE_BLE_ON
|
*
|
* @return true if the local Bluetooth LE adapter is turned on
|
* @hide
|
*/
|
@SystemApi
|
public boolean isLeEnabled() {
|
final int state = getLeState();
|
if (DBG) {
|
Log.d(TAG, "isLeEnabled(): " + BluetoothAdapter.nameForState(state));
|
}
|
return (state == BluetoothAdapter.STATE_ON || state == BluetoothAdapter.STATE_BLE_ON);
|
}
|
|
/**
|
* Turns off Bluetooth LE which was earlier turned on by calling enableBLE().
|
*
|
* <p> If the internal Adapter state is STATE_BLE_ON, this would trigger the transition
|
* to STATE_OFF and completely shut-down Bluetooth
|
*
|
* <p> If the Adapter state is STATE_ON, This would unregister the existance of
|
* special Bluetooth LE application and hence the further turning off of Bluetooth
|
* from UI would ensure the complete turn-off of Bluetooth rather than staying back
|
* BLE only state
|
*
|
* <p>This is an asynchronous call: it will return immediately, and
|
* clients should listen for {@link #ACTION_BLE_STATE_CHANGED}
|
* to be notified of subsequent adapter state changes If this call returns
|
* true, then the adapter state will immediately transition from {@link
|
* #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time
|
* later transition to either {@link #STATE_BLE_ON} or {@link
|
* #STATE_OFF} based on the existance of the further Always BLE ON enabled applications
|
* If this call returns false then there was an
|
* immediate problem that will prevent the QAdapter from being turned off -
|
* such as the QAadapter already being turned off.
|
*
|
* @return true to indicate success, or false on immediate error
|
* @hide
|
*/
|
@SystemApi
|
public boolean disableBLE() {
|
if (!isBleScanAlwaysAvailable()) {
|
return false;
|
}
|
|
int state = getLeState();
|
if (state == BluetoothAdapter.STATE_ON || state == BluetoothAdapter.STATE_BLE_ON) {
|
String packageName = ActivityThread.currentPackageName();
|
if (DBG) {
|
Log.d(TAG, "disableBLE(): de-registering " + packageName);
|
}
|
try {
|
mManagerService.updateBleAppCount(mToken, false, packageName);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return true;
|
}
|
|
if (DBG) {
|
Log.d(TAG, "disableBLE(): Already disabled");
|
}
|
return false;
|
}
|
|
/**
|
* Applications who want to only use Bluetooth Low Energy (BLE) can call enableBLE.
|
*
|
* enableBLE registers the existence of an app using only LE functions.
|
*
|
* enableBLE may enable Bluetooth to an LE only mode so that an app can use
|
* LE related features (BluetoothGatt or BluetoothGattServer classes)
|
*
|
* If the user disables Bluetooth while an app is registered to use LE only features,
|
* Bluetooth will remain on in LE only mode for the app.
|
*
|
* When Bluetooth is in LE only mode, it is not shown as ON to the UI.
|
*
|
* <p>This is an asynchronous call: it returns immediately, and
|
* clients should listen for {@link #ACTION_BLE_STATE_CHANGED}
|
* to be notified of adapter state changes.
|
*
|
* If this call returns * true, then the adapter state is either in a mode where
|
* LE is available, or will transition from {@link #STATE_OFF} to {@link #STATE_BLE_TURNING_ON},
|
* and some time later transition to either {@link #STATE_OFF} or {@link #STATE_BLE_ON}.
|
*
|
* If this call returns false then there was an immediate problem that prevents the
|
* adapter from being turned on - such as Airplane mode.
|
*
|
* {@link #ACTION_BLE_STATE_CHANGED} returns the Bluetooth Adapter's various
|
* states, It includes all the classic Bluetooth Adapter states along with
|
* internal BLE only states
|
*
|
* @return true to indicate Bluetooth LE will be available, or false on immediate error
|
* @hide
|
*/
|
@SystemApi
|
public boolean enableBLE() {
|
if (!isBleScanAlwaysAvailable()) {
|
return false;
|
}
|
|
try {
|
String packageName = ActivityThread.currentPackageName();
|
mManagerService.updateBleAppCount(mToken, true, packageName);
|
if (isLeEnabled()) {
|
if (DBG) {
|
Log.d(TAG, "enableBLE(): Bluetooth already enabled");
|
}
|
return true;
|
}
|
if (DBG) {
|
Log.d(TAG, "enableBLE(): Calling enable");
|
}
|
return mManagerService.enable(packageName);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
|
return false;
|
}
|
|
/**
|
* Get the current state of the local Bluetooth adapter.
|
* <p>Possible return values are
|
* {@link #STATE_OFF},
|
* {@link #STATE_TURNING_ON},
|
* {@link #STATE_ON},
|
* {@link #STATE_TURNING_OFF}.
|
*
|
* @return current state of Bluetooth adapter
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
@AdapterState
|
public int getState() {
|
int state = BluetoothAdapter.STATE_OFF;
|
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
state = mService.getState();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
|
// Consider all internal states as OFF
|
if (state == BluetoothAdapter.STATE_BLE_ON || state == BluetoothAdapter.STATE_BLE_TURNING_ON
|
|| state == BluetoothAdapter.STATE_BLE_TURNING_OFF) {
|
if (VDBG) {
|
Log.d(TAG, "Consider " + BluetoothAdapter.nameForState(state) + " state as OFF");
|
}
|
state = BluetoothAdapter.STATE_OFF;
|
}
|
if (VDBG) {
|
Log.d(TAG, "" + hashCode() + ": getState(). Returning " + BluetoothAdapter.nameForState(
|
state));
|
}
|
return state;
|
}
|
|
/**
|
* Get the current state of the local Bluetooth adapter
|
* <p>This returns current internal state of Adapter including LE ON/OFF
|
*
|
* <p>Possible return values are
|
* {@link #STATE_OFF},
|
* {@link #STATE_BLE_TURNING_ON},
|
* {@link #STATE_BLE_ON},
|
* {@link #STATE_TURNING_ON},
|
* {@link #STATE_ON},
|
* {@link #STATE_TURNING_OFF},
|
* {@link #STATE_BLE_TURNING_OFF}.
|
*
|
* @return current state of Bluetooth adapter
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
@AdapterState
|
@UnsupportedAppUsage
|
public int getLeState() {
|
int state = BluetoothAdapter.STATE_OFF;
|
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
state = mService.getState();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
|
if (VDBG) {
|
Log.d(TAG, "getLeState() returning " + BluetoothAdapter.nameForState(state));
|
}
|
return state;
|
}
|
|
boolean getLeAccess() {
|
if (getLeState() == STATE_ON) {
|
return true;
|
} else if (getLeState() == STATE_BLE_ON) {
|
return true; // TODO: FILTER SYSTEM APPS HERE <--
|
}
|
|
return false;
|
}
|
|
/**
|
* Turn on the local Bluetooth adapter—do not use without explicit
|
* user action to turn on Bluetooth.
|
* <p>This powers on the underlying Bluetooth hardware, and starts all
|
* Bluetooth system services.
|
* <p class="caution"><strong>Bluetooth should never be enabled without
|
* direct user consent</strong>. If you want to turn on Bluetooth in order
|
* to create a wireless connection, you should use the {@link
|
* #ACTION_REQUEST_ENABLE} Intent, which will raise a dialog that requests
|
* user permission to turn on Bluetooth. The {@link #enable()} method is
|
* provided only for applications that include a user interface for changing
|
* system settings, such as a "power manager" app.</p>
|
* <p>This is an asynchronous call: it will return immediately, and
|
* clients should listen for {@link #ACTION_STATE_CHANGED}
|
* to be notified of subsequent adapter state changes. If this call returns
|
* true, then the adapter state will immediately transition from {@link
|
* #STATE_OFF} to {@link #STATE_TURNING_ON}, and some time
|
* later transition to either {@link #STATE_OFF} or {@link
|
* #STATE_ON}. If this call returns false then there was an
|
* immediate problem that will prevent the adapter from being turned on -
|
* such as Airplane mode, or the adapter is already turned on.
|
*
|
* @return true to indicate adapter startup has begun, or false on immediate error
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean enable() {
|
if (isEnabled()) {
|
if (DBG) {
|
Log.d(TAG, "enable(): BT already enabled!");
|
}
|
return true;
|
}
|
try {
|
return mManagerService.enable(ActivityThread.currentPackageName());
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return false;
|
}
|
|
/**
|
* Turn off the local Bluetooth adapter—do not use without explicit
|
* user action to turn off Bluetooth.
|
* <p>This gracefully shuts down all Bluetooth connections, stops Bluetooth
|
* system services, and powers down the underlying Bluetooth hardware.
|
* <p class="caution"><strong>Bluetooth should never be disabled without
|
* direct user consent</strong>. The {@link #disable()} method is
|
* provided only for applications that include a user interface for changing
|
* system settings, such as a "power manager" app.</p>
|
* <p>This is an asynchronous call: it will return immediately, and
|
* clients should listen for {@link #ACTION_STATE_CHANGED}
|
* to be notified of subsequent adapter state changes. If this call returns
|
* true, then the adapter state will immediately transition from {@link
|
* #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time
|
* later transition to either {@link #STATE_OFF} or {@link
|
* #STATE_ON}. If this call returns false then there was an
|
* immediate problem that will prevent the adapter from being turned off -
|
* such as the adapter already being turned off.
|
*
|
* @return true to indicate adapter shutdown has begun, or false on immediate error
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean disable() {
|
try {
|
return mManagerService.disable(ActivityThread.currentPackageName(), true);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return false;
|
}
|
|
/**
|
* Turn off the local Bluetooth adapter and don't persist the setting.
|
*
|
* <p>Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN}
|
* permission
|
*
|
* @return true to indicate adapter shutdown has begun, or false on immediate error
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public boolean disable(boolean persist) {
|
|
try {
|
return mManagerService.disable(ActivityThread.currentPackageName(), persist);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return false;
|
}
|
|
/**
|
* Returns the hardware address of the local Bluetooth adapter.
|
* <p>For example, "00:11:22:AA:BB:CC".
|
*
|
* @return Bluetooth hardware address as string
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public String getAddress() {
|
try {
|
return mManagerService.getAddress();
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return null;
|
}
|
|
/**
|
* Get the friendly Bluetooth name of the local Bluetooth adapter.
|
* <p>This name is visible to remote Bluetooth devices.
