PullToRefresh

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PullToRefresh

在Studio中如何用：http://blog.csdn.net/L59_1/article/details/78283817······链接
代码示例
PullToRefreshScrollView
代码演示的是在页面上部是轮播图，下部是listview，而PullToRefresh在外面
**(关于listview控件为MyListView(继承ListView)
参考博客地址:http://blog.csdn.net/zhaokaiqiang1992/article/details/38585547
http://blog.csdn.net/zhaokaiqiang1992/article/details/38585547，
如果不继承，会显示不全
重点代码@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, expandSpec);
}
)**
这是activity_main.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    xmlns:ptr="http://schemas.android.com/apk/res-auto"    tools:context="animtest.com.example.e531.week3_10month_demo.MainActivity"><com.handmark.pulltorefresh.library.PullToRefreshScrollView    android:id="@+id/refresh_scroll_view"    android:layout_width="match_parent"    android:layout_height="match_parent"    ptr:ptrAnimationStyle="flip"    ptr:ptrDrawable="@drawable/default_ptr_flip"    ptr:ptrHeaderBackground="#383838"    ptr:ptrHeaderTextColor="#FFFFFF">    <RelativeLayout        android:orientation="vertical"        android:layout_width="match_parent"        android:layout_height="match_parent">        <android.support.v4.view.ViewPager            android:layout_width="match_parent"            android:layout_height="200dp"            android:id="@+id/vp"></android.support.v4.view.ViewPager>    <LinearLayout        android:orientation="horizontal"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_alignBottom="@id/vp"        android:id="@+id/lin"        ></LinearLayout>        <animtest.com.example.e531.week3_10month_demo.MyListView            android:layout_width="match_parent"            android:layout_height="match_parent"            android:id="@+id/mlv"            android:layout_below="@id/vp"></animtest.com.example.e531.week3_10month_demo.MyListView>    </RelativeLayout></com.handmark.pulltorefresh.library.PullToRefreshScrollView></RelativeLayout>

