/*
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* Copyright (C) 2008 The Android Open Source Project
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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.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.content.ComponentName;
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import android.content.Context;
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import android.os.Binder;
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import android.os.Handler;
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import android.os.IBinder;
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import android.os.Looper;
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import android.os.Message;
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import android.os.RemoteException;
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import android.util.Log;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Public API for controlling the Bluetooth Headset Service. This includes both
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* Bluetooth Headset and Handsfree (v1.5) profiles.
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*
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* <p>BluetoothHeadset is a proxy object for controlling the Bluetooth Headset
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* Service via IPC.
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*
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* <p> Use {@link BluetoothAdapter#getProfileProxy} to get
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* the BluetoothHeadset proxy object. Use
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* {@link BluetoothAdapter#closeProfileProxy} to close the service connection.
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*
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* <p> Android only supports one connected Bluetooth Headset at a time.
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* Each method is protected with its appropriate permission.
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*/
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public final class BluetoothHeadset implements BluetoothProfile {
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private static final String TAG = "BluetoothHeadset";
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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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* Intent used to broadcast the change in connection state of the Headset
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* profile.
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*
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* <p>This intent will have 3 extras:
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* <ul>
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* <li> {@link #EXTRA_STATE} - The current state of the profile. </li>
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* <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile. </li>
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* <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li>
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* </ul>
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* <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of
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* {@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} permission to
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* receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
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public static final String ACTION_CONNECTION_STATE_CHANGED =
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"android.bluetooth.headset.profile.action.CONNECTION_STATE_CHANGED";
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/**
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* Intent used to broadcast the change in the Audio Connection state of the
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* A2DP profile.
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*
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* <p>This intent will have 3 extras:
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* <ul>
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* <li> {@link #EXTRA_STATE} - The current state of the profile. </li>
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* <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile. </li>
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* <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li>
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* </ul>
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* <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of
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* {@link #STATE_AUDIO_CONNECTED}, {@link #STATE_AUDIO_DISCONNECTED},
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*
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission
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* to receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
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public static final String ACTION_AUDIO_STATE_CHANGED =
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"android.bluetooth.headset.profile.action.AUDIO_STATE_CHANGED";
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/**
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* Intent used to broadcast the selection of a connected device as active.
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*
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* <p>This intent will have one extra:
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* <ul>
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* <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. It can
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* be null if no device is active. </li>
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* </ul>
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*
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to
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* receive.
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*
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* @hide
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
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@UnsupportedAppUsage
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public static final String ACTION_ACTIVE_DEVICE_CHANGED =
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"android.bluetooth.headset.profile.action.ACTIVE_DEVICE_CHANGED";
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/**
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* Intent used to broadcast that the headset has posted a
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* vendor-specific event.
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*
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* <p>This intent will have 4 extras and 1 category.
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* <ul>
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* <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote Bluetooth Device
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* </li>
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* <li> {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD} - The vendor
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* specific command </li>
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* <li> {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE} - The AT
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* command type which can be one of {@link #AT_CMD_TYPE_READ},
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* {@link #AT_CMD_TYPE_TEST}, or {@link #AT_CMD_TYPE_SET},
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* {@link #AT_CMD_TYPE_BASIC},{@link #AT_CMD_TYPE_ACTION}. </li>
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* <li> {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_ARGS} - Command
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* arguments. </li>
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* </ul>
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*
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* <p> The category is the Company ID of the vendor defining the
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* vendor-specific command. {@link BluetoothAssignedNumbers}
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*
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* For example, for Plantronics specific events
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* Category will be {@link #VENDOR_SPECIFIC_HEADSET_EVENT_COMPANY_ID_CATEGORY}.55
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*
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* <p> For example, an AT+XEVENT=foo,3 will get translated into
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* <ul>
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* <li> EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD = +XEVENT </li>
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* <li> EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE = AT_CMD_TYPE_SET </li>
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* <li> EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_ARGS = foo, 3 </li>
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* </ul>
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission
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* to receive.
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*/
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@SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
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public static final String ACTION_VENDOR_SPECIFIC_HEADSET_EVENT =
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"android.bluetooth.headset.action.VENDOR_SPECIFIC_HEADSET_EVENT";
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/**
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* A String extra field in {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT}
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* intents that contains the name of the vendor-specific command.
