步骤1：清单代码
添加权限

<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />

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在应用程序类中

<receiver
            android:name=".BootReceiver"
            android:enabled="true"
            android:exported="true">
            <intent-filter>
                <category android:name="android.intent.category.DEFAULT" />

                <action android:name="android.intent.action.BOOT_COMPLETED" />
                <action android:name="android.intent.action.QUICKBOOT_POWERON" />
                <action android:name="com.htc.intent.action.QUICKBOOT_POWERON" />  
            </intent-filter>
        </receiver>

       <service
            android:name=".AppStartService"
            android:enabled="true"
            android:exported="true"
            android:stopWithTask="false" />

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步骤2：获取用户授予的覆盖权限，或

adb shell pm grant com.example.appstart android.permission.SYSTEM_ALERT_WINDOW

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第三步：BootReceiver

class BootReceiver : BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent?) {
        Log.i(TAG, "onReceive: boot received ${intent?.action}")
        val serviceIntent = Intent(context, AppStartService::class.java)
        ContextCompat.startForegroundService(context, serviceIntent)
    }

    companion object {
        private const val TAG = "BootReceiver"
    }
}

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步骤4：服务代码

class AppStartService: Service() {

    override fun onBind(intent: Intent?): IBinder? {
        return null
    }

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        return START_STICKY
    }

    override fun onCreate() {
        super.onCreate()

        startForeground(1, createNotification())

        GlobalScope.launch {
            withContext(Dispatchers.Main) {
                try {
                    val intent = Intent(this@AppStartService, MainActivity::class.java)
                    intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
                    startActivity(intent)
                } catch (ex: Exception) {
                    Log.e(TAG, "onCreate: ", ex)
                }
            }
        }

    }

    private fun createNotification(): Notification {
        val serviceChannel = NotificationChannel(
            CHANNEL_ID,
            "${getString(R.string.app_name)} Service",
            NotificationManager.IMPORTANCE_DEFAULT
        )
        val manager = getSystemService(
            NotificationManager::class.java
        )
        manager.createNotificationChannel(serviceChannel)

        return NotificationCompat.Builder(this, CHANNEL_ID)
            .setContentTitle("${getString(R.string.app_name)} Service")
            .setSilent(true)
            .setContentText("Please restart this device if this service is not running")
            .setSmallIcon(R.mipmap.ic_launcher)
            .build()
    }

    companion object {
        private const val TAG = "AppStartService"
        private const val CHANNEL_ID = "app-start-service"
    }

}

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在我的情况下，BootReceiver类接收引导完成动作。所以，为我工作！确保引导完成动作在特定设备上工作。