[英]Android AlarManager Notification repeating
在我的Android应用中..我发出了通知..实际上我的应用是命理应用..因此,我计划每天01:00 AM从应用发送通知,通知用户可以使用新的预测...我能够发送使用警报管理器进行通知。 但是我的问题是,每当用户再次打开此通知时,通知就会反复出现。但是我需要每天发送一次通知。 用户打开通知后,无需在同一天收到通知。 如果有人可以帮助请帮助。 我在下面给出我的代码。
主要活动
AlarmManager am;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
//Context context=MainActivity.this;
am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
setRepeatingAlarm();
private void setRepeatingAlarm()
{
// TODO Auto-generated method stub
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 1);
calendar.set(Calendar.MINUTE, 00);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.AM_PM,Calendar.AM);
Intent intent = new Intent(this, AlarmReceiver.class);
// PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0,
// intent, PendingIntent.FLAG_CANCEL_CURRENT);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent,0);
// am.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis(),
// (1000 * 1000), pendingIntent);
am.set(1, System.currentTimeMillis(),pendingIntent);
System.out.println("Calling Alaram...");
}
MyReceiver
public class AlarmReceiver extends BroadcastReceiver
{
private final String SOMEACTION = "com.jocheved.alarm.ACTION";
@Override
public void onReceive(Context context, Intent intent) {
generateNotification(context,"You have new predictions");
String action = intent.getAction();
if (SOMEACTION.equals(action)) {
//do what you want here
generateNotification(context,"You have new Predictions");
}
}
@SuppressWarnings("deprecation")
private void generateNotification(Context context, String message) {
System.out.println(message+"++++++++++2");
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
// String subTitle = context.getString(R.string.app_name);
String subTitle = "You have new Predictions";
Intent notificationIntent = new Intent(context, DirectCalculation.class);
notificationIntent.putExtra("content", message);
PendingIntent intent = PendingIntent.getActivity(context, 0,notificationIntent, 0);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_SINGLE_TOP);
notification.setLatestEventInfo(context, title, subTitle, intent);
//To play the default sound with your notification:
notification.defaults |= Notification.DEFAULT_SOUND;
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notification);
}
}
问题是您在onCreate()
设置了警报,因此每次Activity启动时,它都会为当前时间设置一个警报,该警报将立即触发,启动Activity,一次又一次地设置另一个警报。 您应该使用AlarmManager#setRepeating()
方法设置警报一次,并以一天为间隔重复一次。
alarmMgr.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(),
AlarmManager.INTERVAL_DAY, intent);
您不需要在每次创建Activity时都调用setRepeatingAlarm()
,因此您需要确定如何跟踪是否设置了Activity。
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