我有一个简单的UICollectionViewController,它返回X个单元格。我想拥有它,所以当选择一个单元格时,特定的选定单元格会改变它的大小,并且随着所有其他单元格保持不变而变得更大。我该如何实现这一目标?这是我的代码:
class HomeController: UICollectionViewController, UICollectionViewDelegateFlowLayout {
let cellId = "cellId"
override func viewDidLoad() {
super.viewDidLoad()
collectionView?.backgroundColor = UIColor(white: 0.90, alpha: 1.0)
collectionView?.register(PostCell.self, forCellWithReuseIdentifier: cellId)
collectionView?.showsVerticalScrollIndicator = false
collectionView?.alwaysBounceVertical = true
}
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 4
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath) as! PostCell
return cell
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
let height = (view.frame.width) * 9 / 16
return CGSize(width: view.frame.width, height: height + 50 + 50)
}
}
答案 0 :(得分:10)
您可以查看是否已选择/* Attempting to display any redundant pipe Info here if it exist */
redundantPipeInfo();
中的@types/bluebird-global
。如果是,则返回不同的高度,否则返回标准高度。
indexPath