5
Sto provando a creare un semplice programma che analizza un auricolare bluetooth (sto testando con un auricolare PS3) e quindi mi collego ad esso. Sto usando il codice dallo bluetooth chat program example. Tuttavia non riesco a collegarlo a nulla. Mi sta dando un'eccezione I/O quando arriva a connect().Connetti/Accoppia auricolare Bluetooth e Android
private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
Questo thread viene eseguito durante il tentativo di stabilire una connessione in uscita con un dispositivo. Funziona dritto attraverso; la connessione ha esito positivo o negativo.
private class ConnectThread extends Thread {
private final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;
public ConnectThread(BluetoothDevice device) {
mmDevice = device;
BluetoothSocket tmp = null;
// Get a BluetoothSocket for a connection with the given BluetoothDevice
try {
tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
} catch (IOException e) {
Log.e(TAG, "create() failed", e);
}
if (tmp == null){
Log.i(TAG, "tmp is NULL");
}
mmSocket = tmp;
}
public void run() {
Log.i(TAG, "BEGIN mConnectThread");
setName("ConnectThread");
// Always cancel discovery because it will slow down a connection
mAdapter.cancelDiscovery();
Log.i(TAG, "discovery is cancelled");
// Make a connection to the BluetoothSocket
try {
// This is a blocking call and will only return on a successful connection or an exception
mmSocket.connect(); //Doesn't like something here???
} catch (IOException e) {
Log.e(TAG, "IO error, ", e);
connectionFailed();
// Close the socket
try {
mmSocket.close();
} catch (IOException e2) {
Log.e(TAG, "unable to close() socket during connection failure", e2);
}
// Start the service over to restart listening mode
newTBluetoothService.this.start();
return;
}
// Reset the ConnectThread because we're done
synchronized (newBluetoothService.this) {
mConnectThread = null;
}
// Start the connected thread
connected(mmSocket, mmDevice);
}
public void cancel() {
try {
mmSocket.close();
} catch (IOException e) {
Log.e(TAG, "close() of connect socket failed", e);
}
}
}
Ecco il logcat:
10-13 16:07:45.544: ERROR/BluetoothService.cpp(1259):
stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)
10-13 16:07:45.544: DEBUG/newBluetoothService(2821): connect to: 00:22:A6:07:12:2B
10-13 16:07:45.544: DEBUG/newBluetoothService(2821): setState() 0 -> 2
10-13 16:07:45.552: INFO/newBluetoothService(2821): BEGIN mConnectThread
10-13 16:07:45.567: ERROR/BluetoothService.cpp(1259): stopDiscoveryNative: D-Bus error in StopDiscovery: org.bluez.Error.Failed (Invalid discovery session)
10-13 16:07:45.567: INFO/newBluetoothService(2821): discovery is cancelled
10-13 16:07:45.575: ERROR/BluetoothEventLoop.cpp(1259): onCreateDeviceResult: D-Bus error: org.bluez.Error.AlreadyExists (Device already exists)
10-13 16:07:45.583: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 2
10-13 16:07:46.700: ERROR/BluetoothEventLoop.cpp(1259): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/2872/hci0/dev_00_22_A6_07_12_2B
10-13 16:07:47.036: DEBUG/BluetoothService(1259): updateDeviceServiceChannelCache(00:22:A6:07:12:2B)
10-13 16:07:47.059: DEBUG/BluetoothService(1259): uuid(system): 0000111e-0000-1000-8000-00805f9b34fb 1
10-13 16:07:47.067: DEBUG/BluetoothService(1259): uuid(system): 00001108-0000-1000-8000-00805f9b34fb 2
10-13 16:07:47.075: VERBOSE/BluetoothEventRedirector(1786): Received android.bleutooth.device.action.UUID
10-13 16:07:47.075: DEBUG/BluetoothService(1259): Cleaning up failed UUID channel lookup: 00:22:A6:07:12:2B 00001101-0000-1000-8000-00805f9b34fb
10-13 16:07:47.083: ERROR/newBluetoothService(2821): IO error,
10-13 16:07:47.083: ERROR/newBluetoothService(2821): java.io.IOException: Service discovery failed
10-13 16:07:47.083: ERROR/newBluetoothService(2821): at android.bluetooth.BluetoothSocket$SdpHelper.doSdp(BluetoothSocket.java:377)
10-13 16:07:47.083: ERROR/newBluetoothService(2821): at android.bluetooth.BluetoothSocket.connect(BluetoothSocket.java:201)
10-13 16:07:47.083: ERROR/newBluetoothService(2821): at com.nmtransfer.bluetooth.newBluetoothService$ConnectThread.run(newBluetoothService.java:347)
10-13 16:07:47.083: INFO/newBluetoothService(2821): Connection Failed
10-13 16:07:47.083: DEBUG/newBluetoothService(2821): setState() 2 -> 1
10-13 16:07:47.083: DEBUG/newBluetoothService(2821): start
10-13 16:07:47.083: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 1
10-13 16:07:47.098: DEBUG/BluetoothService(1259): new handle 1000d
10-13 16:07:47.106: DEBUG/newBluetoothService(2821): setState() 1 -> 1
10-13 16:07:47.106: DEBUG/newBluetoothService(2821): BEGIN mAcceptThreadThread[Thread-
13,5,main]
10-13 16:07:47.114: INFO/BluetoothNew(2821): MESSAGE_STATE_CHANGE: 1
10-13 16:07:51.036: ERROR/BluetoothEventLoop.cpp(1259): event_filter: Received signal org.bluez.Device:PropertyChanged from /org/bluez/2872/hci0/dev_00_22_A6_07_12_2B
10-13 16:07:53.583: VERBOSE/BluetoothEventRedirector(1786): Received android.bleutooth.device.action.UUID
Ogni aiuto è molto apprezzato.
Grazie Chris
Sto testando un Droid X con l'aggiornamento 2.2 e un auricolare Bluetooth PS3. Viene abbinato ma non si connetterà. Posso collegare manualmente l'auricolare quando vado nelle impostazioni Bluetooth. –