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
|
*
|
* @return the Bluetooth name, or null on error
|
*/
|
public String getName() {
|
try {
|
return mManagerService.getName();
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return null;
|
}
|
|
/**
|
* Factory reset bluetooth settings.
|
*
|
* <p>Requires the {@link android.Manifest.permission#BLUETOOTH_PRIVILEGED}
|
* permission
|
*
|
* @return true to indicate that the config file was successfully cleared
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public boolean factoryReset() {
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null && mService.factoryReset()
|
&& mManagerService != null && mManagerService.onFactoryReset()) {
|
return true;
|
}
|
Log.e(TAG, "factoryReset(): Setting persist.bluetooth.factoryreset to retry later");
|
SystemProperties.set("persist.bluetooth.factoryreset", "true");
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Get the UUIDs supported by the local Bluetooth adapter.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
|
*
|
* @return the UUIDs supported by the local Bluetooth Adapter.
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public ParcelUuid[] getUuids() {
|
if (getState() != STATE_ON) {
|
return null;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getUuids();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return null;
|
}
|
|
/**
|
* Set the friendly Bluetooth name of the local Bluetooth adapter.
|
* <p>This name is visible to remote Bluetooth devices.
|
* <p>Valid Bluetooth names are a maximum of 248 bytes using UTF-8
|
* encoding, although many remote devices can only display the first
|
* 40 characters, and some may be limited to just 20.
|
* <p>If Bluetooth state is not {@link #STATE_ON}, this API
|
* will return false. After turning on Bluetooth,
|
* wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
|
* to get the updated value.
|
*
|
* @param name a valid Bluetooth name
|
* @return true if the name was set, false otherwise
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean setName(String name) {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.setName(name);
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Returns the {@link BluetoothClass} Bluetooth Class of Device (CoD) of the local Bluetooth
|
* adapter.
|
*
|
* @return {@link BluetoothClass} Bluetooth CoD of local Bluetooth device.
|
*
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public BluetoothClass getBluetoothClass() {
|
if (getState() != STATE_ON) {
|
return null;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getBluetoothClass();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return null;
|
}
|
|
/**
|
* Sets the {@link BluetoothClass} Bluetooth Class of Device (CoD) of the local Bluetooth
|
* adapter.
|
*
|
* <p>Note: This value persists across system reboot.
|
*
|
* @param bluetoothClass {@link BluetoothClass} to set the local Bluetooth adapter to.
|
* @return true if successful, false if unsuccessful.
|
*
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED)
|
public boolean setBluetoothClass(BluetoothClass bluetoothClass) {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.setBluetoothClass(bluetoothClass);
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Returns the Input/Output capability of the device for classic Bluetooth.
|
*
|
* @return Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
|
* {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN}, {@link #IO_CAPABILITY_NONE},
|
* {@link #IO_CAPABILITY_KBDISP} or {@link #IO_CAPABILITY_UNKNOWN}.
|
*
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
@IoCapability
|
public int getIoCapability() {
|
if (getState() != STATE_ON) return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) return mService.getIoCapability();
|
} catch (RemoteException e) {
|
Log.e(TAG, e.getMessage(), e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
|
}
|
|
/**
|
* Sets the Input/Output capability of the device for classic Bluetooth.
|
*
|
* <p>Changing the Input/Output capability of a device only takes effect on restarting the
|
* Bluetooth stack. You would need to restart the stack using {@link BluetoothAdapter#disable()}
|
* and {@link BluetoothAdapter#enable()} to see the changes.
|
*
|
* @param capability Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
|
* {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN},
|
* {@link #IO_CAPABILITY_NONE} or {@link #IO_CAPABILITY_KBDISP}.
|
*
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED)
|
public boolean setIoCapability(@IoCapability int capability) {
|
if (getState() != STATE_ON) return false;
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) return mService.setIoCapability(capability);
|
} catch (RemoteException e) {
|
Log.e(TAG, e.getMessage(), e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Returns the Input/Output capability of the device for BLE operations.
|
*
|
* @return Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
|
* {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN}, {@link #IO_CAPABILITY_NONE},
|
* {@link #IO_CAPABILITY_KBDISP} or {@link #IO_CAPABILITY_UNKNOWN}.
|
*
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
@IoCapability
|
public int getLeIoCapability() {
|
if (getState() != STATE_ON) return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) return mService.getLeIoCapability();
|
} catch (RemoteException e) {
|
Log.e(TAG, e.getMessage(), e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return BluetoothAdapter.IO_CAPABILITY_UNKNOWN;
|
}
|
|
/**
|
* Sets the Input/Output capability of the device for BLE operations.
|
*
|
* <p>Changing the Input/Output capability of a device only takes effect on restarting the
|
* Bluetooth stack. You would need to restart the stack using {@link BluetoothAdapter#disable()}
|
* and {@link BluetoothAdapter#enable()} to see the changes.
|
*
|
* @param capability Input/Output capability of the device. One of {@link #IO_CAPABILITY_OUT},
|
* {@link #IO_CAPABILITY_IO}, {@link #IO_CAPABILITY_IN},
|
* {@link #IO_CAPABILITY_NONE} or {@link #IO_CAPABILITY_KBDISP}.
|
*
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED)
|
public boolean setLeIoCapability(@IoCapability int capability) {
|
if (getState() != STATE_ON) return false;
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) return mService.setLeIoCapability(capability);
|
} catch (RemoteException e) {
|
Log.e(TAG, e.getMessage(), e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Get the current Bluetooth scan mode of the local Bluetooth adapter.
|
* <p>The Bluetooth scan mode determines if the local adapter is
|
* connectable and/or discoverable from remote Bluetooth devices.
|
* <p>Possible values are:
|
* {@link #SCAN_MODE_NONE},
|
* {@link #SCAN_MODE_CONNECTABLE},
|
* {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}.
|
* <p>If Bluetooth state is not {@link #STATE_ON}, this API
|
* will return {@link #SCAN_MODE_NONE}. After turning on Bluetooth,
|
* wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
|
* to get the updated value.
|
*
|
* @return scan mode
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
@ScanMode
|
public int getScanMode() {
|
if (getState() != STATE_ON) {
|
return SCAN_MODE_NONE;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getScanMode();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return SCAN_MODE_NONE;
|
}
|
|
/**
|
* Set the Bluetooth scan mode of the local Bluetooth adapter.
|
* <p>The Bluetooth scan mode determines if the local adapter is
|
* connectable and/or discoverable from remote Bluetooth devices.
|
* <p>For privacy reasons, discoverable mode is automatically turned off
|
* after <code>duration</code> seconds. For example, 120 seconds should be
|
* enough for a remote device to initiate and complete its discovery
|
* process.
|
* <p>Valid scan mode values are:
|
* {@link #SCAN_MODE_NONE},
|
* {@link #SCAN_MODE_CONNECTABLE},
|
* {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}.
|
* <p>If Bluetooth state is not {@link #STATE_ON}, this API
|
* will return false. After turning on Bluetooth,
|
* wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
|
* to get the updated value.
|
* <p>Requires {@link android.Manifest.permission#WRITE_SECURE_SETTINGS}
|
* <p>Applications cannot set the scan mode. They should use
|
* <code>startActivityForResult(
|
* BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE})
|
* </code>instead.
|
*
|
* @param mode valid scan mode
|
* @param duration time in seconds to apply scan mode, only used for {@link
|
* #SCAN_MODE_CONNECTABLE_DISCOVERABLE}
|
* @return true if the scan mode was set, false otherwise
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public boolean setScanMode(@ScanMode int mode, int duration) {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.setScanMode(mode, duration);
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/** @hide */
|
@UnsupportedAppUsage
|
public boolean setScanMode(int mode) {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
/* getDiscoverableTimeout() to use the latest from NV than use 0 */
|
return setScanMode(mode, getDiscoverableTimeout());
|
}
|
|
/** @hide */
|
@UnsupportedAppUsage
|
public int getDiscoverableTimeout() {
|
if (getState() != STATE_ON) {
|
return -1;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getDiscoverableTimeout();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return -1;
|
}
|
|
/** @hide */
|
@UnsupportedAppUsage
|
public void setDiscoverableTimeout(int timeout) {
|
if (getState() != STATE_ON) {
|
return;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
mService.setDiscoverableTimeout(timeout);
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
}
|
|
/**
|
* Get the end time of the latest remote device discovery process.
