Shazam

Requirements

Installation

CocoaPods (recommended)

use_frameworks!
pod 'Shazam'

Usage

import Shazam

Create a ShazamPageViewController subclass

import Shazam
class PageViewController: ShazamPageViewController {
 // ...
}

Provide the view controllers that will appear embedded into the ShazamPageViewController

override func numberOfViewControllers(in pageController: ShazamPageViewController) -> Int {
 return count
}
 
override func pageController(_ pageController: ShazamPageViewController, viewControllerAt index: Int) -> (UIViewController & ShazamChildViewController) {
 // ...
 return viewController
}
 

import Shazam
class ChildViewController: UIViewController, ShazamChildViewController {
 @IBOutlet weak var tableView: UITableView!
 func shazamChildScrollView() -> UIScrollView {
 return tableView
 }
 // ...
}

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize {
 guard let pageViewContoller = szPageViewContoller else {
 return .zero
 }
 let headerViewHeight = pageViewContoller.headerViewHeightFor(pageViewContoller)
 let menuViewHeight = pageViewContoller.menuViewHeightFor(pageViewContoller)
 return CGSize(width: collectionView.bounds.width, height: headerViewHeight + menuViewHeight)
 }

Provide the headerView and headerView height

override func headerViewFor(_ pageController: ShazamPageViewController) -> UIView & ShazamHeaderView {
 return HeaderView()
}
override func headerViewHeightFor(_ pageController: ShazamPageViewController) -> CGFloat {
 return headerViewHeight
}

func userInteractionViews() -> [UIView]? {
 return [button]
}

Provide the menuView and menuView height

override func menuViewFor(_ pageController: ShazamPageViewController) -> UIView {
 return menuView
}
override func menuViewHeightFor(_ pageController: ShazamPageViewController) -> CGFloat {
 return menuViewHeight
}

Update menuView's layout when main scroll view did scroll and check state when did end scoll

override func pageController(_ pageController: ShazamPageViewController, mainScrollViewDidScroll scrollView: UIScrollView) {
 menuView.updateLayout(scrollView)
}
override func pageController(_ pageController: ShazamPageViewController,
 mainScrollViewDidEndScroll scrollView: UIScrollView) {
 menuView.checkState()
}

Examples

License