PullToRefreshListView

来源：互联网发布：骑士队数据编辑：程序博客网时间：2024/06/15 18:35

=========MainActivity=====================================================

package wangaimin.bwie.com.example.lenovo.pulltorefresh;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.widget.ListView;import com.google.gson.Gson;import com.handmark.pulltorefresh.library.ILoadingLayout;import com.handmark.pulltorefresh.library.PullToRefreshBase;import com.handmark.pulltorefresh.library.PullToRefreshListView;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.List;public class MainActivity extends AppCompatActivity {    private List<DataDataBean.ResultsBean> list = new ArrayList<>();//记录当前展示的所有数据    private ListViewAdapter listViewAdapter;    private PullToRefreshListView refreshListView;    private ILoadingLayout startLabels;    private int page_num = 1;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        refreshListView = (PullToRefreshListView) findViewById(R.id.refresh_list_view);        //1.设置listView的适配器        getDataFromNet();        //2.设置刷新模式        /*设置pullToRefreshListView的刷新模式，BOTH代表支持上拉和下拉，PULL_FROM_END代表上拉,PULL_FROM_START代表下拉 */        refreshListView.setMode(PullToRefreshBase.Mode.BOTH);        //3.通过getLoadingLayoutProxy 方法来指定上拉和下拉时显示的状态的区别(也就是设置向下拉的时候头部里面显示的文字)        //此时这里设置的是下拉刷新的时候显示的文字,所以第一个设置true表示现在是刷新,第二个设置为false        startLabels = refreshListView.getLoadingLayoutProxy(true, false);        startLabels.setPullLabel("下拉刷新");        startLabels.setRefreshingLabel("正在刷新...");        startLabels.setReleaseLabel("放开刷新");        ILoadingLayout endLabels = refreshListView.getLoadingLayoutProxy(false, true);        endLabels.setPullLabel("上拉刷新");        endLabels.setRefreshingLabel("正在载入...");        endLabels.setReleaseLabel("放开刷新...");        refreshListView.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ListView>() {            //下拉刷新的时候调用的方法....请求第一页的数据,清空之前的数据,然后再添加设置适配器            @Override            public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {                //下拉刷新....请求第一页的数据,清空之前的数据,然后再添加设置适配器                getRefreshData();            }            //上拉刷新的时候调用的方法..page++,然后在请求数据            @Override            public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {                //上拉刷新/加载...加载的时候页数++                page_num++;                getDataFromNet();            }        });    }    private void getRefreshData() {        NetDataUtil.getData("http://gank.io/api/data/Android/10/1", MainActivity.this, new JsonCallBack() {            @Override            public void getJsonString(String json) {                //解析                Gson gson = new Gson();                DataDataBean dataDataBean = gson.fromJson(json, DataDataBean.class);                //先清空一下数据                list.clear();                //添加到集合的最前边,,,,(0,,,,)                list.addAll(0,dataDataBean.getResults());                //设置适配器                setAdapter();                //设置适配器之后停止刷新的操作                refreshListView.onRefreshComplete();                //可以设置刷新的时间....                startLabels.setLastUpdatedLabel("上次更新时间:"+new SimpleDateFormat("HH:mm").format(new Date(System.currentTimeMillis())));//last最近的,最后一次update修改/更新            }        });    }    private void setAdapter() {        if (listViewAdapter == null){            listViewAdapter = new ListViewAdapter(MainActivity.this,list);            refreshListView.setAdapter(listViewAdapter);        }else {            listViewAdapter.notifyDataSetChanged();        }    }    private void getDataFromNet() {        NetDataUtil.getData("http://gank.io/api/data/Android/10/"+page_num,MainActivity.this, new JsonCallBack() {            @Override            public void getJsonString(String json) {                //解析                Gson gson = new Gson();                DataDataBean dataDataBean = gson.fromJson(json, DataDataBean.class);                //往后面添加...                list.addAll(dataDataBean.getResults());                //设置适配器                setAdapter();                //停止刷新                refreshListView.onRefreshComplete();            }        });    }}

=========ListViewAdapter==================================================

package wangaimin.bwie.com.example.lenovo.pulltorefresh;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;/** * @author Dash * @date 2017/10/18 * @description: * * 多条目加载 */public class ListViewAdapter extends BaseAdapter {    Context context;    List<DataDataBean.ResultsBean> list;    private int TEXT_ONLY = 0;    private int IMAGE_TEXT = 1;    public ListViewAdapter(Context context, List<DataDataBean.ResultsBean> list) {        this.context = context;        this.list = list;    }    @Override    public int getCount() {        return list.size();    }    @Override    public Object getItem(int i) {        return list.get(i);    }    @Override    public long getItemId(int i) {        return i;    }    @Override    public int getViewTypeCount() {//返回有多少种条目的视图        return 2;    }    @Override    public int getItemViewType(int position) {//返回当前条目视图的类型        //根据当前位置是否有图片决定,该条目的类型是什么        if (list.get(position).getImages() != null){            return IMAGE_TEXT;        }        return TEXT_ONLY;    }    @Override    public View getView(int i, View view, ViewGroup viewGroup) {        if (getItemViewType(i) == TEXT_ONLY){            TextHolder holder;            if (view == null){                view = View.inflate(context, R.layout.item_text_layout,null);                holder = new TextHolder();                holder.textView = view.findViewById(R.id.text_title);                view.setTag(holder);            }else {                holder = (TextHolder) view.getTag();            }            holder.textView.setText(list.get(i).getDesc());        }else if (getItemViewType(i) == IMAGE_TEXT){            ImageHolder holder;            if (view == null){                view = View.inflate(context, R.layout.item_image_layout,null);                holder = new ImageHolder();                holder.textView = view.findViewById(R.id.text_title);                holder.imageView = view.findViewById(R.id.image_view);                view.setTag(holder);            }else {                holder = (ImageHolder) view.getTag();            }            holder.textView.setText(list.get(i).getDesc());            //设置图片的显示           ImageLoader.getInstance().displayImage(list.get(i).getImages().get(0),holder.imageView, ImageLoaderUtil.getRoundOption());        }        return view;    }    private class TextHolder{        TextView textView;    }    private class ImageHolder{        TextView textView;        ImageView imageView;    }}

=========activity_main==============================================

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="wangaimin.bwie.com.example.lenovo.pulltorefresh.MainActivity">    <com.handmark.pulltorefresh.library.PullToRefreshListView        xmlns:ptr="http://schemas.android.com/apk/res-auto"        android:layout_height="match_parent"        android:layout_width="match_parent"        android:id="@+id/refresh_list_view"        ptr:ptrDrawable="@drawable/default_ptr_flip"        ptr:ptrAnimationStyle="flip"        ptr:ptrHeaderBackground="#383838"        ptr:ptrHeaderTextColor="#FFFFFF"  >    </com.handmark.pulltorefresh.library.PullToRefreshListView></LinearLayout>

===========item_image_layout===========================================

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal"    android:padding="10dp"    android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:id="@+id/text_title"        android:layout_weight="1"        android:layout_width="0dp"        android:layout_height="wrap_content" />    <ImageView        android:id="@+id/image_view"        android:layout_width="100dp"        android:layout_height="100dp" /></LinearLayout>

============item_text_layout==========================================================

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal"    android:padding="10dp"    android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:id="@+id/text_title"        android:layout_width="wrap_content"        android:layout_height="wrap_content" /></LinearLayout>

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