ListViewGridview的上拉加载下拉刷新

github项目https://github.com/woxingxiao/PullToRefreshAndLoadMore

留作自己的笔记

使用：配置

Gradle

dependencies{
    compile 'com.xw.repo:PullToRefresh:1.0.1@aar'
}

demo只做了ListView'的刷新加载

对于GridView的刷新加载，需要重写GridView

public class MyGridView extends GridView  implements Pullable {
    private boolean pullDownEnable = true; //下拉刷新开关
    private boolean pullUpEnable = true; //上拉刷新开关

    public MyGridView(Context context) {
        super(context);
    }

    public MyGridView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public MyGridView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean canPullDown() {
        if (!pullDownEnable)
            return false;
        if (getCount() == 0) {
            // 没有item的时候也可以下拉刷新
            return true;
        } else if (getFirstVisiblePosition() == 0 && getChildAt(0).getTop() >= 0) {
            // 滑到ListView的顶部了
            return true;
        }

        return false;
    }

    @Override
    public boolean canPullUp() {
        if (!pullUpEnable)
            return false;
        if (getCount() == 0) {
            // 没有item的时候也可以上拉加载
            return true;
        } else if (getLastVisiblePosition() == (getCount() - 1)) {
            // 滑到底部了
            if (getChildAt(getLastVisiblePosition() - getFirstVisiblePosition()) != null
                    && getChildAt(getLastVisiblePosition() - getFirstVisiblePosition()).getBottom() <= getMeasuredHeight())
                return true;
        }
        return false;
    }

    public boolean isPullDownEnable() {
        return pullDownEnable;
    }

    public void setPullDownEnable(boolean pullDownEnable) {
        this.pullDownEnable = pullDownEnable;
    }

    public boolean isPullUpEnable() {
        return pullUpEnable;
    }

    public void setPullUpEnable(boolean pullUpEnable) {
        this.pullUpEnable = pullUpEnable;
    }
}

其他的刷新加载的控件：

PullToRefreshAndLoad

github：https://github.com/jingchenUSTC/PullToRefreshAndLoad

仅做个人笔记使用