完美 解決fragment中listview資料丟失問題和問題分析
阿新 • • 發佈：2019-02-13
public class MainpageFind extends Fragment {
private ListViewForScrollView mListview;
private FindShareAdatpter shareAdatpter = null;
private List<TaskFindInfo> tastlistdata=null;
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
if ( mListview.getAdapter()==null) {
if (shareAdatpter==null) {
shareAdatpter = new FindShareAdatpter(getActivity());
new HttpRest(getActivity(), mhandler, 1).get_findActivityList();//網路請求載入資料
}else{
showlist(tastlistdata);
}
}
}
private Handler mhandler = new Handler(Looper.getMainLooper()) {
@Override
public void handleMessage(Message msg) {
if (msg.what == 1) {
List<TaskFindInfo> taskinfos = (List<TaskFindInfo>) msg.obj;
tastlistdata=taskinfos;
showlist(taskinfos);
}
}
};
private void showlist(List<TaskFindInfo> tastlist) {
shareAdatpter.SetList(tastlist);
mListview.setAdapter(shareAdatpter);
shareAdatpter.notifyDataSetChanged();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.mainpage3, null);
bbstv = (TextView) view.findViewById(R.id.bbstv);
helptv = (TextView) view.findViewById(R.id.helptv);
helptv.setOnClickListener(this);
bbstv.setOnClickListener(this);
mListview = view.findViewById(R.id.actionlist);
return view;
}
}