Bluetooth
Introduction
Bluetooth is a short-range wireless technology used to implement communication between fixed and mobile devices over low-cost short-distance wireless connections. This sample describes how to discover, pair, and unpair Bluetooth devices. The display effect is as follows:
Concepts
Bluetooth: The Bluetooth module provides basic classic Bluetooth capabilities.
Required Permissions
ohos.permission.USE_BLUETOOTH
ohos.permission.LOCATION
ohos.permission.DISCOVER_BLUETOOTH
ohos.permission.MANAGE_BLUETOOTH
ohos.permission.APPROXIMATELY_LOCATION
Usage
-
Start the app. If Bluetooth is enabled, the system searches for nearby devices that can be paired. If Bluetooth is not enabled, enable it.
-
After nearby devices are detected, select the device to pair. A dialog box is displayed. Touch Pair to set up a connection with this device; touch Cancel otherwise.
-
To delete a paired device, touch the device in the paired device list. A dialog box is displayed, asking you whether to disconnect from this device. Touch OK to disconnect from this device; touch Cancel otherwise.
Constraints
-
This sample can only be run on standard-system devices.
-
This sample is based on the stage model, which is supported from API version 9.
-
This sample requires DevEco Studio 3.1 Canary1 (Build Version: 3.1.0.100) to compile and run.
-
The ohos.permission.MANAGE_BLUETOOTH permission used in this sample is of the system_basic level. You need to configure a signature for it. For details about the application permission level (APL), see Permission List.