Android 12 新蓝牙权限

蓝牙是我们应用程序的主要依赖项。因此，我们已经尝试实现新的 Android 12 蓝牙权限。我们唯一的资源是Android 开发人员 Android 12 中的新蓝牙权限。就是说添加权限

“android.permission.BLUETOOTH_CONNECT”

“android.permission.BLUETOOTH_SCAN”

我添加并获得了两者的运行时权限，当然还有位置（通常为 12 之前））。
我的代码库没有其他变化。应该？我不知道。所以，问题是我的应用程序找不到 BLE 设备。我找不到原因。

您有什么建议或资源吗？

100% 工作解决方案：不需要任何 3rd 方插件

清单代码：

<!--BLUETOOTH PERMISSION-->
    <!-- Request legacy Bluetooth permissions on older devices. -->
    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <!-- Needed only if your app looks for Bluetooth devices.
             If your app doesn't use Bluetooth scan results to derive physical
             location information, you can strongly assert that your app
             doesn't derive physical location. -->
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
    <!-- Needed only if your app makes the device discoverable to Bluetooth
      devices. -->
    <uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
    <!-- Needed only if your app communicates with already-paired Bluetooth
           devices. -->
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
    <!--bibo01 : hardware option-->
    <uses-feature android:name="android.hardware.bluetooth" android:required="false"/>
    <uses-feature android:name="android.hardware.bluetooth_le" android:required="false"/>

科特林代码： //检查android12+

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
                            requestMultiplePermissions.launch(arrayOf(
                                Manifest.permission.BLUETOOTH_SCAN,
                                Manifest.permission.BLUETOOTH_CONNECT))
                        }
                        else{
                            val enableBtIntent = Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)
                            requestBluetooth.launch(enableBtIntent)
                        }
....................................................

private var requestBluetooth = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
                if (result.resultCode == RESULT_OK) {
                    //granted
                }else{
                    //deny
                }
 }

private val requestMultiplePermissions =
                registerForActivityResult(ActivityResultContracts.RequestMultiplePermissions()) { permissions ->
                    permissions.entries.forEach {
                        Log.d("test006", "${it.key} = ${it.value}")
                    }
}

阅读更多：https://developer.android.com/guide/topics/connectivity/bluetooth/permissions