蓝牙官方代码片段报 错
Cannot read property ‘startBluetoothDevicesDiscovery’ of null;at onBluetoothAdapterStateChange callback function
TypeError: Cannot read property ‘startBluetoothDevicesDiscovery’ of null

官方的代码片段,点击开始扫苗的时候报错
Cannot read property ‘startBluetoothDevicesDiscovery’ of null;at onBluetoothAdapterStateChange callback function
TypeError: Cannot read property ‘startBluetoothDevicesDiscovery’ of null

官方的代码片段,点击开始扫苗的时候报错