未显示Android JobScheduler通知

Question

我正尝试在将来安排通知，但是由于某些原因，该作业未执行。我正在使用android / emui 9在华为p20 pro上进行测试]

我在这里添加我的工作：

events.forEach {
        val sdf = SimpleDateFormat("dd.MM.yyyy HH:mm", Locale.GERMANY)
        val date = Calendar.getInstance()
        date.time = sdf.parse(it.date)
        if (date.time > Calendar.getInstance().time) {
            //only schedule notification when the event is in future
            NotificationHelper.scheduleNotification(context!!, date.time.time, it)
        } else {
            println(false)
        }
    }

这是我的scheduleNotification（）方法，在其中创建作业并对其进行调度：

fun scheduleNotification(context: Context, triggerTime: Long, eventItem: EventItem) {
        val time = triggerTime.minus(Calendar.getInstance().timeInMillis)
        if (time > 0) {
            val pb = PersistableBundle()
            pb.putInt("eventId", eventItem.eventId)
            pb.putString("eventName", eventItem.name)
            pb.putString("eventTime", eventItem.date)
            val jobInfo =
                JobInfo.Builder(eventItem.eventId, ComponentName(context, MyNotificationPublisher::class.java))
                    .setPersisted(true)
                    .setRequiredNetworkType(JobInfo.NETWORK_TYPE_ANY)
                    .setOverrideDeadline(time)
                    .setMinimumLatency(time)
                    .setExtras(pb)
                    .build()
            val jobScheduler = context.applicationContext
                .getSystemService(JOB_SCHEDULER_SERVICE) as JobScheduler
            jobScheduler.schedule(jobInfo)
        }
    }

和应显示通知的MyNotificationPublisher：

class MyNotificationPublisher : JobService() {

    override fun onStopJob(params: JobParameters?): Boolean {
        return true
    }

    override fun onStartJob(params: JobParameters?): Boolean {
        val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        val bundle = params?.extras ?: PersistableBundle.EMPTY
        val notificationId = bundle.getInt("eventId")
        val eventName = bundle.getString("eventName", "") +
                " at " +
                bundle.getString("eventTime", "")

        val notification = buildNotification(this, eventName, notificationId)
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            notificationManager.createNotificationChannel(
                NotificationChannel(
                    NOTIFICATION_CHANNEL,
                    NOTIFICATION_CHANNEL,
                    NotificationManager.IMPORTANCE_HIGH
                )
            )
        }
        notificationManager.notify(notificationId, notification)
        return true
    }

    private fun buildNotification(context: Context, eventName: String, id: Int): Notification? {
        val notificationIntent = Intent(context, MyNotificationPublisher::class.java)
        val notification = Notification.Builder(context)
            .setContentTitle("a new event has triggered")
            .setContentText(eventName)
            .setSmallIcon(R.drawable.ic_stat_baseline_date_range_black_48)

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            notification.setChannelId(NOTIFICATION_CHANNEL)
        }

        notificationIntent.putExtra(NOTIFICATION, notification.build())
        notificationIntent.putExtra(NOTIFICATION_ID, id)
        return notification.build()
    }

    companion object {
        const val NOTIFICATION_ID = "notification_id"
        const val NOTIFICATION = "notification"
        const val NOTIFICATION_CHANNEL = "Test Channel"
    }
}

Answer 1

您知道解决方案了吗？我现在真的很为此挣扎。我花了整整2天的时间来完善自己的闹钟。但是总有一些小故障。