1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.notification; 18 19 import android.content.Context; 20 import android.database.ContentObserver; 21 import android.net.Uri; 22 import android.os.Handler; 23 import android.os.Looper; 24 import android.provider.Settings; 25 26 public class GlobalBubblePermissionObserverMixin extends ContentObserver { 27 28 public interface Listener { onGlobalBubblePermissionChanged()29 void onGlobalBubblePermissionChanged(); 30 } 31 32 private final Context mContext; 33 private final Listener mListener; 34 GlobalBubblePermissionObserverMixin(Context context, Listener listener)35 public GlobalBubblePermissionObserverMixin(Context context, Listener listener) { 36 super(new Handler(Looper.getMainLooper())); 37 mContext = context; 38 mListener = listener; 39 } 40 41 @Override onChange(boolean selfChange, Uri uri)42 public void onChange(boolean selfChange, Uri uri) { 43 if (mListener != null) { 44 mListener.onGlobalBubblePermissionChanged(); 45 } 46 } 47 onStart()48 public void onStart() { 49 mContext.getContentResolver().registerContentObserver( 50 Settings.Global.getUriFor( 51 Settings.Global.NOTIFICATION_BUBBLES), 52 false /* notifyForDescendants */, 53 this /* observer */); 54 } 55 onStop()56 public void onStop() { 57 mContext.getContentResolver().unregisterContentObserver(this /* observer */); 58 } 59 }