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*/
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public static final String EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD =
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"android.bluetooth.headset.extra.VENDOR_SPECIFIC_HEADSET_EVENT_CMD";
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/**
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* An int extra field in {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT}
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* intents that contains the AT command type of the vendor-specific command.
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*/
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public static final String EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE =
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"android.bluetooth.headset.extra.VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE";
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/**
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* AT command type READ used with
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* {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE}
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* For example, AT+VGM?. There are no arguments for this command type.
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*/
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public static final int AT_CMD_TYPE_READ = 0;
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/**
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* AT command type TEST used with
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* {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE}
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* For example, AT+VGM=?. There are no arguments for this command type.
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*/
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public static final int AT_CMD_TYPE_TEST = 1;
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/**
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* AT command type SET used with
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* {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE}
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* For example, AT+VGM=<args>.
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*/
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public static final int AT_CMD_TYPE_SET = 2;
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/**
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* AT command type BASIC used with
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* {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE}
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* For example, ATD. Single character commands and everything following the
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* character are arguments.
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*/
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public static final int AT_CMD_TYPE_BASIC = 3;
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/**
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* AT command type ACTION used with
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* {@link #EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_CMD_TYPE}
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* For example, AT+CHUP. There are no arguments for action commands.
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*/
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public static final int AT_CMD_TYPE_ACTION = 4;
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/**
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* A Parcelable String array extra field in
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* {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT} intents that contains
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* the arguments to the vendor-specific command.
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*/
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public static final String EXTRA_VENDOR_SPECIFIC_HEADSET_EVENT_ARGS =
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"android.bluetooth.headset.extra.VENDOR_SPECIFIC_HEADSET_EVENT_ARGS";
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/**
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* The intent category to be used with {@link #ACTION_VENDOR_SPECIFIC_HEADSET_EVENT}
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* for the companyId
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*/
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public static final String VENDOR_SPECIFIC_HEADSET_EVENT_COMPANY_ID_CATEGORY =
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"android.bluetooth.headset.intent.category.companyid";
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/**
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* A vendor-specific command for unsolicited result code.
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*/
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public static final String VENDOR_RESULT_CODE_COMMAND_ANDROID = "+ANDROID";
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/**
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* A vendor-specific AT command
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*
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* @hide
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*/
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public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XAPL = "+XAPL";
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/**
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* A vendor-specific AT command
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*
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* @hide
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*/
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public static final String VENDOR_SPECIFIC_HEADSET_EVENT_IPHONEACCEV = "+IPHONEACCEV";
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/**
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* Battery level indicator associated with
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* {@link #VENDOR_SPECIFIC_HEADSET_EVENT_IPHONEACCEV}
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*
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* @hide
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*/
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public static final int VENDOR_SPECIFIC_HEADSET_EVENT_IPHONEACCEV_BATTERY_LEVEL = 1;
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/**
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* A vendor-specific AT command
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*
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* @hide
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*/
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public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT = "+XEVENT";
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/**
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* Battery level indicator associated with {@link #VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT}
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*
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* @hide
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*/
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public static final String VENDOR_SPECIFIC_HEADSET_EVENT_XEVENT_BATTERY_LEVEL = "BATTERY";
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/**
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* Headset state when SCO audio is not connected.
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* This state can be one of
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* {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of
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* {@link #ACTION_AUDIO_STATE_CHANGED} intent.
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*/
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public static final int STATE_AUDIO_DISCONNECTED = 10;
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/**
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* Headset state when SCO audio is connecting.
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* This state can be one of
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* {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of
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* {@link #ACTION_AUDIO_STATE_CHANGED} intent.
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*/
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public static final int STATE_AUDIO_CONNECTING = 11;
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/**
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* Headset state when SCO audio is connected.
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* This state can be one of
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* {@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} of
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* {@link #ACTION_AUDIO_STATE_CHANGED} intent.
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*/
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/**
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* Intent used to broadcast the headset's indicator status
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*
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* <p>This intent will have 3 extras:
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* <ul>
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* <li> {@link #EXTRA_HF_INDICATORS_IND_ID} - The Assigned number of headset Indicator which
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* is supported by the headset ( as indicated by AT+BIND command in the SLC
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* sequence) or whose value is changed (indicated by AT+BIEV command) </li>
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* <li> {@link #EXTRA_HF_INDICATORS_IND_VALUE} - Updated value of headset indicator. </li>
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* <li> {@link BluetoothDevice#EXTRA_DEVICE} - Remote device. </li>
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* </ul>
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* <p>{@link #EXTRA_HF_INDICATORS_IND_ID} is defined by Bluetooth SIG and each of the indicators
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* are given an assigned number. Below shows the assigned number of Indicator added so far
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* - Enhanced Safety - 1, Valid Values: 0 - Disabled, 1 - Enabled
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* - Battery Level - 2, Valid Values: 0~100 - Remaining level of Battery
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to receive.
