Fragment用findViewById得到空值解决办法

来源：互联网发布：mac怎样新建文件夹编辑：程序博客网时间：2024/06/06 00:40

参考：http://www.cnblogs.com/Ken-Cai/p/4186660.html

public class CompanyListFragment  extends Fragment {　　private Activity activity;　  private ListView companyListView;　　@Override　　public View onCreateView(LayoutInflater infalter, ViewGroup container, Bundle savedInstanceState) {　　　　View view = infalter.inflate(R.layout.companylist_for_sport, container, false);　　　　companyListView = (ListView)view.findViewById(R.id.companyListView);　　　　return view;　　}}

注意1: 是在 onCreateView 中

注意2: 是 view.findViewById 而不是 activity.findViewById

为了能在别的方法中调用，最好写成：

public class CompanyListFragment  extends Fragment {　　private Activity activity;　  private ListView companyListView;    private View view;　　@Override　　public View onCreateView(LayoutInflater infalter, ViewGroup container, Bundle savedInstanceState) {　　　　view = infalter.inflate(R.layout.companylist_for_sport, container, false);　　　　companyListView = (ListView)view.findViewById(R.id.companyListView);　　　　return view;　　}    public void mothedA(){        ListView = (ListView)view.findViewById(R.id.companyListView);    }}

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