@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
// ......
}

@Override
public void onStart() {
 super.onStart();
 Window window = getDialog().getWindow();
 window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
 WindowManager.LayoutParams windowParams = window.getAttributes();
 windowParams.dimAmount = 0.0f;
 windowParams.y = 100;
 window.setAttributes(windowParams);
 Dialog dialog = getDialog();
 if (dialog != null) {
  DisplayMetrics dm = new DisplayMetrics();
  getActivity().getWindowManager().getDefaultDisplay().getMetrics(dm);
  dialog.getWindow().setLayout((int) (dm.widthPixels * 0.9), (int) (dm.heightPixels * 0.76));
 }
}