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*
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* @hide
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*/
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public static final String ACTION_HF_INDICATORS_VALUE_CHANGED =
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"android.bluetooth.headset.action.HF_INDICATORS_VALUE_CHANGED";
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/**
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* A int extra field in {@link #ACTION_HF_INDICATORS_VALUE_CHANGED}
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* intents that contains the assigned number of the headset indicator as defined by
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* Bluetooth SIG that is being sent. Value range is 0-65535 as defined in HFP 1.7
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*
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* @hide
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*/
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public static final String EXTRA_HF_INDICATORS_IND_ID =
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"android.bluetooth.headset.extra.HF_INDICATORS_IND_ID";
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/**
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* A int extra field in {@link #ACTION_HF_INDICATORS_VALUE_CHANGED}
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* intents that contains the value of the Headset indicator that is being sent.
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*
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* @hide
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*/
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public static final String EXTRA_HF_INDICATORS_IND_VALUE =
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"android.bluetooth.headset.extra.HF_INDICATORS_IND_VALUE";
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public static final int STATE_AUDIO_CONNECTED = 12;
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private static final int MESSAGE_HEADSET_SERVICE_CONNECTED = 100;
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private static final int MESSAGE_HEADSET_SERVICE_DISCONNECTED = 101;
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private Context mContext;
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private ServiceListener mServiceListener;
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private volatile IBluetoothHeadset mService;
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private BluetoothAdapter mAdapter;
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private final IBluetoothStateChangeCallback mBluetoothStateChangeCallback =
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new IBluetoothStateChangeCallback.Stub() {
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public void onBluetoothStateChange(boolean up) {
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if (DBG) Log.d(TAG, "onBluetoothStateChange: up=" + up);
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if (!up) {
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doUnbind();
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} else {
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doBind();
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}
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}
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};
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/**
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* Create a BluetoothHeadset proxy object.
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*/
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/*package*/ BluetoothHeadset(Context context, ServiceListener l) {
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mContext = context;
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mServiceListener = l;
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mAdapter = BluetoothAdapter.getDefaultAdapter();
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IBluetoothManager mgr = mAdapter.getBluetoothManager();
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if (mgr != null) {
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try {
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mgr.registerStateChangeCallback(mBluetoothStateChangeCallback);
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} catch (RemoteException e) {
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Log.e(TAG, "", e);
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}
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}
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doBind();
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}
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private boolean doBind() {
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synchronized (mConnection) {
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if (mService == null) {
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if (VDBG) Log.d(TAG, "Binding service...");
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try {
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return mAdapter.getBluetoothManager().bindBluetoothProfileService(
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BluetoothProfile.HEADSET, mConnection);
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} catch (RemoteException e) {
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Log.e(TAG, "Unable to bind HeadsetService", e);
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}
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}
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}
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return false;
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}
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private void doUnbind() {
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synchronized (mConnection) {
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if (mService != null) {
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if (VDBG) Log.d(TAG, "Unbinding service...");
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try {
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mAdapter.getBluetoothManager().unbindBluetoothProfileService(
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BluetoothProfile.HEADSET, mConnection);
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} catch (RemoteException e) {
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Log.e(TAG, "Unable to unbind HeadsetService", e);
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} finally {
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mService = null;
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}
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}
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}
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}
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/**
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* Close the connection to the backing service.
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* Other public functions of BluetoothHeadset will return default error
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* results once close() has been called. Multiple invocations of close()
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* are ok.
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*/
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@UnsupportedAppUsage
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/*package*/ void close() {
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if (VDBG) log("close()");
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IBluetoothManager mgr = mAdapter.getBluetoothManager();
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if (mgr != null) {
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try {
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mgr.unregisterStateChangeCallback(mBluetoothStateChangeCallback);
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} catch (RemoteException re) {
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Log.e(TAG, "", re);
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}
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}
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mServiceListener = null;
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doUnbind();
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}
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/**
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* Initiate connection to a profile of the remote bluetooth device.
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*
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* <p> Currently, the system supports only 1 connection to the
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* headset/handsfree profile. The API will automatically disconnect connected
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* devices before connecting.
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*
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* <p> This API returns false in scenarios like the profile on the
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* device is already connected or Bluetooth is not turned on.
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* When this API returns true, it is guaranteed that
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* connection state intent for the profile will be broadcasted with
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* the state. Users can get the connection state of the profile
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* from this intent.
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*
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}
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* permission.
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*
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* @param device Remote Bluetooth Device
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* @return false on immediate error, true otherwise
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* @hide
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*/
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@SystemApi
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@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN)
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public boolean connect(BluetoothDevice device) {
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if (DBG) log("connect(" + device + ")");
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final IBluetoothHeadset service = mService;
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if (service != null && isEnabled() && isValidDevice(device)) {
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try {
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return service.connect(device);
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} catch (RemoteException e) {
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Log.e(TAG, Log.getStackTraceString(new Throwable()));
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return false;
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}
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}
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if (service == null) Log.w(TAG, "Proxy not attached to service");
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return false;
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}
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/**
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* Initiate disconnection from a profile
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*
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* <p> This API will return false in scenarios like the profile on the
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* Bluetooth device is not in connected state etc. When this API returns,
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* true, it is guaranteed that the connection state change
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* intent will be broadcasted with the state. Users can get the
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* disconnection state of the profile from this intent.
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*
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* <p> If the disconnection is initiated by a remote device, the state
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* will transition from {@link #STATE_CONNECTED} to
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* {@link #STATE_DISCONNECTED}. If the disconnect is initiated by the
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* host (local) device the state will transition from
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* {@link #STATE_CONNECTED} to state {@link #STATE_DISCONNECTING} to
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* state {@link #STATE_DISCONNECTED}. The transition to
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* {@link #STATE_DISCONNECTING} can be used to distinguish between the
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* two scenarios.
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*
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}
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* permission.
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*
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* @param device Remote Bluetooth Device
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* @return false on immediate error, true otherwise
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* @hide
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*/
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@SystemApi
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@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN)
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public boolean disconnect(BluetoothDevice device) {
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if (DBG) log("disconnect(" + device + ")");
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final IBluetoothHeadset service = mService;
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if (service != null && isEnabled() && isValidDevice(device)) {
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try {
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return service.disconnect(device);
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} catch (RemoteException e) {
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Log.e(TAG, Log.getStackTraceString(new Throwable()));
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return false;
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}
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}
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if (service == null) Log.w(TAG, "Proxy not attached to service");
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public List<BluetoothDevice> getConnectedDevices() {
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if (VDBG) log("getConnectedDevices()");
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final IBluetoothHeadset service = mService;
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if (service != null && isEnabled()) {
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try {
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return service.getConnectedDevices();
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} catch (RemoteException e) {
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Log.e(TAG, Log.getStackTraceString(new Throwable()));
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return new ArrayList<BluetoothDevice>();
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}
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}
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if (service == null) Log.w(TAG, "Proxy not attached to service");
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return new ArrayList<BluetoothDevice>();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) {
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if (VDBG) log("getDevicesMatchingStates()");
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final IBluetoothHeadset service = mService;
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if (service != null && isEnabled()) {
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try {
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return service.getDevicesMatchingConnectionStates(states);
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} catch (RemoteException e) {
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Log.e(TAG, Log.getStackTraceString(new Throwable()));
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return new ArrayList<BluetoothDevice>();
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}
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}
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if (service == null) Log.w(TAG, "Proxy not attached to service");
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return new ArrayList<BluetoothDevice>();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int getConnectionState(BluetoothDevice device) {
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if (VDBG) log("getConnectionState(" + device + ")");
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final IBluetoothHeadset service = mService;
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if (service != null && isEnabled() && isValidDevice(device)) {
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try {
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return service.getConnectionState(device);
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} catch (RemoteException e) {
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Log.e(TAG, Log.getStackTraceString(new Throwable()));
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return BluetoothProfile.STATE_DISCONNECTED;
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}
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}
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if (service == null) Log.w(TAG, "Proxy not attached to service");
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return BluetoothProfile.STATE_DISCONNECTED;
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}
|
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/**
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* Set priority of the profile
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*
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* <p> The device should already be paired.
|
* Priority can be one of {@link BluetoothProfile#PRIORITY_ON} or
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* {@link BluetoothProfile#PRIORITY_OFF},
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*
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* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}
|
* permission.
|
*
|
* @param device Paired bluetooth device
|
* @param priority
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* @return true if priority is set, false on error
|
* @hide
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*/
|
@SystemApi
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@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN)
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public boolean setPriority(BluetoothDevice device, int priority) {
|
if (DBG) log("setPriority(" + device + ", " + priority + ")");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled() && isValidDevice(device)) {
|
if (priority != BluetoothProfile.PRIORITY_OFF
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&& priority != BluetoothProfile.PRIORITY_ON) {
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return false;
|
}
|
try {
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return service.setPriority(device, priority);
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
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return false;
|
}
|
}
|
if (service == null) Log.w(TAG, "Proxy not attached to service");
|
return false;
|
}
|
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/**
|
* Get the priority of the profile.
|
*
|
* <p> The priority can be any of:
|
* {@link #PRIORITY_AUTO_CONNECT}, {@link #PRIORITY_OFF},
|
* {@link #PRIORITY_ON}, {@link #PRIORITY_UNDEFINED}
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission.
|
*
|
* @param device Bluetooth device
|
* @return priority of the device
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public int getPriority(BluetoothDevice device) {
|
if (VDBG) log("getPriority(" + device + ")");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled() && isValidDevice(device)) {
|
try {
|
return service.getPriority(device);
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
return PRIORITY_OFF;
|
}
|
}
|
if (service == null) Log.w(TAG, "Proxy not attached to service");
|
return PRIORITY_OFF;
|
}
|
|
/**
|
* Start Bluetooth voice recognition. This methods sends the voice
|
* recognition AT command to the headset and establishes the
|
* audio connection.
|
*
|
* <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}.
|
* If this function returns true, this intent will be broadcasted with
|
* {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_CONNECTING}.
|
*
|
* <p> {@link #EXTRA_STATE} will transition from
|
* {@link #STATE_AUDIO_CONNECTING} to {@link #STATE_AUDIO_CONNECTED} when
|
* audio connection is established and to {@link #STATE_AUDIO_DISCONNECTED}
|
* in case of failure to establish the audio connection.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission.
|
*
|
* @param device Bluetooth headset
|
* @return false if there is no headset connected, or the connected headset doesn't support
|
* voice recognition, or voice recognition is already started, or audio channel is occupied,
|
* or on error, true otherwise
|
*/
|
public boolean startVoiceRecognition(BluetoothDevice device) {
|
if (DBG) log("startVoiceRecognition()");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled() && isValidDevice(device)) {
|
try {
|
return service.startVoiceRecognition(device);
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) Log.w(TAG, "Proxy not attached to service");
|
return false;
|
}
|
|
/**
|
* Stop Bluetooth Voice Recognition mode, and shut down the
|
* Bluetooth audio path.
|
*
|
* <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}.
|
* If this function returns true, this intent will be broadcasted with
|
* {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_DISCONNECTED}.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission.
|
*
|
* @param device Bluetooth headset
|
* @return false if there is no headset connected, or voice recognition has not started,
|
* or voice recognition has ended on this headset, or on error, true otherwise
|
*/
|
public boolean stopVoiceRecognition(BluetoothDevice device) {
|
if (DBG) log("stopVoiceRecognition()");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled() && isValidDevice(device)) {
|
try {
|
return service.stopVoiceRecognition(device);
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) Log.w(TAG, "Proxy not attached to service");
|
return false;
|
}
|
|
/**
|
* Check if Bluetooth SCO audio is connected.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission.
|
*
|
* @param device Bluetooth headset
|
* @return true if SCO is connected, false otherwise or on error
|
*/
|
public boolean isAudioConnected(BluetoothDevice device) {
|
if (VDBG) log("isAudioConnected()");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled() && isValidDevice(device)) {
|
try {
|
return service.isAudioConnected(device);
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) Log.w(TAG, "Proxy not attached to service");
|
return false;
|
}
|
|
/**
|
* Indicates if current platform supports voice dialing over bluetooth SCO.
|
*
|
* @return true if voice dialing over bluetooth is supported, false otherwise.
|
* @hide
|
*/
|
public static boolean isBluetoothVoiceDialingEnabled(Context context) {
|
return context.getResources().getBoolean(
|
com.android.internal.R.bool.config_bluetooth_sco_off_call);
|
}
|
|
/**
|
* Get the current audio state of the Headset.