|
*
|
* @return the latest time that the bluetooth adapter was/will be in discovery mode, in
|
* milliseconds since the epoch. This time can be in the future if {@link #startDiscovery()} has
|
* been called recently.
|
* @hide
|
*/
|
public long getDiscoveryEndMillis() {
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getDiscoveryEndMillis();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return -1;
|
}
|
|
/**
|
* Set the context for this BluetoothAdapter (only called from BluetoothManager)
|
* @hide
|
*/
|
public void setContext(Context context) {
|
mContext = context;
|
}
|
|
private String getOpPackageName() {
|
// Workaround for legacy API for getting a BluetoothAdapter not
|
// passing a context
|
if (mContext != null) {
|
return mContext.getOpPackageName();
|
}
|
return ActivityThread.currentOpPackageName();
|
}
|
|
/**
|
* Start the remote device discovery process.
|
* <p>The discovery process usually involves an inquiry scan of about 12
|
* seconds, followed by a page scan of each new device to retrieve its
|
* Bluetooth name.
|
* <p>This is an asynchronous call, it will return immediately. Register
|
* for {@link #ACTION_DISCOVERY_STARTED} and {@link
|
* #ACTION_DISCOVERY_FINISHED} intents to determine exactly when the
|
* discovery starts and completes. Register for {@link
|
* BluetoothDevice#ACTION_FOUND} to be notified as remote Bluetooth devices
|
* are found.
|
* <p>Device discovery is a heavyweight procedure. New connections to
|
* remote Bluetooth devices should not be attempted while discovery is in
|
* progress, and existing connections will experience limited bandwidth
|
* and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing
|
* discovery. Discovery is not managed by the Activity,
|
* but is run as a system service, so an application should always call
|
* {@link BluetoothAdapter#cancelDiscovery()} even if it
|
* did not directly request a discovery, just to be sure.
|
* <p>Device discovery will only find remote devices that are currently
|
* <i>discoverable</i> (inquiry scan enabled). Many Bluetooth devices are
|
* not discoverable by default, and need to be entered into a special mode.
|
* <p>If Bluetooth state is not {@link #STATE_ON}, this API
|
* will return false. After turning on Bluetooth,
|
* wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
|
* to get the updated value.
|
*
|
* @return true on success, false on error
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean startDiscovery() {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.startDiscovery(getOpPackageName());
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Cancel the current device discovery process.
|
* <p>Because discovery is a heavyweight procedure for the Bluetooth
|
* adapter, this method should always be called before attempting to connect
|
* to a remote device with {@link
|
* android.bluetooth.BluetoothSocket#connect()}. Discovery is not managed by
|
* the Activity, but is run as a system service, so an application should
|
* always call cancel discovery even if it did not directly request a
|
* discovery, just to be sure.
|
* <p>If Bluetooth state is not {@link #STATE_ON}, this API
|
* will return false. After turning on Bluetooth,
|
* wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
|
* to get the updated value.
|
*
|
* @return true on success, false on error
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean cancelDiscovery() {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.cancelDiscovery();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return true if the local Bluetooth adapter is currently in the device
|
* discovery process.
|
* <p>Device discovery is a heavyweight procedure. New connections to
|
* remote Bluetooth devices should not be attempted while discovery is in
|
* progress, and existing connections will experience limited bandwidth
|
* and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing
|
* discovery.
|
* <p>Applications can also register for {@link #ACTION_DISCOVERY_STARTED}
|
* or {@link #ACTION_DISCOVERY_FINISHED} to be notified when discovery
|
* starts or completes.
|
* <p>If Bluetooth state is not {@link #STATE_ON}, this API
|
* will return false. After turning on Bluetooth,
|
* wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
|
* to get the updated value.
|
*
|
* @return true if discovering
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public boolean isDiscovering() {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isDiscovering();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return true if the multi advertisement is supported by the chipset
|
*
|
* @return true if Multiple Advertisement feature is supported
|
*/
|
public boolean isMultipleAdvertisementSupported() {
|
if (getState() != STATE_ON) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isMultiAdvertisementSupported();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get isMultipleAdvertisementSupported, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Returns {@code true} if BLE scan is always available, {@code false} otherwise. <p>
|
*
|
* If this returns {@code true}, application can issue {@link BluetoothLeScanner#startScan} and
|
* fetch scan results even when Bluetooth is turned off.<p>
|
*
|
* To change this setting, use {@link #ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE}.
|
*
|
* @hide
|
*/
|
@SystemApi
|
public boolean isBleScanAlwaysAvailable() {
|
try {
|
return mManagerService.isBleScanAlwaysAvailable();
|
} catch (RemoteException e) {
|
Log.e(TAG, "remote expection when calling isBleScanAlwaysAvailable", e);
|
return false;
|
}
|
}
|
|
/**
|
* Return true if offloaded filters are supported
|
*
|
* @return true if chipset supports on-chip filtering
|
*/
|
public boolean isOffloadedFilteringSupported() {
|
if (!getLeAccess()) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isOffloadedFilteringSupported();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return true if offloaded scan batching is supported
|
*
|
* @return true if chipset supports on-chip scan batching
|
*/
|
public boolean isOffloadedScanBatchingSupported() {
|
if (!getLeAccess()) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isOffloadedScanBatchingSupported();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get isOffloadedScanBatchingSupported, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return true if LE 2M PHY feature is supported.
|
*
|
* @return true if chipset supports LE 2M PHY feature
|
*/
|
public boolean isLe2MPhySupported() {
|
if (!getLeAccess()) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isLe2MPhySupported();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get isExtendedAdvertisingSupported, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return true if LE Coded PHY feature is supported.
|
*
|
* @return true if chipset supports LE Coded PHY feature
|
*/
|
public boolean isLeCodedPhySupported() {
|
if (!getLeAccess()) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isLeCodedPhySupported();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get isLeCodedPhySupported, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return true if LE Extended Advertising feature is supported.
|
*
|
* @return true if chipset supports LE Extended Advertising feature
|
*/
|
public boolean isLeExtendedAdvertisingSupported() {
|
if (!getLeAccess()) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isLeExtendedAdvertisingSupported();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get isLeExtendedAdvertisingSupported, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return true if LE Periodic Advertising feature is supported.
|
*
|
* @return true if chipset supports LE Periodic Advertising feature
|
*/
|
public boolean isLePeriodicAdvertisingSupported() {
|
if (!getLeAccess()) {
|
return false;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.isLePeriodicAdvertisingSupported();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get isLePeriodicAdvertisingSupported, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return false;
|
}
|
|
/**
|
* Return the maximum LE advertising data length in bytes,
|
* if LE Extended Advertising feature is supported, 0 otherwise.
|
*
|
* @return the maximum LE advertising data length.
|
*/
|
public int getLeMaximumAdvertisingDataLength() {
|
if (!getLeAccess()) {
|
return 0;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getLeMaximumAdvertisingDataLength();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get getLeMaximumAdvertisingDataLength, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return 0;
|
}
|
|
/**
|
* Return true if Hearing Aid Profile is supported.
|
*
|
* @return true if phone supports Hearing Aid Profile
|
*/
|
private boolean isHearingAidProfileSupported() {
|
try {
|
return mManagerService.isHearingAidProfileSupported();
|
} catch (RemoteException e) {
|
Log.e(TAG, "remote expection when calling isHearingAidProfileSupported", e);
|
return false;
|
}
|
}
|
|
/**
|
* Get the maximum number of connected audio devices.
|
*
|
* @return the maximum number of connected audio devices
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public int getMaxConnectedAudioDevices() {
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getMaxConnectedAudioDevices();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "failed to get getMaxConnectedAudioDevices, error: ", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return 1;
|
}
|
|
/**
|
* Return true if hardware has entries available for matching beacons
|
*
|
* @return true if there are hw entries available for matching beacons
|
* @hide
|
*/
|
public boolean isHardwareTrackingFiltersAvailable() {
|
if (!getLeAccess()) {
|
return false;
|
}
|
try {
|
IBluetoothGatt iGatt = mManagerService.getBluetoothGatt();
|
if (iGatt == null) {
|
// BLE is not supported
|
return false;
|
}
|
return (iGatt.numHwTrackFiltersAvailable() != 0);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return false;
|
}
|
|
/**
|
* Return the record of {@link BluetoothActivityEnergyInfo} object that
|
* has the activity and energy info. This can be used to ascertain what
|
* the controller has been up to, since the last sample.
|
*
|
* @param updateType Type of info, cached vs refreshed.
|
* @return a record with {@link BluetoothActivityEnergyInfo} or null if report is unavailable or
|
* unsupported
|
* @hide
|
* @deprecated use the asynchronous {@link #requestControllerActivityEnergyInfo(ResultReceiver)}
|
* instead.
|
*/
|
@Deprecated
|
public BluetoothActivityEnergyInfo getControllerActivityEnergyInfo(int updateType) {
|
SynchronousResultReceiver receiver = new SynchronousResultReceiver();
|
requestControllerActivityEnergyInfo(receiver);
|
try {
|
SynchronousResultReceiver.Result result = receiver.awaitResult(1000);
|
if (result.bundle != null) {
|
return result.bundle.getParcelable(BatteryStats.RESULT_RECEIVER_CONTROLLER_KEY);
|
}
|
} catch (TimeoutException e) {
|
Log.e(TAG, "getControllerActivityEnergyInfo timed out");
|
}
|
return null;
|
}
|
|
/**
|
* Request the record of {@link BluetoothActivityEnergyInfo} object that
|
* has the activity and energy info. This can be used to ascertain what
|
* the controller has been up to, since the last sample.
|
*
|
* A null value for the activity info object may be sent if the bluetooth service is
|
* unreachable or the device does not support reporting such information.
|
*
|
* @param result The callback to which to send the activity info.
|
* @hide
|
*/
|
public void requestControllerActivityEnergyInfo(ResultReceiver result) {
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
mService.requestActivityInfo(result);
|
result = null;
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "getControllerActivityEnergyInfoCallback: " + e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
if (result != null) {
|
// Only send an immediate result if we failed.
|
result.send(0, null);
|
}
|
}
|
}
|
|
/**
|
* Return the set of {@link BluetoothDevice} objects that are bonded
|
* (paired) to the local adapter.
|
* <p>If Bluetooth state is not {@link #STATE_ON}, this API
|
* will return an empty set. After turning on Bluetooth,
|
* wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON}
|
* to get the updated value.
|
*
|
* @return unmodifiable set of {@link BluetoothDevice}, or null on error
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public Set<BluetoothDevice> getBondedDevices() {
|
if (getState() != STATE_ON) {
|
return toDeviceSet(new BluetoothDevice[0]);
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return toDeviceSet(mService.getBondedDevices());
|
}
|
return toDeviceSet(new BluetoothDevice[0]);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return null;
|
}
|
|
/**
|
* Gets the currently supported profiles by the adapter.
|
*
|
* <p> This can be used to check whether a profile is supported before attempting
|
* to connect to its respective proxy.
|
*
|
* @return a list of integers indicating the ids of supported profiles as defined in {@link
|
* BluetoothProfile}.
|
* @hide
|
*/
|
public List<Integer> getSupportedProfiles() {
|
final ArrayList<Integer> supportedProfiles = new ArrayList<Integer>();
|
|
try {
|
synchronized (mManagerCallback) {
|
if (mService != null) {
|
final long supportedProfilesBitMask = mService.getSupportedProfiles();
|
|
for (int i = 0; i <= BluetoothProfile.MAX_PROFILE_ID; i++) {
|
if ((supportedProfilesBitMask & (1 << i)) != 0) {
|
supportedProfiles.add(i);
|
}
|
}
|
} else {
|
// Bluetooth is disabled. Just fill in known supported Profiles
|
if (isHearingAidProfileSupported()) {
|
supportedProfiles.add(BluetoothProfile.HEARING_AID);
|
}
|
}
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "getSupportedProfiles:", e);
|
}
|
return supportedProfiles;
|
}
|
|
/**
|
* Get the current connection state of the local Bluetooth adapter.
|
* This can be used to check whether the local Bluetooth adapter is connected
|
* to any profile of any other remote Bluetooth Device.
|
*
|
* <p> Use this function along with {@link #ACTION_CONNECTION_STATE_CHANGED}
|
* intent to get the connection state of the adapter.
|
*
|
* @return One of {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTED}, {@link
|
* #STATE_CONNECTING} or {@link #STATE_DISCONNECTED}
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public int getConnectionState() {
|
if (getState() != STATE_ON) {
|
return BluetoothAdapter.STATE_DISCONNECTED;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getAdapterConnectionState();
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "getConnectionState:", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return BluetoothAdapter.STATE_DISCONNECTED;
|
}
|
|
/**
|
* Get the current connection state of a profile.
|
* This function can be used to check whether the local Bluetooth adapter
|
* is connected to any remote device for a specific profile.
|
* Profile can be one of {@link BluetoothProfile#HEADSET}, {@link BluetoothProfile#A2DP}.
|
*
|
* <p> Return value can be one of
|
* {@link BluetoothProfile#STATE_DISCONNECTED},
|
* {@link BluetoothProfile#STATE_CONNECTING},
|
* {@link BluetoothProfile#STATE_CONNECTED},
|
* {@link BluetoothProfile#STATE_DISCONNECTING}
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public int getProfileConnectionState(int profile) {
|
if (getState() != STATE_ON) {
|
return BluetoothProfile.STATE_DISCONNECTED;
|
}
|
try {
|
mServiceLock.readLock().lock();
|
if (mService != null) {
|
return mService.getProfileConnectionState(profile);
|
}
|
} catch (RemoteException e) {
|
Log.e(TAG, "getProfileConnectionState:", e);
|
} finally {
|
mServiceLock.readLock().unlock();
|
}
|
return BluetoothProfile.STATE_DISCONNECTED;
|
}
|
|
/**
|
* Create a listening, secure RFCOMM Bluetooth socket.
|
* <p>A remote device connecting to this socket will be authenticated and
|
* communication on this socket will be encrypted.
|
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
|
* connections from a listening {@link BluetoothServerSocket}.
|
* <p>Valid RFCOMM channels are in range 1 to 30.
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}
|
*
|
* @param channel RFCOMM channel to listen on
|
* @return a listening RFCOMM BluetoothServerSocket
|
* @throws IOException on error, for example Bluetooth not available, or insufficient
|
* permissions, or channel in use.
|
* @hide
|
*/
|
public BluetoothServerSocket listenUsingRfcommOn(int channel) throws IOException {
|
return listenUsingRfcommOn(channel, false, false);
|
}
|
|
/**
|
* Create a listening, secure RFCOMM Bluetooth socket.
|
* <p>A remote device connecting to this socket will be authenticated and
|
* communication on this socket will be encrypted.
|
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
|
* connections from a listening {@link BluetoothServerSocket}.
|
* <p>Valid RFCOMM channels are in range 1 to 30.
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}
|
* <p>To auto assign a channel without creating a SDP record use
|
* {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as channel number.
|
*
|
* @param channel RFCOMM channel to listen on
|
* @param mitm enforce man-in-the-middle protection for authentication.
|
* @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2
|
* connections.
|
* @return a listening RFCOMM BluetoothServerSocket
|
* @throws IOException on error, for example Bluetooth not available, or insufficient
|
* permissions, or channel in use.
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public BluetoothServerSocket listenUsingRfcommOn(int channel, boolean mitm,
|
boolean min16DigitPin) throws IOException {
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, true, true, channel, mitm,
|
min16DigitPin);
|
int errno = socket.mSocket.bindListen();
|
if (channel == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
|
socket.setChannel(socket.mSocket.getPort());
|
}
|
if (errno != 0) {
|
//TODO(BT): Throw the same exception error code
|
// that the previous code was using.
|
//socket.mSocket.throwErrnoNative(errno);
|
throw new IOException("Error: " + errno);
|
}
|
return socket;
|
}
|
|
/**
|
* Create a listening, secure RFCOMM Bluetooth socket with Service Record.
|
* <p>A remote device connecting to this socket will be authenticated and
|
* communication on this socket will be encrypted.
|
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
|
* connections from a listening {@link BluetoothServerSocket}.
|
* <p>The system will assign an unused RFCOMM channel to listen on.
|
* <p>The system will also register a Service Discovery
|
* Protocol (SDP) record with the local SDP server containing the specified
|
* UUID, service name, and auto-assigned channel. Remote Bluetooth devices
|
* can use the same UUID to query our SDP server and discover which channel
|
* to connect to. This SDP record will be removed when this socket is
|
* closed, or if this application closes unexpectedly.
|
* <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
|
* connect to this socket from another device using the same {@link UUID}.
|
*
|
* @param name service name for SDP record
|
* @param uuid uuid for SDP record
|
* @return a listening RFCOMM BluetoothServerSocket
|
* @throws IOException on error, for example Bluetooth not available, or insufficient
|
* permissions, or channel in use.
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public BluetoothServerSocket listenUsingRfcommWithServiceRecord(String name, UUID uuid)
|
throws IOException {
|
return createNewRfcommSocketAndRecord(name, uuid, true, true);
|
}
|
|
/**
|
* Create a listening, insecure RFCOMM Bluetooth socket with Service Record.
|
* <p>The link key is not required to be authenticated, i.e the communication may be
|
* vulnerable to Man In the Middle attacks. For Bluetooth 2.1 devices,
|
* the link will be encrypted, as encryption is mandartory.
|
* For legacy devices (pre Bluetooth 2.1 devices) the link will not
|
* be encrypted. Use {@link #listenUsingRfcommWithServiceRecord}, if an
|
* encrypted and authenticated communication channel is desired.
|
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
|
* connections from a listening {@link BluetoothServerSocket}.
|
* <p>The system will assign an unused RFCOMM channel to listen on.
|
* <p>The system will also register a Service Discovery
|
* Protocol (SDP) record with the local SDP server containing the specified
|
* UUID, service name, and auto-assigned channel. Remote Bluetooth devices
|
* can use the same UUID to query our SDP server and discover which channel
|
* to connect to. This SDP record will be removed when this socket is
|
* closed, or if this application closes unexpectedly.
|
* <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
|
* connect to this socket from another device using the same {@link UUID}.
|
*
|
* @param name service name for SDP record
|
* @param uuid uuid for SDP record
|
* @return a listening RFCOMM BluetoothServerSocket
|
* @throws IOException on error, for example Bluetooth not available, or insufficient
|
* permissions, or channel in use.
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public BluetoothServerSocket listenUsingInsecureRfcommWithServiceRecord(String name, UUID uuid)
|
throws IOException {
|
return createNewRfcommSocketAndRecord(name, uuid, false, false);
|
}
|
|
/**
|
* Create a listening, encrypted,
|
* RFCOMM Bluetooth socket with Service Record.
|
* <p>The link will be encrypted, but the link key is not required to be authenticated
|
* i.e the communication is vulnerable to Man In the Middle attacks. Use
|
* {@link #listenUsingRfcommWithServiceRecord}, to ensure an authenticated link key.
|
* <p> Use this socket if authentication of link key is not possible.
|
* For example, for Bluetooth 2.1 devices, if any of the devices does not have
|
* an input and output capability or just has the ability to display a numeric key,
|
* a secure socket connection is not possible and this socket can be used.
|
* Use {@link #listenUsingInsecureRfcommWithServiceRecord}, if encryption is not required.
|
* For Bluetooth 2.1 devices, the link will be encrypted, as encryption is mandartory.
|
* For more details, refer to the Security Model section 5.2 (vol 3) of
|
* Bluetooth Core Specification version 2.1 + EDR.
|
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
|
* connections from a listening {@link BluetoothServerSocket}.
|
* <p>The system will assign an unused RFCOMM channel to listen on.
|
* <p>The system will also register a Service Discovery
|
* Protocol (SDP) record with the local SDP server containing the specified
|
* UUID, service name, and auto-assigned channel. Remote Bluetooth devices
|
* can use the same UUID to query our SDP server and discover which channel
|
* to connect to. This SDP record will be removed when this socket is
|
* closed, or if this application closes unexpectedly.
|
* <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
|
* connect to this socket from another device using the same {@link UUID}.
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
|
*
|
* @param name service name for SDP record
|
* @param uuid uuid for SDP record
|
* @return a listening RFCOMM BluetoothServerSocket
|
* @throws IOException on error, for example Bluetooth not available, or insufficient
|
* permissions, or channel in use.
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public BluetoothServerSocket listenUsingEncryptedRfcommWithServiceRecord(String name, UUID uuid)
|
throws IOException {
|
return createNewRfcommSocketAndRecord(name, uuid, false, true);
|
}
|
|
|
private BluetoothServerSocket createNewRfcommSocketAndRecord(String name, UUID uuid,
|
boolean auth, boolean encrypt) throws IOException {
|
BluetoothServerSocket socket;
|
socket = new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, auth, encrypt,
|
new ParcelUuid(uuid));
|
socket.setServiceName(name);
|
int errno = socket.mSocket.bindListen();
|
if (errno != 0) {
|
//TODO(BT): Throw the same exception error code
|
// that the previous code was using.
|
//socket.mSocket.throwErrnoNative(errno);
|
throw new IOException("Error: " + errno);
|
}
|
return socket;
|
}
|
|
/**
|
* Construct an unencrypted, unauthenticated, RFCOMM server socket.
|
* Call #accept to retrieve connections to this socket.
|
*
|
* @return An RFCOMM BluetoothServerSocket
|
* @throws IOException On error, for example Bluetooth not available, or insufficient
|
* permissions.
|
* @hide
|
*/
|
public BluetoothServerSocket listenUsingInsecureRfcommOn(int port) throws IOException {
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, false, false, port);
|
int errno = socket.mSocket.bindListen();
|
if (port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
|
socket.setChannel(socket.mSocket.getPort());
|
}
|
if (errno != 0) {
|
//TODO(BT): Throw the same exception error code
|
// that the previous code was using.
|
//socket.mSocket.throwErrnoNative(errno);
|
throw new IOException("Error: " + errno);
|
}
|
return socket;
|
}
|
|
/**
|
* Construct an encrypted, RFCOMM server socket.
|
* Call #accept to retrieve connections to this socket.
|
*
|
* @return An RFCOMM BluetoothServerSocket
|
* @throws IOException On error, for example Bluetooth not available, or insufficient
|
* permissions.
|
* @hide
|
*/
|
public BluetoothServerSocket listenUsingEncryptedRfcommOn(int port) throws IOException {
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, false, true, port);
|
int errno = socket.mSocket.bindListen();
|
if (port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
|
socket.setChannel(socket.mSocket.getPort());
|
}
|
if (errno < 0) {
|
//TODO(BT): Throw the same exception error code
|
// that the previous code was using.
|
//socket.mSocket.throwErrnoNative(errno);
|
throw new IOException("Error: " + errno);
|
}
|
return socket;
|
}
|
|
/**
|
* Construct a SCO server socket.
|
* Call #accept to retrieve connections to this socket.
|
*
|
* @return A SCO BluetoothServerSocket
|
* @throws IOException On error, for example Bluetooth not available, or insufficient
|
* permissions.
|
* @hide
|
*/
|
public static BluetoothServerSocket listenUsingScoOn() throws IOException {
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_SCO, false, false, -1);
|
int errno = socket.mSocket.bindListen();
|
if (errno < 0) {
|
//TODO(BT): Throw the same exception error code
|
// that the previous code was using.
|
//socket.mSocket.throwErrnoNative(errno);
|
}
|
return socket;
|
}
|
|
/**
|
* Construct an encrypted, authenticated, L2CAP server socket.
|
* Call #accept to retrieve connections to this socket.
|
* <p>To auto assign a port without creating a SDP record use
|
* {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number.
|
*
|
* @param port the PSM to listen on
|
* @param mitm enforce man-in-the-middle protection for authentication.
|
* @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2
|
* connections.
|
* @return An L2CAP BluetoothServerSocket
|
* @throws IOException On error, for example Bluetooth not available, or insufficient
|
* permissions.
|
* @hide
|
*/
|
public BluetoothServerSocket listenUsingL2capOn(int port, boolean mitm, boolean min16DigitPin)
|
throws IOException {
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP, true, true, port, mitm,
|
min16DigitPin);
|
int errno = socket.mSocket.bindListen();
|
if (port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
|
int assignedChannel = socket.mSocket.getPort();
|
if (DBG) Log.d(TAG, "listenUsingL2capOn: set assigned channel to " + assignedChannel);
|
socket.setChannel(assignedChannel);
|
}
|
if (errno != 0) {
|
//TODO(BT): Throw the same exception error code
|
// that the previous code was using.
|
//socket.mSocket.throwErrnoNative(errno);
|
throw new IOException("Error: " + errno);
|
}
|
return socket;
|
}
|
|
/**
|
* Construct an encrypted, authenticated, L2CAP server socket.
|
* Call #accept to retrieve connections to this socket.
|
* <p>To auto assign a port without creating a SDP record use
|
* {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number.
|
*
|
* @param port the PSM to listen on
|
* @return An L2CAP BluetoothServerSocket
|
* @throws IOException On error, for example Bluetooth not available, or insufficient
|
* permissions.
|
* @hide
|
*/
|
public BluetoothServerSocket listenUsingL2capOn(int port) throws IOException {
|
return listenUsingL2capOn(port, false, false);
|
}
|
|
|
/**
|
* Construct an insecure L2CAP server socket.
|
* Call #accept to retrieve connections to this socket.
|
* <p>To auto assign a port without creating a SDP record use
|
* {@link #SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number.
|
*
|
* @param port the PSM to listen on
|
* @return An L2CAP BluetoothServerSocket
|
* @throws IOException On error, for example Bluetooth not available, or insufficient
|
* permissions.
|
* @hide
|
*/
|
public BluetoothServerSocket listenUsingInsecureL2capOn(int port) throws IOException {
|
Log.d(TAG, "listenUsingInsecureL2capOn: port=" + port);
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP, false, false, port, false,
|
false);
|
int errno = socket.mSocket.bindListen();
|
if (port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) {
|
int assignedChannel = socket.mSocket.getPort();
|
if (DBG) {
|
Log.d(TAG, "listenUsingInsecureL2capOn: set assigned channel to "
|
+ assignedChannel);
|
}
|
socket.setChannel(assignedChannel);
|
}
|
if (errno != 0) {
|
//TODO(BT): Throw the same exception error code
|
// that the previous code was using.
|
//socket.mSocket.throwErrnoNative(errno);
|
throw new IOException("Error: " + errno);
|
}
|
return socket;
|
|
}
|
|
/**
|
* Read the local Out of Band Pairing Data
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
|
*
|
* @return Pair<byte[], byte[]> of Hash and Randomizer
|
* @hide
|
*/
|
public Pair<byte[], byte[]> readOutOfBandData() {
|
return null;
|
}
|
|
/**
|
* Get the profile proxy object associated with the profile.
|
*
|
* <p>Profile can be one of {@link BluetoothProfile#HEADSET}, {@link BluetoothProfile#A2DP},
|
* {@link BluetoothProfile#GATT}, {@link BluetoothProfile#HEARING_AID}, or {@link
|
* BluetoothProfile#GATT_SERVER}. Clients must implement {@link
|
* BluetoothProfile.ServiceListener} to get notified of the connection status and to get the
|
* proxy object.
|
*
|
* @param context Context of the application
|
* @param listener The service Listener for connection callbacks.
|
* @param profile The Bluetooth profile; either {@link BluetoothProfile#HEADSET},
|
* {@link BluetoothProfile#A2DP}, {@link BluetoothProfile#GATT}, {@link
|
* BluetoothProfile#HEARING_AID} or {@link BluetoothProfile#GATT_SERVER}.
|
* @return true on success, false on error
|
*/
|
public boolean getProfileProxy(Context context, BluetoothProfile.ServiceListener listener,
|
int profile) {
|
if (context == null || listener == null) {
|
return false;
|
}
|
|
if (profile == BluetoothProfile.HEADSET) {
|
BluetoothHeadset headset = new BluetoothHeadset(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.A2DP) {
|
BluetoothA2dp a2dp = new BluetoothA2dp(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.A2DP_SINK) {
|
BluetoothA2dpSink a2dpSink = new BluetoothA2dpSink(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.AVRCP_CONTROLLER) {
|
BluetoothAvrcpController avrcp = new BluetoothAvrcpController(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.HID_HOST) {
|
BluetoothHidHost iDev = new BluetoothHidHost(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.PAN) {
|
BluetoothPan pan = new BluetoothPan(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.HEALTH) {
|
Log.e(TAG, "getProfileProxy(): BluetoothHealth is deprecated");
|
return false;
|
} else if (profile == BluetoothProfile.MAP) {
|
BluetoothMap map = new BluetoothMap(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.HEADSET_CLIENT) {
|
BluetoothHeadsetClient headsetClient = new BluetoothHeadsetClient(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.SAP) {
|
BluetoothSap sap = new BluetoothSap(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.PBAP_CLIENT) {
|
BluetoothPbapClient pbapClient = new BluetoothPbapClient(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.MAP_CLIENT) {
|
BluetoothMapClient mapClient = new BluetoothMapClient(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.HID_DEVICE) {
|
BluetoothHidDevice hidDevice = new BluetoothHidDevice(context, listener);
|
return true;
|
} else if (profile == BluetoothProfile.HEARING_AID) {
|
if (isHearingAidProfileSupported()) {
|
BluetoothHearingAid hearingAid = new BluetoothHearingAid(context, listener);
|
return true;
|
}
|
return false;
|
} else {
|
return false;
|
}
|
}
|
|
/**
|
* Close the connection of the profile proxy to the Service.
|
*
|
* <p> Clients should call this when they are no longer using
|
* the proxy obtained from {@link #getProfileProxy}.
|
* Profile can be one of {@link BluetoothProfile#HEADSET} or {@link BluetoothProfile#A2DP}
|
*
|
* @param profile
|
* @param proxy Profile proxy object
|
*/
|
public void closeProfileProxy(int profile, BluetoothProfile proxy) {
|
if (proxy == null) {
|
return;
|
}
|
|
switch (profile) {
|
case BluetoothProfile.HEADSET:
|
BluetoothHeadset headset = (BluetoothHeadset) proxy;
|
headset.close();
|
break;
|
case BluetoothProfile.A2DP:
|
BluetoothA2dp a2dp = (BluetoothA2dp) proxy;
|
a2dp.close();
|
break;
|
case BluetoothProfile.A2DP_SINK:
|
BluetoothA2dpSink a2dpSink = (BluetoothA2dpSink) proxy;
|
a2dpSink.close();
|
break;
|
case BluetoothProfile.AVRCP_CONTROLLER:
|
BluetoothAvrcpController avrcp = (BluetoothAvrcpController) proxy;
|
avrcp.close();
|
break;
|
case BluetoothProfile.HID_HOST:
|
BluetoothHidHost iDev = (BluetoothHidHost) proxy;
|
iDev.close();
|
break;
|
case BluetoothProfile.PAN:
|
BluetoothPan pan = (BluetoothPan) proxy;
|
pan.close();
|
break;
|
case BluetoothProfile.GATT:
|
BluetoothGatt gatt = (BluetoothGatt) proxy;
|
gatt.close();
|
break;
|
case BluetoothProfile.GATT_SERVER:
|
BluetoothGattServer gattServer = (BluetoothGattServer) proxy;
|
gattServer.close();
|
break;
|
case BluetoothProfile.MAP:
|
BluetoothMap map = (BluetoothMap) proxy;
|
map.close();
|
break;
|
case BluetoothProfile.HEADSET_CLIENT:
|
BluetoothHeadsetClient headsetClient = (BluetoothHeadsetClient) proxy;
|
headsetClient.close();
|
break;
|
case BluetoothProfile.SAP:
|
BluetoothSap sap = (BluetoothSap) proxy;
|
sap.close();
|
break;
|
case BluetoothProfile.PBAP_CLIENT:
|
BluetoothPbapClient pbapClient = (BluetoothPbapClient) proxy;
|
pbapClient.close();
|
break;
|
case BluetoothProfile.MAP_CLIENT:
|
BluetoothMapClient mapClient = (BluetoothMapClient) proxy;
|
mapClient.close();
|
break;
|
case BluetoothProfile.HID_DEVICE:
|
BluetoothHidDevice hidDevice = (BluetoothHidDevice) proxy;
|
hidDevice.close();
|
break;
|
case BluetoothProfile.HEARING_AID:
|
BluetoothHearingAid hearingAid = (BluetoothHearingAid) proxy;
|
hearingAid.close();
|
}
|
}
|
|
private final IBluetoothManagerCallback mManagerCallback =
|
new IBluetoothManagerCallback.Stub() {
|
public void onBluetoothServiceUp(IBluetooth bluetoothService) {
|
if (DBG) {
|
Log.d(TAG, "onBluetoothServiceUp: " + bluetoothService);
|
}
|
|
mServiceLock.writeLock().lock();
|
mService = bluetoothService;
|
mServiceLock.writeLock().unlock();
|
|
synchronized (mProxyServiceStateCallbacks) {
|
for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks) {
|
try {
|
if (cb != null) {
|
cb.onBluetoothServiceUp(bluetoothService);
|
} else {
|
Log.d(TAG, "onBluetoothServiceUp: cb is null!");
|
}
|
} catch (Exception e) {
|
Log.e(TAG, "", e);
|
}
|
}
|
}
|
synchronized (sMetadataListeners) {
|
sMetadataListeners.forEach((device, pair) -> {
|
try {
|
mService.registerMetadataListener(sBluetoothMetadataListener,
|
device);
|
} catch (RemoteException e) {
|
Log.e(TAG, "Failed to register metadata listener", e);
|
}
|
});
|
}
|
}
|
|
public void onBluetoothServiceDown() {
|
if (DBG) {
|
Log.d(TAG, "onBluetoothServiceDown: " + mService);
|
}
|
|
try {
|
mServiceLock.writeLock().lock();
|
mService = null;
|
if (mLeScanClients != null) {
|
mLeScanClients.clear();
|
}
|
if (sBluetoothLeAdvertiser != null) {
|
sBluetoothLeAdvertiser.cleanup();
|
}
|
if (sBluetoothLeScanner != null) {
|
sBluetoothLeScanner.cleanup();
|
}
|
} finally {
|
mServiceLock.writeLock().unlock();
|
}
|
|
synchronized (mProxyServiceStateCallbacks) {
|
for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks) {
|
try {
|
if (cb != null) {
|
cb.onBluetoothServiceDown();
|
} else {
|
Log.d(TAG, "onBluetoothServiceDown: cb is null!");
|
}
|
} catch (Exception e) {
|
Log.e(TAG, "", e);
|
}
|
}
|
}
|
}
|
|
public void onBrEdrDown() {
|
if (VDBG) {
|
Log.i(TAG, "onBrEdrDown: " + mService);
|
}
|
}
|
};
|
|
/**
|
* Enable the Bluetooth Adapter, but don't auto-connect devices
|
* and don't persist state. Only for use by system applications.
|
*
|
* @hide
|
*/
|
@SystemApi
|
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean enableNoAutoConnect() {
|
if (isEnabled()) {
|
if (DBG) {
|
Log.d(TAG, "enableNoAutoConnect(): BT already enabled!");
|
}
|
return true;
|
}
|
try {
|
return mManagerService.enableNoAutoConnect(ActivityThread.currentPackageName());
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
return false;
|
}
|
|
/**
|
* Enable control of the Bluetooth Adapter for a single application.
|
*
|
* <p>Some applications need to use Bluetooth for short periods of time to
|
* transfer data but don't want all the associated implications like
|
* automatic connection to headsets etc.
|
*
|
* <p> Multiple applications can call this. This is reference counted and
|
* Bluetooth disabled only when no one else is using it. There will be no UI
|
* shown to the user while bluetooth is being enabled. Any user action will
|
* override this call. For example, if user wants Bluetooth on and the last
|
* user of this API wanted to disable Bluetooth, Bluetooth will not be
|
* turned off.
|
*
|
* <p> This API is only meant to be used by internal applications. Third
|
* party applications but use {@link #enable} and {@link #disable} APIs.
|
*
|
* <p> If this API returns true, it means the callback will be called.
|
* The callback will be called with the current state of Bluetooth.
|
* If the state is not what was requested, an internal error would be the
|
* reason. If Bluetooth is already on and if this function is called to turn
|
* it on, the api will return true and a callback will be called.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
|
*
|
* @param on True for on, false for off.
|
* @param callback The callback to notify changes to the state.
|
* @hide
|
*/
|
public boolean changeApplicationBluetoothState(boolean on,
|
BluetoothStateChangeCallback callback) {
|
return false;
|
}
|
|
/**
|
* @hide
|
*/
|
public interface BluetoothStateChangeCallback {
|
/**
|
* @hide
|
*/
|
void onBluetoothStateChange(boolean on);
|
}
|
|
/**
|
* @hide
|
*/
|
public class StateChangeCallbackWrapper extends IBluetoothStateChangeCallback.Stub {
|
private BluetoothStateChangeCallback mCallback;
|
|
StateChangeCallbackWrapper(BluetoothStateChangeCallback callback) {
|
mCallback = callback;
|
}
|
|
@Override
|
public void onBluetoothStateChange(boolean on) {
|
mCallback.onBluetoothStateChange(on);
|
}
|
}
|
|
private Set<BluetoothDevice> toDeviceSet(BluetoothDevice[] devices) {
|
Set<BluetoothDevice> deviceSet = new HashSet<BluetoothDevice>(Arrays.asList(devices));
|
return Collections.unmodifiableSet(deviceSet);
|
}
|
|
protected void finalize() throws Throwable {
|
try {
|
mManagerService.unregisterAdapter(mManagerCallback);
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
} finally {
|
super.finalize();
|
}
|
}
|
|
|
/**
|
* Validate a String Bluetooth address, such as "00:43:A8:23:10:F0"
|
* <p>Alphabetic characters must be uppercase to be valid.
