F1

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.google.gson.Gson;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;


public class F1 extends Fragment{

    private PullToRefreshListView pl;
    private List<Bean.DataBean> list=new ArrayList<>();
    private MyBase base;
    private int overType=1;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view=View.inflate(getActivity(),R.layout.f1_1,null);
        pl = view.findViewById(R.id.pl);
        InitData();
        RequestData();
        return view;
    }

    private void RequestData() {
        if (NetWorkUtil.isConn(getActivity())){
            MyTask task=new MyTask(new MyTask.Icallback() {
                @Override
                public void updateUiByjson(String string) {
                    Gson gson=new Gson();
                    Bean bean = gson.fromJson(string, Bean.class);
                    if (overType==1){
                        list.clear();
                    }
                    list.addAll(bean.getData());
                    setAdapter();
                    pl.onRefreshComplete();
                }


            });
            task.execute("http://www.93.gov.cn/93app/data.do?channelId=0&startNum=0");
        }
        else{
            NetWorkUtil.showNoNetWorkDlg(getActivity());
        }
    }
    private void setAdapter() {
        if (base==null){
            base = new MyBase(getActivity(),list);
            pl.setAdapter(base);
        }
        else{
            base.notifyDataSetChanged();
        }
    }
    private void InitData() {
        pl.setMode(PullToRefreshBase.Mode.BOTH);
        pl.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
            @Override
            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
                overType=1;
                RequestData();


            }

            @Override
            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
                overType=2;
                RequestData();
            }
        });
    }
}