[Swift]UIViewController

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import UIKit

class StandardViewController: UIViewController {

    //1、视图即将显示
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
       
    }
    
    //2、UIKit将更新当前布局边距
    @available(iOS 11.0, *)
    override func viewLayoutMarginsDidChange() {
        super.viewLayoutMarginsDidChange()
        
    }
    
    //3、UIKit将更新安全区域内边距
    @available(iOS 11.0, *)
    override func viewSafeAreaInsetsDidChange() {
        super.viewSafeAreaInsetsDidChange()
        
    }
    
    //4、将要布局子空间
    override func viewWillLayoutSubviews() {
        super.viewWillLayoutSubviews()
        
    }
      
    //5、已布局子空间
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        
    }
        
    //6、视图已经出现
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
    }

    //7、最后即将显示视图
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        
    }
    
    //8、视图即将消失
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)

    }
    
    //9、视图已消失
    override func viewDidDisappear(_ animated: Bool) {
        super.viewDidDisappear(animated)
        
    }
    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destination.
        // Pass the selected object to the new view controller.
    }
    */
}