Android:如何从通知中恢复应用程序？

Question

我正在尝试将我的通知编程为恢复我的应用程序，而不是简单地启动我的应用程序的新实例......我基本上是在寻找它来做与长按主页按钮和应用程序从那里恢复。

这是我目前正在做的事情:

void notifyme(String string){

    String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager = (NotificationManager)
                                                getSystemService(ns);

    int icon = R.drawable.notification_icon;        // icon from resources
    CharSequence tickerText = string + " Program Running...";     // ticker-text
    long when = System.currentTimeMillis();         // notification time
    Context context = getApplicationContext();      // application Context
    CharSequence contentTitle = *********;  // expanded message title
    CharSequence contentText = string + " Program Running...";//expanded msg text

    Intent notificationIntent = new Intent(this, Main.class);
    PendingIntent contentIntent = PendingIntent.getActivity(
                                                this, 0, notificationIntent, 0);

    // the next two lines initialize the Notification, using the configurations
    // above
    Notification notification = new Notification(icon, tickerText, when);
    notification.setLatestEventInfo(context, contentTitle, contentText,
                                                                contentIntent);
    final int HELLO_ID = 1;
    mNotificationManager.notify(HELLO_ID, notification);
}

我猜测新的 Intent 行是问题所在...任何帮助将不胜感激!

Answer 1

你需要设置你的标志

 notification.flags = Notification.FLAG_ONGOING_EVENT | Notification.FLAG_NO_CLEAR;   
 notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);

此外，如果您永远不想重复 Activity ，请在 list 中为其指定此属性

android:launchMode="singleTask"