|
*
|
* @param address Bluetooth address as string
|
* @return true if the address is valid, false otherwise
|
*/
|
public static boolean checkBluetoothAddress(String address) {
|
if (address == null || address.length() != ADDRESS_LENGTH) {
|
return false;
|
}
|
for (int i = 0; i < ADDRESS_LENGTH; i++) {
|
char c = address.charAt(i);
|
switch (i % 3) {
|
case 0:
|
case 1:
|
if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F')) {
|
// hex character, OK
|
break;
|
}
|
return false;
|
case 2:
|
if (c == ':') {
|
break; // OK
|
}
|
return false;
|
}
|
}
|
return true;
|
}
|
|
@UnsupportedAppUsage
|
/*package*/ IBluetoothManager getBluetoothManager() {
|
return mManagerService;
|
}
|
|
private final ArrayList<IBluetoothManagerCallback> mProxyServiceStateCallbacks =
|
new ArrayList<IBluetoothManagerCallback>();
|
|
@UnsupportedAppUsage
|
/*package*/ IBluetooth getBluetoothService(IBluetoothManagerCallback cb) {
|
synchronized (mProxyServiceStateCallbacks) {
|
if (cb == null) {
|
Log.w(TAG, "getBluetoothService() called with no BluetoothManagerCallback");
|
} else if (!mProxyServiceStateCallbacks.contains(cb)) {
|
mProxyServiceStateCallbacks.add(cb);
|
}
|
}
|
return mService;
|
}
|
|
/*package*/ void removeServiceStateCallback(IBluetoothManagerCallback cb) {
|
synchronized (mProxyServiceStateCallbacks) {
|
mProxyServiceStateCallbacks.remove(cb);
|
}
|
}
|
|
/**
|
* Callback interface used to deliver LE scan results.
|
*
|
* @see #startLeScan(LeScanCallback)
|
* @see #startLeScan(UUID[], LeScanCallback)
|
*/
|
public interface LeScanCallback {
|
/**
|
* Callback reporting an LE device found during a device scan initiated
|
* by the {@link BluetoothAdapter#startLeScan} function.
|
*
|
* @param device Identifies the remote device
|
* @param rssi The RSSI value for the remote device as reported by the Bluetooth hardware. 0
|
* if no RSSI value is available.
|
* @param scanRecord The content of the advertisement record offered by the remote device.
|
*/
|
void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord);
|
}
|
|
/**
|
* Starts a scan for Bluetooth LE devices.
|
*
|
* <p>Results of the scan are reported using the
|
* {@link LeScanCallback#onLeScan} callback.
|
*
|
* @param callback the callback LE scan results are delivered
|
* @return true, if the scan was started successfully
|
* @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)}
|
* instead.
|
*/
|
@Deprecated
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean startLeScan(LeScanCallback callback) {
|
return startLeScan(null, callback);
|
}
|
|
/**
|
* Starts a scan for Bluetooth LE devices, looking for devices that
|
* advertise given services.
|
*
|
* <p>Devices which advertise all specified services are reported using the
|
* {@link LeScanCallback#onLeScan} callback.
|
*
|
* @param serviceUuids Array of services to look for
|
* @param callback the callback LE scan results are delivered
|
* @return true, if the scan was started successfully
|
* @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)}
|
* instead.
|
*/
|
@Deprecated
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public boolean startLeScan(final UUID[] serviceUuids, final LeScanCallback callback) {
|
if (DBG) {
|
Log.d(TAG, "startLeScan(): " + Arrays.toString(serviceUuids));
|
}
|
if (callback == null) {
|
if (DBG) {
|
Log.e(TAG, "startLeScan: null callback");
|
}
|
return false;
|
}
|
BluetoothLeScanner scanner = getBluetoothLeScanner();
|
if (scanner == null) {
|
if (DBG) {
|
Log.e(TAG, "startLeScan: cannot get BluetoothLeScanner");
|
}
|
return false;
|
}
|
|
synchronized (mLeScanClients) {
|
if (mLeScanClients.containsKey(callback)) {
|
if (DBG) {
|
Log.e(TAG, "LE Scan has already started");
|
}
|
return false;
|
}
|
|
try {
|
IBluetoothGatt iGatt = mManagerService.getBluetoothGatt();
|
if (iGatt == null) {
|
// BLE is not supported
|
return false;
|
}
|
|
ScanCallback scanCallback = new ScanCallback() {
|
@Override
|
public void onScanResult(int callbackType, ScanResult result) {
|
if (callbackType != ScanSettings.CALLBACK_TYPE_ALL_MATCHES) {
|
// Should not happen.
|
Log.e(TAG, "LE Scan has already started");
|
return;
|
}
|
ScanRecord scanRecord = result.getScanRecord();
|
if (scanRecord == null) {
|
return;
|
}
|
if (serviceUuids != null) {
|
List<ParcelUuid> uuids = new ArrayList<ParcelUuid>();
|
for (UUID uuid : serviceUuids) {
|
uuids.add(new ParcelUuid(uuid));
|
}
|
List<ParcelUuid> scanServiceUuids = scanRecord.getServiceUuids();
|
if (scanServiceUuids == null || !scanServiceUuids.containsAll(uuids)) {
|
if (DBG) {
|
Log.d(TAG, "uuids does not match");
|
}
|
return;
|
}
|
}
|
callback.onLeScan(result.getDevice(), result.getRssi(),
|
scanRecord.getBytes());
|
}
|
};
|
ScanSettings settings = new ScanSettings.Builder().setCallbackType(
|
ScanSettings.CALLBACK_TYPE_ALL_MATCHES)
|
.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY)
|
.build();
|
|
List<ScanFilter> filters = new ArrayList<ScanFilter>();
|
if (serviceUuids != null && serviceUuids.length > 0) {
|
// Note scan filter does not support matching an UUID array so we put one
|
// UUID to hardware and match the whole array in callback.
|
ScanFilter filter =
|
new ScanFilter.Builder().setServiceUuid(new ParcelUuid(serviceUuids[0]))
|
.build();
|
filters.add(filter);
|
}
|
scanner.startScan(filters, settings, scanCallback);
|
|
mLeScanClients.put(callback, scanCallback);
|
return true;
|
|
} catch (RemoteException e) {
|
Log.e(TAG, "", e);
|
}
|
}
|
return false;
|
}
|
|
/**
|
* Stops an ongoing Bluetooth LE device scan.
|
*
|
* @param callback used to identify which scan to stop must be the same handle used to start the
|
* scan
|
* @deprecated Use {@link BluetoothLeScanner#stopScan(ScanCallback)} instead.
|
*/
|
@Deprecated
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
public void stopLeScan(LeScanCallback callback) {
|
if (DBG) {
|
Log.d(TAG, "stopLeScan()");
|
}
|
BluetoothLeScanner scanner = getBluetoothLeScanner();
|
if (scanner == null) {
|
return;
|
}
|
synchronized (mLeScanClients) {
|
ScanCallback scanCallback = mLeScanClients.remove(callback);
|
if (scanCallback == null) {
|
if (DBG) {
|
Log.d(TAG, "scan not started yet");
|
}
|
return;
|
}
|
scanner.stopScan(scanCallback);
|
}
|
}
|
|
/**
|
* Create a secure L2CAP Connection-oriented Channel (CoC) {@link BluetoothServerSocket} and
|
* assign a dynamic protocol/service multiplexer (PSM) value. This socket can be used to listen
|
* for incoming connections. The supported Bluetooth transport is LE only.
|
* <p>A remote device connecting to this socket will be authenticated and communication on this
|
* socket will be encrypted.
|
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming connections from a listening
|
* {@link BluetoothServerSocket}.
|
* <p>The system will assign a dynamic PSM value. This PSM value can be read from the {@link
|
* BluetoothServerSocket#getPsm()} and this value will be released when this server socket is
|
* closed, Bluetooth is turned off, or the application exits unexpectedly.
|
* <p>The mechanism of disclosing the assigned dynamic PSM value to the initiating peer is
|
* defined and performed by the application.
|
* <p>Use {@link BluetoothDevice#createL2capChannel(int)} to connect to this server
|
* socket from another Android device that is given the PSM value.
|
*
|
* @return an L2CAP CoC BluetoothServerSocket
|
* @throws IOException on error, for example Bluetooth not available, or insufficient
|
* permissions, or unable to start this CoC
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public @NonNull BluetoothServerSocket listenUsingL2capChannel()
|
throws IOException {
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP_LE, true, true,
|
SOCKET_CHANNEL_AUTO_STATIC_NO_SDP, false, false);
|
int errno = socket.mSocket.bindListen();
|
if (errno != 0) {
|
throw new IOException("Error: " + errno);
|
}
|
|
int assignedPsm = socket.mSocket.getPort();
|
if (assignedPsm == 0) {
|
throw new IOException("Error: Unable to assign PSM value");
|
}
|
if (DBG) {
|
Log.d(TAG, "listenUsingL2capChannel: set assigned PSM to "
|
+ assignedPsm);
|
}
|
socket.setChannel(assignedPsm);
|
|
return socket;
|
}
|
|
/**
|
* TODO: Remove this hidden method once all the SL4A and other tests are updated to use the new
|
* API name, listenUsingL2capChannel.
