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POandroid bluetooth discovery: ACTION_FOUND happening after ACTION_DISCOVERY_FINISHED
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  1. POandroid bluetooth discovery: ACTION_FOUND happening after ACTION_DISCOVERY_FINISHED
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    copied!<p>I am implementing Bluetooth support via implementing a task which searches for devices in the background and provides a list when the search is complete. However, this list occasionally contains a <code>No devices found</code> entry (added only when <code>ACTION_DISCOVERY_FINISHED</code> is received with no devices already in the list) before listing other devices!</p> <pre><code>private BroadcastReceiver mBlueToothInfoDiscoveryListener = new BroadcastReceiver() { /** * This is an overridden function called by the framework whenever there * is some broadcast message for Bluetooth info discovery listener */ @Override 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); // If it's already paired, skip it, because it's been listed // already if (device.getBondState() != BluetoothDevice.BOND_BONDED) { mNewBtDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress()); } } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) { // When discovery is finished, change the Activity title setProgressBarIndeterminateVisibility(false); setTitle("device list"); if (mNewBtDevicesArrayAdapter.getCount() == 0) { String noDevices = "No devices found"; mNewBtDevicesArrayAdapter.add(noDevices); } } } }; </code></pre> <p>I don't expect <code>ACTION_DISCOVERY_FINISHED</code> to ever come <em>before</em> a <code>ACTION_FOUND</code> event, so why would the <code>No devices found</code> string be added to the list before a device is located?</p>
 

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