Activity has leaked window that was originally added

Question

What is this error, and why does it happen?

05-17 18:24:57.069: ERROR/WindowManager(18850): Activity com.mypkg.myP has leaked window com.android.internal.pol         


        

Answer 1

I have another solution for this, and would like to know if it seems valid to you: instead of dismissing in the onDestroy, which seems to be the leading solution, I'm extending ProgressDialog...

public class MyProgressDialog extends ProgressDialog {

  private boolean isDismissed;

  public MyProgressDialog(Context context) {
    super(context);
  }

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

  @Override
  public void dismiss() {
    if (isDismissed) {
      return;
    }
    try {
      super.dismiss();
    } catch (IllegalArgumentException e) {
      // ignore
    }
    isDismissed = true;
  }

This is preferable, AFAIC, because you don't have to hold the progress dialog as a member, just fire(show) and forget