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public BluetoothServerSocket listenUsingL2capCoc(int transport)
|
throws IOException {
|
Log.e(TAG, "listenUsingL2capCoc: PLEASE USE THE OFFICIAL API, listenUsingL2capChannel");
|
return listenUsingL2capChannel();
|
}
|
|
/**
|
* Create an insecure L2CAP Connection-oriented Channel (CoC) {@link BluetoothServerSocket} and
|
* assign a dynamic PSM value. This socket can be used to listen for incoming connections. The
|
* supported Bluetooth transport is LE only.
|
* <p>The link key is not required to be authenticated, i.e the communication may be vulnerable
|
* to man-in-the-middle attacks. Use {@link #listenUsingL2capChannel}, if an encrypted and
|
* authenticated communication channel is desired.
|
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming connections from a listening
|
* {@link BluetoothServerSocket}.
|
* <p>The system will assign a dynamic protocol/service multiplexer (PSM) value. This PSM value
|
* can be read from the {@link BluetoothServerSocket#getPsm()} and this value will be released
|
* when this server socket is closed, Bluetooth is turned off, or the application exits
|
* unexpectedly.
|
* <p>The mechanism of disclosing the assigned dynamic PSM value to the initiating peer is
|
* defined and performed by the application.
|
* <p>Use {@link BluetoothDevice#createInsecureL2capChannel(int)} to connect to this server
|
* socket from another Android device that is given the PSM value.
|
*
|
* @return an L2CAP CoC BluetoothServerSocket
|
* @throws IOException on error, for example Bluetooth not available, or insufficient
|
* permissions, or unable to start this CoC
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public @NonNull BluetoothServerSocket listenUsingInsecureL2capChannel()
|
throws IOException {
|
BluetoothServerSocket socket =
|
new BluetoothServerSocket(BluetoothSocket.TYPE_L2CAP_LE, false, false,
|
SOCKET_CHANNEL_AUTO_STATIC_NO_SDP, false, false);
|
int errno = socket.mSocket.bindListen();
|
if (errno != 0) {
|
throw new IOException("Error: " + errno);
|
}
|
|
int assignedPsm = socket.mSocket.getPort();
|
if (assignedPsm == 0) {
|
throw new IOException("Error: Unable to assign PSM value");
|
}
|
if (DBG) {
|
Log.d(TAG, "listenUsingInsecureL2capChannel: set assigned PSM to "
|
+ assignedPsm);
|
}
|
socket.setChannel(assignedPsm);
|
|
return socket;
|
}
|
|
/**
|
* TODO: Remove this hidden method once all the SL4A and other tests are updated to use the new
|
* API name, listenUsingInsecureL2capChannel.
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH)
|
public BluetoothServerSocket listenUsingInsecureL2capCoc(int transport)
|
throws IOException {
|
Log.e(TAG, "listenUsingInsecureL2capCoc: PLEASE USE THE OFFICIAL API, "
|
+ "listenUsingInsecureL2capChannel");
|
return listenUsingInsecureL2capChannel();
|
}
|
|
/**
|
* Register a {@link #OnMetadataChangedListener} to receive update about metadata
|
* changes for this {@link BluetoothDevice}.
|
* Registration must be done when Bluetooth is ON and will last until
|
* {@link #removeOnMetadataChangedListener(BluetoothDevice)} is called, even when Bluetooth
|
* restarted in the middle.
|
* All input parameters should not be null or {@link NullPointerException} will be triggered.
|
* The same {@link BluetoothDevice} and {@link #OnMetadataChangedListener} pair can only be
|
* registered once, double registration would cause {@link IllegalArgumentException}.
|
*
|
* @param device {@link BluetoothDevice} that will be registered
|
* @param executor the executor for listener callback
|
* @param listener {@link #OnMetadataChangedListener} that will receive asynchronous callbacks
|
* @return true on success, false on error
|
* @throws NullPointerException If one of {@code listener}, {@code device} or {@code executor}
|
* is null.
|
* @throws IllegalArgumentException The same {@link #OnMetadataChangedListener} and
|
* {@link BluetoothDevice} are registered twice.
|
* @hide
|
*/
|
@SystemApi
|
@RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED)
|
public boolean addOnMetadataChangedListener(@NonNull BluetoothDevice device,
|
@NonNull Executor executor, @NonNull OnMetadataChangedListener listener) {
|
if (DBG) Log.d(TAG, "addOnMetadataChangedListener()");
|
|
final IBluetooth service = mService;
|
if (service == null) {
|
Log.e(TAG, "Bluetooth is not enabled. Cannot register metadata listener");
|
return false;
|
}
|
if (listener == null) {
|
throw new NullPointerException("listener is null");
|
}
|
if (device == null) {
|
throw new NullPointerException("device is null");
|
}
|
if (executor == null) {
|
throw new NullPointerException("executor is null");
|
}
|
|
synchronized (sMetadataListeners) {
|
List<Pair<OnMetadataChangedListener, Executor>> listenerList =
|
sMetadataListeners.get(device);
|
if (listenerList == null) {
|
// Create new listener/executor list for registeration
|
listenerList = new ArrayList<>();
|
sMetadataListeners.put(device, listenerList);
|
} else {
|
// Check whether this device was already registed by the lisenter
|
if (listenerList.stream().anyMatch((pair) -> (pair.first.equals(listener)))) {
|
throw new IllegalArgumentException("listener was already regestered"
|
+ " for the device");
|
}
|
}
|
|
Pair<OnMetadataChangedListener, Executor> listenerPair = new Pair(listener, executor);
|
listenerList.add(listenerPair);
|
|
boolean ret = false;
|
try {
|
ret = service.registerMetadataListener(sBluetoothMetadataListener, device);
|
} catch (RemoteException e) {
|
Log.e(TAG, "registerMetadataListener fail", e);
|
} finally {
|
if (!ret) {
|
// Remove listener registered earlier when fail.
|
listenerList.remove(listenerPair);
|
if (listenerList.isEmpty()) {
|
// Remove the device if its listener list is empty
|
sMetadataListeners.remove(device);
|
}
|
}
|
}
|
return ret;
|
}
|
}
|
|
/**
|
* Unregister a {@link #OnMetadataChangedListener} from a registered {@link BluetoothDevice}.
|
* Unregistration can be done when Bluetooth is either ON or OFF.
|
* {@link #addOnMetadataChangedListener(OnMetadataChangedListener, BluetoothDevice, Executor)}
|
* must be called before unregisteration.
|
*
|
* @param device {@link BluetoothDevice} that will be unregistered. It
|
* should not be null or {@link NullPointerException} will be triggered.
|
* @param listener {@link OnMetadataChangedListener} that will be unregistered. It
|
* should not be null or {@link NullPointerException} will be triggered.
|
* @return true on success, false on error
|
* @throws NullPointerException If {@code listener} or {@code device} is null.
|
* @throws IllegalArgumentException If {@code device} has not been registered before.
|
* @hide
|
*/
|
@SystemApi
|
@RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED)
|
public boolean removeOnMetadataChangedListener(@NonNull BluetoothDevice device,
|
@NonNull OnMetadataChangedListener listener) {
|
if (DBG) Log.d(TAG, "removeOnMetadataChangedListener()");
|
if (device == null) {
|
throw new NullPointerException("device is null");
|
}
|
if (listener == null) {
|
throw new NullPointerException("listener is null");
|
}
|
|
synchronized (sMetadataListeners) {
|
if (!sMetadataListeners.containsKey(device)) {
|
throw new IllegalArgumentException("device was not registered");
|
}
|
// Remove issued listener from the registered device
|
sMetadataListeners.get(device).removeIf((pair) -> (pair.first.equals(listener)));
|
|
if (sMetadataListeners.get(device).isEmpty()) {
|
// Unregister to Bluetooth service if all listeners are removed from
|
// the registered device
|
sMetadataListeners.remove(device);
|
final IBluetooth service = mService;
|
if (service == null) {
|
// Bluetooth is OFF, do nothing to Bluetooth service.
|
return true;
|
}
|
try {
|
return service.unregisterMetadataListener(device);
|
} catch (RemoteException e) {
|
Log.e(TAG, "unregisterMetadataListener fail", e);
|
return false;
|
}
|
}
|
}
|
return true;
|
}
|
|
/**
|
* This interface is used to implement {@link BluetoothAdapter} metadata listener.
|
* @hide
|
*/
|
@SystemApi
|
public interface OnMetadataChangedListener {
|
/**
|
* Callback triggered if the metadata of {@link BluetoothDevice} registered in
|
* {@link #addOnMetadataChangedListener}.
|
*
|
* @param device changed {@link BluetoothDevice}.
|
* @param key changed metadata key, one of BluetoothDevice.METADATA_*.
|
* @param value the new value of metadata as byte array.
|
*/
|
void onMetadataChanged(@NonNull BluetoothDevice device, int key,
|
@Nullable byte[] value);
|
}
|
}
|
