1 /* 2 * Copyright (C) 2011 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.bluetooth; 18 19 import android.content.Context; 20 import android.util.Log; 21 22 /** 23 * LocalBluetoothManager provides a simplified interface on top of a subset of 24 * the Bluetooth API. Note that {@link #getInstance} will return null 25 * if there is no Bluetooth adapter on this device, and callers must be 26 * prepared to handle this case. 27 */ 28 public final class LocalBluetoothManager { 29 private static final String TAG = "LocalBluetoothManager"; 30 31 /** Singleton instance. */ 32 private static LocalBluetoothManager sInstance; 33 34 private final Context mContext; 35 36 /** If a BT-related activity is in the foreground, this will be it. */ 37 private Context mForegroundActivity; 38 39 private BluetoothDiscoverableEnabler mDiscoverableEnabler; 40 41 private final LocalBluetoothAdapter mLocalAdapter; 42 43 private final CachedBluetoothDeviceManager mCachedDeviceManager; 44 45 /** The Bluetooth profile manager. */ 46 private final LocalBluetoothProfileManager mProfileManager; 47 48 /** The broadcast receiver event manager. */ 49 private final BluetoothEventManager mEventManager; 50 getInstance(Context context)51 public static synchronized LocalBluetoothManager getInstance(Context context) { 52 if (sInstance == null) { 53 LocalBluetoothAdapter adapter = LocalBluetoothAdapter.getInstance(); 54 if (adapter == null) { 55 return null; 56 } 57 // This will be around as long as this process is 58 Context appContext = context.getApplicationContext(); 59 sInstance = new LocalBluetoothManager(adapter, appContext); 60 } 61 62 return sInstance; 63 } 64 setDiscoverableEnabler(BluetoothDiscoverableEnabler discoverableEnabler)65 public void setDiscoverableEnabler(BluetoothDiscoverableEnabler discoverableEnabler) { 66 mDiscoverableEnabler = discoverableEnabler; 67 } 68 getDiscoverableEnabler()69 public BluetoothDiscoverableEnabler getDiscoverableEnabler() { 70 return mDiscoverableEnabler; 71 } 72 LocalBluetoothManager(LocalBluetoothAdapter adapter, Context context)73 private LocalBluetoothManager(LocalBluetoothAdapter adapter, Context context) { 74 mContext = context; 75 mLocalAdapter = adapter; 76 77 mCachedDeviceManager = new CachedBluetoothDeviceManager(context); 78 mEventManager = new BluetoothEventManager(mLocalAdapter, 79 mCachedDeviceManager, context); 80 mProfileManager = new LocalBluetoothProfileManager(context, 81 mLocalAdapter, mCachedDeviceManager, mEventManager); 82 } 83 getBluetoothAdapter()84 public LocalBluetoothAdapter getBluetoothAdapter() { 85 return mLocalAdapter; 86 } 87 getContext()88 public Context getContext() { 89 return mContext; 90 } 91 getForegroundActivity()92 public Context getForegroundActivity() { 93 return mForegroundActivity; 94 } 95 isForegroundActivity()96 boolean isForegroundActivity() { 97 return mForegroundActivity != null; 98 } 99 setForegroundActivity(Context context)100 synchronized void setForegroundActivity(Context context) { 101 if (context != null) { 102 Log.d(TAG, "setting foreground activity to non-null context"); 103 mForegroundActivity = context; 104 } else { 105 if (mForegroundActivity != null) { 106 Log.d(TAG, "setting foreground activity to null"); 107 mForegroundActivity = null; 108 } 109 } 110 } 111 getCachedDeviceManager()112 CachedBluetoothDeviceManager getCachedDeviceManager() { 113 return mCachedDeviceManager; 114 } 115 getEventManager()116 BluetoothEventManager getEventManager() { 117 return mEventManager; 118 } 119 getProfileManager()120 LocalBluetoothProfileManager getProfileManager() { 121 return mProfileManager; 122 } 123 } 124