Dialog disappearance may reduce user experience

[Chou95]

Hi, dear developers!

There exist a dialog disappearance after screen rotation. I think that screen rotation shouldn't do damange to the UI state. The re-created UI should be the same as before rotation.

I think it is not hard to save the UI state of these dialogs by saving the return value of dialog.isShowing(). In this way, you can decide whether to re-open these dialogs when the phone rotation and UI recreation occur. This may improve the user experience, do you think so?

details:
before screen rotation:

after screen rotation: