自

Android Lollipop 5.0(API21)发布以来,现在有一个API可以正式显示/隐藏警报图标.

有关此

here的更多信息,请参阅stackoverflow.

多亏了它,我设法现在在5.0 Android设备上显示警报图标.不幸的是,如果警报被禁用,我无法解除/隐藏/取消图标.

这就是我正在做的事情(Stackoverflow和Android股票报警的几次尝试混合)：

public static void setNextAlert(final Context context) {

final Alarm alarm = calculateNextAlert(context);

AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

Intent intent = new Intent(ALARM_ALERT_ACTION);

PendingIntent sender = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);

int flags = alarm == null ? PendingIntent.FLAG_NO_CREATE : 0;

PendingIntent operation = PendingIntent.getBroadcast(context, 0 /* requestCode */, intent, flags);

if (alarm != null)

{

if(UtilsAlarm.isLollipopOrLater())

{

PendingIntent viewIntent = PendingIntent.getActivity(context, alarm.id, intent, PendingIntent.FLAG_UPDATE_CURRENT);

AlarmManager.AlarmClockInfo info = new AlarmManager.AlarmClockInfo(alarm.time, viewIntent);

am.setAlarmClock(info, operation);

}

else

{

if(UtilsAlarm.isKitKatOrLater())

{

am.setExact(AlarmManager.RTC_WAKEUP, alarm.time, sender);

}

else

{

am.set(AlarmManager.RTC_WAKEUP, alarm.time, sender);

}

setStatusBarIcon(context, true);

}

Calendar c = Calendar.getInstance();

c.setTimeInMillis(alarm.time);

String timeString = formatDayAndTime(context, c);

saveNextAlarm(context, timeString);

}

else

{

if(UtilsAlarm.isLollipopOrLater())

{

am.cancel(operation);

}

else

{

am.cancel(sender);

setStatusBarIcon(context, false);

}

saveNextAlarm(context, "");

}

Intent i = new Intent(NEXT_ALARM_TIME_SET);

context.sendBroadcast(i); }

因此,如果我们的版本低于Lollipop,它仍然可以正常运行.但是,对于Lollipop设备,启用警报时会显示图标,但如果您禁用它(并且没有启用其他警报),则当前会从下一个警报(预期结果)中取消该图标,但图标仍然存在于通知栏.

有人知道这个问题吗？

Thansk的帮助.