我坚持这个问题。我已经阅读了许多关于堆栈溢出的解决方案,但这些解决方案都没有解决我的问题。
这是我的代码: 在我的主要活动中,我写了这个 -
this.context = this;
Intent alarm = new Intent(this.context, AlarmManager.class);
boolean alarmRun = (PendingIntent.getBroadcast(this.context,0,alarm, PendingIntent.FLAG_NO_CREATE) != null);
if (alarmRun == false){
PendingIntent pending = PendingIntent.getBroadcast(this.context, 0, alarm, 0);
AlarmManager alarmMgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmMgr.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime(), 15000, pending);
}
因此,第一次打开应用程序时,将调用Broadcast Receiver,即AlarmManager.java。 这是我在闹钟管理器中所做的事情: 在我的onReceive -
AlarmDB db = new AlarmDB (context);
List<Alarm> alarms = db.getAlarm();
if(alarms != null)
{
for (Alarm alarm : alarms)
{
Calendar calendar = Calendar.getInstance();
final int nowHour = Calendar.getInstance().get(Calendar.HOUR_OF_DAY);
final int nowMinute = Calendar.getInstance().get(Calendar.MINUTE);
final int nowDay = Calendar.getInstance().get(Calendar.DAY_OF_WEEK);
calendar.set(Calendar.HOUR_OF_DAY, Integer.parseInt(alarm.getAlarmHour()));
calendar.set(Calendar.MINUTE, Integer.parseInt(alarm.getStartTimeMinute()));
calendar.set(Calendar.SECOND, 00);
PendingIntent pIntent = createPendingIntent(context, alarm);
if (!(Integer.parseInt(alarm.getAlarmHour()) < nowHour) && !(Integer.parseInt(alarm.getAlarmHour()) == nowHour && Integer.parseInt(alarm.getStartTimeMinute()) <= nowMinute))
{
AlarmManager alarmMgr = (AlarmManager)c.getSystemService(Context.ALARM_SERVICE);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT)
{
alarmMgr.setExact(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pIntent);
} else {
alarmMgr.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pIntent);
}
}
}
}
这是我单独制作的createPendingIntent方法:
private static PendingIntent createPendingIntent(Context context, Alarm m) {
Intent i = new Intent(context, AlarmService.class);
i.putExtra(ID, m.getID());
i.putExtra(NAME, m.getMedName());
return PendingIntent.getService(context, m.getID(), i, PendingIntent.FLAG_UPDATE_CURRENT);
}
因此,每当当前时间与数据库中的时间匹配时,意图就会通过我的AlarmManager活动中的服务触发。请注意,在调用getService时,请求代码是数据库中的唯一ID。我的问题是尽管我正在使用一个唯一的id,每次有两个或更多的警报被触发,同时只有其中一个被成功解雇。那我该怎么做呢?
答案 0 :(得分:1)
if (alarmRun == false){
PendingIntent pending = PendingIntent.getBroadcast(this.context, 0, alarm, 0);
AlarmManager alarmMgr = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmMgr.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime(), 15000, pending);
}
调用setRepeating
将导致BroadcastReceiver
以15000毫秒的间隔多次触发。请改用setExact
。