|
* Note: This is an internal function and shouldn't be exposed
|
*
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public int getAudioState(BluetoothDevice device) {
|
if (VDBG) log("getAudioState");
|
final IBluetoothHeadset service = mService;
|
if (service != null && !isDisabled()) {
|
try {
|
return service.getAudioState(device);
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
return BluetoothHeadset.STATE_AUDIO_DISCONNECTED;
|
}
|
|
/**
|
* Sets whether audio routing is allowed. When set to {@code false}, the AG will not route any
|
* audio to the HF unless explicitly told to.
|
* This method should be used in cases where the SCO channel is shared between multiple profiles
|
* and must be delegated by a source knowledgeable
|
* Note: This is an internal function and shouldn't be exposed
|
*
|
* @param allowed {@code true} if the profile can reroute audio, {@code false} otherwise.
|
* @hide
|
*/
|
public void setAudioRouteAllowed(boolean allowed) {
|
if (VDBG) log("setAudioRouteAllowed");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
service.setAudioRouteAllowed(allowed);
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
|
/**
|
* Returns whether audio routing is allowed. see {@link #setAudioRouteAllowed(boolean)}.
|
* Note: This is an internal function and shouldn't be exposed
|
*
|
* @hide
|
*/
|
public boolean getAudioRouteAllowed() {
|
if (VDBG) log("getAudioRouteAllowed");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.getAudioRouteAllowed();
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
return false;
|
}
|
|
/**
|
* Force SCO audio to be opened regardless any other restrictions
|
*
|
* @param forced Whether or not SCO audio connection should be forced: True to force SCO audio
|
* False to use SCO audio in normal manner
|
* @hide
|
*/
|
public void setForceScoAudio(boolean forced) {
|
if (VDBG) log("setForceScoAudio " + String.valueOf(forced));
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
service.setForceScoAudio(forced);
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
|
/**
|
* Check if at least one headset's SCO audio is connected or connecting
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission.
|
*
|
* @return true if at least one device's SCO audio is connected or connecting, false otherwise
|
* or on error
|
* @hide
|
*/
|
public boolean isAudioOn() {
|
if (VDBG) log("isAudioOn()");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.isAudioOn();
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) Log.w(TAG, "Proxy not attached to service");
|
return false;
|
|
}
|
|
/**
|
* Initiates a connection of headset audio to the current active device
|
*
|
* <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}.
|
* If this function returns true, this intent will be broadcasted with
|
* {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_CONNECTING}.
|
*
|
* <p> {@link #EXTRA_STATE} will transition from
|
* {@link #STATE_AUDIO_CONNECTING} to {@link #STATE_AUDIO_CONNECTED} when
|
* audio connection is established and to {@link #STATE_AUDIO_DISCONNECTED}
|
* in case of failure to establish the audio connection.
|
*
|
* Note that this intent will not be sent if {@link BluetoothHeadset#isAudioOn()} is true
|
* before calling this method
|
*
|
* @return false if there was some error such as there is no active headset
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public boolean connectAudio() {
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.connectAudio();
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
return false;
|
}
|
|
/**
|
* Initiates a disconnection of HFP SCO audio.
|
* Tear down voice recognition or virtual voice call if any.
|
*
|
* <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}.
|
* If this function returns true, this intent will be broadcasted with
|
* {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_DISCONNECTED}.
|
*
|
* @return false if audio is not connected, or on error, true otherwise
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public boolean disconnectAudio() {
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.disconnectAudio();
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
return false;
|
}
|
|
/**
|
* Initiates a SCO channel connection as a virtual voice call to the current active device
|
* Active handsfree device will be notified of incoming call and connected call.
|
*
|
* <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}.
|
* If this function returns true, this intent will be broadcasted with
|
* {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_CONNECTING}.
|
*
|
* <p> {@link #EXTRA_STATE} will transition from
|
* {@link #STATE_AUDIO_CONNECTING} to {@link #STATE_AUDIO_CONNECTED} when
|
* audio connection is established and to {@link #STATE_AUDIO_DISCONNECTED}
|
* in case of failure to establish the audio connection.
