我想从AlarmManager创建一个重复闹钟,每天21:00触发,以显示通知。所以我创建了一个服务,并在清单中声明,在服务类中,我编写了一个计划重复警报的方法。
public static void setRecurringAlarm(Context context) {
AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent i = new Intent(context, NotificationService.class);
PendingIntent pi = PendingIntent.getService(context, 0, i, 0);
am.cancel(pi);
Calendar updateTime = Calendar.getInstance();
updateTime.setTimeZone(TimeZone.getDefault());
updateTime.set(Calendar.HOUR_OF_DAY, 21);
updateTime.set(Calendar.MINUTE, 00);
updateTime.set(Calendar.SECOND, 00);
am.setInexactRepeating(AlarmManager.RTC_WAKEUP,
updateTime.getTimeInMillis(),
AlarmManager.INTERVAL_FIFTEEN_MINUTES, pi);
}
(对于测试我设置延迟INTERVAL_FIFTEEN_MINUTES)。
我在我的启动画面活动的onResume()和设置为接收BOOT_COMPLETED的BroadcastReceiver中调用此方法。
@Override
protected void onResume() {
super.onResume();
NotificationService.setRecurringAlarm(this);
}
这是我的BroadcastReceicer:
public class NotificationBootReceiver extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
NotificationService.setRecurringAlarm(context);
}
}
这是我的清单:
<receiver android:name=".notification.NotificationBootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<service android:name=".notification.NotificationService" />
</application>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
问题是我每次打开应用程序并启动启动警报时触发警报并显示通知。