如何取消AlarmManager

本文介绍了如何取消AlarmManager的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我已经设置了如下alarmManager:

I have setup an alarmManager as follows:

Intent intent = new Intent(TopActivity.this, RecordActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); intent.putExtra(Utils.KEY_RECORD_TIME, recordLength); intent.putExtra(Utils.KEY_REC_START_TIME, start); saveTimeAndLength(start, recordLength); PendingIntent pintent = PendingIntent.getActivity(TopActivity.this, 0, intent, 0); AlarmManager alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE); alarm.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pintent);

以下内容应该取消它，但它总是失败.我想念什么?

The following is supposed to cancel it, but it always fail. What am I missing?

AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE); Intent intent = new Intent(TopActivity.this, RecordActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); intent.putExtra(Utils.KEY_RECORD_TIME, start); intent.putExtra(Utils.KEY_REC_START_TIME, recordLength); PendingIntent pintent = PendingIntent.getActivity(TopActivity.this, 0, intent, 0); try { alarmManager.cancel(pintent); Log.e(TAG, "Cancelling all pending intents"); } catch (Exception e) { Log.e(TAG, "AlarmManager update was not canceled. " + e.toString()); }

我已经在StackOverflow上阅读了很多答案，但仍然无法找出问题所在. 预先感谢！

I have read lots of answers on StackOverflow but still could not figure out what's the problem. Thanks in advance!

推荐答案

我将在此处发布答案，希望这可以帮助其他人节省一些时间. 在两侧添加标志PendingIntent.FLAG_UPDATE_CURRENT可以解决此问题.

I will post my answer here hoping that would help others saving some time. Somehow adding the flag PendingIntent.FLAG_UPDATE_CURRENT in both sides solve the problem.

PendingIntent pintent = PendingIntent.getActivity(TopActivity.this, 0, intent,PendingIntent.FLAG_UPDATE_CURRENT);

解决了问题. 设置闹钟

solved the problem. Setting Alarm

Intent intent = new Intent(TopActivity.this, RecordActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); intent.putExtra(Utils.KEY_RECORD_TIME, recordLength); intent.putExtra(Utils.KEY_REC_START_TIME, start); saveTimeAndLength(start, recordLength); PendingIntent pintent = PendingIntent.getActivity(TopActivity.this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); AlarmManager alarm = (AlarmManager)getSystemService(Context.ALARM_SERVICE); alarm.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pintent);

取消警报

AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE); Intent intent = new Intent(TopActivity.this, RecordActivity.class); PendingIntent pintent = PendingIntent.getActivity(TopActivity.this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT); try { alarmManager.cancel(pintent); Log.e(TAG, "Cancelling all pending intents"); } catch (Exception e) { Log.e(TAG, "AlarmManager update was not canceled. " + e.toString()); }