android View not attached to window manager

After a fight with this issue, I finally end up with this workaround:

/**
 * Dismiss {@link ProgressDialog} with check for nullability and SDK version
 *
 * @param dialog instance of {@link ProgressDialog} to dismiss
 */
public void dismissProgressDialog(ProgressDialog dialog) {
    if (dialog != null && dialog.isShowing()) {

            //get the Context object that was used to great the dialog
            Context context = ((ContextWrapper) dialog.getContext()).getBaseContext();

            // if the Context used here was an activity AND it hasn't been finished or destroyed
            // then dismiss it
            if (context instanceof Activity) {

                // Api >=17
                if (!((Activity) context).isFinishing() {
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
                        if (!((Activity) context).isDestroyed()) {
                            dismissWithExceptionHandling(dialog);
                        }
                    } else { 
                        // Api < 17. Unfortunately cannot check for isDestroyed()
                        dismissWithExceptionHandling(dialog);
                    }
                }
            } else
                // if the Context used wasn't an Activity, then dismiss it too
                dismissWithExceptionHandling(dialog);
        }
        dialog = null;
    }
}

/**
 * Dismiss {@link ProgressDialog} with try catch
 *
 * @param dialog instance of {@link ProgressDialog} to dismiss
 */
public void dismissWithExceptionHandling(ProgressDialog dialog) {
    try {
        dialog.dismiss();
    } catch (final IllegalArgumentException e) {
        // Do nothing.
    } catch (final Exception e) {
        // Do nothing.
    } finally {
        dialog = null;
    }
}

Sometimes, good exception handling works well if there wasn't a better solution for this issue.

I had this issue where on a screen orientation change, the activity finished before the AsyncTask with the progress dialog completed. I seemed to resolve this by setting the dialog to null onPause() and then checking this in the AsyncTask before dismissing.

@Override
public void onPause() {
    super.onPause();

    if ((mDialog != null) && mDialog.isShowing())
        mDialog.dismiss();
    mDialog = null;
}

... in my AsyncTask:

protected void onPreExecute() {
    mDialog = ProgressDialog.show(mContext, "", "Saving changes...",
            true);
}

protected void onPostExecute(Object result) {
   if ((mDialog != null) && mDialog.isShowing()) { 
        mDialog.dismiss();
   }
}