Question

我构建了一个应用程序，其中pulltorefresh和stickylistHeaders都需要。我已经在应用程序中实现了pulltorefresh但是无法使其与stickyListHeaders一起使用。是否可以合并这两个库？或者有其他选择吗？任何想法？

Answer 1

在更新两个库后，我的实现也被破坏了。这是我的快速修复，使其再次运行。 欢迎任何建议和改进！

创建一个新类并扩展SticklistListHeadersListView并从ActionBar-PullToRefresh实现ViewDelegate接口：

public class PtrStickyListHeadersListView extends StickyListHeadersListView
        implements ViewDelegate {

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

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

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

    @Override
    public boolean isReadyForPull(View view, float v, float v2) {
        View childView = getWrappedList().getChildAt(0);
        int top = (childView == null) ? 0 : childView.getTop();
        return top >= 0;
    }
}

在您的layout.xml替换

中

<se.emilsjolander.stickylistheaders.StickyListHeadersListView
        ...>

与

<com.yourapp.package.foo.PtrStickyListHeadersListView
        ...>

最后，添加委托：（listView是PtrStickyListHeadersListView的一个实例）

ActionBarPullToRefresh.from(getActivity())
        // We need to insert the PullToRefreshLayout into the Fragment 's ViewGroup
        .insertLayoutInto(viewGroup)
        // We need to mark the ListView and it 's Empty View as pullable
        // This is because they are not dirent children of the ViewGroup
        .theseChildrenArePullable(R.id.your_list_id)
        // We can now complete the setup as desired
        .listener(...)
        .useViewDelegate(PtrStickyListHeadersListView.class, listView)
        .setup(mPullToRefreshLayout);

Answer 2

与Helden的答案类似，您也可以使用匿名内部类来实现此目的，而无需扩展StickyListHeadersListView

    myList = (StickyListHeadersListView) v.findViewById(R.id.your_list_id);
    ActionBarPullToRefresh.from(getActivity())
            .allChildrenArePullable()
            .listener(this)
            .useViewDelegate(StickyListHeadersListView.class, new ViewDelegate() {
                @Override
                public boolean isReadyForPull(View view, float v, float v2) {
                    return ... //check if list is scrolled to the top or not
                }
            })
            .setup(mPullToRefreshLayout);

是否有可能将stickylistviewheader与crisbanes pulltorefresh合并？

2 个答案: