集合视图在iOS的iMessage Extension中的导航栏后面可见

Question

I'm developing iMessage Extension app. My problem is that the collection view is visible behind navigation bar in expand mode.

Is there anybody who has experience in this area? Looking for any help.

Answer 1

Give constraint to your CollectionView like this while Constraint to margins is unselected.

Source code

Answer 2

您可以尝试将集合视图的内容偏移量更改为，以将其移动到导航栏下方，如下所示：

collectionView.contentOffset = CGPointMake(0, navigationController.navigationBar.frame.size.height)

Answer 3

After give Constraints(Top:0,Left:0,Right:0,Bottom:0),you should give Top Constraints of CollectionView to Top Layout Guide.Bottom ratherthan Superview.Top like this:

CollectionView.Top = Top Layout Guide.Bottom is set to 0.