我希望使用函数在CollectionView的单元格中更改circleView和text中的文本。
我的细胞类别:
class CustomCell: UICollectionViewCell {
override init(frame: CGRect) {
super.init(frame: frame)
setupViews()
}
var timerLabel:UILabel = {
let label = UILabel()
label.text = "5"
label.frame = CGRect(x: 200, y: 10, width: 60, height: 60)
label.backgroundColor = .white
label.textAlignment = NSTextAlignment.center
return label
}()
var circleView: UIView = {
let circleView = UIView()
circleView.frame = CGRect(x: 100, y: 10, width: 60, height: 60)
circleView.backgroundColor = .red
circleView.layer.cornerRadius = 30
circleView.layer.masksToBounds = true
return circleView
}()
func setupViews() {
backgroundColor = .white
addSubview(timerLabel)
addSubview(circleView)
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setupViews()
}
}
在VC中创建CollectionView:
func collectionViewSet() {
collectionView?.frame.size.height = (view.frame.height / 100) * 70
collectionView?.backgroundColor = .white
collectionView?.register(CustomCell.self, forCellWithReuseIdentifier: cellId)
}
//-------------- (CollectionView Configure) -------------------
override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 5
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width:view.frame.width ,height: collectionView.frame.height / 6)
}
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId , for: indexPath)
customCell.tag = indexPath.row + 1
return cell
}
在我创建的func例如setColor()中,我希望为CircleView生成ranodm颜色(通过UIColor)并为TimerLable生成随机数,但仅在一个单元格中生成。对于下一个单元格,我想生成另一种颜色和数字。有没有办法做到这一点,我正在尝试使用indexPath.row和func didselectedItemForindexPath,但它根本不起作用。也许我做错了什么。
答案 0 :(得分:1)
好的,我找到了答案。如果有人会遇到类似问题,我会发布我的代码:)
for x in 0...4{
let indexPath = IndexPath(row: x, section: 0)
guard let cell = collectionView?.cellForItem(at: indexPath) as? CustomCell else {
return
}
cell.circleView.backgroundColor = .blue
}
答案 1 :(得分:0)
有很多很多例子可以生成随机颜色和数字 - 快速搜索,你可以有很多选择。
选择一对夫妻后,请将cellForItemAt
功能更改为:
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId , for: indexPath)
customCell.tag = indexPath.row + 1
let randColor = myRandomColorFunc()
let randNumber = myRandomNumberFunc()
customCell.circleView.backgroundColor = randColor
customCell.timerLabel.text = "\(randNumber)"
return cell
}