FragmentTransaction 类型中的方法 add(int, Fragment, String) 不适用于参数 (int, Fragment, String)

Question

我有这个问题..

The method add(int, Fragment, String) in the type FragmentTransaction is not applicable for the arguments (int, Fragment, String)

在FragenmtActivity 中使用以下代码时

getSupportFragmentManager().beginTransaction().add(com.korovyansk.android.slideout.R.id.slideout_placeholder,  ((Fragment)new CommentsMenuFragment()), "menu").commit();

CommentsMenuFragment 实现在哪里：

public class CommentsMenuFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_comment, container, false);
        ListView lvComments = (ListView) view.findViewById(R.id.lvComments);



        return view;
    }

}

Answer 1

检查您的 CommentsMenuFragment 是否从 android.support.v4.app.Fragment 而不是 android.app.Fragment 扩展。