Force A MapView To Refresh?

Question

I've a big problem now, I really need some help, I've spent a week for it, but fail.

1. create a MapActivity (A)
2. start another Activity (B) from (A)
3. start another MapActivity (C) from (B)
4. back (C) -> (B)
5. back (B) -> (A)

The first MapActivity (A) is death, never be redrawn whatever I do (zoom in, zoom out, move)

How to force MapActivity (A) work again?

Any help would be appreciated,

Thanks in advance

Answer 1

did you try mapview.invalidate()?