मैं इस प्रकार एक ब्लूटूथ कनेक्शन सेट करने का प्रयास करें: त्रुटि के बिनाएंड्रॉयड ब्लूटूथ कनेक्शन मुद्दा
DEBUG/BluetoothConnectionService(3439): **connect to: 00:18:E4:21:8B:5E**
INFO/BluetoothConnectionService(3439): createRfcommSocket
INFO/BluetoothConnectionService(3439): Bluetooth socket initialised
INFO/BluetoothConnectionService(3439): BEGIN mConnectThread on Device : 00:18:E4:21:8B:5E
INFO/BluetoothConnectionService(3439): **start Bluetooth socket connection**
INFO/BluetoothConnectionService(3439): setState() 1 -> 2
INFO/ProtectionService(3439): MESSAGE_STATE_CHANGE: 1
DEBUG/ProtectionService(3439): STATE_CHANGED to STATE_LISTEN
INFO/ProtectionService(3439): MESSAGE_STATE_CHANGE: 2
DEBUG/abtfilt(2772): **Conn complete**
INFO/bluetoothd(2776): link_key_request (sba=24:21:AB:F4:69:25, dba=00:18:E4:21:8B:5E)
INFO/bluetoothd(2776): link_key_request (sba=24:21:AB:F4:69:25, dba=00:18:E4:21:8B:5E)
INFO/BluetoothConnectionService(3439): **end of Bluetooth socket connection**
INFO/BluetoothConnectionService(3439): **The device is considered as connected, call connected thread**
BluetoothSocket.connect()
वापसी:
private class ConnectThread extends Thread {
private final BluetoothSocket mmSocket;
private final BluetoothDevice mmDevice;
BluetoothSocket connection = null;
public ConnectThread(BluetoothDevice device) {
mmDevice = device;
// Get a BluetoothSocket for a connection with the
// given BluetoothDevice
try {
if(D) Log.i(TAG, "createRfcommSocket");
Method m = mmDevice.getClass().getMethod("createRfcommSocket",new Class[] { int.class });
connection = (BluetoothSocket) m.invoke(mmDevice, 1);
Utils.pause(100);
} catch (Exception e) {
Log.e(TAG, "create() failed", e);
}
if(D) Log.i(TAG,"Bluetooth socket initialised");
mmSocket = connection;
}
public void run() {
if(D) Log.i(TAG, "BEGIN mConnectThread on Device : " + mmDevice);
setName("ConnectThread");
if (mmSocket != null) {
// Always cancel discovery because it will slow down a connection
if(mAdapter.isDiscovering()) {
if(D) Log.i(TAG, "stop discovering before trying to connect");
mAdapter.cancelDiscovery();
}
// Make a connection to the BluetoothSocket
try {
// This is a blocking call and will only return on a
// successful connection or an exception
if(D) Log.i(TAG, "start Bluetooth socket connection");
mmSocket.connect();
if(D) Log.i(TAG, "end of Bluetooth socket connection");
} catch (Exception e1) {
Log.e(TAG, "connect failed", e1);
connectionFailed();
// Reset the socket
resetConnection(mmSocket);
// Start the service over to restart listening mode
if(D) Log.i(TAG, "restart connection");
BluetoothConnectionService.this.start();
if(D) Log.i(TAG, "return");
return;
}
// Start the connected thread
if(D) Log.i(TAG, "The device is considered as connected, call connected thread");
connected(mmSocket, mmDevice);
} else {
if(D) Log.i(TAG, "connection fail");
connectionFailed();
BluetoothConnectionService.this.start();
}
}
public void cancel() {
if(D) Log.i(TAG,"connect thread cancel");
resetConnection(mmSocket);
}
}
कनेक्शन ठीक हो रहा है, मैं इस लॉग मिलता है।
तब मैं इस के संबंध प्रबंधन:
private class ConnectedThread extends Thread {
private final BluetoothSocket mmSocket;
private final InputStream mmInStream;
private final OutputStream mmOutStream;
public ConnectedThread(BluetoothSocket socket) {
if(D) Log.d(TAG, "create ConnectedThread");
mmSocket = socket;
// Get the BluetoothSocket input and output streams
try {
if(D) Log.i(TAG, "Get input stream");
tmpIn = socket.getInputStream();
if(D) Log.i(TAG, "Get output stream");
tmpOut = socket.getOutputStream();
if(D) Log.i(TAG, "isConnected = true");
isConnected = true;
} catch (IOException e) {
Log.e(TAG, "Input and Output sockets not created", e);
isConnected = false;
}
mmInStream = tmpIn;
mmOutStream = tmpOut;
}
public void run() {
if(D) Log.i(TAG, "BEGIN mConnectedThread");
byte[] buffer = new byte[1024]; //buffer store for the stream
int bytes; //bytes returned from read()
// Keep listening to the InputStream until an exception occurs
while(true) {
try {
// Read from the InputStream
if(D) Log.i(TAG, "start read mmInStream");
bytes = mmInStream.read(buffer);
if(D) Log.i(TAG, "Bytes read : "+bytes);
// Send the obtained bytes to the UI Activity
mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer).sendToTarget();
} catch (IOException e) {
Log.e(TAG, "ConnectedThread : disconnected", e);
break;
}
}
}
/**
* Write to the connected OutStream.
