对RecyclerView的封装,功能强大、使用简单、扩展性强。该库主要分成三部分:RecyclerAdapter、XRecyclerView、XRecyclerContentLayout
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RecyclerAdapter简化了Adapter的开发,封装了一些常用的逻辑,包括数据集合操作、接口监听RecyclerItemCallback可以满足99%的需求。
public class TestRecAdapter extends RecyclerAdapter<TestRecAdapter.Item, TestRecAdapter.ViewHolder> {
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
}
}
XRecyclerView是对RecyclerView的封装,其主要特性包括:
recyclerView.verticalLayoutManager(this) //设置layoutManager
.setAdapter(adapter); //设置Adapter
recyclerView.horizontalDivider(R.color.x_red, R.dimen.divider_height); //设置divider
recyclerView.setOnRefreshAndLoadMoreListener(new XRecyclerView.OnRefreshAndLoadMoreListener() { //设置刷新和上拉加载监听
@Override
public void onRefresh() {
loadData(1);
}
@Override
public void onLoadMore(int page) {
loadData(page);
}
});
recyclerView.useDefLoadMoreView(); //使用默认的上拉刷新样式
recyclerView.addHeaderView(headView); //添加header
recyclerView.addFooterView(footview); //添加footer
recyclerView.removeHeaderView(headview); //删除header
recyclerView.removeFooterView(footview); //删除footer
XRecyclerContentLayout继承了QTContentLayout,可自定义Loading、Error、Empty、Content四种显示状态,满足了绝大部分需求.
<cn.droidlover.xrecyclerview.XRecyclerContentLayout
android:id="@+id/contentLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:recyclerBackgroundColor="#f5f5f5"
app:recyclerScrollbarNone="true"
app:recyclerScrollbarStyle="outsideOverlay" />
contentLayout.loadingView(new LoadingView(this));
.errorView(new ErrorView(this));
.emptyView(new EmptyView(this));
contentLayout.showLoading();
contentLayout.showError();
contentLayout.showEmpty();
contentLayout.showContent();
自定义LoaderMoreView只需实现LoadMoreUIHandler接口,然后调用xrecyclerView的loadMoreFooterView(loadMoreView)方法即可。
@Override
public void onLoading() {
setVisibility(VISIBLE);
tvMsg.setText("加载中");
progressBar.setVisibility(VISIBLE);
}
@Override
public void onLoadFinish(boolean hasMore) {
if (hasMore) {
setVisibility(GONE);
} else {
setVisibility(VISIBLE);
tvMsg.setText("没有更多数据");
progressBar.setVisibility(GONE);
}
}
设置loadMoreView
recyclerView.loadMoreFooterView(loadMoreView);
在XRecyclerContentLayout中内置了SwipeRefreshLayout下拉刷新样式,您也可以自定义实现XRecyclerContentLayout,只需实现XRecyclerView.StateCallback接口即可.
public interface StateCallback {
void notifyEmpty(); //数据为空
void notifyContent(); //显示contentview
void refreshState(boolean isRefresh); //更新刷新状态
void refreshEnabled(boolean isEnabled); //刷新是否可用
}
详情demo可见app module。