iOS 中经常要进行埋点，我们这里支持 UICollectionViewCell. 进行自动化埋点，思路：
通过hook UICollectionViewCell 的setSelected:方法，
则新的方法中执行埋点逻辑，并调用原来的方法

直接上代码

@implementation UICollectionViewCell (LB)+ (void)load
{instanceMethodExchangeImplementations([self class], @selector(setSelected:), [self class], @selector(setSelectedWithFilter:));
}-(void)setSelectedWithFilter:(BOOL)selected
{// 过滤拼音键盘提示词if (selected && !self.skipTrack ) {UIView *tempSuperView = self.superview;while (tempSuperView) {if ([tempSuperView isKindOfClass:[UICollectionView class]]) {break;}tempSuperView = tempSuperView.superview;}// 非LBScrllView的cell，才由setSelected触发点击采集，LB cell由didSelected触发，if (tempSuperView && [tempSuperView isKindOfClass:[UICollectionView class]]&& ![tempSuperView isKindOfClass:[LBCollectionView class]] && ![tempSuperView isKindOfClass:[LBScrollView class]]) {UICollectionView *collectionView = (UICollectionView *)tempSuperView;if (![collectionView isDragging] && ![collectionView isTracking] && ![collectionView isDecelerating]) {[self setMonitorSelected:selected];}}}[self setSelectedWithFilter:selected];
}- (void)setMonitorSelected:(BOOL)selected
{if (selected && !self.skipTrack) {//执行埋点逻辑}
}- (void)logClickCell
{}@end