错误：找不到符号方法findviewbyid

debugcn 发表于 Dev

Nolags

我有一个带有2个带有listView的tabLayout的tabLayout的应用程序，我想从带有Json的URLConnection加载内容，但是在Fragment.java文件中，我发现了错误：无法解析方法'findViewByID（int）'。

   public class Fragment1 extends Fragment implements URLConnectionResponse {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        CanteenProvider canProv = new CanteenProvider();
        canProv.delegate = this;
        canProv.getDishes(getActivity().getApplicationContext());
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.activity_canteen_tab_mensa, container, false);
    }

    @Override
    public void processFinish(List<?> output) {
        ListView canteenList = (ListView) findViewById(R.id.mensalistView);
        ArrayList<Dish> canteenItemContent = new ArrayList<Dish>();
        canteenItemContent = (ArrayList<Dish>)output;

        CanteenListAdapter canteenAdapter = new CanteenListAdapter(canteenItemContent, this);
        canteenList.setAdapter(canteenAdapter);
    }


}

穆罕默德·瓦利德（Muhammad Waleed）

在堆栈溢出时遵循此答案

 private ListView canteenList=null;
  private View view = null;
 @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        view = inflater.inflate(R.layout.activity_canteen_tab_mensa, container, false);
        canteenList = (ListView)view.findViewById(R.id.mensalistView);
        return view;
    }

    @Override
    public void processFinish(List<?> output) {

        ArrayList<Dish> canteenItemContent = new ArrayList<Dish>();
        canteenItemContent = (ArrayList<Dish>)output;

        CanteenListAdapter canteenAdapter = new CanteenListAdapter(canteenItemContent, view.getContext());
        canteenList.setAdapter(canteenAdapter);
    }

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