Starting from activity B, how can I go back to activity A without killing B so that I can go back to B without creating it agan?

Question

Is it possible to go back from Activity B to Activity A without killing Activity B so that you can go back to B again without creating a new one?

Answer 1

Call startActivity() with an Intent that points to A. By default, this will create a fresh instance of A; if that's not what you want, add FLAG_ACTIVITY_REORDER_TO_FRONT to the Intent.

From the user's standpoint, though, you're likely to confuse them, as this will scramble the back stack. I would recommend that you find some other solution for whatever problem you are perceiving (e.g., use a better process-level cache, if your problem is loading data).