IOS在同一屏幕上的子viewControllers之间转换
在 iOS 开发中，在同一屏幕上的子 ViewControllers 之间转换是一种常见的场景。以下是实现此功能的一些建议和步骤：
- 使用 UIViewControllerTransitionCoordinator
使用 UIViewControllerTransitionCoordinator 可以方便地在两个子 ViewControllers 之间实现动画过渡。以下是一个简单的例子：
import UIKit
class FirstViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Customize the view accordingly
}
}
class SecondViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Customize the view accordingly
}
}
class ViewController: UIViewController, UIViewControllerTransitionCoordinator {
let firstViewController = FirstViewController()
let secondViewController = SecondViewController()
override func viewDidLoad() {
super.viewDidLoad()
// Add the first and second view controllers
addChildViewController(firstViewController)
addChildViewController(secondViewController)
// Set the initial view controller
setViewControllers([firstViewController], direction: .forward, animated: true, completion: nil)
}
}- 使用Storyboard
在 Storyboard 中，你可以使用 UIViewControllerTransitionCoordinator 实现 ViewController 之间的过渡效果。以下是一个例子：
import UIKit
class FirstViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Customize the view accordingly
}
}
class SecondViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
// Customize the view accordingly
}
}
class ViewController: UIViewController {
let firstViewController = FirstViewController()
let secondViewController = SecondViewController()
override func viewDidLoad() {
super.viewDidLoad()
// Add the first and second view controllers
addChildViewController(firstViewController)
addChildViewController(secondViewController)
// Set the initial view controller
setViewControllers([secondViewController], direction: .forward, animated: true, completion: nil)
// Add the first and second view controllers to the container view
let containerView = UIView(frame: view.frame)
addSubview(containerView)
containerView.addSubview(firstViewController.view)
containerView.addSubview(secondViewController.view)
}
}- 手动实现过渡效果
你还可以手动实现两个 ViewController 之间的过渡效果。例如，你可以创建一个新的 UIView，将其添加到屏幕顶部，并在其中播放两个 ViewController 之间的过渡动画。在 viewDidLoad 方法中添加以下代码：
import UIKit
class FirstViewController: UIViewController {
override func viewDidLoad() { super.viewDidLoad() // Customize the view accordingly}}
class SecondViewController: UIViewController {
override func viewDidLoad() { super.viewDidLoad() // Customize the view accordingly}}
class ViewController: UIViewController {
let firstViewController = FirstViewController()let secondViewController = SecondViewController()override func viewDidLoad() { super.viewDidLoad() // Add the first and second view controllers addChildViewController(firstViewController) addChildViewController(secondViewController) // Set the initial view controller setViewControllers([secondViewController], direction: .forward, animated: true, completion: nil) // Add the first and second view controllers to the container view let containerView = UIView(frame: view.frame) addSubview(containerView) containerView.addSubview(firstViewController.view) containerView.addSubview(secondViewController.view) // Add the custom transition view to the container view let transitionView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100)) transitionView.backgroundColor = UIColor.red containerView.addSubview(transitionView) // Present the second view controller secondViewController.view.frame = view.frame secondViewController.view.alpha = 0 transitionView.frame = CGRect(相关·内容
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