Ios 用转换显示viewController
在实例化和呈现viewcontroller时,是否可以定义转换类型 这段代码生成一个默认的淡入淡出类型转换,但我需要它从左到右显示,这是可能的吗 谢谢大家!Ios 用转换显示viewController,ios,swift,uinavigationcontroller,swrevealviewcontroller,Ios,Swift,Uinavigationcontroller,Swrevealviewcontroller,在实例化和呈现viewcontroller时,是否可以定义转换类型 这段代码生成一个默认的淡入淡出类型转换,但我需要它从左到右显示,这是可能的吗 谢谢大家! @IBAction func botonVolverFamilias(_ sender: Any) { let sw = revealViewController() self.view.window?.rootViewController = sw let viewControllerModelos = stor
@IBAction func botonVolverFamilias(_ sender: Any) {
let sw = revealViewController()
self.view.window?.rootViewController = sw
let viewControllerModelos = storyboard!.instantiateViewController(withIdentifier: "vc_catalogo_familias") as! VC_catalogo
let navigationController = UINavigationController(rootViewController: viewControllerModelos)
navigationController.navigationBar.isHidden=false
navigationController.setNavigationBarHidden(true, animated: false)
sw!.setFront(navigationController, animated: true)
}
要更改
UINavigationController
的转换,需要在堆栈中找到第一个UIViewController
。您应该将此UIViewController
扩展为UIViewControllerTransitioningDelegate
和UINavigationControllerDelegate
然后可以调用func navigationController(navigationController:UINavigationController,animationControllerFor operation:UINavigationController.operation,从vc:UIViewController到vc:UIViewController)->UIViewControllerAnimatedTransitioning?
定义您希望为新的UIViewControllers
呈现的转换类型
因此,为了做到这一点,我们必须创建一个自定义的UIViewControllerAnimatedTransitioning
类,并在这个uiviewcontrollertransitiondelegate
方法中返回它。下面是我使用的示例
import UIKit
class SimpleOver: NSObject, UIViewControllerAnimatedTransitioning {
var direction: TransitionDirection!
init(direction: TransitionDirection) {
self.direction = direction
}
var popStyle: Bool = false
func transitionDuration(
using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.20
}
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
if popStyle {
animatePop(using: transitionContext)
return
}
let fz = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.from)!
let tz = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to)!
let f = transitionContext.finalFrame(for: tz)
let fOff = f.offsetBy(dx: f.width, dy: 0)
tz.view.frame = fOff
transitionContext.containerView.insertSubview(tz.view, aboveSubview: fz.view)
UIView.animate(
withDuration: transitionDuration(using: transitionContext),
animations: {
tz.view.frame = f
for subview in fz.view.subviews {
subview.alpha = 0
}
}, completion: {_ in
transitionContext.completeTransition(true)
})
}
func animatePop(using transitionContext: UIViewControllerContextTransitioning) {
let fz = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.from)!
let tz = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to)!
let f = transitionContext.initialFrame(for: fz)
let fOffPop = f.offsetBy(dx: f.width, dy: 0)
transitionContext.containerView.insertSubview(tz.view, belowSubview: fz.view)
UIView.animate(
withDuration: transitionDuration(using: transitionContext),
animations: {
fz.view.frame = fOffPop
for subview in tz.view.subviews {
subview.alpha = 1
}
}, completion: {_ in
transitionContext.completeTransition(true)
})
}
}
enum TransitionDirection {
case left
case right
}
然后,在我们的func navigationController(\uNavigationController:UINavigationController,AnimationController for operation:UINavigationController.operation,从VC:UIViewController到VC:UIViewController)->UIViewControllerAnimatedTransitioning?
方法中,我们只需返回此UIViewControllerAnimatedTransitioning
,如下所示:
extension YourViewController: UIViewControllerTransitioningDelegate, UINavigationControllerDelegate {
func navigationController(
_ navigationController: UINavigationController,
animationControllerFor operation: UINavigationController.Operation,
from fromVC: UIViewController,
to toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
//This tells our navigation controller the style that we want to animate our transition between view controllers
let simpleOver = SimpleOver(direction: .right)
simpleOver.popStyle = (operation == .pop)
return simpleOver
}
}
你可以跟我说
let sw = revealViewController()
self.view.window?.rootViewController = sw
let viewControllerModelos = storyboard!.instantiateViewController(withIdentifier: "vc_catalogo_familias") as! VC_catalogo
let navigationController = UINavigationController(rootViewController: viewControllerModelos)
navigationController.navigationBar.isHidden=false
navigationController.setNavigationBarHidden(true, animated: false)
let trans = CATransition()
trans.duration = 0.5
trans.type = kCATransitionPush
trans.subtype = kCATransitionFromLeft
trans.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
sw.view.window!.layer.add(trans, forKey: kCATransition)
sw!.setFront(navigationController, animated: true)
我实际上已经有了这样的代码,当将视图控制器推入导航堆栈时,它会从左向右或从右向左滑动。