Question

我正在尝试构建一个简单的应用程序，它只会在特定的日期/时间向设备发送通知。我已经能够让通知部分工作，但似乎无法得到这一天＆amp;时间问题解决了。有什么想法吗？

import android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

public class NotificationsActivity extends Activity {
    int notificationID = 1;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    public void onClick(View view) {
        displayNotification();
    }

    protected void displayNotification()
    {

        Intent i = new Intent(this, NotificationView.class);
        i.putExtra("notificationID", notificationID);

        PendingIntent pendingIntent =
            PendingIntent.getActivity(this, 0, i, 0);

        NotificationManager nm = (NotificationManager)
            getSystemService(NOTIFICATION_SERVICE); 

        Notification notif = new Notification(
            R.drawable.ic_launcher, 
            "Reminder: Meeting starts in 5 minutes",
            System.currentTimeMillis());


        CharSequence from = "System Alarm";
        CharSequence message = "Meeting with customer at 3pm...";

        notif.setLatestEventInfo(this, from, message, pendingIntent);


        notif.vibrate = new long[] { 100, 250, 100, 500};
        nm.notify(notificationID, notif);        
    }

}

Answer 1

您需要使用AlarmManager来安排这些事件。然后，从回调中，您将显示通知。

参见例如Creating a Notification at a particular time through Alarm Manager

小心，因为当设备重新启动时，AlarManager将被清除（如果需要，您可能需要重新注册然后在启动时完成）。

Answer 2

请参阅此链接Notification in Android Using AlarmManager, BoradCastReceiver & Services

它可能对你有帮助。

时间敏感通知

2 个答案: