UICollectionViewCell 选中效果

// 1.点击跳转时颜色的变化

// 2.实现UICollectionViewDelegate 协议里面的 高亮状态处理

#import <UIKit/UIKit.h>

 

NS_ASSUME_NONNULL_BEGIN

 

@interface UICollectionView (UpdaateCellBackground)

 

/// 更新cell被点击时的背景色

/// @param indexPath 点击的位置

- (void)updateCellClickedBackgroundColorAtIndexPath:(NSIndexPath *)indexPath;

 

@end

 

NS_ASSUME_NONNULL_END

 

#import "UICollectionView+UpdaateCellBackground.h"

 

@implementation UICollectionView (UpdaateCellBackground)

 

- (void)updateCellClickedBackgroundColorAtIndexPath:(NSIndexPath *)indexPath {

    UICollectionViewCell *cell = [self cellForItemAtIndexPath:indexPath];