我有UICollectionView个水平图像列表代码.我想在滚动图像显示时添加PageControl，我添加了pagecontrol Select 器和IBOutlet，但如何将其集成到UICollecitonView之间？
我的代码如下:
class ViewController: UIViewController, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {
@IBOutlet weak var View : DesignableView!
@IBOutlet var collectionView: UICollectionView!
@IBOutlet var collectionViewLayout: UICollectionViewFlowLayout!
@IBOutlet open weak var pageControl: UIPageControl? {
didSet {
pageControl?.addTarget(self, action: #selector(ViewController.pageChanged(_:)), for: .valueChanged)
}
}
override func viewDidLoad() {
super.viewDidLoad()
pageControl?.numberOfPages = 11
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 11;
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell: ImageCollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "ImageCollectionViewCell", for: indexPath) as! ImageCollectionViewCell
cell.label.text = "Cell \(indexPath.row)"
cell.backgroundImageView.image = UIImage(named: "Parallax \(indexPath.row + 1)")
// Parallax cell setup
cell.parallaxTheImageViewScrollOffset(self.collectionView.contentOffset, scrollDirection: self.collectionViewLayout.scrollDirection)
return cell
}
@IBAction open func pageChanged(_ sender: UIPageControl) {
print(sender.currentPage)
}
// MARK: Delegate
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return collectionView.bounds.size;
}
// MARK: Scrolling
func scrollViewDidScroll(_ scrollView: UIScrollView) {
// Parallax visible cells
for cell: ImageCollectionViewCell in collectionView.visibleCells as! [ImageCollectionViewCell] {
cell.parallaxTheImageViewScrollOffset(self.collectionView.contentOffset, scrollDirection: self.collectionViewLayout.scrollDirection)
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}