|
*
|
* @return true if successful, false if one of the following case applies
|
* - SCO audio is not idle (connecting or connected)
|
* - virtual call has already started
|
* - there is no active device
|
* - a Telecom managed call is going on
|
* - binder is dead or Bluetooth is disabled or other error
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
@UnsupportedAppUsage
|
public boolean startScoUsingVirtualVoiceCall() {
|
if (DBG) log("startScoUsingVirtualVoiceCall()");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.startScoUsingVirtualVoiceCall();
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
return false;
|
}
|
|
/**
|
* Terminates an ongoing SCO connection and the associated virtual call.
|
*
|
* <p> Users can listen to {@link #ACTION_AUDIO_STATE_CHANGED}.
|
* If this function returns true, this intent will be broadcasted with
|
* {@link #EXTRA_STATE} set to {@link #STATE_AUDIO_DISCONNECTED}.
|
*
|
* @return true if successful, false if one of the following case applies
|
* - virtual voice call is not started or has ended
|
* - binder is dead or Bluetooth is disabled or other error
|
* @hide
|
*/
|
@RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN)
|
@UnsupportedAppUsage
|
public boolean stopScoUsingVirtualVoiceCall() {
|
if (DBG) log("stopScoUsingVirtualVoiceCall()");
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.stopScoUsingVirtualVoiceCall();
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
return false;
|
}
|
|
/**
|
* Notify Headset of phone state change.
|
* This is a backdoor for phone app to call BluetoothHeadset since
|
* there is currently not a good way to get precise call state change outside
|
* of phone app.
|
*
|
* @hide
|
*/
|
@UnsupportedAppUsage
|
public void phoneStateChanged(int numActive, int numHeld, int callState, String number,
|
int type, String name) {
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
service.phoneStateChanged(numActive, numHeld, callState, number, type, name);
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
|
/**
|
* Send Headset of CLCC response
|
*
|
* @hide
|
*/
|
public void clccResponse(int index, int direction, int status, int mode, boolean mpty,
|
String number, int type) {
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
service.clccResponse(index, direction, status, mode, mpty, number, type);
|
} catch (RemoteException e) {
|
Log.e(TAG, e.toString());
|
}
|
} else {
|
Log.w(TAG, "Proxy not attached to service");
|
if (DBG) Log.d(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
|
/**
|
* Sends a vendor-specific unsolicited result code to the headset.
|
*
|
* <p>The actual string to be sent is <code>command + ": " + arg</code>. For example, if {@code
|
* command} is {@link #VENDOR_RESULT_CODE_COMMAND_ANDROID} and {@code arg} is {@code "0"}, the
|
* string <code>"+ANDROID: 0"</code> will be sent.
|
*
|
* <p>Currently only {@link #VENDOR_RESULT_CODE_COMMAND_ANDROID} is allowed as {@code command}.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission.
|
*
|
* @param device Bluetooth headset.
|
* @param command A vendor-specific command.
|
* @param arg The argument that will be attached to the command.
|
* @return {@code false} if there is no headset connected, or if the command is not an allowed
|
* vendor-specific unsolicited result code, or on error. {@code true} otherwise.
|
* @throws IllegalArgumentException if {@code command} is {@code null}.
|
*/
|
public boolean sendVendorSpecificResultCode(BluetoothDevice device, String command,
|
String arg) {
|
if (DBG) {
|
log("sendVendorSpecificResultCode()");
|
}
|
if (command == null) {
|
throw new IllegalArgumentException("command is null");
|
}
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled() && isValidDevice(device)) {
|
try {
|
return service.sendVendorSpecificResultCode(device, command, arg);
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) {
|
Log.w(TAG, "Proxy not attached to service");
|
}
|
return false;
|
}
|
|
/**
|
* Select a connected device as active.
|
*
|
* The active device selection is per profile. An active device's
|
* purpose is profile-specific. For example, in HFP and HSP profiles,
|
* it is the device used for phone call audio. If a remote device is not
|
* connected, it cannot be selected as active.
|
*
|
* <p> This API returns false in scenarios like the profile on the
|
* device is not connected or Bluetooth is not turned on.
|
* When this API returns true, it is guaranteed that the
|
* {@link #ACTION_ACTIVE_DEVICE_CHANGED} intent will be broadcasted
|
* with the active device.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}
|
* permission.
