Java 如何膨胀XML文件？

有一个错误，它要求更平坦，而不是整数。请帮助

请试试这个

public class signInFragment extends Fragment {
  @Nullable
  @Override
  public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
      @Nullable Bundle savedInstanceState) {
    return super.onCreateView(R.layout.fragment_signin, container, savedInstanceState);
  }
}

---

我想你是在处理碎片，你可以照这个做

 override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        return inflater.inflate(R.layout. fragment_signin, container, false)
    }

---

不是int，我刚刚编辑了我的答案。试试看

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = null;

    view = inflater.inflate(R.layout.fragment_signin, container, false);


    // find the view present inside
    ((TextView) view.findViewById(R.id.tvLineNum));

    // Handle onClick events for the view
    view.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            // your code
        }
    });
    return view;
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.your_layout, container, false);

    return view;
}