正文
super.init(frame: frame)
imageView.backgroundColor = UIColor.red
metadataView.backgroundColor = UIColor.green
for view in [imageView, metadataView] {
addSubview(view)
view.translatesAutoresizingMaskIntoConstraints = false
view.leadingAnchor.constraint(equalTo: self.layoutMarginsGuide.leadingAnchor).isActive = true
view.trailingAnchor.constraint(equalTo: self.layoutMarginsGuide.trailingAnchor).isActive = true
}
imageView.topAnchor.constraint(equalTo: self.layoutMarginsGuide.topAnchor).isActive = true
imageView.widthAnchor.constraint(equalTo: imageView.heightAnchor).isActive = true
metadataView.topAnchor.constraint(equalTo: imageView.bottomAnchor).isActive = true
metadataView.heightAnchor.constraint(equalToConstant: 25).isActive = true
metadataView.bottomAnchor.constraint(equalTo: self.layoutMarginsGuide.bottomAnchor).isActive = true
}
required public init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
final class ViewController: UICollectionViewController, UICollectionViewDelegateFlowLayout {
override func viewDidLoad() {
super.viewDidLoad()
self.collectionView!.contentInsetAdjustmentBehavior = .never
self.collectionView!.register(TestCell.self, forCellWithReuseIdentifier: "Cell")
}
// MARK: UICollectionViewDataSource
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 10
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
