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当我尝试在使用构造函数的类中设置视图时,出现java java.lang.NullPointerException错误。我看不到我在做什么错在这里。这里是我的代码:在构造函数Android中设置视图带有片段
public class HomeFragment extends Fragment {
public HomeFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
// Define webview stuff
DataSelector dataSelector = new DataSelector(rootView);
dataSelector.getData();
-
public class DataSelector {
public View mRootView;
public DataSelector(View RootView){
mRootView = RootView;
}
TextView resultView = (TextView) mRootView.findViewById(R.id.result);
public void getData(){
...
你能修改你的帖子并添加正确答案吗?我尝试了很多..不知道怎样正确地理解它:S认为我仍然在做错事,尽管我尝试了你所说的话! – Markinson