IOS Swift3.1 打印视图生命周期

最新推荐文章于 2025-06-06 16:49:23 发布

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本文介绍了一个SwiftUI应用程序中ViewController类的实现，详细展示了视图控制器从加载到消失各个阶段的方法覆盖与使用，这对于理解SwiftUI中视图生命周期非常重要。

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {

super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//////////////////////////////////////////////////////////////////////
override func loadView() {
super.loadView()
print( object_getClass(self), "-->", #function )
}

override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
print( object_getClass(self), "-->", #function )
}

override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
print( object_getClass(self), "-->", #function )
}

override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
print( object_getClass(self), "-->", #function )
}

override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
print( object_getClass(self), "-->", #function )
}

override func viewWillDisappear(_ animated: Bool) {
super.viewDidAppear(animated)
print( object_getClass(self), "-->", #function )
}

override func viewDidDisappear(_ animated: Bool) {
super.viewDidAppear(animated)
print( object_getClass(self), "-->", #function )
}

//////////////////////////////////////////////////////////////////////
}