Spinner drop-down list and screen orientation change problem

Question

I have a problem with a spinner drop down list and changing orientations.

In my activity, I display a dialog in which I have two spinners. When the dialog is shown t

Answer 1

The answer is here: app crashes when alert dialog is open and phone(emulator) changes its orientation . Look at answer from MegaMind to help resolve this.

Answer 2

I had an idea to prevent orientation changes when dialog with spinner is displayed, but found that there is no reliable way to do that. The best solution that I found is to replace spinner with a button.

Answer 3

This occurs because onDetachedFromWindow() does not get called on the spinner when dialog.dismiss() is called. The solution for this is to create a simple custom spinner class the exposes this method.

 public class DialogSpinner extends Spinner {

     public DialogSpinner(Context context, AttributeSet attrs) {
         super(context, attrs);
     }

     @Override
     public void onDetachedFromWindow() {
         super.onDetachedFromWindow();
     }
 }

Now the onDetachedFromWindow() method is publicly available. Then in your dialog class override the onPause() method.

 @Override
 public void onPause() {
     mYourSpinner.onDetachedFromWindow();
     super.onPause();
 }

It's definately a workaround, but it seems to do the trick.