如何重复 AlarmManager 启动 AsyncTask? [英] How can repeating AlarmManager start AsyncTask?

问题描述

我通常编写此代码以使用 AlarmManager 启动服务.

I usually write this code to start a service with AlarmManager.

    intent = new Intent(getActivity(), someservice.class);
    pendingNotificationIntent = PendingIntent.getService(getActivity(), 0, intent, 0);
    alarm = (AlarmManager) getActivity().getSystemService(getActivity().ALARM_SERVICE);
    int interval = 30 * 1000;
    long now = Calendar.getInstance().getTimeInMillis();
    alarm.setRepeating(AlarmManager.RTC_WAKEUP, now, interval, pendingNotificationIntent);

我的 AsyncTask 是一个私有类，我在其中注册了 AlarmManager 对象.

My AsyncTask is a private class where I register AlarmManager object.

如何使用 AlarmManager 对象调用 AsyncTask 而不是服务?

How can I call the AsyncTask instead of a service using AlarmManager object?

附注.如果有更好的方法让 AsyncTask 每 X 秒/分钟运行一次，请提出！

PS. If there is a better way to run AsyncTask every X seconds/minutes, please propose it!

推荐答案

您可以这样做:

1.) 定义一个静态意图(intent1)并在设置时间时使用它传递给AlarmManager.所以现在无论何时，都会流逝；AlarmManager 会通过发送 intent1 来通知.

1.) Define a static intent (intent1) and use it to pass to AlarmManager when setting time. So now when ever time, will lapse; AlarmManager will notify by sending intent1.

2.) 在 Intent1 的 BroadcastReceiver 的 onReceive 上，启动一个 AsyncTask.在 AsyncTask 结束时，为 AlarmManager 设置下一次.

2.) On onReceive of BroadcastReceiver of intent1, start a AsyncTask. At end end of AsyncTask, set the next time for AlarmManager.

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