Click here to Skip to main content

Janna Mamer Dela Cruz asked:

Open original thread
Hi All,

I have this code i get in[^] to discover devices that is triggered by a button. But whenever i run it, the program always pop-up a message to force close it. i don't know why. please help me.. here's is my code.. Thanks!
 public void checkIfBluetoothOpen(View view) {
		BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
		if (mBluetoothAdapter == null) {
		    // Device does not support Bluetooth
			AlertDialog.Builder builder=new AlertDialog.Builder(this);
			.setMessage("Your device does not support bluetooth.")
			.setPositiveButton("OK", null)
			if (!mBluetoothAdapter.isEnabled()) {
				// Bluetooth is close
				 Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
				    startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
			Set<bluetoothdevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
			// If there are paired devices
			if (pairedDevices.size() > 0) {
			    // Loop through paired devices
			    for (BluetoothDevice device : pairedDevices) {
			        // Add the name and address to an array adapter to show in a ListView
			        mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
			// Create a BroadcastReceiver for ACTION_FOUND
			final BroadcastReceiver mReceiver = new BroadcastReceiver() {
			    public void onReceive(Context context, Intent intent) {
			        String action = intent.getAction();
			        // When discovery finds a device
			        if (BluetoothDevice.ACTION_FOUND.equals(action)) {
			            // Get the BluetoothDevice object from the Intent
			            BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
			            // Add the name and address to an array adapter to show in a ListView
			            mArrayAdapter.add(device.getName() + "\n" + device.getAddress());
			// Register the BroadcastReceiver
			IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
			registerReceiver(mReceiver, filter); // Don't forget to unregister during onDestroy
			Intent discoverableIntent = new
			discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
Tags: Android


When answering a question please:
  1. Read the question carefully.
  2. Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
  3. If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Let's work to help developers, not make them feel stupid.
Please note that all posts will be submitted under the The Code Project Open License (CPOL).

Advertise | Privacy | Mobile
Web04 | 2.8.140709.1 | Last Updated 26 Mar 2009
Copyright © CodeProject, 1999-2014
All Rights Reserved. Terms of Service
Layout: fixed | fluid