swift学习之旅--实现一个自定义cell的tableView

不说便宜话了，直接上代码

image

controller

import UIKit
let screen_width = UIScreen.main.bounds.size.width
let screen_height = UIScreen.main.bounds.size.height
let windowKey = UIApplication.shared.windows.filter {$0.isKeyWindow}.first
func STATUSBAR_HEIGHT() -> CGFloat {return windowKey?.windowScene?.statusBarManager?.statusBarFrame.height ?? 0}
func RGB_COLOR(r:CGFloat, g:CGFloat, b:CGFloat) -> UIColor {return UIColor(red: r, green: g, blue: b, alpha: 1)}


class TestViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
    let cellIdentifierOne = "TestOneCell.Type.self"
    lazy var tableView:UITableView = {
        var tableViewTemp:UITableView = UITableView(frame: CGRect(x: 0, y: 0, width: screen_width, height: screen_height))
        tableViewTemp.delegate = self
        tableViewTemp.dataSource = self
        tableViewTemp .register(TestOneCell.classForCoder(), forCellReuseIdentifier: cellIdentifierOne)
        tableViewTemp.tableFooterView = UIView.init() //去掉尾部无数据的多余cell
        return tableViewTemp
    }()
    var array:[String] = ["纯代码自定义cell","nib自定义cell"]
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return array.count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        var cell:TestOneCell? = tableView.dequeueReusableCell(withIdentifier: cellIdentifierOne, for: indexPath) as? TestOneCell
        if cell == nil {
            cell = TestOneCell.init()
        }
        cell?.titleLabel.text = array[indexPath.row]
        cell?.selectionStyle = UITableViewCell.SelectionStyle.none
        return cell!
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 60
    }
    
    //cell 点击事件
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        switch indexPath.row {
        case 1:
            print("didSelectRow1")
            break
        default:
            print("default")
        }
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.navigationItem.title = "UITableView by Jerold"
        self.view.backgroundColor = UIColor.white
        self.view.addSubview(tableView)
        
        
        
    }
    

}

cell

import UIKit



class TestOneCell: UITableViewCell {
    func commonInit() -> Void {
        self.contentView.addSubview(self.imageViewOne)
        self.contentView.addSubview(self.titleLabel)
    }
    
    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }

    override func setSelected(_ selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)

        // Configure the view for the selected state
    }
    
    lazy var imageViewOne:UIImageView = {
        var imageView:UIImageView = UIImageView.init(frame: CGRect(x: 0, y: 0, width: 50, height: 50))
        imageView.backgroundColor = UIColor.gray
        return imageView;
    }()
    
    lazy var titleLabel: UILabel = {
        var titleLab:UILabel = UILabel.init(frame: CGRect(x: 60, y: 0, width: screen_width - 60 - 32, height: self.contentView.frame.size.height))
        titleLab.textColor = UIColor.black
        titleLab.textAlignment = NSTextAlignment.left
        titleLab.numberOfLines = 1
        titleLab.font = UIFont.systemFont(ofSize: 16)
        return titleLab
    }()
    
    override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        commonInit()
    }
    
    
    required init?(coder: NSCoder) {
        super.init(coder: coder)
        fatalError("init(coder:) has not been implemented")
    }
    
}