Bluetoothデバイスを発見しペアリングするには

Question

Javaを使用してAndroid Bluetoothデバイスを検出してペアリングする方法は？私が参照するコードはありますか？

Answer 1

次のコードは、デバイスとデータをデバイスにペアリングするために必要なクライアントとサーバーを実装する必要がある場合、ペアになったデバイスとペアになっていないデバイスのリストを検出します。 BluetoothChatSampleこれはあなたにアイデアを与えるでしょう。

private Set<BluetoothDevice> pairedDevices; 
public static ArrayList<Object> BondedDeviceList; 
public static ArrayList<Object> NewDeviceList; 

public void makeDiscoverable() 
{ 
    discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); 
    discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); 
    activity.startActivity(discoverableIntent); 
} 

//It will Add the paired device in the BondedDeviceList 
public void queryPairedDevice(){ 
    pairedDevices = mBluetoothAdapter.getBondedDevices(); 

    // If there are paired devices 
    if(pairedDevices==null) 
    { 
     //No Bonded Devices 

    }else 
    { 
     if (pairedDevices.size() > 0) { 
      // Loop through paired devices 
      for (BluetoothDevice device : pairedDevices) { 
       BondedDeviceList.add(device); 
      } 
      BondedDeviceList.add("End"); 
     } 
    } 
} 

//Broadcast Receiver will find the Available devices and the discovery finished 
private final BroadcastReceiver mReceiver = new BroadcastReceiver() { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     String action = intent.getAction(); 

     // When discovery finds a device 
     if (BluetoothDevice.ACTION_FOUND.equals(action.trim())) { 
      // 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) { 
       NewDeviceList.add(device); 
      } 
      // When discovery is finished, change the Activity title 
     } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) { 
      if (NewDeviceList.isEmpty() == true) { 
       String noDevices = "No Devices"; 
       NewDeviceList.add(noDevices); 
      } 
      System.out.println("Discovery Finished!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); 
      NewDeviceList.add("End"); 
     } 
    } 
}; 

//This is query for the bluetooth devices 
public void queryDevices(){ 
    actionFoundFilter = new IntentFilter(BluetoothDevice.ACTION_FOUND); 
    activity.registerReceiver(mReceiver, actionFoundFilter); 
    // Don't forget to unregister during onDestroy 

    discoveryFinishedFilter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED); 
    activity.registerReceiver(mReceiver, discoveryFinishedFilter); 
    // Don't forget to unregister during onDestroy 
    queryPairedDevice(); 
    mBluetoothAdapter.startDiscovery(); 
} 


//Unregister the receivers 
public void unregisterReceiver() { 
    // Make sure we're not doing discovery anymore 
    if (mBluetoothAdapter != null) { 
      mBluetoothAdapter.cancelDiscovery(); 
    } 
    // Unregister broadcast listeners 
    activity.unregisterReceiver(mReceiver); 
} 

乾杯。