Question

我试图用AlarmManager设置闹钟，但我的BroadcastReceiver永远不会被调用。这是我的片段。

    val receiver = object : BroadcastReceiver() {
        override fun onReceive(context: Context, intent: Intent) {
            //Never gets hit
        }
    }
    context.registerReceiver(receiver, IntentFilter(LOCAL_NOTIFICATION))

    val intent = Intent()
    intent.action = LOCAL_NOTIFICATION

    val alarmManager = context.getSystemService(ALARM_SERVICE) as? AlarmManager
    val pendingIntent = PendingIntent.getService(context, 1, intent, PendingIntent.FLAG_UPDATE_CURRENT)

    val calendar = Calendar.getInstance()

    calendar.add(Calendar.SECOND, 10)

    alarmManager?.set(AlarmManager.RTC_WAKEUP, calendar.timeInMillis, pendingIntent)

我已尝试在AndroidManifest.xml中注册广播接收器，但似乎没有任何效果。

Answer 1

我刚注意到我在getService()而不是PendingIntent

上呼叫getBroadcast()

更改后，它完美无缺！

Answer 2

除了首选答案外，我还在意图之前设置了意图的类别。请参见下面的示例：

val intent = Intent()
intent.action = LOCAL_NOTIFICATION
intent.setClass(context, MyBroadCastReceiver::class.java) //this line

在将意图传递给pendintIntent之前。希望对您有帮助

Kotlin AlarmManager和BroadcastReceiver无法正常工作

2 个答案: