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블루투스를 통해 스마트 폰을 평가 보드와 페어링 할 앱을 개발 중입니다. 나는 보드를 휴대폰에서 찾았고 그것들을 쌍으로 만들었지 만, 이런 일이 생기면 연결 부위가 없어졌습니다. 나는 다른 애플 리케이션과 그들을 짝 지우려고 노력하고 잘 작동하므로 내 코드에 뭔가 있어야합니다. 이들은 내 애플 리케이션이 연결을 만들기 위해 따라야 할 단계들입니다.블루투스 연결이 끊어졌습니다
MainActivity :
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
/*Gets bluetooth adapter*/
GlobalVar.mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
/*Resgisters receiver*/
registerReceiver(bluetoothDeviceSelectedReceiver, new IntentFilter(
"android.bluetooth.devicepicker.action.DEVICE_SELECTED"));
/*Calls method to make conection and pair devices*/
newConection();
}
public void newConection() {
/*Our device does not support BT*/
if (GlobalVar.mBluetoothAdapter == null) {
Toast.makeText(this, R.string.bluetooth_not_available, Toast.LENGTH_LONG).show();
finish();
return;
}
/*Enables BT if is disabled*/
if (!GlobalVar.mBluetoothAdapter.isEnabled()) {
Intent enableBTIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableBTIntent, REQUEST_ENABLE_BT);
return;
}
/*If is already enabled, starts session*/
else {
GlobalVar.mConnections = new ManageConnection(MainActivity.this, this);
}
/*Opens activity to select device*/
openSelectDevice();
}
/**Starts activity to select device*/
public void openSelectDevice() {
startActivity(new Intent("android.bluetooth.devicepicker.action.LAUNCH")
.putExtra("android.bluetooth.devicepicker.extra.NEED_AUTH", false)
.putExtra("android.bluetooth.devicepicker.extra.FILTER_TYPE", 0)
.setFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS));
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_ENABLE_BT:
if (resultCode == RESULT_OK) {
/*Starts session*/
GlobalVar.mConnections = new ManageConnection(this, this);
openSelectDevice();
}
break;
}
}
/**Receiver to make somethign when a device is selected to pair*/
public BroadcastReceiver bluetoothDeviceSelectedReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
/*Gets device*/
BluetoothDevice device = (BluetoothDevice) intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
GlobalVar.mConnections.cancelClient();
GlobalVar.mConnections.startClient(device, MainActivity.this);
}
};
ManageConnections :
/**Constructor*/
public ManageConnection(Context context, ConnectionListener connectionListener) {
this.connectionListener = connectionListener;
}
public synchronized void startClient(BluetoothDevice device, ConnectionListener cnListener) {
/*Cancel any thread attempting to make a connection*/
if (mState == STATE_CONNECTING) {
if (GlobalVar.clientConnectionThread != null) {
GlobalVar.clientConnectionThread.cancel();
GlobalVar.clientConnectionThread = null;
}
}
/*Cancel any thread currently running a connection*/
if (GlobalVar.connectedThread != null) {
GlobalVar.connectedThread.cancel();
GlobalVar.connectedThread = null;
}
/*Start the thread to connect with the given device*/
GlobalVar.clientConnectionThread = new ClientConnectionThread(device, cnListener);
GlobalVar.clientConnectionThread.start();
}
ClientConectionThread :
public ClientConnectionThread(BluetoothDevice device, ConnectionListener connectionListener) {
this.connectionListener = connectionListener;
BluetoothSocket socketTemp = null;
try {
socketTemp = device.createRfcommSocketToServiceRecord(GlobalVar.MY_UUID);
} catch (IOException e) {
}
socket = socketTemp;
}
@Override
public void run() {
try {
socket.connect();
connectionListener.onConnected(socket);
} catch (IOException e) {
try {
socket.close();
} catch (IOException e1) {}
}
}
MannageConections :
public synchronized void startConnected(BluetoothSocket socket, Activity activity, ConnectionListener cnListener) {
/*Cancel the thread that completed the connection*/
if (GlobalVar.clientConnectionThread != null) {
GlobalVar.clientConnectionThread.cancel();
GlobalVar.clientConnectionThread = null;
}
/*Cancel any thread currently running a connection*/
if (GlobalVar.connectedThread != null) {
GlobalVar.connectedThread.cancel();
GlobalVar.connectedThread = null;
}
/*Cancel the accept thread because we only want to connect to one device*/
if (GlobalVar.serverConnectionThread != null) {
GlobalVar.serverConnectionThread.cancel();
GlobalVar.serverConnectionThread = null;
}
/*Start the thread to manage the connection and perform transmissions*/
GlobalVar.connectedThread = new ConnectedThread(socket, activity, cnListener);
GlobalVar.connectedThread.start();
}
ConnectedThread가 :
public ConnectedThread(BluetoothSocket socket, Activity activity, ConnectionListener connectionListener) {
this.socket = socket;
this.activity = activity;
this.connectionListener = connectionListener;
InputStream inTemp = null;
OutputStream outTemp = null;
try {
inTemp = socket.getInputStream();
outTemp = socket.getOutputStream();
} catch (IOException e) {
}
inputStream = inTemp;
outputStream = outTemp;
}
@Override
public void run() {
byte[] buffer = new byte[1024];
int readed;
while (true) {
try {
readed = inputStream.read(buffer); //IN THIS POINT JUMPS TO THE CATCH STATEMENT
if (readed > 0) {
final byte[] temp = new byte [readed];
System.arraycopy(buffer, 0, temp, 0, readed);
/*Shows on UI*/
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
connectionListener.msgRead(temp);
}
});
}
} catch (IOException e) {
connectionListener.onDisconnected("Error when reading: " +e.getMessage());
break;
}
}
}
그래서, 표시 위의 줄에 catch 문으로 이동이 내가 로그 캣에 무엇을 얻을 수 있습니다 :
11-27 09:49:24.438: W/BluetoothAdapter(5297): getBluetoothService() called with no BluetoothManagerCallback
11-27 09:49:24.438: D/BluetoothSocket(5297): connect(), SocketState: INIT, mPfd: {ParcelFileDescriptor: FileDescriptor[46]}
11-27 09:49:24.458: I/Adreno200-EGL(5297): <qeglDrvAPI_eglInitialize:265>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_JB_2.5.5.04.02.02.092.059_msm8960_JB_2.5.5_CL3896081_release_AU (CL3896081)
11-27 09:49:24.458: I/Adreno200-EGL(5297): Build Date: 06/25/13 Tue
11-27 09:49:24.458: I/Adreno200-EGL(5297): Local Branch:
11-27 09:49:24.458: I/Adreno200-EGL(5297): Remote Branch: quic/jb_2.5.5
11-27 09:49:24.458: I/Adreno200-EGL(5297): Local Patches: NONE
11-27 09:49:24.458: I/Adreno200-EGL(5297): Reconstruct Branch: AU_LINUX_ANDROID_JB_2.5.5.04.02.02.092.059 + NOTHING
11-27 09:49:24.528: D/OpenGLRenderer(5297): Enabling debug mode 0
11-27 09:49:24.658: I/Timeline(5297): Timeline: Activity_idle id: [email protected] time:2279177
11-27 09:49:25.769: E/BluetoothSocket(5297): IOException while reading the InputStream
11-27 09:49:25.779: D/onDisconnected(5297): Error when reading: bt socket closed, read return: -1