/* * Copyright (C) 2014 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.bluetooth; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.ServiceConnection; import android.os.IBinder; import android.os.RemoteException; import android.util.Log; import java.util.ArrayList; import java.util.List; /** * This class provides the public APIs to control the Bluetooth AVRCP Controller * profile. * *
BluetoothAvrcpController is a proxy object for controlling the Bluetooth AVRCP * Service via IPC. Use {@link BluetoothAdapter#getProfileProxy} to get * the BluetoothAvrcpController proxy object. * * {@hide} */ public final class BluetoothAvrcpController implements BluetoothProfile { private static final String TAG = "BluetoothAvrcpController"; private static final boolean DBG = true; private static final boolean VDBG = false; /** * Intent used to broadcast the change in connection state of the AVRCP Controller * profile. * *
This intent will have 3 extras: *
{@link #EXTRA_STATE} or {@link #EXTRA_PREVIOUS_STATE} can be any of * {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}. * *
Requires {@link android.Manifest.permission#BLUETOOTH} permission to
* receive.
*/
public static final String ACTION_CONNECTION_STATE_CHANGED =
"android.bluetooth.acrcp-controller.profile.action.CONNECTION_STATE_CHANGED";
private Context mContext;
private ServiceListener mServiceListener;
private IBluetoothAvrcpController mService;
private BluetoothAdapter mAdapter;
final private IBluetoothStateChangeCallback mBluetoothStateChangeCallback =
new IBluetoothStateChangeCallback.Stub() {
public void onBluetoothStateChange(boolean up) {
if (DBG) Log.d(TAG, "onBluetoothStateChange: up=" + up);
if (!up) {
if (VDBG) Log.d(TAG,"Unbinding service...");
synchronized (mConnection) {
try {
mService = null;
mContext.unbindService(mConnection);
} catch (Exception re) {
Log.e(TAG,"",re);
}
}
} else {
synchronized (mConnection) {
try {
if (mService == null) {
if (VDBG) Log.d(TAG,"Binding service...");
doBind();
}
} catch (Exception re) {
Log.e(TAG,"",re);
}
}
}
}
};
/**
* Create a BluetoothAvrcpController proxy object for interacting with the local
* Bluetooth AVRCP service.
*
*/
/*package*/ BluetoothAvrcpController(Context context, ServiceListener l) {
mContext = context;
mServiceListener = l;
mAdapter = BluetoothAdapter.getDefaultAdapter();
IBluetoothManager mgr = mAdapter.getBluetoothManager();
if (mgr != null) {
try {
mgr.registerStateChangeCallback(mBluetoothStateChangeCallback);
} catch (RemoteException e) {
Log.e(TAG,"",e);
}
}
doBind();
}
boolean doBind() {
Intent intent = new Intent(IBluetoothAvrcpController.class.getName());
ComponentName comp = intent.resolveSystemService(mContext.getPackageManager(), 0);
intent.setComponent(comp);
if (comp == null || !mContext.bindServiceAsUser(intent, mConnection, 0,
android.os.Process.myUserHandle())) {
Log.e(TAG, "Could not bind to Bluetooth AVRCP Controller Service with " + intent);
return false;
}
return true;
}
/*package*/ void close() {
mServiceListener = null;
IBluetoothManager mgr = mAdapter.getBluetoothManager();
if (mgr != null) {
try {
mgr.unregisterStateChangeCallback(mBluetoothStateChangeCallback);
} catch (Exception e) {
Log.e(TAG,"",e);
}
}
synchronized (mConnection) {
if (mService != null) {
try {
mService = null;
mContext.unbindService(mConnection);
} catch (Exception re) {
Log.e(TAG,"",re);
}
}
}
}
public void finalize() {
close();
}
/**
* {@inheritDoc}
*/
public List