MainActivity.java文件

package animtest.com.example.e531.week3_10month_demo;import android.os.Handler;import android.os.Message;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.ScrollView;import com.google.gson.Gson;import com.handmark.pulltorefresh.library.ILoadingLayout;import com.handmark.pulltorefresh.library.PullToRefreshBase;import com.handmark.pulltorefresh.library.PullToRefreshScrollView;import java.util.ArrayList;import java.util.List;import animtest.com.example.e531.week3_10month_demo.Utils.MyTask;public class MainActivity extends AppCompatActivity {    private PullToRefreshScrollView rsv;    private MyListView mlv;    private ViewPager viewPager;    private List<String> list;    private MyAdapter adapter;    private List<Result.DataEntity>  lists=new ArrayList<Result.DataEntity>();    private int pageIndex=0;    //存放小圆点控件的集合    private List<ImageView> images;    private Handler myHandler = new Handler() {        @Override        public void handleMessage(Message msg) {            //获取当前正在显示的页面            int index = viewPager.getCurrentItem();            viewPager.setCurrentItem(index + 1);            //改变小圆点            setSelectedPoint((index + 1) % list.size());            //延迟发送消息            sendEmptyMessageDelayed(1, 2000);        }    };    private LinearLayout linearLayout;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //初使化组件        initView();        //初使化refreshScrollView        intRefreshScrollView();        //初使化小圆点        initVp();        //请求数据        requestData();    }    public void requestData(){        MyTask myTask=new MyTask(new MyTask.Icallbacks() {            @Override            public void updateUiByjson(String jsonstr) {                Gson gson=new Gson();                Result result=gson.fromJson(jsonstr,Result.class);                lists.addAll(result.getData());                setAdapter();            }        });        myTask.execute("http://www.93.gov.cn/93app/data.do?channelId=0&startNum=0");    }    public void setAdapter(){        if(adapter==null){            adapter=new MyAdapter(lists,MainActivity.this);            mlv.setAdapter(adapter);        }else {            adapter.notifyDataSetChanged();        }    }    public void initVp() {        //数据.....装的是path路径        list = new ArrayList<>();        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151721118&di=649c9a43aed72fbc4d99ec1a031510c6&imgtype=0&src=http%3A%2F%2Fimg.zcool.cn%2Fcommunity%2F015c7d574b9f8f6ac72525aee98351.jpg");        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151956771&di=0eb6f306991d24b67a13ceb336f80102&imgtype=0&src=http%3A%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F00613def3f1beb7a35ae136341be2b589bc46a2d.jpg_320x200.jpg");        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151847685&di=c7a4b5d08ec43fa629bcb690039a7629&imgtype=0&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_080625%2F20080625_2e91a10c444877e88827vri2ZKdGMvQo.jpg");        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505151825129&di=70bf74b87d8a15cb91a2d79f15ed0eaf&imgtype=0&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_081016%2F20081016_fee215664d5740e56c13E2YB8giERFEX.jpg");        list.add("https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1505746504&di=930c4d677a02328a142d6fa85ed14580&imgtype=jpg&er=1&src=http%3A%2F%2Fattimg.dospy.com%2Fimg%2Fday_090113%2F20090113_6ac58b42bea94f0b318e1B6BZb5lPZl5.jpg");        //初始化小圆点        initDoc();        //设置适配器        viewPager.setAdapter(new ImagePager(this, list));        //设置当前要显示的页面        viewPager.setCurrentItem(list.size() * 10);        //实现自动播放        myHandler.sendEmptyMessageDelayed(1, 2000);    }    private void intRefreshScrollView() {        //1.设置模式        rsv.setMode(PullToRefreshBase.Mode.BOTH);        //2.通过调用getLoadingLayoutProxy方法，设置下拉刷新状况布局中显示的文字 ，第一个参数为true,代表下拉刷新        ILoadingLayout headLables = rsv.getLoadingLayoutProxy(true, false);        headLables.setPullLabel("下拉刷新");        headLables.setRefreshingLabel("正在刷新");        headLables.setReleaseLabel("松开刷新");        //2.设置上拉加载底部视图中显示的文字，第一个参数为false,代表上拉加载更多        ILoadingLayout footerLables = rsv.getLoadingLayoutProxy(false, true);        footerLables.setPullLabel("上拉加载");        footerLables.setRefreshingLabel("正在载入...");        footerLables.setReleaseLabel("松开加载更多");        //3.设置监听事件        rsv.setOnRefreshListener(new PullToRefreshBase.OnRefreshListener2<ScrollView>() {            @Override            public void onPullDownToRefresh(PullToRefreshBase<ScrollView> refreshView) {                addToTop();                refreshComplete();            }            @Override            public void onPullUpToRefresh(PullToRefreshBase<ScrollView> refreshView) {                addToBottom();                refreshComplete();            }        });    }    /**     * 刷新完成时关闭     */    public void refreshComplete(){        new Handler().postDelayed(new Runnable() {            @Override            public void run() {                rsv.onRefreshComplete();            }        },1000);    }    public void addToBottom(){        pageIndex=pageIndex+20;        MyTask myTask=new MyTask(new MyTask.Icallbacks() {            @Override            public void updateUiByjson(String jsonstr) {                Gson gson=new Gson();                Result result=gson.fromJson(jsonstr,Result.class);                //添加到集合中                lists.addAll(result.getData());                //设置适配器                setAdapter();            }        });        myTask.execute("http://www.93.gov.cn/93app/data.do?channelId=0&startNum="+pageIndex);    }    public void addToTop(){        MyTask myTask=new MyTask(new MyTask.Icallbacks() {            @Override            public void updateUiByjson(String jsonstr) {                Gson gson=new Gson();                Result result=gson.fromJson(jsonstr,Result.class);                //清空集合                lists.clear();                //添加到集合中                lists.addAll(0,result.getData());                //设置适配器                setAdapter();            }        });        myTask.execute("http://www.93.gov.cn/93app/data.do?channelId=0&startNum=0");    }    public void initView() {        rsv = (PullToRefreshScrollView) findViewById(R.id.refresh_scroll_view);        mlv = (MyListView) findViewById(R.id.mlv);        viewPager = (ViewPager) findViewById(R.id.vp);        linearLayout = (LinearLayout) findViewById(R.id.lin);    }    /**     * 改变小圆点图片     *     * @param index 页面的下标     */    public void setSelectedPoint(int index) {        for (int i = 0; i < images.size(); i++) {            if (i == index) {                images.get(i).setImageResource(R.drawable.point_selected);            } else {                images.get(i).setImageResource(R.drawable.point_un_selected);            }        }    }    /**     * 初始化小圆点     * 动态添加     */    private void initDoc() {        images = new ArrayList<>();        for (int i = 0; i < list.size(); i++) {            ImageView imgPoint = new ImageView(this);            //设置图片的缩放模式            imgPoint.setScaleType(ImageView.ScaleType.FIT_XY);            //设置要显示的图片            if (i == 0) {                //红色的点                imgPoint.setImageResource(R.drawable.point_selected);            } else {                imgPoint.setImageResource(R.drawable.point_un_selected);            }            //设置宽度与高度            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(40, 40);            params.setMargins(10, 0, 10, 0);            //添加到底部容器中            linearLayout.addView(imgPoint, params);            //添加到集合中            images.add(imgPoint);        }    }}

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