我在安卓系统中的Alarm Manager遇到了一些问题。
onCreate方法内部:
notificationCount = notificationCount + 1;
AlarmManager mgr = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Intent notificationIntent = new Intent(context,
ReminderAlarm.class);
notificationIntent.putExtra("NotifyCount", notificationCount);
PendingIntent pi = PendingIntent.getBroadcast(context,
notificationCount, notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
mgr.setInexactRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
60000+System.currentTimeMillis(), pi);
ComponentName receiver = new ComponentName(context, BootReceiver.class);
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
提醒警报类别:
public class ReminderAlarm extends BroadcastReceiver {
private NotificationManager mNotificationManager;
private Notification notification;
@Override
public void onReceive(Context context, Intent intent) {
mNotificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent
.getActivity(context, 0, new Intent(), 0);
notification = new Notification(
R.drawable.ic_launcher, "Notification",
System.currentTimeMillis());
notification
.setLatestEventInfo(context, "AlarmActivated", "Hello", contentIntent);
mNotificationManager.notify(
Integer.parseInt(intent.getExtras()
.get("NotifyCount").toString()),
notification); }}
在引导接收器类中:
public void onReceive(Context context, Intent i) {
scheduleAlarms(context);
}
static void scheduleAlarms(Context context) {
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 1);
AlarmManager mgr = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Intent notificationIntent = new Intent(context, ReminderAlarm.class);
PendingIntent pi = PendingIntent.getService(context, 0,
notificationIntent, 0);
mgr.setInexactRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(),
60000+System.currentTimeMillis(),
pi);
}
在我的清单文件中:
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<receiver android:name=".ReminderAlarm" >
</receiver>
<receiver
android:name=".BootReceiver"
android:enabled="false" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" >
</action>
</intent-filter>
</receiver>
我正在尝试将警报设置为每分钟重复一次并提示用户通知。但它是这样工作的:当我启动应用程序时,它会设置一次警报。在它提示通知一次之后,它停止每分钟的重复。
我想知道我的代码的哪一部分出错了。提前谢谢。
编辑
所以基本上,我希望闹钟经理每天早上12点重复一遍。以下是代码:
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY, 0 );
calendar.set(Calendar.MINUTE, 1);
notificationCount = notificationCount + 1;
AlarmManager mgr = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Intent notificationIntent = new Intent(context,
ReminderAlarm.class);
PendingIntent pi = PendingIntent.getBroadcast(context,
notificationCount, notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
mgr.setRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pi);
ComponentName receiver = new ComponentName(context, BootReceiver.class);
PackageManager pm = context.getPackageManager();
pm.setComponentEnabledSetting(receiver,
PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
PackageManager.DONT_KILL_APP);
那么,通过这样设置重复,44年后它还会像以前一样运行吗?还是每天凌晨12点重复?
setInexactRepeating()
方法中的第三个参数是以毫秒为单位的间隔。您将其设置为自1970年1月1日00:00:00.0 UTC以来经过的毫秒数加上60000,使下一个计划事件在大约44年后发生。更改您的代码如下:
mgr.setInexactRepeating(AlarmManager.RTC_WAKEUP,
calendar.getTimeInMillis(), 60000, pi);