Question

我尝试制作在特定时间推送一次的离线推送通知。以下是我的日历和AlarmManager设置：

Intent intent = new Intent(getApplicationContext(), Notification_receiver.class);

    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(), 101, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(), 102, intent, PendingIntent.FLAG_UPDATE_CURRENT);


    Calendar push1 = Calendar.getInstance();
    Calendar push2 = Calendar.getInstance();

    push1.set(2017, Calendar.JULY, 1);
    push1.set(Calendar.HOUR_OF_DAY, 20);
    push1.set(Calendar.MINUTE, 22);
    push1.set(Calendar.SECOND, 30);

    push2.set(2017, Calendar.JULY, 1);
    push2.set(Calendar.HOUR_OF_DAY, 20);
    push2.set(Calendar.MINUTE, 28);
    push2.set(Calendar.SECOND, 30);


    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, push1.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent1);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, push2.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent2);

我的通知类：

public class Notification_receiver extends BroadcastReceiver{


@Override
public void onReceive(Context context, Intent intent) {

    NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

    Intent repeating_intent = new Intent(context, RepeatingActivity.class);
    repeating_intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    PendingIntent pendingIntent1 = PendingIntent.getActivity(context, 101, repeating_intent, PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getActivity(context, 102, repeating_intent, PendingIntent.FLAG_UPDATE_CURRENT);

    NotificationCompat.Builder builder1 = new NotificationCompat.Builder(context).setContentIntent(pendingIntent1)
            .setSmallIcon(R.drawable.onusicijadi_icon)
            .setContentTitle("FIRST")
            .setContentText("FIRST NOTIFICATION")
            .setDefaults(Notification.DEFAULT_ALL)
            .setAutoCancel(true);

    notificationManager.notify(103, builder1.build());

    NotificationCompat.Builder builder2 = new NotificationCompat.Builder(context).setContentIntent(pendingIntent2)
            .setSmallIcon(R.drawable.onusicijadi_icon)
            .setContentTitle("SECOND")
            .setContentText("SECOND NOTIFICATION")
            .setDefaults(Notification.DEFAULT_ALL)
            .setAutoCancel(true);

    notificationManager.notify(104, builder2.build());

}}

RepeatingActivity.class只是：

public class RepeatingActivity extends AppCompatActivity{


@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

     setContentView(R.layout.activity_program);

}

此代码在20:22和20:28发送通知，显然我希望它分开。例如，一个通知在20:22进行，另一个在20:28进行。在为期3天的节日期间，我将需要大约30个通知。

Answer 1

你正在使用哪种api？

注意：从API 19开始，所有重复警报都不准确。如果你的应用程序需要精确的交付时间，然后必须使用一次性确切的警报，每次重新安排，如上所述。遗产 targetSdkVersion早于API 19的应用程序将继续发出所有警报，包括重复警报，确切地对待。

您可以在AlarmManager docs上找到更多信息，如果您仍在使用AlarmManager，则解决方案可能是setExact或setExactAndAllowWhileIdle。

使用时请小心，如果您在短时间内收到多个通知，则可以考虑使用服务。

在特定时间推送多个通知（AlarmManager，NotificationManager） - Android

1 个答案: