25.swift-UIView(纯代码自定义)

1.实现

///发布界面的自定义titleView
class ComposeTitleView: UIView {
    
    // 标题
    private lazy var titleLabel = UILabel()
    /// 昵称
    private lazy var screenNameLabel = UILabel()
    

    ///自定义构造函数
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    
}

//MARK:- 设置界面
extension ComposeTitleView {
    func setupUI() {
        
        //1.添加
        addSubview(titleLabel)
        addSubview(screenNameLabel)
        
        //2.frame
//        titleLabel.snp.makeConstraints { (make) in
//            make.centerX.equalTo(self)
//            make.top.equalTo(self)
//        }
//        screenNameLabel.snp.makeConstraints { (make) in
//            make.centerX.equalTo(titleLabel.snp.centerX)
//            make.top.equalTo(titleLabel.snp.bottom).offset(3)
//        }
        
        titleLabel.frame = CGRect.init(x: 0, y: 0, width: 200, height: 20)
        screenNameLabel.frame = CGRect.init(x: 0, y: 22, width: 200, height: 20)
        
        //3.属性
        titleLabel.font = UIFont.systemFont(ofSize: 15)
        titleLabel.textAlignment = .center
        screenNameLabel.font = UIFont.systemFont(ofSize: 13)
        screenNameLabel.textColor = UIColor.lightGray
        screenNameLabel.textAlignment = .center
        
        //4.文字
        titleLabel.text = "发微博"
        screenNameLabel.text = UserInfoViewModel.shareInstance.info?.screen_name
    }
}

2.调用

///懒加载titleView
    private lazy var titleV = ComposeTitleView()