pullto多条目

//主页面+PullTo多条目

public class TabFragment extends Fragment {
private PullToRefreshListView listview;
private String url=“http://172.17.8.100/movieApi/movie/v1/findReleaseMovieList?page=1&count=10”;
private List<MyBean.ResultBean> list=new ArrayList<>();
private int page;
private MyAdapter adapter;
private UserDao dao;

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.tabfragment, container, false);
    listview = view.findViewById(R.id.listview);
    listview.setMode(PullToRefreshListView.Mode.BOTH);
    adapter = new MyAdapter(getActivity(), list);
    listview.setAdapter(adapter);
    dao = new UserDao(getActivity());
    initData(page);
    listview.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {
        @Override
        public void onPullDownToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
            list.clear();
            page=1;
            initData(page);
        }

        @Override
        public void onPullUpToRefresh(PullToRefreshBase<ListView> pullToRefreshBase) {
            page++;
            initData(page);
        }
    });
    return view;
}

private void initData(int page) {
    String s = url + page;
    Cursor query = dao.query("user", null, null, null, null, null, null);

//查询
if (MyWork.isconn(getActivity())){
new MyAsy().execute(s);
}else {
if (query.moveToFirst()){
while (query.moveToNext()){
String name1 = query.getString(query.getColumnIndexOrThrow(“name”));
String iamge1 = query.getString(query.getColumnIndexOrThrow(“image”));
list.add(new MyBean.ResultBean(iamge1,name1));
}
adapter.notifyDataSetChanged();
}
}

}

class MyAsy extends AsyncTask<String,Void,String>{

    @Override
    protected String doInBackground(String... strings) {
        String s = MyWork.getgson(strings[0]);
        return s;
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
        Gson gson = new Gson();
        MyBean myBean = gson.fromJson(s, MyBean.class);
        List<MyBean.ResultBean> result = myBean.getResult();
        list.addAll(result);
        ***//添加数据库***
        for (int i=0;i<result.size();i++){
           dao.insert(list.get(i).getName(),list.get(i).getImageUrl());
        }
        adapter.notifyDataSetChanged();
        listview.onRefreshComplete();

    }
}

}

对应的布局

<com.handmark.pulltorefresh.library.PullToRefreshListView
android:id="@+id/listview"
android:layout_width=“match_parent”
android:layout_height=“match_parent”></com.handmark.pulltorefresh.library.PullToRefreshListView>

**

//适配器

**
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.nostra13.universalimageloader.core.ImageLoader;

import java.util.List;

public class MyAdapter extends BaseAdapter {
private Context context;
private List<MyBean.ResultBean> list;

public MyAdapter(Context context, List<MyBean.ResultBean> list) {
    this.context = context;
    this.list = list;
}

@Override
public int getItemViewType(int position) {
    return position%2;
}

@Override
public int getViewTypeCount() {
    return 2;
}

@Override
public int getCount() {
    return list.size();
}

@Override
public Object getItem(int i) {
    return null;
}

@Override
public long getItemId(int i) {
    return 0;
}

@Override
public View getView(int i, View view, ViewGroup viewGroup) {
    int itemViewType = getItemViewType(i);
    switch (itemViewType){
        case 0:
            ViewHolder holder;
            if (view==null){
                view=View.inflate(context,R.layout.item,null);
                holder=new ViewHolder();
                holder.image=view.findViewById(R.id.image);
                holder.tv1=view.findViewById(R.id.tv1);
                view.setTag(holder);
            }else {
                holder = (ViewHolder) view.getTag();
            }
            holder.tv1.setText(list.get(i).getName());
            //图片
            ImageLoader.getInstance().displayImage(list.get(i).getImageUrl(),holder.image);
            break;
        case 1:
            ViewHolder holder1;
            if (view==null){
                view=View.inflate(context,R.layout.item,null);
                holder1=new ViewHolder();
                holder1.tv1=view.findViewById(R.id.tv1);
                view.setTag(holder1);
            }else {
                holder1 = (ViewHolder) view.getTag();
            }
            holder1.tv1.setText(list.get(i).getName());
            break;
    }
    return view;
}
class ViewHolder{
    ImageView image;
    TextView tv1;
}

}