*
* @param buffer
* The bytes to write
*/
public void write(byte[] buffer) {
try {
mmOutStream.write(buffer);
// Share the sent message back to the UI Activity
mHandler.obtainMessage(MESSAGE_WRITE, -1, -1, buffer).sendToTarget();
// mmOutStream.flush();
} catch (IOException e) {
Log.e(TAG, "Exception during write", e);
connectionFailed();
}
}
public void cancel() {
if(D) Log.i(TAG,"connected Thread cancel");
resetConnection(mmSocket);
}
}
और मैं यह त्रुटि प्राप्त:
DEBUG/BluetoothConnectionService(3439): create ConnectedThread
INFO/BluetoothConnectionService(3439): Get input stream
INFO/BluetoothConnectionService(3439): Get output stream
INFO/BluetoothConnectionService(3439): isConnected = true
INFO/BluetoothConnectionService(3439): BEGIN mConnectedThread
INFO/BluetoothConnectionService(3439): start read mmInStream
INFO/BluetoothConnectionService(3439): setState() 2 -> 3
INFO/ProtectionService(3439): MESSAGE_STATE_CHANGE: 3
DEBUG/ProtectionService(3439): connectionEstablished
**ERROR/BluetoothConnectionService(3439): ConnectedThread : disconnected
ERROR/BluetoothConnectionService(3439): java.io.IOException: Software caused connection abort
ERROR/BluetoothConnectionService(3439): at android.bluetooth.BluetoothSocket.readNative(Native Method)
ERROR/BluetoothConnectionService(3439): at android.bluetooth.BluetoothSocket.read(BluetoothSocket.java:307)
ERROR/BluetoothConnectionService(3439): at android.bluetooth.BluetoothInputStream.read(BluetoothInputStream.java:96)
ERROR/BluetoothConnectionService(3439): at java.io.InputStream.read(InputStream.java:133)**
INFO/ProtectionService(3439): Send Bluetooth message
**ERROR/BluetoothConnectionService(3439): Exception during write
ERROR/BluetoothConnectionService(3439): java.io.IOException: Transport endpoint is not connected
ERROR/BluetoothConnectionService(3439): at android.bluetooth.BluetoothSocket.writeNative(Native Method)
ERROR/BluetoothConnectionService(3439): at android.bluetooth.BluetoothSocket.write(BluetoothSocket.java:317)**
त्रुटि स्पष्ट रूप से आते हैं जब मैं यह कर रहा हूं:
bytes = mmInStream.read(buffer);
क्या क्या मैं गलत कर रहा हूँ? मैं एक सप्ताह के लिए इस त्रुटि पर काम कर रहा हूं और मैं नहीं जा सकता ...
किसी भी मदद की बहुत सराहना की जाएगी!
आप इस मुद्दे में मदद कर सकते हैं http://stackoverflow.com/प्रश्न/40559549/एंड्रॉइड-ब्लूटूथ-जावा-आईओ-ioexception-bt-socket-off-read-return-1? noredirect = 1 # comment68358423_40559549 – Achin