如何以編程方式配對藍牙設備Android

Question

我正在開發一個應用程序，我想要連接藍牙設備的主要問題是我不希望用戶輸入所需的引腳而不是應用程序應該由他自己做...我不有任何連接相關的問題......只想插入並完成應用程序本身的引腳認證過程。

我發現下面的代碼我相信它是工作，但不知道如何在此代碼中添加PIN？

private void pairDevice(BluetoothDevice device) { 
     try { 
      Log.d("pairDevice()", "Start Pairing..."); 
      Method m = device.getClass().getMethod("createBond", (Class[]) null); 
      m.invoke(device, (Object[]) null); 
      Log.d("pairDevice()", "Pairing finished."); 
     } catch (Exception e) { 
      Log.e("pairDevice()", e.getMessage()); 
     } 
    } 

有誰知道如何在上面的代碼或任何類似的代碼來解決問題進入銷.. 謝謝

Answer 1

How can I avoid or dismiss Android's Bluetooth pairing notification when I am doing programmatic pairing?

這似乎給你答案，用針進入和所有。它涉及每當你得到消息時發送.setPin（）。

Answer 2

試試這個代碼：

public void pairDevice(BluetoothDevice device) 
{ 
    String ACTION_PAIRING_REQUEST = "android.bluetooth.device.action.PAIRING_REQUEST"; 
    Intent intent = new Intent(ACTION_PAIRING_REQUEST); 
    String EXTRA_DEVICE = "android.bluetooth.device.extra.DEVICE"; 
    intent.putExtra(EXTRA_DEVICE, device); 
    String EXTRA_PAIRING_VARIANT = "android.bluetooth.device.extra.PAIRING_VARIANT"; 
    int PAIRING_VARIANT_PIN = 0; 
    intent.putExtra(EXTRA_PAIRING_VARIANT, PAIRING_VARIANT_PIN); 
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 
    context.startActivity(intent); 
} 

Intent intent = new Intent(BluetoothDevice.ACTION_PAIRING_REQUEST); 
intent.putExtra(EXTRA_DEVICE, device); 
int PAIRING_VARIANT_PIN = 272; 
intent.putExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, PAIRING_VARIANT_PIN); 
sendBroadcast(intent); 

Intent intent = new Intent(Settings.ACTION_BLUETOOTH_SETTINGS); 
startActivityForResult(intent, REQUEST_PAIR_DEVICE); 

我希望這有助於

參考：http://pastebin.com/N8dR4Aa1

Answer 3

試試這個，

BluetoothDevice device = intent.getParcelableExtra("android.bluetooth.device.extra.DEVICE"); 
device.getClass().getMethod("setPairingConfirmation", boolean.class).invoke(device, true); 
device.getClass().getMethod("cancelPairingUserInput", boolean.class).invoke(device); 

Answer 4

所以，我有這個問題，如果有人需要這個工作在android 4.4.2的答案。

IntentFilter filter = new IntentFilter(
       "android.bluetooth.device.action.PAIRING_REQUEST"); 


     /* 
     * Registering a new BTBroadcast receiver from the Main Activity context 
     * with pairing request event 
     */ 
     registerReceiver(
       new PairingRequest(), filter); 

而接收器的代碼。

public static class PairingRequest extends BroadcastReceiver { 
     public PairingRequest() { 
      super(); 
     } 

     @Override 
     public void onReceive(Context context, Intent intent) { 
      if (intent.getAction().equals("android.bluetooth.device.action.PAIRING_REQUEST")) { 
       try { 
        BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 
        int pin=intent.getIntExtra("android.bluetooth.device.extra.PAIRING_KEY", 0); 
        //the pin in case you need to accept for an specific pin 
        Log.d("PIN", " " + intent.getIntExtra("android.bluetooth.device.extra.PAIRING_KEY",0)); 
        //maybe you look for a name or address 
        Log.d("Bonded", device.getName()); 
        byte[] pinBytes; 
        pinBytes = (""+pin).getBytes("UTF-8"); 
        device.setPin(pinBytes); 
        //setPairing confirmation if neeeded 
        device.setPairingConfirmation(true); 
       } catch (Exception e) { 
        e.printStackTrace(); 
       } 
      } 
     } 
    } 

並在清單文件中。

<uses-permission android:name="android.permission.BLUETOOTH" /> 
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> 

而且廣播接收器。

<receiver android:name=".MainActivity$PairingRequest"> 
       <intent-filter> 
        <action android:name="android.bluetooth.device.action.PAIRING_REQUEST" /> 
        <action android:name="android.bluetooth.device.action.PAIRING_CANCEL" /> 
       </intent-filter> 
</receiver> 

Answer 5

BluetoothSocket bluetoothSocket = null; 
    try { 
     bluetoothSocket = device.createRfcommSocketToServiceRecord(UUID.fromString(UUID_DIVING)); 
    } catch (IOException e) { 
     Log.i("Bluetooth", "IOException = " + e.getMessage()); 
     e.printStackTrace(); 
    } 

    try { 
     byte[] pin = (byte[]) BluetoothDevice.class.getMethod("convertPinToBytes", String.class).invoke(BluetoothDevice.class, "0000"); 
     Method m = device.getClass().getMethod("setPin", byte[].class); 
     m.invoke(device, (Object) pin); 
     device.getClass().getMethod("setPairingConfirmation", boolean.class).invoke(device, true); 
    } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) { 
     Log.i("Bluetooth", "IOException = " + e.getMessage()); 
     e.printStackTrace(); 
    } 

    try { 
     if (bluetoothSocket != null) { 
      bluetoothSocket.connect(); 
      Log.i("Bluetooth", "bluetoothSocket.connect() "); 
      InputStream inputStream = bluetoothSocket.getInputStream(); 
      OutputStream outputStream = bluetoothSocket.getOutputStream(); 
     } 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 

Answer 6

如何設置PIN碼上面已經回答（這幫助我）。然而，我分享了我的簡單代碼，下面與Android 6合作：

BluetoothAdapter mBTA = BluetoothAdapter.getDefaultAdapter(); 
if (mBTA.isDiscovering()) mBTA.cancelDiscovery(); 
mBTA.startDiscovery(); 
... 

/** In a broadcast receiver: */ 

if (BluetoothDevice.ACTION_FOUND.equals(action)) { // One device found. 

    BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 
    Log.d(TAG, "Start Pairing... with: " + device.getName()); 
    device.createBond(); 
} 

// If you want to auto-input the pin#: 
else if (BluetoothDevice.ACTION_PAIRING_REQUEST.equals(action)){ 

        BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 
        device.setPin("1234".getBytes()); 
}