安卓通知栏打开最后一个活动活动？ [英] Android notification bar open last active activity?

问题描述

我想我有一个问题，但我不能设法解决这个问题：（

我创建像定时器应用程序，当我启动定时器我选择去到Android主页或启动任何其他活动。

当我启动定时器我设置了通知栏图标，如果我使用其他应用程序（指从开始计时活动去），现在我需要去回到我的previously开始计时活动通过点击通知图标???

当我点击我开始一个新的实例计时器的活动，而不是previously开始计时活动！ ，如果我再单击后退按钮，它告诉我一个previously定时器活动。

问题是：如何调用previously开始活动低谷通知栏，无法启动该活动的新实例??

这就是我下面的code样品：<​​/ P>

 私人无效notificationBar（）
{
    字符串NS = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager =（NotificationManager）getSystemService（NS）;
    INT图标= R.drawable.ico;
    CharSequence的tickerText =一些称号......;
    时长= System.currentTimeMillis的（）;

    通知通知=新的通知（图标，tickerText时）;
    上下文的背景下= getApplicationContext（）;
    CharSequence的contentTitle =一些应用题;
    CharSequence的contentText =...的一些信息！;
    意图notificationIntent =新的意图（这一点，main.class）;
    PendingIntent contentIntent = PendingIntent.getActivity（此，0，notificationIntent，PendingIntent.FLAG_UPDATE_CURRENT | Notification.FLAG_AUTO_CANCEL）;

    notification.setLatestEventInfo（背景下，contentTitle，contentText，contentIntent）;


    mNotificationManager.notify（NOTIF_ID，通知）;

}
私人无效notificationClose（INT notifID）
{
    字符串NS = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager =（NotificationManager）getSystemService（NS）;
    mNotificationManager.cancel（notifID）;

}
 

解决方案

我找到了答案这是关于标志： <一href="http://stackoverflow.com/questions/2424488/android-new-intent-starts-new-instance-with-androidlaunchmodesingletop">Android:新意图（）开始与Android新实例：launchMode =＆QUOT; singleTop＆QUOT;

 意向意图=新的意图（背景下，YourActivity.class）;
intent.setFlags（Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP）;
 

I think I have a problem but I can't manage to solve it :(

I am creating like timer application and when I start timer I have option to go to android Home or start any other activity .

When I start timer I set a notification bar icon and if i use some other application (mean go from started timer activity) and now I need to go to back to my previously started timer activity by clicking on notification icon ???

When I click I am starting a new instance timer activity , not the previously started timer activity ! , and if I then click back button it show me a previously timer activity ..

Question is: How to call previously started activity trough notification bar , not to start new instance of that activity ??

This is sample of my code below :

private void notificationBar()
{
    String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
    int icon = R.drawable.ico;
    CharSequence tickerText = "some title...";
    long when = System.currentTimeMillis();

    Notification notification = new Notification(icon, tickerText, when);
    Context context = getApplicationContext();
    CharSequence contentTitle = "some app title";
    CharSequence contentText = "...some info !";
    Intent notificationIntent = new Intent(this, main.class);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent,  PendingIntent.FLAG_UPDATE_CURRENT | Notification.FLAG_AUTO_CANCEL);

    notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);


    mNotificationManager.notify(NOTIF_ID, notification);

}    
private void notificationClose(int notifID)
{
    String ns = Context.NOTIFICATION_SERVICE;
    NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
    mNotificationManager.cancel(notifID);

}

解决方案

I found an answer it's about flags : Android: new Intent() starts new instance with android:launchMode="singleTop"

Intent intent= new Intent(context, YourActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);

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