1 /* 2 * Copyright (C) 2014 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.tv.settings.accessories; 18 19 import android.bluetooth.BluetoothAdapter; 20 import android.bluetooth.BluetoothClass; 21 import android.bluetooth.BluetoothDevice; 22 import android.bluetooth.BluetoothProfile; 23 import android.content.Context; 24 import android.util.Log; 25 26 import androidx.annotation.DrawableRes; 27 import androidx.annotation.NonNull; 28 29 import com.android.settingslib.bluetooth.CachedBluetoothDevice; 30 import com.android.settingslib.bluetooth.LocalBluetoothManager; 31 import com.android.tv.settings.R; 32 33 import java.util.Arrays; 34 import java.util.Collections; 35 import java.util.List; 36 import java.util.concurrent.ExecutionException; 37 import java.util.concurrent.FutureTask; 38 39 /** Provide utilities for Remote & Accessories. */ 40 final class AccessoryUtils { 41 42 public static final String TAG = "AccessoryUtils"; 43 44 private static final int MINOR_MASK = 0b11111100; 45 // Includes any generic keyboards or pointers, and any joystick, game pad, or remote subtypes. 46 private static final int MINOR_REMOTE_MASK = 0b11001100; 47 private static List<String> sKnownDeviceLabels = null; 48 49 /** This allows OEM to easily override the main Service if desired. */ getBluetoothDeviceServiceClass()50 public static Class getBluetoothDeviceServiceClass() { 51 return BluetoothDevicesService.class; 52 } 53 getLocalBluetoothManager(Context context)54 public static LocalBluetoothManager getLocalBluetoothManager(Context context) { 55 final FutureTask<LocalBluetoothManager> localBluetoothManagerFutureTask = 56 new FutureTask<>( 57 // Avoid StrictMode ThreadPolicy violation 58 () -> LocalBluetoothManager.getInstance( 59 context, (c, bluetoothManager) -> { 60 }) 61 ); 62 try { 63 localBluetoothManagerFutureTask.run(); 64 return localBluetoothManagerFutureTask.get(); 65 } catch (InterruptedException | ExecutionException e) { 66 Log.w(TAG, "Error getting LocalBluetoothManager.", e); 67 return null; 68 } 69 } 70 getCachedBluetoothDevice( Context context, BluetoothDevice device)71 public static CachedBluetoothDevice getCachedBluetoothDevice( 72 Context context, BluetoothDevice device) { 73 LocalBluetoothManager localBluetoothManager = getLocalBluetoothManager(context); 74 if (localBluetoothManager != null) { 75 return localBluetoothManager.getCachedDeviceManager().findDevice(device); 76 } 77 return null; 78 } 79 getDefaultBluetoothAdapter()80 public static BluetoothAdapter getDefaultBluetoothAdapter() { 81 final FutureTask<BluetoothAdapter> defaultBluetoothAdapterFutureTask = 82 new FutureTask<>( 83 // Avoid StrictMode ThreadPolicy violation 84 BluetoothAdapter::getDefaultAdapter); 85 try { 86 defaultBluetoothAdapterFutureTask.run(); 87 return defaultBluetoothAdapterFutureTask.get(); 88 } catch (InterruptedException | ExecutionException e) { 89 Log.w(TAG, "Error getting default BluetoothAdapter.", e); 90 return null; 91 } 92 } 93 getLocalName(BluetoothDevice device)94 public static String getLocalName(BluetoothDevice device) { 95 if (device == null) { 96 return null; 97 } 98 return device.getAlias(); 99 } 100 isBluetoothEnabled()101 public static boolean isBluetoothEnabled() { 102 return getDefaultBluetoothAdapter() != null && getDefaultBluetoothAdapter().isEnabled(); 103 } 104 isConnected(BluetoothDevice device)105 public static boolean isConnected(BluetoothDevice device) { 106 if (device == null) { 107 return false; 108 } 109 return device.getBondState() == BluetoothDevice.BOND_BONDED && device.isConnected(); 110 } 111 isBonded(BluetoothDevice device)112 public static boolean isBonded(BluetoothDevice device) { 113 if (device == null) { 114 return false; 115 } 116 return device.getBondState() == BluetoothDevice.BOND_BONDED && !device.isConnected(); 117 } 118 isRemoteClass(BluetoothDevice device)119 public static boolean isRemoteClass(BluetoothDevice device) { 120 if (device == null || device.getBluetoothClass() == null) { 121 return false; 122 } 123 int major = device.getBluetoothClass().getMajorDeviceClass(); 124 int minor = device.getBluetoothClass().getDeviceClass() & MINOR_MASK; 125 return BluetoothClass.Device.Major.PERIPHERAL == major 126 && (minor & ~MINOR_REMOTE_MASK) == 0; 127 } 128 129 // For partner, this will be used to identify official device to omit it in the generic 130 // accessories section since the device's settings will be displayed in partner-implemented 131 // Slice. isKnownDevice(Context context, BluetoothDevice device)132 public static boolean isKnownDevice(Context context, BluetoothDevice device) { 133 if (device == null || device.getName() == null) { 134 return false; 135 } 136 if (sKnownDeviceLabels == null) { 137 if (context == null) { 138 return false; 139 } else { 140 sKnownDeviceLabels = 141 Collections.unmodifiableList( 142 Arrays.asList(context.getResources().getStringArray( 143 R.array.known_bluetooth_device_labels))); 144 } 145 } 146 147 final String name = device.getName().toLowerCase(); 148 for (String knownLabel : sKnownDeviceLabels) { 149 if (name.contains(knownLabel.toLowerCase())) { 150 return true; 151 } 152 } 153 return false; 154 } 155 AccessoryUtils()156 private AccessoryUtils() { 157 // do not allow instantiation 158 } 159 }