蓝牙事件返回奇怪的蓝牙设备类：240404

Question

我正在使用广播接收器来尝试查找蓝牙耳机何时 connect/disconnected 到 android 设备。

 val filter = IntentFilter()
        filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED)
        filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECT_REQUESTED)
        filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED)

而我是这样处理事件的：

   device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE)
   val major = device?.bluetoothClass?.majorDeviceClass;
   val bluetoothClass = device?.bluetoothClass ?: return

我得到的是

major as 1024（即 BluetoothClass.Device.Major.AUDIO_VIDEO 是正确的）
bluetoothClass.deviceClass 作为 240404 但 it is not listed as any of the recognized Bluetooth Devices.

我是不是用错了属性来比较？

Answer 1

我真傻，我是比较错误的东西。我要比较的是 deviceClass property inside bluetoothClass

蓝牙事件返回奇怪的蓝牙设备类：240404

Weird bluetooth deviceClass is being returned by bluetooth event: 240404

android

bluetooth