블루투스 검색 관련 문제 Android

Question

블루투스로는 적어도 두 개의 장치가 작동하지 않지만 내 응용 프로그램에서는 페어링 된 장치가 하나만 있음을 확신합니다. 나는 이미 블루투스 허가를 받았고 문제가 어디 있는지 이해하지 못합니다. 그것을 찾을 수 있습니까?

//Scan Function 
void startScan(){ 

    adapter.clear();         //List View cleared 
    deviceList = btAdapter.getBondedDevices();   //Paired Device 
    for (BluetoothDevice bd : deviceList)    //Adding Paired Device 
     adapter.add(bd.getName() + "\n" + bd.getAddress()+"\t (Paired)"); 

    //Init of Broadcast Receiver 
    receiver = new BroadcastReceiver() { 
     @Override 
     public void onReceive(Context context, Intent intent) { 
      String action = intent.getAction(); 
      if(BluetoothDevice.ACTION_FOUND.equals(action)){  //Device Found 
       BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); //Extractind Device Info 
       adapter.add(device.getName()+"\t"+device.getAddress());        //Adding Device to List View 
      } 
     } 
    }; 

    //Broadcast Receiver Registration 
    IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND); 
    registerReceiver(receiver,filter); 
    btAdapter.startDiscovery();       //Scan start 

} 

Answer 1

내가 잘못하지 않으면 장치 만 보세입니다. 코드는 아래와 같아야합니다. 블루투스에 대한

IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND); 
void startScan(){ 
adapter.clear();         //List View cleared 
deviceList = btAdapter.getBondedDevices();   //Paired Device 
for (BluetoothDevice bd : deviceList)    //Adding Paired Device 
    adapter.add(bd.getName() + "\n" + bd.getAddress()+"\t (Paired)"); 
//Broadcast Receiver Registration 

점검

(!btAdapter.isEnabled()) { 
     Intent BtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); 
     startActivityForResult(BtIntent, 0); 
     Toast.makeText(BluetoothScannerActivity.this, "Turning on Bluetooth", Toast.LENGTH_LONG).show(); 
    } 
else{ 
registerReceiver(receiver,filter); 
btAdapter.startDiscovery();       //Scan start 
} 
} 

귀하의 방송이 방법은 더 나은 parctice

receiver = new BroadcastReceiver() { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     String action = intent.getAction(); 
     if(BluetoothDevice.ACTION_FOUND.equals(action)){  //Device Found 
      BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); //Extractind Device Info 
      adapter.add(device.getName()+"\t"+device.getAddress());        //Adding Device to List View 
     } 
    } 
}; 

@Override 
protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
    super.onActivityResult(requestCode, resultCode, data); 
    if (requestCode == BtIntent && resultCode == RESULT_OK) { 
    registerReceiver(receiver,filter); 
    btAdapter.startDiscovery(); 
    } 
}