最近进行Swfit4.0的学习 只感觉坑太深 慢慢爬
计算器的代码就不上了
嗯，创建个CollectionView不多说 上代码
func createCollectionView(){
let layout = UICollectionViewFlowLayout.init()
let cellWidth = view.bounds.width/7
layout.itemSize = CGSize.init(width:cellWidth,height:cellWidth+20)
layout.minimumLineSpacing = cellWidth/2
layout.minimumInteritemSpacing = cellWidth/2
layout.sectionInset = UIEdgeInsets.init(top: cellWidth/2-16, left: cellWidth/2, bottom: 70, right: cellWidth/2)
CV = UICollectionView.init(frame: CGRect(x:0,y:64,width:view.bounds.width,height:view.bounds.height/2),collectionViewLayout: layout)
CV.delegate = self
CV.dataSource = self
CV.backgroundColor = .white
view.addSubview(CV)
CV.register(Add_Cell.self, forCellWithReuseIdentifier: "cell")
}
扩展VC
extension ParticularViewController:UICollectionViewDelegate,UICollectionViewDataSource {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return self.array.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = CV.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! Add_Cell
let dict = self.array[indexPath.item] as! CategoryModel
cell.typeImgView.image = UIImage.init(named:dict.typeImg)
cell.typeLabel.text = dict.typeName
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let dict = self.array[indexPath.item] as! CategoryModel
keyboardView.typeLabel.text = dict.typeName
nameStr = dict.typeName! as NSString
imgStr = dict.typeImg! as NSString
isIncome = dict.isIncome
}
}
Add_Cell继承自UICollectionViewCell
class Add_Cell: UICollectionViewCell {
let width = UIScreen.main.bounds.size.width/7
var typeImgView:UIImageView!
var typeLabel:UILabel!
override init(frame: CGRect) {
super.init(frame: frame)
typeImgView = UIImageView(frame:CGRect(x:width/2-15,y:width/2-15,width:30,height:30))
self.addSubview(typeImgView!)
typeLabel = UILabel(frame:CGRect(x:0,y:width,width:width,height:20))
typeLabel.textAlignment = NSTextAlignment.center
self.addSubview(typeLabel!)
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
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