在旋转设备时,在下面的代码中(为了清楚起见,缩写),适配器变量接收null,并且gridView变量接收null。
任何人都可以帮助我在旋转设备屏幕后保留适配器和gridView吗?
感谢。
(抱歉英语不好)
public class FlickrXmlFragment extends Fragment {
private GridView gridView;
private FlickrGridViewAdapter adapter;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//...
View view = darkInflater.inflate(R.layout.fragment_flickr_xml,
container, false);
//...
gridView = (GridView) view.findViewById(R.id.flickr_gridView);
return view;
}
class FlickrPhotoSearchThread extends
AsyncTask<String, Void, List<FlickrImagem>> {
@Override
protected void onPreExecute() { //... process... }
@Override
protected List<FlickrImagem> doInBackground(String... params) { //process... }
@Override
protected void onPostExecute(List<FlickrImagem> result) {
//...
adapter = new FlickrGridViewAdapter(getActivity(), 0, result);
gridView.setAdapter(adapter);
adapter.notifyDataSetChanged();
//...
}
}
}
答案 0 :(得分:-1)
处理您的活动的方向更改。
请参阅:http://developer.android.com/guide/topics/manifest/activity-element.html#config
声明你的活动:
<activity android:name=".MyActivity"
android:configChanges="orientation|keyboardHidden"
android:label="@string/app_name">