十月第四周

1.Swift的map：

potStructs.map { PotMaterial($0) }

https://www.cnblogs.com/muzijie/p/6542650.html

2.Swift Precondition 预处理：
https://www.cnblogs.com/QianChia/p/8673714.html

3.iOS 优化ipa包，减小安装包大小：
https://www.jianshu.com/p/a49d59b01669

https://www.jianshu.com/p/a72d03e92c80

4.设置页面横竖屏：

class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    
    // 页面的横竖屏 当前界面支持的方向（默认情况下只能竖屏，不能横屏显示）
    var interfaceOrientations: UIInterfaceOrientationMask = .portrait {
        didSet {
            // 强制设置成竖屏
            if interfaceOrientations == .portrait {
                UIDevice.current.setValue(UIDeviceOrientation.portrait.rawValue, forKey: "orientation")
            }
            // 强制设置成横屏
            else if !interfaceOrientations.contains(.portrait) {
                UIDevice.current.setValue(UIDeviceOrientation.landscapeLeft.rawValue, forKey: "orientation")
            }
        }
    }
    
    func application(_ application: UIApplication, supportedInterfaceOrientationsFor window: UIWindow?) -> UIInterfaceOrientationMask {
        return interfaceOrientations
    }

// 使用
class DetailViewController1: UIViewController {

    // Applegate对象
    let appDelegate = UIApplication.shared.delegate as! AppDelegate
    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = UIColor.white
        setupUI()
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        // 该页面横竖屏切换
        appDelegate.interfaceOrientations = .allButUpsideDown
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        // 退出页面强制竖屏
        appDelegate.interfaceOrientations = .portrait
    }

5.didMoveToSuperView和didMoveToWindow的调用顺序：
didMoveToSuperView -> viewWillAppear -> didMoveToWindow -> viewDidAppear

6.正确使用可选类型：
https://www.jianshu.com/p/448cf4f8cf65

7.Git正确使用分支：
不需要每次都重新拉取创建新分支，新功能才需要创建新分支。
功能分支合到主分支要及时的删除无用的分支，以免分支太多影响管理。

8.获取UUID:

let UUID:String = ASIdentifierManager.shared().advertisingIdentifier.uuidString

9.属性.classForCoder：
编码器快捷类。

print(self.view.classForCoder)

输出：UIView