Determining the previous activity class

Question

When entering a preference activity or an option screen, I want to be able to know what was the previous activity. Is there some built in method or class to know which activity was before the current activity/ preference activity you are in?.

score 2 · Accepted Answer · answered May 30 '13 at 13:50

2

You can use the putExtra attribute of the Intent to pass the name of the Activity.

Calling Activity,

Intent intent = new Intent(this, next.class);
intent.putExtra("activity","first");
startActivity(intent);

Next Activity,

Intent intent = getIntent();
String activity = intent.getStringExtra("activity");

Now in the string activity you will get the name from which Activity it has came.

answered May 30 '13 at 13:50

Adam Arold

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From: http://stackoverflow.com/questions/8119526/android-get-previous-activity – Adam Arold May 30 '13 at 13:50
I was thinking the same thing. So I guess there is no method/class. – wesdfgfgd May 30 '13 at 13:52
No built in method sadly. – Adam Arold May 30 '13 at 13:53
What about the back stack? – Phil Haigh May 30 '13 at 14:02

score 0 · Answer 2 · answered May 30 '13 at 21:45

You could do that without a Bundle...

Activity A starts Activity B over this Method of Activity B.

public class B extends Activity{

     private static String previousActivity;

     public static start(Context ctx, String prevAct){
         previousActivity = prevAct;
         Intent i = new Intent(ctx,currentActivity.class);
         ctx.startActivity(i);
     }
...

Determining the previous activity class

2 Answers2