Can not terminate socket on activity close.

[amit-jangir123]

@Override public void onConnect(BluetoothDevice device) { Display("Connected to "+device.getName()+" - "+device.getAddress()); this.runOnUiThread(new Runnable() { @Override public void run() {

        }
    });
}

public void Display(final String s){
    this.runOnUiThread(new Runnable() {
        @Override
        public void run() {
            Log.e("Status","------------------------------------------"+s);
        }
    });
}

@Override
public void onDisconnect(BluetoothDevice device, String message) {
    Display("Disconnected!");
    Display("Connecting again...");
    b.connectToDevice(device);
}

@Override
public void onMessage(String message) {

    this.runOnUiThread(new Runnable() {
        @Override
        public void run() {
            String str = message;
            str = str.substring(1,str.length());
            String liter = str.substring(0,3);
            String subleter = str.substring(4,5);
            String lastLeter = liter+"."+subleter;

            Log.e("Message","------------------------------------------"+message);
            if(et_weightHasFocus && message.contains("L"))
                et_weight.setText(lastLeter);
        }
    });

}

@Override
public void onError(String message) {
    Display("Error: "+message);
}

@Override
public void onConnectError(final BluetoothDevice device, String message) {
    Display("Error: "+message);
    Display("Trying again in 3 sec.");
    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            Handler handler = new Handler();
            handler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    b.connectToDevice(device);
                }
            }, 2000);
        }
    });
}

private final BroadcastReceiver mReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { final String action = intent.getAction();

        if (action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
            final int state = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);
         //   Intent intent1 = new Intent(Chat.this, Select.class);

            switch (state) {
                case BluetoothAdapter.STATE_OFF:
                    if(registered) {
                        unregisterReceiver(mReceiver);
                        registered=false;
                    }

// startActivity(intent1); // finish(); break; case BluetoothAdapter.STATE_TURNING_OFF: if(registered) { unregisterReceiver(mReceiver); registered=false; } // startActivity(intent1); finish(); break; } } } };

@Override public void onBackPressed() {

    Log.e("register",registered+"");
    if(registered) {
        unregisterReceiver(mReceiver);
        registered=false;
    }



    finish();
}

I have to close the socket because next time i open it, it fails to connect Says Try again in 3 seconds Need Help

[amit-jangir123]

Same happing in your code too, socket is not terminating

[omaraflak]

You don't have to register and unregister broadcast listeners yourself. Call disconnect() and onStop()