importUIKit
////
//// ViewController.swift
//// test
////
//// Created by Mac on 2023/5/30.
////
//
importUIKit
class ViewController: UIViewController,UICollectionViewDelegate,UICollectionViewDataSource,UICollectionViewDelegateFlowLayout {
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
letcell = collectionView.dequeueReusableCell(withReuseIdentifier:idenContentString,for: indexPath)as!MyTestCollectionViewCell
returncell
}
let screenWidth = UIScreen.main.bounds.width
let screenHeight = UIScreen.main.bounds.height
let idenContentString = "idenContentString"
let headIdenString = "headIdenString"
override func viewDidLoad() {
super.viewDidLoad()
self.automaticallyAdjustsScrollViewInsets = true
self .makeUICollectionView()
}
func makeUICollectionView()
{
// 设置 layOut
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = UICollectionView.ScrollDirection.vertical //滚动方向
layout.itemSize=CGSizeMake((screenWidth-30)/2,80)
// 设置CollectionView
letourCollectionView :UICollectionView=UICollectionView(frame:CGRectMake(0,0,screenWidth,screenHeight),collectionViewLayout: layout)
ourCollectionView.delegate=self
ourCollectionView.dataSource=self
ourCollectionView.backgroundColor= .white
ourCollectionView .register(MyTestCollectionViewCell.self,forCellWithReuseIdentifier:idenContentString)
self.view.addSubview(ourCollectionView)
}
//MARK: UICollectionViewDataSource
func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return1
}
funccollectionView(_collectionView:UICollectionView,numberOfItemsInSectionsection:Int) ->Int{
return60
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
letcell = collectionView.dequeueReusableCell(withReuseIdentifier:idenContentString,for: indexPathasIndexPath)as!MyTestCollectionViewCell
// 备注我们的小标题
letindexString =String(indexPath.row)
cell.myLabel.text="我的小标题_"+ indexString
// 获取随机颜色
// let colorValue1 :CGFloat! = CGFloat(CGFloat(random())/CGFloat(RAND_MAX))
// let colorValue2 :CGFloat! = CGFloat(CGFloat(random())/CGFloat(RAND_MAX))
// let colorValue3 :CGFloat! = CGFloat(CGFloat(random())/CGFloat(RAND_MAX))
cell.myImageView.backgroundColor= .red
returncell;
}
//MARK:UICollectionViewDelegate
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
print("tap ==\(indexPath.row)")
}
//MARK:UICollectionViewDelegateFlowLayout
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAtIndex section: Int) -> UIEdgeInsets{
returnUIEdgeInsets(top:5,left:10,bottom:5,right:10)
}
}
class MyTestCollectionViewCell: UICollectionViewCell {
override init(frame: CGRect) {
super.init(frame: frame)
// 由于测试，先不考虑 自动布局 后期可以考虑 SnapKit
self.myLabel.frame=CGRectMake(10,60, frame.size.width-20,20)
self.myImageView.frame=CGRectMake(10,0, frame.size.width-20,60)
self.contentView.backgroundColor = UIColor(red: 230/255.0, green: 230/255.0, blue: 230/255.0, alpha: 1.0)
self.contentView .addSubview(self.myLabel)
self.contentView .addSubview(self.myImageView)
}
requiredinit?(coderaDecoder:NSCoder) {
fatalError("init(coder:) has not been implemented")
}
varmyLabel:UILabel= {
letlabel =UILabel()
label.text="我的小标题"
label.textAlignment = .center
label.font=UIFont.systemFont(ofSize:12)
returnlabel
}()
var myImageView:UIImageView = {
letimageView =UIImageView()
imageView.backgroundColor = .lightGray
returnimageView
}()
}