在Android中长时间运行后台进程的最佳方法是什么？

Question

最近，我正在开发餐厅订单管理应用程序。因此，我不得不每秒从后台服务器检查一次新订单。如果有新订单，将会有一个弹出通知。因此，我将Alarm Manager与广播接收器和意图服务一起使用来解决此问题。但是问题是有时运行良好，有时服务停止，无法运行。我该如何克服这个问题？我希望即使应用程序被终止，也要在后台运行一个连续的进程。我怎样才能做到这一点？？

我附上我到目前为止尝试过的内容：

广播接收器

class NotificationReceiver:BroadcastReceiver() {

    companion object{
        const val TAG = "RECEIVER"
        const val REQUEST_CODE=12345
    }

    override fun onReceive(p0: Context?, p1: Intent?) {
        PreferenceUtils.getInstance().initPreferences(p0!!)
        UtilMethods.printLog(TAG,"Receiver Triggered")

        val i = Intent(p0, OrderNotificationService::class.java)
        i.putExtra("foo", "bar")
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            try {
                p0.startForegroundService(i)
            } catch (e: Exception) {
                e.printStackTrace()
            }
        } else {
            try {

                p0.startService(i)
            } catch (e: Exception) {
                e.printStackTrace()
            }

        }
    }
}

Intent Service

class OrderNotificationService : IntentService("OrderNotificationService") {

    private var mAudioPlayer = AudioPlayer()
    private lateinit var mVibrator: Vibrator

    override fun onCreate() {
        super.onCreate()

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            try {
                val CHANNEL_ID = "DEMO"
                val channel = NotificationChannel(
                    CHANNEL_ID,
                    "Notification",
                    NotificationManager.IMPORTANCE_DEFAULT
                )

                (getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager).createNotificationChannel(
                    channel
                )

                val notification = NotificationCompat.Builder(this, CHANNEL_ID)
                    .setContentTitle("")
                    .setContentText("").build()

                startForeground(10, notification)
            } catch (e: Exception) {
                e.printStackTrace()
            }
        }

    }
     override fun onHandleIntent(intent: Intent?) {

        myWork()
    }
    }

向alarmManager注册

val intent = Intent(applicationContext, NotificationReceiver::class.java)
        val pIntent = PendingIntent.getBroadcast(this, NotificationReceiver.REQUEST_CODE,
            intent, PendingIntent.FLAG_UPDATE_CURRENT)
        val firstMillis = System.currentTimeMillis()
        val alarm = getSystemService(Context.ALARM_SERVICE) as AlarmManager
        alarm.setInexactRepeating(AlarmManager.RTC_WAKEUP, firstMillis, 60*1000, pIntent)

清单

    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.SET_ALARM"/>
    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <service
            android:name=".backgrounds.OrderNotificationService"
            android:exported="false"/>


        <receiver
            android:name=".backgrounds.NotificationReceiver"
            android:exported="true"/>

请帮助，高度感谢您的帮助

Answer 1

取决于您的任务优先级是否可延期。对于可延期的任务，建议使用具有所需约束的workManager。对于即时任务，我们有多种选择，我推荐带通道的协程。