Fixed Gradient Background for UICollectionView

Question

How do you add a simple two color gradient as background to a UICollectionView. It should cover the whole background and stay fixed even when scrolling the collection view (horizontally).

All layer based solutions I tried so far had issues regarding not covering the whole screen and covering only the initially visible frame. Bonus points for being animatable and not using images ... ;)

What's the best way to do this?

Answer 1

一个简单而快速的解决方案是将UICollectionView的背景颜色设置为“clear”，并添加另一个带有渐变的UIView。