[self.collectionView scrollToItemAtIndexPath:nextIndexPath atScrollPosition:UICollectionViewScrollPositionBottom animated:YES]; 能否设置其动画的时长.... <img width="276" alt="2017-11-15 4 25 47" src="https://user-images.githubusercontent.com/16985934/32825992-c244ed2c-ca21-11e7-8832-f832dd4451d6.png"> 这种效果有啥好的实现方式嘛 O(∩_∩)O~
[self.collectionView scrollToItemAtIndexPath:nextIndexPath atScrollPosition:UICollectionViewScrollPositionBottom animated:YES]; 能否设置其动画的时长....
这种效果有啥好的实现方式嘛 O(∩_∩)O~