本文介绍了在Android中每小时设置重复的警报管理器的处理方法,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
我想每小时在android中获取位置。为此,我使用警报管理器并设置每小时重复警报,只想在修复时间之后即8 AM和12 PM写入文件。 我在设置警报管理器时遇到问题,虽然我每隔一小时设置一次,但它在1/2小时内执行。
I want to fetch location every hours in android . For that i use alarm manager and set repeated alarm for every hour and just want to write into file after fix time i.e at 8 AM and 12 PM . I got a problem in setting alarm manager , while i set for every one hour but it execute in 1/2 hour .
on button click i start service : serviceButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent myIntent = new Intent(AutoMainActivity.this, TrackerService.class); pendingIntent = PendingIntent.getService(AutoMainActivity.this, 0, myIntent, 0); AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE); alarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, ALARM_TRIGGER_AT_TIME, 3600000, pendingIntent); //3600000 1hrs finish(); } });服务等级如下:
Tracker Service.class String FINAL_STRING; SharedPreferences pref; static final int START_TIME = 8; static final int MID_TIME = 12; java.util.Date systemDates = Calendar.getInstance().getTime(); int hour = Calendar.getInstance().get(Calendar.HOUR_OF_DAY); if(hour == START_TIME) { edit.putString("smsdata", FINAL_STRING); editmit(); //sendSms(START_TAG+pref.getString("smsdata", "")); edit.putString("smsdata", ""); editmit(); }else { System.out.println("currentdate:"+simpleDateFormat.toString()); System.out.println("current_time:"+currentTime); Editor edit = pref.edit(); edit.putString("smsdata", pref.getString("smsdata", "")+FINAL_STRING+"#"); editmit(); if(hour==MID_TIME) { //sendSms(START_TAG+pref.getString("smsdata", "")); generateNoteOnSD("\n"+START_TAG+pref.getString("smsdata", "")); edit.putString("smsdata", ""); editmit(); System.out.println("mid time"); } }我执行时该服务每30分钟启动一次。但是我想每60分钟一次。
When i execute this the service start on every 30min. but i want on every 60min.
推荐答案setInexactRepeating()是其无法按预期工作的原因。尝试以下操作:
setInexactRepeating() is the reason why it is not working as you expected. Try following:
AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE); am.setRepeating(AlarmManager.RTC_WAKEUP, firstStart, interval, pendingIntent );更多推荐
在Android中每小时设置重复的警报管理器
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