我使用片段在onCreateView中使用什么而不是findViewById

Question

我是Android开发的新手，当然还有Fragments。

我有下面的代码，我想在片段中使用findViewById，但因为它在onCreateView上有错误

 public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    return inflater.inflate(R.layout.activity_main,null);

        x2=(Button)getView().findViewById (R.id.btnX2);
        x2.setText(Html.fromHtml(getResources().getString(R.string.X2)));
        showResult = (EditText)getView().findViewById(R.id.display);

    }

Answer 1

你可以试试这个。

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v= inflater.inflate(R.layout.activity_main,container,false);
        x2=(Button)v.findViewById (R.id.btnX2);
        x2.setText(Html.fromHtml(getResources().getString(R.string.X2)));
        showResult = (EditText)v.findViewById(R.id.display);
        return v;
    }

Answer 2

试试这个会帮助你

 View view=inflater.inflate(R.layout.activity_main,null);
    x2=(Button)view.findViewById (R.id.btnX2);
    x2.setText(Html.fromHtml(getResources().getString(R.string.X2)));
    showResult = (EditText)view.findViewById(R.id.display);
    return view;