38

我正在开发一个要连接蓝牙设备的应用程序，主要问题是我不希望用户输入所需的引脚，而是应用程序应该自己完成...我没有任何与连接相关的问题...只想要由应用程序自己插入并完成密码验证过程。

我发现以下代码我确定它正在工作但不确定如何在此代码中添加引脚？

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());
        }
    }

有谁知道如何在上面的代码或任何类似的代码中输入 pin 来解决问题.. 谢谢

4

8 回答 8

27

在进行编程配对时，如何避免或关闭 Android 的蓝牙配对通知？

这似乎给了你答案，输入密码等等。它涉及在收到消息时发送 .setPin() 。

于 2013-06-21T06:42:47.267 回答
12

所以，我有这个问题，如果有人需要在 android 4.4.2 中工作的答案。

 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);

以及接收器的代码。

  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();
                }
            }
        }
    }

并在清单文件中。

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

和广播接收器。

 <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>
于 2015-05-21T00:31:42.057 回答
7

上面已经回答了如何设置密码（这对我有帮助）。然而，我在下面分享了适用于 Android 6 的简单代码：

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());
}
于 2018-03-04T03:51:58.540 回答
5

试试这个代码：

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);

我希望这有帮助

参考： http: //pastebin.com/N8dR4Aa1

于 2013-06-28T00:35:30.950 回答
4

注册一个BluetoothDevice.ACTION_PAIRING_REQUEST接收器 onCreate()

val pairingRequestFilter = IntentFilter(BluetoothDevice.ACTION_PAIRING_REQUEST)
        registerReceiver(pairingReceiver, pairingRequestFilter)

在接收器上设置您的密码setPin()并拨打电话abortBroadcast()

val PAIRING_PIN=1234

private var pairingReceiver = object : BroadcastReceiver() {
        override fun onReceive(context: Context?, intent: Intent?) {
            val action = intent!!.action
            if (BluetoothDevice.ACTION_PAIRING_REQUEST == action) {
                val device: BluetoothDevice? =intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE)
                val type =intent.getIntExtra(BluetoothDevice.EXTRA_PAIRING_VARIANT, BluetoothDevice.ERROR)
                if (type == BluetoothDevice.PAIRING_VARIANT_PIN) {
                    device?.setPin(PAIRING_PIN.toByteArray())
                    abortBroadcast()
                }
            }
        }
    }

不要忘记取消注册接收器onDestroy() 

override fun onDestroy() {
        super.onDestroy()
        unregisterReceiver(pairingReceiver)
    }

如果它对您不起作用，请尝试将高优先级设置为接收器

val pairingRequestFilter = IntentFilter(BluetoothDevice.ACTION_PAIRING_REQUEST)          
pairingRequestFilter.priority = IntentFilter.SYSTEM_HIGH_PRIORITY - 1
            registerReceiver(pairingReceiver, pairingRequestFilter)

您还可以注册接收器BluetoothDevice.ACTION_BOND_STATE_CHANGED以读取配对状态

val filter = IntentFilter(BluetoothDevice.ACTION_BOND_STATE_CHANGED)
        registerReceiver(receiver, filter)
于 2020-01-27T05:11:26.527 回答
1

尝试这个，

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);
于 2013-06-28T05:25:17.400 回答
0 
    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();
    }
于 2017-09-25T13:35:25.020 回答
0

bluetoothDevice.createBond 方法，可用于配对

要检查配对状态，您必须注册广播接收器 BluetoothDevice.ACTION_BOND_STATE_CHANGED

在您的接收器类中，您可以检查 blueToothDevice.getBondState

于 2019-08-16T07:07:31.833 回答