行のセル間のサイズを小さくしたい。次のようになります。
それらの間のサイズを小さくするために、私はこれを試しています:
let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
layout.sectionInset = UIEdgeInsets(top: 20, left: 2, bottom: 10, right: 2)
layout.minimumInteritemSpacing = 0
layout.minimumLineSpacing = 0
しかし、それは私を助けません。私が間違っていることは何ですか?
//Objective C
- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
return CGSizeMake((collectionView.frame.size.width/3)-20, 100);
}
// Swift 2.0
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
return CGSizeMake((collectionView.frame.size.width / 3) - 20, 100)
}
// Swift 3.0
override func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: CGFloat((collectionView.frame.size.width / 3) - 20), height: CGFloat(100))
}
コードで、コレクションビューにIBOutletを作成し、collectionViewLayoutを次のように割り当てる必要があります。
let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
layout.sectionInset = UIEdgeInsets(top: 20, left: 2, bottom: 10, right: 2)
layout.minimumInteritemSpacing = 0
layout.minimumLineSpacing = 0
collectionView!.collectionViewLayout = layout
簡単だ
let layout = contactsCollectionView.collectionViewLayout as? UICollectionViewFlowLayout
layout?.minimumLineSpacing = 8
lazy var collectionView: UICollectionView = {
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = .horizontal
//Provide Width and Height According to your need
let width = UIScreen.main.bounds.width / 4
let height = UIScreen.main.bounds.height / 10
layout.itemSize = CGSize(width: width, height: height)
//Make Space as Zero
layout.minimumInteritemSpacing = 0
layout.minimumLineSpacing = 0
return UICollectionView(frame: self.view.frame, collectionViewLayout: layout)
}()
lazy collectionView
ブロック内でより多くのカスタマイズを提供できます。
extension ViewController: UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
let collectionWidth = collectionView.bounds.width
return CGSize(width: collectionWidth, height: collectionWidth/2)
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAt section: Int) -> CGFloat {
return 0
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAt section: Int) -> CGFloat {
return 100
}
}
(スイフト4)