UICollectionViewCell选中高亮状态和UIButton的高亮状态和选中状态

UICollectionViewCell选中高亮状态

//设置点击高亮和非高亮效果！
- (BOOL)collectionView:(UICollectionView *)collectionView shouldHighlightItemAtIndexPath:(NSIndexPath *)indexPath
{
    return YES;
}
-  (void)collectionView:(UICollectionView *)collectionView didHighlightItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView cellForItemAtIndexPath:indexPath];
    [cell setBackgroundColor:[UIColor lightGrayColor]];
}
- (void)collectionView:(UICollectionView *)collectionView didUnhighlightItemAtIndexPath:(NSIndexPath *)indexPath
{
    UICollectionViewCell *cell = [collectionView cellForItemAtIndexPath:indexPath];
    [cell setBackgroundColor:[UIColor whiteColor]];
}

UIButton的高亮状态

        [_backBtn setBackgroundImage:[UIImage imageNamed:@"tijiao_n"] forState:UIControlStateNormal];
        [_backBtn setBackgroundImage:[UIImage imageNamed:@"tijiao_c"] forState:UIControlStateHighlighted];

UIButton的选中保持这个状态再点击取消状态

[button setImage:[UIImage imageNamed:@"like"] forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:@"like"] forState: UIControlStateHighlighted];
[button setImage:[UIImage imageNamed:@"like_selected"] forState:UIControlStateSelected];
[button setImage:[UIImage imageNamed:@"like_selected"] forState:UIControlStateSelected | UIControlStateHighlighted];