我在使用startDiscovery()时遇到了麻烦.这是问题所在,我已将以下Intent注册到我的BroadcastReceiver,如下所示: IntentFilter filterFound = new IntentFilter(BluetoothDevice.ACTION_FOUND);IntentFilter filterStart = new
IntentFilter filterFound = new IntentFilter(BluetoothDevice.ACTION_FOUND); IntentFilter filterStart = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_STARTED); IntentFilter filterStop = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED); registerReceiver(myReceiver, filterFound); registerReceiver(myReceiver, filterStart); registerReceiver(myReceiver, filterStop);
这是我的广播接收器:
private BroadcastReceiver myReceiver = new BroadcastReceiver() { public void onReceive(Context context, Intent intent) { Log.d(TAG, "onReceive (myReceiver)"); 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 Log.d(TAG,device.getName() + " " + device.getAddress()); deviceListAdapter.add(device.getName() + "\n" + device.getAddress()); } if (BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) { Log.d(TAG, "Started discovery"); } if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) { Log.d(TAG, "Finished discovery"); } } };
当我在我的蓝牙适配器上调用startDiscovery(蓝牙存在并启用)时,没有任何反应,我在logcat中看不到有关BroadcastReceiver的任何内容.
你有没有遇到过那种问题?任何帮助表示赞赏:)
谢谢
确保您对 AndroidManifest.xml拥有适当的权限.特别是,要执行发现,您需要< uses-permission android:name =“android.permission.BLUETOOTH_ADMIN”/>.