android– 如何在Fragment中为微调器设置ArrayAdapter

概述我试图在片段中向spinner添加项目.但我对上下文有疑问.因为在片段中没有上下文.我在这里怎么样publicclassDetailFragextendsFragment{@OverridepublicViewonCreateView(LayoutInflaterinflater,ViewGroupcontainer,BundlesavedInstanceState){

我试图在片段中向spinner添加项目.但我对上下文有疑问.因为在片段中没有上下文.我在这里怎么样

public class DetailFrag extends Fragment {    @OverrIDe    public VIEw onCreateVIEw(LayoutInflater inflater, VIEwGroup container, Bundle savedInstanceState) {        VIEw scrollVIEw = inflater.inflate(R.layout.myscrollvIEw , container, false);               linearLayout linearLayout = (linearLayout) scrollVIEw.findVIEwByID(R.ID.mylayout1);        for (int i=0; i<questionList.size(); i++) {            VIEw verticallinearLayout = inflater.inflate(R.layout.myListrow,  null);            VIEw horizontallinearLaoyout = verticallinearLayout.findVIEwByID(R.ID.questionRow);            TextVIEw tv = (TextVIEw) horizontallinearLaoyout.findVIEwByID(R.ID.question);            Spinner spinner = (Spinner) horizontallinearLaoyout.findVIEwByID(R.ID.spinner);            //Problem: how to define this in fragment createFromresource(this,...)            ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromresource(                    this, R.array.options_array, androID.R.layout.simple_spinner_item);            EditText editText = (EditText) verticallinearLayout.findVIEwByID(R.ID.txtMultiline);            String question = questionList.get(i).question;            tv.setID(i);            tv.setText(i + question);            spinner.setID(i);            editText.setID(i);            linearLayout.addVIEw(verticallinearLayout);                  }               return scrollVIEw;      } //end of onCreateVIEw()} //end of class DetailFrag

解决方法:

在片段中,上下文不能按照您在代码中的预期方式获得.而不是这个,使用以下内容：

ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromresource(    getActivity().getBaseContext(),    R.array.options_array,    androID.R.layout.simple_spinner_item);

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