Android 在片段中设置微调器
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Setting spinners in fragment
提问by Nick
I am trying to set the values for my spinner from a string Array in one of my fragments in the onCreateViewin my public final class Manual extends Fragment:
我想设置为从字符串数组我的微调值在我的一个片段 onCreateView在我的public final class Manual extends Fragment：
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.manual, container, false);
String [] values =
{"Time at Residence","Under 6 months","6-12 months","1-2 years","2-4 years","4-8 years","8-15 years","Over 15 years",};
Spinner spinner = (Spinner) v.findViewById(R.id.spinner1);
ArrayAdapter<String> LTRadapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, values);
LTRadapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
spinner.setAdapter(LTRadapter);
return inflater.inflate(R.layout.manual, container, false);
}
I get no errors with my code, however it doesn't set the spinner. The spinner remains blank with no values. Any ideas on why my code isn't setting the spinner?
我的代码没有错误，但是它没有设置微调器。微调器保持空白，没有值。关于为什么我的代码没有设置微调器的任何想法？
回答by Nick
The problem was I was returning a new view, not the one I set. I had to return v;and it worked fine.
问题是我返回的是一个新视图，而不是我设置的视图。我不得不这样做return v;，而且效果很好。
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.manual, container, false);
String [] values =
{"Time at Residence","Under 6 months","6-12 months","1-2 years","2-4 years","4-8 years","8-15 years","Over 15 years",};
Spinner spinner = (Spinner) v.findViewById(R.id.spinner1);
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, values);
adapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
spinner.setAdapter(adapter);
return v;
}
