android中gridview的上拉加载更多

先看效果图

上面效果图可以看到，gridview滑动到底部时，如果再次拉动可以加载下一页内容

下面是使用步骤

一，首先定义监听器，来监听gridview是否滑动到底部

package com.stickynavlistview.listenter;import android.view.View;import android.widget.AbsListView;import android.widget.AbsListView.OnScrollListener;import android.widget.Toast;/** * 滚动至列表底部，读取下一页数据 */public class AutoLoadListener implements OnScrollListener {    public interface AutoLoadCallBack {        void execute();    }    private int getLastVisiblePosition = 0, lastVisiblePositionY = 0;    private AutoLoadCallBack mCallback;    public AutoLoadListener(AutoLoadCallBack callback) {        this.mCallback = callback;    }    public void onScrollStateChanged(AbsListView view, int scrollState) {        if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {            //滚动到底部            if (view.getLastVisiblePosition() == (view.getCount() - 1)) {                View v = (View) view.getChildAt(view.getChildCount() - 1);                int[] location = new int[2];                v.getLocationOnScreen(location);//获取在整个屏幕内的绝对坐标                int y = location[1];                if (view.getLastVisiblePosition() != getLastVisiblePosition && lastVisiblePositionY != y)//第一次拖至底部                {                    Toast.makeText(view.getContext(), "已经拖动至底部，再次拖动即可翻页", Toast.LENGTH_SHORT).show();                    getLastVisiblePosition = view.getLastVisiblePosition();                    lastVisiblePositionY = y;                    return;                } else if (view.getLastVisiblePosition() == getLastVisiblePosition && lastVisiblePositionY == y)//第二次拖至底部                {                    mCallback.execute();                }            }            //未滚动到底部，第二次拖至底部都初始化            getLastVisiblePosition = 0;            lastVisiblePositionY = 0;        }    }    public void onScroll(AbsListView arg0, int arg1, int arg2, int arg3) {    }}

2，使用时只需要为gridview设置

  @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,                             Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.fragment_tab, container, false);        mListView = (GridView) view                .findViewById(R.id.id_stickynavlayout_innerscrollview);        // mTextView = (TextView) view.findViewById(R.id.id_info);        // mTextView.setText(mTitle);        AutoLoadListener autoLoadListener = new AutoLoadListener(callBack);        mListView.setOnScrollListener(autoLoadListener);        initPage();        return view;    }    AutoLoadListener.AutoLoadCallBack callBack = new AutoLoadListener.AutoLoadCallBack() {        public void execute() {            //            Utils.showToast("已经拖动至底部");            loadSpareItems(currentPage + 1);//这段代码是用来请求下一页数据的        }    };

github下载地址： https://github.com/qiushi123/StickyNavListview-pulltoGridView

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