|
*
|
* @param device Remote Bluetooth Device, could be null if phone call audio should not be
|
* streamed to a headset
|
* @return false on immediate error, true otherwise
|
* @hide
|
*/
|
@RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN)
|
@UnsupportedAppUsage
|
public boolean setActiveDevice(@Nullable BluetoothDevice device) {
|
if (DBG) {
|
Log.d(TAG, "setActiveDevice: " + device);
|
}
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled() && (device == null || isValidDevice(device))) {
|
try {
|
return service.setActiveDevice(device);
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) {
|
Log.w(TAG, "Proxy not attached to service");
|
}
|
return false;
|
}
|
|
/**
|
* Get the connected device that is active.
|
*
|
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
|
* permission.
|
*
|
* @return the connected device that is active or null if no device
|
* is active.
|
* @hide
|
*/
|
@RequiresPermission(android.Manifest.permission.BLUETOOTH)
|
@UnsupportedAppUsage
|
public BluetoothDevice getActiveDevice() {
|
if (VDBG) {
|
Log.d(TAG, "getActiveDevice");
|
}
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.getActiveDevice();
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) {
|
Log.w(TAG, "Proxy not attached to service");
|
}
|
return null;
|
}
|
|
/**
|
* Check if in-band ringing is currently enabled. In-band ringing could be disabled during an
|
* active connection.
|
*
|
* @return true if in-band ringing is enabled, false if in-band ringing is disabled
|
* @hide
|
*/
|
@RequiresPermission(android.Manifest.permission.BLUETOOTH)
|
public boolean isInbandRingingEnabled() {
|
if (DBG) {
|
log("isInbandRingingEnabled()");
|
}
|
final IBluetoothHeadset service = mService;
|
if (service != null && isEnabled()) {
|
try {
|
return service.isInbandRingingEnabled();
|
} catch (RemoteException e) {
|
Log.e(TAG, Log.getStackTraceString(new Throwable()));
|
}
|
}
|
if (service == null) {
|
Log.w(TAG, "Proxy not attached to service");
|
}
|
return false;
|
}
|
|
/**
|
* Check if in-band ringing is supported for this platform.
|
*
|
* @return true if in-band ringing is supported, false if in-band ringing is not supported
|
* @hide
|
*/
|
public static boolean isInbandRingingSupported(Context context) {
|
return context.getResources().getBoolean(
|
com.android.internal.R.bool.config_bluetooth_hfp_inband_ringing_support);
|
}
|
|
private final IBluetoothProfileServiceConnection mConnection =
|
new IBluetoothProfileServiceConnection.Stub() {
|
@Override
|
public void onServiceConnected(ComponentName className, IBinder service) {
|
if (DBG) Log.d(TAG, "Proxy object connected");
|
mService = IBluetoothHeadset.Stub.asInterface(Binder.allowBlocking(service));
|
mHandler.sendMessage(mHandler.obtainMessage(
|
MESSAGE_HEADSET_SERVICE_CONNECTED));
|
}
|
|
@Override
|
public void onServiceDisconnected(ComponentName className) {
|
if (DBG) Log.d(TAG, "Proxy object disconnected");
|
doUnbind();
|
mHandler.sendMessage(mHandler.obtainMessage(
|
MESSAGE_HEADSET_SERVICE_DISCONNECTED));
|
}
|
};
|
|
@UnsupportedAppUsage
|
private boolean isEnabled() {
|
return mAdapter.getState() == BluetoothAdapter.STATE_ON;
|
}
|
|
private boolean isDisabled() {
|
return mAdapter.getState() == BluetoothAdapter.STATE_OFF;
|
}
|
|
private static boolean isValidDevice(BluetoothDevice device) {
|
return device != null && BluetoothAdapter.checkBluetoothAddress(device.getAddress());
|
}
|
|
private static void log(String msg) {
|
Log.d(TAG, msg);
|
}
|
|
private final Handler mHandler = new Handler(Looper.getMainLooper()) {
|
@Override
|
public void handleMessage(Message msg) {
|
switch (msg.what) {
|
case MESSAGE_HEADSET_SERVICE_CONNECTED: {
|
if (mServiceListener != null) {
|
mServiceListener.onServiceConnected(BluetoothProfile.HEADSET,
|
BluetoothHeadset.this);
|
}
|
break;
|
}
|
case MESSAGE_HEADSET_SERVICE_DISCONNECTED: {
|
if (mServiceListener != null) {
|
mServiceListener.onServiceDisconnected(BluetoothProfile.HEADSET);
|
}
|
break;
|
}
|
}
|
}
|
};
|
}
|
