General process:
* 1. Turn on Bluetooth adaptation
* 2. Obtain the status of the Bluetooth adapter and determine whether the device’s Bluetooth is available.
* 3. When it is judged that the Bluet
General process:
* 1. Turn on Bluetooth adaptation
* 2. Obtain the status of the Bluetooth adapter and determine whether the device’s Bluetooth is available.
* 3. When it is judged that the Bluet