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

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();

其中CommentsMenuFragment实现是:

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扩展。Fragment代替android.app.Fragment.