The 3 main snapchat buttons are on the bottom on the screen, but as you swipe and move between different view controllers, they stay in the same position. Not only that, they also shrink and grow depending on which view you are in.
I'm trying to do something similar. I have a button at the top of my vc, and when I segue to another one I would like it to stay it there and still be functional.
One possible way of going about this would be using a
UIPageViewController and setting it up to show the required
UIViewControllers at the appropriate indexes. You will have to programmatically add the buttons after subclassing the
When setting the
UIViewControllers you can also pass the constraints of the buttons that you need to shrink or enlarge and in the
viewDidAppear for each
UIViewController. You can animate the constraints to do what you require.
You can also use
UICollectionView with full screen size cells and add the required
UIViewController.view at the proper indexes inside the
UICollectionViewCell.contentView. Add the buttons on top of the
UICollectionView and animate the button by increasing or decreasing the constraints based on the