0

我试图用http://www.davidgyoungtech.com/2017/08/07/beacon-detection-with-android-8#the-new-way-fast-detections唤醒我的前台服务

预期行为

查看第一个信标并将 PendingIntent 发送到正在使用 BeaconConsumer 启动我的前台服务的 BroadcastReceiver。

实际行为

在打瞌睡模式之后,什么都没有被调用。

重现此行为的步骤

使用此处的相同代码:http ://www.davidgyoungtech.com/2017/08/07/beacon-detection-with-android-8#the-new-way-fast-detections 比将手机置于打盹模式并返回终端:

adb shell dumpsys deviceidle force-idle

adb shell dumpsys deviceidle 解除强制

广播接收器代码:

class BluetoothScanReceiver: BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
    val bleCallbackType = intent.getIntExtra(BluetoothLeScanner.EXTRA_CALLBACK_TYPE, -1)
    if (bleCallbackType != -1) {
        val scanResults = intent.getParcelableArrayListExtra<Parcelable>(
                BluetoothLeScanner.EXTRA_LIST_SCAN_RESULT)
        println("xxxxx BluetoothScanReceiver onreceive ")
        context.startBeaconScanning()
    }
}

}

Ble扫描仪的初始化

val settings = ScanSettings.Builder().setScanMode(ScanSettings.SCAN_MODE_LOW_POWER).build()
val bluetoothManager = applicationContext.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager
val bluetoothAdapter = bluetoothManager.adapter
val i = Intent(applicationContext, BluetoothScanReceiver::class.java)
val pendingIntent = PendingIntent.getBroadcast(applicationContext, 0, i, FLAG_UPDATE_CURRENT)
val scanner = bluetoothAdapter.bluetoothLeScanner
scanner.startScan(null, settings, pendingIntent)

移动设备型号和操作系统版本

诺基亚 5 - 安卓 8.1

即使我的应用程序被杀死/处于打盹模式/打盹模式后,当我看到第一个信标时,我应该怎么做才能启动我的前台服务?

谢谢

4

0 回答 0