PullToRefresh

PullToRefresh上拉加载，下拉刷新
首先导入PullToRefresh的Module
布局代码：

<com.handmark.pulltorefresh.library.PullToRefreshListView
        android:id="@+id/pull_refresh_list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:cacheColorHint="#00000000"
        android:divider="#19000000"
        android:dividerHeight="4dp"
        android:fadingEdge="none"
        android:fastScrollEnabled="false"
        android:footerDividersEnabled="false"
        android:headerDividersEnabled="false"
        android:smoothScrollbar="true"
        >
    </com.handmark.pulltorefresh.library.PullToRefreshListView>
    public class MainActivity extends BaseActivity {

PullToRefresh

public static final String TAG="MainActivity";
int page=1;
List<Ganh.DataBean> mList=new ArrayList();
ExpoAdapter mExAd;
private Message message1;
private TextView viewById;
PullToRefreshListView  pull_refresh_list;
Ganh ganh;
private List<Ganh.DataBean> data;
Handler  mHandler=new Handler(){
    @Override
    public void handleMessage(Message msg) {
        super.handleMessage(msg);
        switch (msg.what){
            case 0:
                String t= msg.obj.toString();
                Gson gson=new Gson();
                ganh =  gson.fromJson(t,Ganh.class);
                data = ganh.getData();
                mList.addAll(data);
                if(mExAd==null){
                    mExAd = new ExpoAdapter(MainActivity.this,mList);
                    pull_refresh_list.setAdapter(mExAd);
                    mExAd.notifyDataSetChanged();
               }else {
                   mExAd.notifyDataSetChanged();
               }
                pull_refresh_list.onRefreshComplete();
                break;
        }
    }
};