大家好，又见面了，我是你们的朋友全栈君。
//点击选定
– (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
JFCollectionViewCell *cell = (JFCollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];
cell.backgroundColor=[UIColor colorWithRed:27/255.0 green:166/255.0 blue:152/255.0 alpha:1];
cell.topLabel.textColor=[UIColor whiteColor];
cell.bottomLabel.textColor=[UIColor whiteColor];
NSLog(@”第%ld区，第%ld个“,(long)indexPath.section,(long)indexPath.row);
}
//取消选定
-(void)collectionView:(UICollectionView *)collectionView didDeselectItemAtIndexPath:(NSIndexPath *)indexPath{
JFCollectionViewCell *cell = (JFCollectionViewCell *)[collectionView cellForItemAtIndexPath:indexPath];
cell.backgroundColor=[UIColor whiteColor];
cell.topLabel.textColor=[UIColor colorWithRed:27/255.0 green:166/255.0 blue:152/255.0 alpha:1];
cell.bottomLabel.textColor=[UIColor blackColor];
NSLog(@”1第%ld区，1第%ld个“,(long)indexPath.section,(long)indexPath.row);
}
发布者：全栈程序员-站长，转载请注明出处：https://javaforall.net/139372.html原文链接：https://javaforall.net
![DNS 全局负载均衡（GSLB）基本原理[通俗易懂]](https://javaforall.net/wp-content/uploads/2020/11/2020110817443450-480x300.jpg)
