How to check whether an activity is running or not

Question

Possible Duplicate:
Check whether activity is active

I want to show a progress dialog on the screen if the activity is showing. But when the activity window is not showing, it will not do anything. Please suggest, how do I check whether my activity is showing or not?

I've provided the solution at this post http://stackoverflow.com/a/8963867/1079001. — Samet, Jan 22 '12 at 19:27

score 17 · Accepted Answer · answered Jul 16 '10 at 07:33

Thanks for quick responses.. but i think i figured my answer. I try-catched the part where i was starting the progress dialog.

Sample code --

try {
        pd2.show();
    } catch (WindowManager.BadTokenException e) {
        // TODO: handle exception
    } catch (Exception e) {
        // TODO: handle exception
    }

So if my activity is in on the top, it will show the progress dialog, otherwise it will throw a BadTokenException which is handled using try catch block.

score 0 · Answer 2 · answered Jul 15 '10 at 13:56

0

Read up on the Activity lifecycle. Specific methods get called based on your actvities current state, whether running, whether paused, killed, etc.

answered Jul 15 '10 at 13:56

Robby Pond

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You have to start action onResume() and stop it onPause(). – Dariusz Bacinski Jul 15 '10 at 19:14

How to check whether an activity is running or not

2 Answers2