报警信号后弹出窗口 - Android

Question

我想知道 - 当AlarmManager 调用时如何显示弹出窗口？我已经创建了AlarmManager，现在我需要创建一些会显示弹出窗口以取消此警报的内容。

我的代码：

public void setAlarm(long timeInMillis){

    if(Build.VERSION.SDK_INT >= 23){
        mCalendar.set(
                mCalendar.get(Calendar.MONTH),
                mCalendar.get(Calendar.YEAR),
                mCalendar.get(Calendar.DAY_OF_YEAR),
                mCalendar.get(Calendar.HOUR_OF_DAY),
                mCalendar.get(Calendar.MINUTE)
        );
    }

    final AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

    Intent intent = new Intent(this, MyAlarm.class);
    intent.setData(currentUri);


    final PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);


    alarmManager.setExact(AlarmManager.RTC, timeInMillis, pendingIntent);
}

和

public class MyAlarm extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {

    MediaPlayer mediaPlayer = MediaPlayer.create(context, Settings.System.DEFAULT_RINGTONE_URI);


    mediaPlayer.start();

}

}

Answer 1

onReceive(context, intent) {
  /*show the dialog in this method. set the onclick so it can dismiss the alarm, 
    get the value for the alarm from the bundle. I may be wrong about this 
    but i think alarmManager has a cancel(PendingIntent operation) method that u can 
    just send in the intent and your done. 
    Call a stopMedia(context) method after the cancel in order to stop the media 
    that is playing
   */
   showDialog(context, intent)
   //Extract the play media code to a method for readability
   playMedia(context) 
}

应该可以解决你的问题

---

代码发布之前：

我们可以使用待处理的 Intent 并拥有一个处理待处理 Intent 的 Activity。或者使用处理程序来执行代码。

在任何一种情况下，创建一个对话框片段，然后使用适当的上下文来显示它。对话框片段按钮的 setOnClickListener { alarmManager.cancel }。

可能需要更多解释，具体取决于警报管理器的设置方式