public boolean disconnect(BluetoothDevice device) {
if (mService == null) return false;
// Downgrade priority as user is disconnecting the headset.
if (mService.getPriority(device) > BluetoothProfile.PRIORITY_ON) {
mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
}
return mService.disconnect(device);
}
boolean isA2dpPlaying() {
if (mService == null) return false;
List<BluetoothDevice> sinks = mService.getConnectedDevices();
if (!sinks.isEmpty()) {
if (mService.isA2dpPlaying(sinks.get(0))) {
return true;
}
}
return false;
}
public void setPreferred(BluetoothDevice device, boolean preferred) {
if (mService == null) return;
if (preferred) {
if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
}
} else {
mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
}
}
public boolean connect(BluetoothDevice device) {
if (mService == null) return false;
List<BluetoothDevice> sinks = getConnectedDevices();
if (sinks != null) {
if (sinks.contains(device)) {
Log.d(
TAG,
"The attempt connecting device is the already in the connected device list, do not need disconnect, connect, just return true");
return true;
}
for (BluetoothDevice sink : sinks) {
mService.disconnect(sink);
}
}
return mService.connect(device);
}
public List<BluetoothDevice> getConnectedDevices() {
if (mService == null) return new ArrayList<BluetoothDevice>(0);
return mService.getDevicesMatchingConnectionStates(
new int[] {
BluetoothProfile.STATE_CONNECTED,
BluetoothProfile.STATE_CONNECTING,
BluetoothProfile.STATE_DISCONNECTING
});
}
public int getPreferred(BluetoothDevice device) {
if (mService == null) return BluetoothProfile.PRIORITY_OFF;
return mService.getPriority(device);
}
public boolean isPreferred(BluetoothDevice device) {
if (mService == null) return false;
return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
}
public int getConnectionStatus(BluetoothDevice device) {
if (mService == null) {
return BluetoothProfile.STATE_DISCONNECTED;
}
return mService.getConnectionState(device);
}