Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 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 android.bluetooth; |
| 18 | |
| 19 | import android.content.ComponentName; |
| 20 | import android.content.Context; |
| 21 | import android.content.Intent; |
| 22 | import android.content.ServiceConnection; |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 23 | import android.media.MediaMetadata; |
| 24 | import android.media.session.PlaybackState; |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 25 | import android.os.IBinder; |
| 26 | import android.os.RemoteException; |
| 27 | import android.util.Log; |
| 28 | |
| 29 | import java.util.ArrayList; |
| 30 | import java.util.List; |
| 31 | |
| 32 | /** |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 33 | * This class provides the public APIs to control the Bluetooth AVRCP Controller. It currently |
| 34 | * supports player information, playback support and track metadata. |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 35 | * |
| 36 | *<p>BluetoothAvrcpController is a proxy object for controlling the Bluetooth AVRCP |
| 37 | * Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get |
| 38 | * the BluetoothAvrcpController proxy object. |
| 39 | * |
| 40 | * {@hide} |
| 41 | */ |
| 42 | public final class BluetoothAvrcpController implements BluetoothProfile { |
| 43 | private static final String TAG = "BluetoothAvrcpController"; |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 44 | private static final boolean DBG = false; |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 45 | private static final boolean VDBG = false; |
| 46 | |
| 47 | /** |
| 48 | * Intent used to broadcast the change in connection state of the AVRCP Controller |
| 49 | * profile. |
| 50 | * |
| 51 | * <p>This intent will have 3 extras: |
| 52 | * <ul> |
| 53 | * <li> {@link #EXTRA_STATE} - The current state of the profile. </li> |
| 54 | * <li> {@link #EXTRA_PREVIOUS_STATE}- The previous state of the profile.</li> |
| 55 | * <li> {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. </li> |
| 56 | * </ul> |
| 57 | * |
| 58 | * <p>{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of |
| 59 | * {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, |
| 60 | * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}. |
| 61 | * |
| 62 | * <p>Requires {@link android.Manifest.permission#BLUETOOTH} permission to |
| 63 | * receive. |
| 64 | */ |
| 65 | public static final String ACTION_CONNECTION_STATE_CHANGED = |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 66 | "android.bluetooth.avrcp-controller.profile.action.CONNECTION_STATE_CHANGED"; |
| 67 | |
| 68 | /** |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 69 | * Intent used to broadcast the change in player application setting state on AVRCP AG. |
| 70 | * |
| 71 | * <p>This intent will have the following extras: |
| 72 | * <ul> |
| 73 | * <li> {@link #EXTRA_PLAYER_SETTING} - {@link BluetoothAvrcpPlayerSettings} containing the |
| 74 | * most recent player setting. </li> |
| 75 | * </ul> |
| 76 | */ |
| 77 | public static final String ACTION_PLAYER_SETTING = |
| 78 | "android.bluetooth.avrcp-controller.profile.action.PLAYER_SETTING"; |
| 79 | |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 80 | public static final String EXTRA_PLAYER_SETTING = |
| 81 | "android.bluetooth.avrcp-controller.profile.extra.PLAYER_SETTING"; |
| 82 | |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 83 | private Context mContext; |
| 84 | private ServiceListener mServiceListener; |
| 85 | private IBluetoothAvrcpController mService; |
| 86 | private BluetoothAdapter mAdapter; |
| 87 | |
| 88 | final private IBluetoothStateChangeCallback mBluetoothStateChangeCallback = |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 89 | new IBluetoothStateChangeCallback.Stub() { |
| 90 | public void onBluetoothStateChange(boolean up) { |
| 91 | if (DBG) Log.d(TAG, "onBluetoothStateChange: up=" + up); |
| 92 | if (!up) { |
| 93 | if (VDBG) Log.d(TAG,"Unbinding service..."); |
| 94 | synchronized (mConnection) { |
| 95 | try { |
| 96 | mService = null; |
| 97 | mContext.unbindService(mConnection); |
| 98 | } catch (Exception re) { |
| 99 | Log.e(TAG,"",re); |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 100 | } |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 101 | } |
| 102 | } else { |
| 103 | synchronized (mConnection) { |
| 104 | try { |
| 105 | if (mService == null) { |
| 106 | if (VDBG) Log.d(TAG,"Binding service..."); |
| 107 | doBind(); |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 108 | } |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 109 | } catch (Exception re) { |
| 110 | Log.e(TAG,"",re); |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 111 | } |
| 112 | } |
| 113 | } |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 114 | } |
| 115 | }; |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 116 | |
| 117 | /** |
| 118 | * Create a BluetoothAvrcpController proxy object for interacting with the local |
| 119 | * Bluetooth AVRCP service. |
| 120 | * |
| 121 | */ |
| 122 | /*package*/ BluetoothAvrcpController(Context context, ServiceListener l) { |
| 123 | mContext = context; |
| 124 | mServiceListener = l; |
| 125 | mAdapter = BluetoothAdapter.getDefaultAdapter(); |
| 126 | IBluetoothManager mgr = mAdapter.getBluetoothManager(); |
| 127 | if (mgr != null) { |
| 128 | try { |
| 129 | mgr.registerStateChangeCallback(mBluetoothStateChangeCallback); |
| 130 | } catch (RemoteException e) { |
| 131 | Log.e(TAG,"",e); |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | doBind(); |
| 136 | } |
| 137 | |
| 138 | boolean doBind() { |
| 139 | Intent intent = new Intent(IBluetoothAvrcpController.class.getName()); |
| 140 | ComponentName comp = intent.resolveSystemService(mContext.getPackageManager(), 0); |
| 141 | intent.setComponent(comp); |
| 142 | if (comp == null || !mContext.bindServiceAsUser(intent, mConnection, 0, |
| 143 | android.os.Process.myUserHandle())) { |
| 144 | Log.e(TAG, "Could not bind to Bluetooth AVRCP Controller Service with " + intent); |
| 145 | return false; |
| 146 | } |
| 147 | return true; |
| 148 | } |
| 149 | |
| 150 | /*package*/ void close() { |
| 151 | mServiceListener = null; |
| 152 | IBluetoothManager mgr = mAdapter.getBluetoothManager(); |
| 153 | if (mgr != null) { |
| 154 | try { |
| 155 | mgr.unregisterStateChangeCallback(mBluetoothStateChangeCallback); |
| 156 | } catch (Exception e) { |
| 157 | Log.e(TAG,"",e); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | synchronized (mConnection) { |
| 162 | if (mService != null) { |
| 163 | try { |
| 164 | mService = null; |
| 165 | mContext.unbindService(mConnection); |
| 166 | } catch (Exception re) { |
| 167 | Log.e(TAG,"",re); |
| 168 | } |
| 169 | } |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | public void finalize() { |
| 174 | close(); |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * {@inheritDoc} |
| 179 | */ |
| 180 | public List<BluetoothDevice> getConnectedDevices() { |
| 181 | if (VDBG) log("getConnectedDevices()"); |
| 182 | if (mService != null && isEnabled()) { |
| 183 | try { |
| 184 | return mService.getConnectedDevices(); |
| 185 | } catch (RemoteException e) { |
| 186 | Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| 187 | return new ArrayList<BluetoothDevice>(); |
| 188 | } |
| 189 | } |
| 190 | if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| 191 | return new ArrayList<BluetoothDevice>(); |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * {@inheritDoc} |
| 196 | */ |
| 197 | public List<BluetoothDevice> getDevicesMatchingConnectionStates(int[] states) { |
| 198 | if (VDBG) log("getDevicesMatchingStates()"); |
| 199 | if (mService != null && isEnabled()) { |
| 200 | try { |
| 201 | return mService.getDevicesMatchingConnectionStates(states); |
| 202 | } catch (RemoteException e) { |
| 203 | Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| 204 | return new ArrayList<BluetoothDevice>(); |
| 205 | } |
| 206 | } |
| 207 | if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| 208 | return new ArrayList<BluetoothDevice>(); |
| 209 | } |
| 210 | |
| 211 | /** |
| 212 | * {@inheritDoc} |
| 213 | */ |
| 214 | public int getConnectionState(BluetoothDevice device) { |
| 215 | if (VDBG) log("getState(" + device + ")"); |
| 216 | if (mService != null && isEnabled() |
| 217 | && isValidDevice(device)) { |
| 218 | try { |
| 219 | return mService.getConnectionState(device); |
| 220 | } catch (RemoteException e) { |
| 221 | Log.e(TAG, "Stack:" + Log.getStackTraceString(new Throwable())); |
| 222 | return BluetoothProfile.STATE_DISCONNECTED; |
| 223 | } |
| 224 | } |
| 225 | if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| 226 | return BluetoothProfile.STATE_DISCONNECTED; |
| 227 | } |
| 228 | |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 229 | /** |
| 230 | * Gets the player application settings. |
| 231 | * |
| 232 | * @return the {@link BluetoothAvrcpPlayerSettings} or {@link null} if there is an error. |
| 233 | */ |
| 234 | public BluetoothAvrcpPlayerSettings getPlayerSettings(BluetoothDevice device) { |
| 235 | if (DBG) Log.d(TAG, "getPlayerSettings"); |
| 236 | BluetoothAvrcpPlayerSettings settings = null; |
| 237 | if (mService != null && isEnabled()) { |
| 238 | try { |
| 239 | settings = mService.getPlayerSettings(device); |
| 240 | } catch (RemoteException e) { |
| 241 | Log.e(TAG, "Error talking to BT service in getMetadata() " + e); |
| 242 | return null; |
| 243 | } |
| 244 | } |
| 245 | return settings; |
| 246 | } |
| 247 | |
| 248 | /** |
Sanket Agarwal | 1bec6a5 | 2015-10-21 18:23:27 -0700 | [diff] [blame] | 249 | * Sets the player app setting for current player. |
| 250 | * returns true in case setting is supported by remote, false otherwise |
| 251 | */ |
| 252 | public boolean setPlayerApplicationSetting(BluetoothAvrcpPlayerSettings plAppSetting) { |
| 253 | if (DBG) Log.d(TAG, "setPlayerApplicationSetting"); |
| 254 | if (mService != null && isEnabled()) { |
| 255 | try { |
| 256 | return mService.setPlayerApplicationSetting(plAppSetting); |
| 257 | } catch (RemoteException e) { |
| 258 | Log.e(TAG, "Error talking to BT service in setPlayerApplicationSetting() " + e); |
| 259 | return false; |
| 260 | } |
| 261 | } |
| 262 | if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| 263 | return false; |
| 264 | } |
| 265 | |
| 266 | /* |
| 267 | * Send Group Navigation Command to Remote. |
| 268 | * possible keycode values: next_grp, previous_grp defined above |
| 269 | */ |
| 270 | public void sendGroupNavigationCmd(BluetoothDevice device, int keyCode, int keyState) { |
| 271 | Log.d(TAG, "sendGroupNavigationCmd dev = " + device + " key " + keyCode + " State = " + keyState); |
| 272 | if (mService != null && isEnabled()) { |
| 273 | try { |
| 274 | mService.sendGroupNavigationCmd(device, keyCode, keyState); |
| 275 | return; |
| 276 | } catch (RemoteException e) { |
| 277 | Log.e(TAG, "Error talking to BT service in sendGroupNavigationCmd()", e); |
| 278 | return; |
| 279 | } |
| 280 | } |
| 281 | if (mService == null) Log.w(TAG, "Proxy not attached to service"); |
| 282 | } |
| 283 | |
Mike Lockwood | 94b59de | 2014-06-02 16:20:37 -0700 | [diff] [blame] | 284 | private final ServiceConnection mConnection = new ServiceConnection() { |
| 285 | public void onServiceConnected(ComponentName className, IBinder service) { |
| 286 | if (DBG) Log.d(TAG, "Proxy object connected"); |
| 287 | mService = IBluetoothAvrcpController.Stub.asInterface(service); |
| 288 | |
| 289 | if (mServiceListener != null) { |
| 290 | mServiceListener.onServiceConnected(BluetoothProfile.AVRCP_CONTROLLER, |
| 291 | BluetoothAvrcpController.this); |
| 292 | } |
| 293 | } |
| 294 | public void onServiceDisconnected(ComponentName className) { |
| 295 | if (DBG) Log.d(TAG, "Proxy object disconnected"); |
| 296 | mService = null; |
| 297 | if (mServiceListener != null) { |
| 298 | mServiceListener.onServiceDisconnected(BluetoothProfile.AVRCP_CONTROLLER); |
| 299 | } |
| 300 | } |
| 301 | }; |
| 302 | |
| 303 | private boolean isEnabled() { |
| 304 | if (mAdapter.getState() == BluetoothAdapter.STATE_ON) return true; |
| 305 | return false; |
| 306 | } |
| 307 | |
| 308 | private boolean isValidDevice(BluetoothDevice device) { |
| 309 | if (device == null) return false; |
| 310 | |
| 311 | if (BluetoothAdapter.checkBluetoothAddress(device.getAddress())) return true; |
| 312 | return false; |
| 313 | } |
| 314 | |
| 315 | private static void log(String msg) { |
| 316 | Log.d(TAG, msg); |
| 317 | } |
| 318 | } |