Android 通知未在单击时打开活动

我的应用程序中有AlarmNotification，每次它出现时，我都想单击它并从后台打开父活动/唤醒应用程序。为什么它不起作用？它将在特定时间显示通知，以便报警部件按预期工作，但不会在单击时执行任何操作

首先，我必须创建通知：

private fun createNotification(){
        val vibrateFreq = longArrayOf(1000, 1000, 1000, 1000, 1000)
        nb = NotificationCompat.Builder(a, channelId)
            .setSmallIcon(R.drawable.logo)
            .setContentTitle(title)
            .setContentText(text)
            .setVibrate(vibrateFreq)
            .setStyle(NotificationCompat.BigTextStyle().bigText(textLong))
            .setAutoCancel(true)
    }

class AlarmReceiver: BroadcastReceiver(){

    companion object{
        const val NOTIFICATION_ID = "20288855447-99899"
        const val NOTIFICATION = "alarmNotify"
    }

    override fun onReceive(context: Context?, intent: Intent?) {
        val notificationManager = context?.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

        val notification: Notification? = intent?.getParcelableExtra(NOTIFICATION)
        val id = intent?.getIntExtra(NOTIFICATION_ID, 0)
        id?.let {
            notificationManager.notify(id, notification)
        }
    }
}

然后我需要注册报警以在特定时间显示通知：

private fun createAlarm(){
        val pInt = app.createAlarmPendingIntent(a, nb)
        val cal = Calendar.getInstance()
        cal.add(Calendar.MINUTE, delta)
        app.aManager.set(AlarmManager.RTC_WAKEUP, cal.timeInMillis, pInt)
    }

fun createAlarmPendingIntent(a: Activity, nb: NotificationCompat.Builder?): PendingIntent{
        val nInt = Intent(a, AlarmReceiver::class.java)
        nInt.putExtra(
            AlarmReceiver.NOTIFICATION_ID,
            AlarmNotification.NOTIFICATION_NAME
        )
        nInt.putExtra(AlarmReceiver.NOTIFICATION, nb?.build())

        val pInt = PendingIntent.getBroadcast(
            a,
            0,
            nInt,
            PendingIntent.FLAG_UPDATE_CURRENT
        )
        return pInt
    }

然后它将触发

BroadcastReceiver

打开通知：

private fun createNotification(){
        val vibrateFreq = longArrayOf(1000, 1000, 1000, 1000, 1000)
        nb = NotificationCompat.Builder(a, channelId)
            .setSmallIcon(R.drawable.logo)
            .setContentTitle(title)
            .setContentText(text)
            .setVibrate(vibrateFreq)
            .setStyle(NotificationCompat.BigTextStyle().bigText(textLong))
            .setAutoCancel(true)
    }

class AlarmReceiver: BroadcastReceiver(){

    companion object{
        const val NOTIFICATION_ID = "20288855447-99899"
        const val NOTIFICATION = "alarmNotify"
    }

    override fun onReceive(context: Context?, intent: Intent?) {
        val notificationManager = context?.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

        val notification: Notification? = intent?.getParcelableExtra(NOTIFICATION)
        val id = intent?.getIntExtra(NOTIFICATION_ID, 0)
        id?.let {
            notificationManager.notify(id, notification)
        }
    }
}

---

首先，您需要声明如下意图：

Intent notificationClickIntent = new Intent("intent_id")

然后您需要声明一个挂起的意图，如下所示：

PendingIntent pendingIntent = PendingIntent.getActivity(context, REQUEST_CODE, notificationClickIntent, PendingIntent.FLAG_UPDATE_CURRENT);

在通知生成器中，添加集合contentIntent：

NotificationCompat.Builder builder = new NotificationCompat.Builder(context, CHANNEL_ID)
                .setSmallIcon(R.drawable.ic_notification)
                .setContentTitle(notificationData.getTitle())
                .setContentText(notificationData.getBody())
                .setPriority(NotificationCompat.PRIORITY_HIGH)
                **.setContentIntent(notificationClickPendingIntent)**
                .addAction(R.drawable.ic_notification, context.getString(R.string.turn_on_alarms), notificationButtonClickPendingIntent)
                .setAutoCancel(true)

在您的清单中，对要打开的活动声明一个意图过滤器（因为我记得我无法使它对启动程序活动起作用，也许它可以起作用，我只是放弃了）

最后但并非最不重要的一点是，如果活动尚未打开，notification onClick将触发onCreate方法，如果它已打开，则将触发onNewIntent

---

希望这有帮助：）

从哪里调用/传递家长活动/唤醒应用程序？默认情况下，将触发主页/启动器屏幕。您需要根据参数打开所需的屏幕。每次启动程序活动中都会创建此通知。它假设每次都会打开启动器活动。我必须把这个

pendingent pendingent=pendingent.getActivity（上下文、请求代码、通知ClickIntent、pendingent.FLAG_UPDATE_CURRENT）放在当前位置

进入到

onReceive

方法中的意图中，它就起作用了。因为第一个PendingEvent用于触发BroadcastReceiver的通知，而第二个PendingEvent必须是活动意图。