Abstract: A Bluetooth connection method includes: establishing a connection with a Bluetooth device and binding with the Bluetooth device to obtain one or more services supported by the Bluetooth device; obtaining a device class of the Bluetooth device, and selecting a service to be connected from the services; transmitting an audio sink service request based on the selected service to the Bluetooth device, and receiving a response to the audio sink service request; and upon receiving an audio source service request from the Bluetooth device, generating and transmitting a response data packet to the Bluetooth device; transmitting an encryption instruction to the Bluetooth device to perform an encryption process; in response to determining completion of the encryption process, starting a connection to an audio sink service of the Bluetooth device; and in response to determining success of the connection, starting audio transmission to the Bluetooth device.

Abstract: The present disclosure relates to a BLUETOOTH scanning control method, a mobile terminal, and a storage medium. The method comprises: after receiving a BLUETOOTH scanning instruction, setting filter attribute information, wherein the filter attribute information is device attribute information of a BLUETOOTH device, which information is to be obtained by means of filtering in the present BLUETOOTH scanning operation; and acquiring the filter attribute information, performing BLUETOOTH scanning according to the filter attribute information, and displaying BLUETOOTH device information obtained by means of scanning. In the present embodiment, during BLUETOOTH scanning, a BLUETOOTH scanning operation is performed according to BLUETOOTH device information corresponding to the set filter attribute information, so as to obtain a BLUETOOTH device obtained by means of filtering and display the BLUETOOTH devices obtained by means of filtering, thereby reducing a scanning period, and achieving the aim of fast scanning.

Abstract: Provided is a method and device of Bluetooth adaptive volume adjustment. The method includes: obtaining an adjustable maximum volume value of the Bluetooth audio device and a user adjustable maximum volume value, after a smart terminal being connected with a Bluetooth audio device; obtaining a volume value indicated by a volume adjustment instruction, after receiving the volume adjustment instruction; calculating a volume value of the smart terminal according to the volume value indicated by the volume adjustment instruction, calculating a volume value of the Bluetooth audio device according to the volume value indicated by the volume adjustment instruction, the adjustable maximum volume value of the Bluetooth audio device, the user adjustable maximum volume value; setting the volume of the Bluetooth audio device according to the obtained volume value of the Bluetooth audio device, setting the volume of the smart terminal according to the obtained volume value of the smart terminal.

Abstract: Provided is a method and device of Bluetooth adaptive volume adjustment. The method includes: obtaining an adjustable maximum volume value of the Bluetooth audio device and a user adjustable maximum volume value, after a smart terminal being connected with a Bluetooth audio device; obtaining a volume value indicated by a volume adjustment instruction, after receiving the volume adjustment instruction; calculating a volume value of the smart terminal according to the volume value indicated by the volume adjustment instruction, calculating a volume value of the Bluetooth audio device according to the volume value indicated by the volume adjustment instruction, the adjustable maximum volume value of the Bluetooth audio device, the user adjustable maximum volume value; setting the volume of the Bluetooth audio device according to the obtained volume value of the Bluetooth audio device, setting the volume of the smart terminal according to the obtained volume value of the smart terminal.