ble device bluetoothdevice.getname（）返回null

Question

我正在使用android的Bluetoothgatt示例應用程序。該設備已連接，但bluetoothdevice.getname（）返回null。這隻發生在micromax手機上。 （它有Kitkat os和藍牙4.0支持）。有沒有解決方案來讀取設備中的數據？我可以在其他手機上獲取設備名稱和其他特徵。

Answer 1

請嘗試以下代碼。

public class BLEStateReceiver extends BroadcastReceiver { 
String action = intent.getAction(); 
    BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 
    if(device!= null && device.getType() != BluetoothDevice.DEVICE_TYPE_LE) 
     return; 
    if(action.equalsIgnoreCase(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) { 
     int extra = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, 345); 
     switch (extra) { 
     case BluetoothDevice.BOND_BONDED: 
      BluetoothDevice bondedDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 
      if(bondedDevice!= null) { 
       Log.d("TAG", "Bonded device name = " + bondedDevice.getName() + " Bonded Device address ="+bondedDevice.getAddress()); 
      } 
      break; 
     } 
    }