DialogFragment IllegalStateException: Can not perform this action after onSaveIn

public class AllowStateLossDialogFragment extends DialogFragment {
    @Override
    public void show(@NonNull FragmentManager manager, @Nullable String tag) {
        try {
            FragmentManager temp = null;
            // super 里有变量需要赋值
            super.show(temp, tag);
        } catch (Exception e) {
        }

        FragmentTransaction ft = manager.beginTransaction();
        ft.add(this, tag);
        ft.commitAllowingStateLoss();
    }
}