Android通知不会弹出

Question

我正在尝试创建一个简单的Android程序（在Kotlin中），该程序应在10秒后显示通知。打开快速设置并向下滚动后，我可以看到通知，但不会自动在顶部弹出。

这是相关代码：

lateinit var notificationManager: NotificationManager
lateinit var notificationChannel: NotificationChannel
lateinit var builder: Notification.Builder
val channelId = "com.example.vicky.notificationexample"
val description = "Test notification"

class MyIntentService : IntentService("MyIntentService") {
    override fun onHandleIntent(intent: Intent?) {
        notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
        val intent = Intent (this, LauncherActivity::class.java)
        val pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
        notificationChannel = NotificationChannel(channelId, description, NotificationManager.IMPORTANCE_HIGH)
        notificationChannel.enableLights(true)
        notificationChannel.lightColor = Color.GREEN
        notificationChannel.enableVibration(true)
        notificationManager.createNotificationChannel(notificationChannel)

        builder = Notification.Builder(this, channelId)
            .setContentTitle("Some Title")
            .setContentText("Some text")
            .setSmallIcon(R.drawable.ic_launcher_foreground)
            .setLargeIcon(BitmapFactory.decodeResource(this.resources, R.mipmap.ic_launcher_round))
            .setContentIntent(pendingIntent)

        Thread.sleep(10000)
        notificationManager.notify(1234, builder.build())
    }
}

Answer 1

我已通过打开“浮动通知”解决了该问题