报警信号后的java弹出窗口

Question

我想知道-如何在AlarmManager调用时显示弹出窗口？我已经创建了AlarmManager现在我需要创建一些东西来显示弹出窗口以取消此警报

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);
}

及

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) 
}

这应该能解决你的问题

---

在代码发布之前：

我们可以使用挂起的意图，也可以让一个活动来处理挂起的意图。或者使用处理程序来执行代码

在这两种情况下，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}

根据报警管理器的设置方式，可能需要更多的解释