Question

我正在使用android的Bluetoothgatt示例应用程序。设备已连接但bluetoothdevice.getname（）返回null。这只发生在micromax mobile上。（它支持Kitkat操作系统和蓝牙4.0）。有没有解决方案从设备读取数据？我可以在其他手机上获取设备名称和其他特征。

Answer 1

尝试以下代码。

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;
        }
    }

ble device bluetoothdevice.getname（）返回null

1 个答案: