Question

I’ve been searching for a while and there doesn’t seem to be a way. But..

Is there any intent filter for the connection state of a bluetooth device? I tried using. BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED but that is never recieved. Yes I do register the intent filter.

In logcat I see BluetoothService Making callback for “UUID” with result 1 right after the device is connected but nothing os received

Answer 1

Try the below,

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.os.Bundle;
import android.widget.Toast;

public class BluetoothStatus extends Activity {
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter();

  String toastText;
  if (bluetooth.isEnabled()) {
   String address = bluetooth.getAddress();
   String name = bluetooth.getName();
   toastText = name + " : " + address;
  } else
   toastText = "Bluetooth is not enabled";

  Toast.makeText(this, toastText, Toast.LENGTH_LONG).show();

  bluetooth.setName("Enrichware");

 }
}

Details: http://learnandroiddevelopment.blogspot.in/2011/02/android-how-to-find-bluetooth-status.html

Using IntentFilter, Sample: How to programmatically tell if a Bluetooth device is connected? (Android 2.2)