Android notification bar open last active activity?

Question

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);

}

score 14 · Accepted Answer · edited May 23 '17 at 12:23

14

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);

edited May 23 '17 at 12:23

Community

1
1

answered Nov 04 '10 at 20:31

Nezir

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score 2 · Answer 2 · answered Nov 03 '10 at 16:31

2

I'm not certain I understand what you mean.

I suppose you could add an extra in the intent to specify which notification exactly was used to invoke your app. Does this help at all?

answered Nov 03 '10 at 16:31

Emmanuel

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Hi , Manuel I have this code and it's almost work as supposed . Only thing is that click on notification bar does not open/show previously started activity ? it open new instance of that activity ? Is it clear now ? have activity timer , timer started i create notification icon , i do some other application and after while I click on notification bar and I need to open a timer activity which time ticking , not a new instance of fresh activity :) – Nezir Nov 03 '10 at 16:40
2

In that case, check out the launchMode attribute for activity: http://developer.android.com/guide/topics/manifest/activity-element.html#lmode I think you want to use singleTop. Does this help? – Emmanuel Nov 04 '10 at 15:25

Android notification bar open last active activity?

2 Answers2

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