| package com.android.nfc.beam; |
| |
| import android.app.Service; |
| import android.bluetooth.BluetoothAdapter; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.os.RemoteException; |
| import android.util.Log; |
| |
| |
| /** |
| * @hide |
| */ |
| public class BeamReceiveService extends Service implements BeamTransferManager.Callback { |
| private static String TAG = "BeamReceiveService"; |
| private static boolean DBG = true; |
| |
| public static final String EXTRA_BEAM_TRANSFER_RECORD |
| = "com.android.nfc.beam.EXTRA_BEAM_TRANSFER_RECORD"; |
| public static final String EXTRA_BEAM_COMPLETE_CALLBACK |
| = "com.android.nfc.beam.TRANSFER_COMPLETE_CALLBACK"; |
| |
| private BeamStatusReceiver mBeamStatusReceiver; |
| private boolean mBluetoothEnabledByNfc; |
| private int mStartId; |
| private BeamTransferManager mTransferManager; |
| private Messenger mCompleteCallback; |
| |
| private final BluetoothAdapter mBluetoothAdapter; |
| private final BroadcastReceiver mBluetoothStateReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (BluetoothAdapter.ACTION_STATE_CHANGED.equals(action)) { |
| int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, |
| BluetoothAdapter.ERROR); |
| if (state == BluetoothAdapter.STATE_OFF) { |
| mBluetoothEnabledByNfc = false; |
| } |
| } |
| } |
| }; |
| |
| public BeamReceiveService() { |
| mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); |
| } |
| |
| @Override |
| public int onStartCommand(Intent intent, int flags, int startId) { |
| mStartId = startId; |
| |
| BeamTransferRecord transferRecord; |
| if (intent == null || |
| (transferRecord = intent.getParcelableExtra(EXTRA_BEAM_TRANSFER_RECORD)) == null) { |
| if (DBG) Log.e(TAG, "No transfer record provided. Stopping."); |
| stopSelf(startId); |
| return START_NOT_STICKY; |
| } |
| |
| mCompleteCallback = intent.getParcelableExtra(EXTRA_BEAM_COMPLETE_CALLBACK); |
| |
| if (prepareToReceive(transferRecord)) { |
| if (DBG) Log.i(TAG, "Ready for incoming Beam transfer"); |
| return START_STICKY; |
| } else { |
| invokeCompleteCallback(false); |
| stopSelf(startId); |
| return START_NOT_STICKY; |
| } |
| } |
| |
| // TODO: figure out a way to not duplicate this code |
| @Override |
| public void onCreate() { |
| super.onCreate(); |
| |
| // register BT state receiver |
| IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED); |
| registerReceiver(mBluetoothStateReceiver, filter); |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| if (mBeamStatusReceiver != null) { |
| unregisterReceiver(mBeamStatusReceiver); |
| } |
| unregisterReceiver(mBluetoothStateReceiver); |
| } |
| |
| boolean prepareToReceive(BeamTransferRecord transferRecord) { |
| if (mTransferManager != null) { |
| return false; |
| } |
| |
| if (transferRecord.dataLinkType != BeamTransferRecord.DATA_LINK_TYPE_BLUETOOTH) { |
| // only support BT |
| return false; |
| } |
| |
| if (!mBluetoothAdapter.isEnabled()) { |
| if (!mBluetoothAdapter.enableNoAutoConnect()) { |
| Log.e(TAG, "Error enabling Bluetooth."); |
| return false; |
| } |
| mBluetoothEnabledByNfc = true; |
| if (DBG) Log.d(TAG, "Queueing out transfer " |
| + Integer.toString(transferRecord.id)); |
| } |
| |
| mTransferManager = new BeamTransferManager(this, this, transferRecord, true); |
| |
| // register Beam status receiver |
| mBeamStatusReceiver = new BeamStatusReceiver(this, mTransferManager); |
| registerReceiver(mBeamStatusReceiver, mBeamStatusReceiver.getIntentFilter(), |
| BeamStatusReceiver.BEAM_STATUS_PERMISSION, new Handler()); |
| |
| mTransferManager.start(); |
| mTransferManager.updateNotification(); |
| return true; |
| } |
| |
| private void invokeCompleteCallback(boolean success) { |
| if (mCompleteCallback != null) { |
| try { |
| Message msg = Message.obtain(null, BeamManager.MSG_BEAM_COMPLETE); |
| msg.arg1 = success ? 1 : 0; |
| mCompleteCallback.send(msg); |
| } catch (RemoteException e) { |
| Log.e(TAG, "failed to invoke Beam complete callback", e); |
| } |
| } |
| } |
| |
| @Override |
| public void onTransferComplete(BeamTransferManager transfer, boolean success) { |
| // Play success sound |
| if (!success) { |
| if (DBG) Log.d(TAG, "Transfer failed, final state: " + |
| Integer.toString(transfer.mState)); |
| } |
| |
| if (mBluetoothEnabledByNfc) { |
| mBluetoothEnabledByNfc = false; |
| mBluetoothAdapter.disable(); |
| } |
| |
| invokeCompleteCallback(success); |
| stopSelf(mStartId); |
| } |
| |
| @Override |
| public IBinder onBind(Intent intent) { |
| return null; |
| } |
| } |