/*
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* Copyright (C) 2017 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 com.android.launcher3.util;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.database.ContentObserver;
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import android.os.Handler;
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import android.provider.Settings;
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/**
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* Utility class to listen for secure settings changes
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*/
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public class SecureSettingsObserver extends ContentObserver {
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/** Hidden field Settings.Secure.NOTIFICATION_BADGING */
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public static final String NOTIFICATION_BADGING = "notification_badging";
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private final ContentResolver mResolver;
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private final String mKeySetting;
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private final int mDefaultValue;
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private final OnChangeListener mOnChangeListener;
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public SecureSettingsObserver(ContentResolver resolver, OnChangeListener listener,
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String keySetting, int defaultValue) {
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super(new Handler());
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mResolver = resolver;
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mOnChangeListener = listener;
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mKeySetting = keySetting;
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mDefaultValue = defaultValue;
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}
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@Override
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public void onChange(boolean selfChange) {
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mOnChangeListener.onSettingsChanged(getValue());
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}
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public boolean getValue() {
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return Settings.Secure.getInt(mResolver, mKeySetting, mDefaultValue) == 1;
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}
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public void register() {
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mResolver.registerContentObserver(Settings.Secure.getUriFor(mKeySetting), false, this);
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}
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public ContentResolver getResolver() {
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return mResolver;
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}
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public void dispatchOnChange() {
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onChange(true);
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}
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public void unregister() {
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mResolver.unregisterContentObserver(this);
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}
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public interface OnChangeListener {
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void onSettingsChanged(boolean isEnabled);
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}
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public static SecureSettingsObserver newNotificationSettingsObserver(Context context,
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OnChangeListener listener) {
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return new SecureSettingsObserver(
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context.getContentResolver(), listener, NOTIFICATION_BADGING, 1);
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}
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}
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