/** 切换到正在刷新状态，会调用delegate的onBGARefreshLayoutBeginRefreshing方法 */
public void beginRefreshing() {
if (mCurrentRefreshStatus != RefreshStatus.REFRESHING && mDelegate != null) {
mCurrentRefreshStatus = RefreshStatus.REFRESHING;
changeRefreshHeaderViewToZero();
handleRefreshStatusChanged();
mDelegate.onBGARefreshLayoutBeginRefreshing(this);
}
}
/** 开始上拉加载更多，会触发delegate的onBGARefreshLayoutBeginRefreshing方法 */
public void beginLoadingMore() {
if (!mIsLoadingMore
&& mLoadMoreFooterView != null
&& mDelegate != null
&& mDelegate.onBGARefreshLayoutBeginLoadingMore(this)) {
mIsLoadingMore = true;
if (mIsShowLoadingMoreView) {
showLoadingMoreView();
}
}
}
