是否可以在 Storyboard 中的视图控制器之间进行淡入和淡出转换。或者没有过渡。
如果可能,它的代码是什么?
如果呈现模态视图控制器,您可以指定一个modalTransitionStyle
of UIModalTransitionStyleCrossDissolve
。如果在情节提要中使用 segue 执行此操作,请选择 segue 的属性检查器,并在此处指定过渡样式:
如果以编程方式呈现视图控制器,您可以在情节提要中的视图控制器之间使用“Cross Dissolve”的“Transition”定义模态转场,然后让源视图控制器执行此转场:
[self performSegueWithIdentifier:@"presentSegue" sender:sender];
或者,如果您正在调用presentViewController
:
UIViewController *controller = [self.storyboard instantiateViewControllerWithIdentifier:@"YourStoryboardID"];
controller.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentViewController:controller animated:YES completion:nil];
在 iOS 7 中,Apple 提供了一项新技术,可为高度自定义的过渡提供丰富而强大的控制。有关详细信息,请参阅 WWDC 2013 视频Custom Transitions Using View Controllers。
但是,例如,如果您想自定义 iOS 7 中的 push 和 pop 动画以淡出,您可以delegate
为导航控制器指定 a
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationController.delegate = self;
}
然后,您将实现animationControllerForOperation
指定用于推送和弹出的动画器对象:
- (id<UIViewControllerAnimatedTransitioning>)navigationController:(UINavigationController *)navigationController
animationControllerForOperation:(UINavigationControllerOperation)operation
fromViewController:(UIViewController*)fromVC
toViewController:(UIViewController*)toVC
{
if (operation == UINavigationControllerOperationPush)
return [[PushAnimator alloc] init];
if (operation == UINavigationControllerOperationPop)
return [[PopAnimator alloc] init];
return nil;
}
您显然必须实现自定义推送和弹出动画师,例如:
@interface PushAnimator : NSObject <UIViewControllerAnimatedTransitioning>
@end
@implementation PushAnimator
- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext
{
return 0.5;
}
- (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext
{
UIViewController* toViewController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
[[transitionContext containerView] addSubview:toViewController.view];
toViewController.view.alpha = 0.0;
[UIView animateWithDuration:[self transitionDuration:transitionContext] animations:^{
toViewController.view.alpha = 1.0;
} completion:^(BOOL finished) {
[transitionContext completeTransition:![transitionContext transitionWasCancelled]];
}];
}
@end
和
@interface PopAnimator : NSObject <UIViewControllerAnimatedTransitioning>
@end
@implementation PopAnimator
- (NSTimeInterval)transitionDuration:(id <UIViewControllerContextTransitioning>)transitionContext
{
return 0.5;
}
- (void)animateTransition:(id<UIViewControllerContextTransitioning>)transitionContext
{
UIViewController* toViewController = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
UIViewController* fromViewController = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
[[transitionContext containerView] insertSubview:toViewController.view belowSubview:fromViewController.view];
[UIView animateWithDuration:[self transitionDuration:transitionContext] animations:^{
fromViewController.view.alpha = 0.0;
} completion:^(BOOL finished) {
[transitionContext completeTransition:![transitionContext transitionWasCancelled]];
}];
}
@end
自定义模态转换也有一种类似但略有不同的技术(尽管如果您只是做一张脸,您可能只会使用modalTransitionStyle
上面讨论的方法,除非您想采用其他一些细微的自定义)。有关更多信息,请参阅前面提到的使用视图控制器的自定义转换。
归根结底,iOS 7 的自定义转换是一种稍微复杂但非常强大的方法,可以对转换的动画提供巨大的控制。
为了创建自定义 Segue,创建 UIStoryboard segue 的子类。例如:
// MCFadeSegue.h
#import <UIKit/UIKit.h>
@interface MCFadeSegue : UIStoryboardSegue
@end
// MCFadeSegue.m
#import <QuartzCore/QuartzCore.h>
#import "MCFadeSegue.h"
@implementation MCFadeSegue
- (void)perform
{
CATransition *transition = [CATransition animation];
transition.duration = 0.5;
transition.type = kCATransitionFade;
[[[[[self sourceViewController] view] window] layer] addAnimation:transition
forKey:kCATransitionFade];
[[self sourceViewController]
presentViewController:[self destinationViewController]
animated:NO completion:NULL];
}
@end
然后在 MainStoryboard.storyboard 中选择 segue 并设置 Style:Custom 和 Class:MCFadeSegue。
在 Swift 中推送/弹出 UIVIewController FadeIn/FadeOut
class FadeInPushSegue: UIStoryboardSegue {
var animated: Bool = true
override func perform() {
if var sourceViewController = self.sourceViewController as? UIViewController, var destinationViewController = self.destinationViewController as? UIViewController {
var transition: CATransition = CATransition()
transition.type = kCATransitionFade; //kCATransitionMoveIn; //, kCATransitionPush, kCATransitionReveal, kCATransitionFade
sourceViewController.view.window?.layer.addAnimation(transition, forKey: "kCATransition")
sourceViewController.navigationController?.pushViewController(destinationViewController, animated: false)
}
}
}
class FadeOutPopSegue: UIStoryboardSegue {
override func perform() {
if var sourceViewController = self.sourceViewController as? UIViewController, var destinationViewController = self.destinationViewController as? UIViewController {
var transition: CATransition = CATransition()
transition.duration = 0.4
transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
transition.type = kCATransitionFade; //kCATransitionMoveIn; //, kCATransitionPush, kCATransitionReveal, kCATransitionFade
sourceViewController.view.window?.layer.addAnimation(transition, forKey: "kCATransition")
sourceViewController.navigationController?.popViewControllerAnimated(false)
}
}
}
试试这个。
let transition: CATransition = CATransition()
transition.duration = 0.4
transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
transition.type = kCATransitionFade
self.navigationController!.view.layer.addAnimation(transition, forKey: nil)
let vc = self.storyboard?.instantiateViewControllerWithIdentifier("vcID") as! My_ViewController
self.navigationController?.pushViewController(vc, animated: false)
无需创建自定义 segue,我将这段代码放在一起来呈现视图......
UIViewController *nextView = [[UIStoryboard storyboardWithName:@"Main" bundle:nil] instantiateViewControllerWithIdentifier:@"YOUR_VIEW_CONTROLLER_STORYBOARD_NAME"]; nextView.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; [self.navigationController presentViewController:nextView 动画:YES 完成:nil]; //(对于交叉溶解,设置动画:YES。对于无过渡,设置动画:NO。)
希望这对遇到这个问题的人有所帮助!
我的 Swift 版本,带有可选的检查课程!
let storyboard = UIStoryboard.init(name: "Main", bundle: nil)
if let stView = storyboard.instantiateViewControllerWithIdentifier("STVC") as? STVC {
stView.modalTransitionStyle = UIModalTransitionStyle.CrossDissolve
self.navigationController?.presentViewController(stView, animated: true, completion: nil)
}
只需确保在 IB 中设置“视图控制器”的 Storyboard ID
Swift 3语法中的 Push/Pop UIVIewController FadeIn/FadeOut ,基于Eugene Braginets的回答
class FadeInPushSegue: UIStoryboardSegue {
var animated: Bool = true
override func perform() {
let sourceViewController = self.source
let destinationViewController = self.destination
let transition: CATransition = CATransition()
transition.type = kCATransitionFade; //kCATransitionMoveIn; //, kCATransitionPush, kCATransitionReveal, kCATransitionFade
sourceViewController.view.window?.layer.add(transition, forKey: "kCATransition")
sourceViewController.navigationController?.pushViewController(destinationViewController, animated: false)
}
}
class FadeOutPopSegue: UIStoryboardSegue {
override func perform() {
let sourceViewController = self.source
let transition: CATransition = CATransition()
transition.duration = 0.4
transition.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
transition.type = kCATransitionFade; //kCATransitionMoveIn; //, kCATransitionPush, kCATransitionReveal, kCATransitionFade
sourceViewController.view.window?.layer.add(transition, forKey: "kCATransition")
_ = sourceViewController.navigationController?.popViewController(animated: false)
}
}
斯威夫特 5:
在花费数小时寻找正确的解决方案后,Rob 的解决方案满足了我的所有需求,经过一些调整后,它是完美的。
创建淡入淡出视图控制器类:
class FadeViewControllerTransition: NSObject, UIViewControllerAnimatedTransitioning {
var fadeOut: Bool = false
func transitionDuration(
using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.5
}
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
if fadeOut {
animateFadeOut(using: transitionContext)
return
}
let toViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to)!
transitionContext.containerView.addSubview(toViewController.view)
toViewController.view.alpha = 0.0
UIView.animate(withDuration: transitionDuration(using: transitionContext), animations: {
toViewController.view.alpha = 1.0
}, completion: { _ in
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
})
}
func animateFadeOut(using transitionContext: UIViewControllerContextTransitioning) {
let toViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to)!
let fromViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.from)!
transitionContext.containerView.insertSubview(toViewController.view, belowSubview: fromViewController.view)
UIView.animate(withDuration: transitionDuration(using: transitionContext), animations: {
fromViewController.view.alpha = 0.0
}, completion: { _ in
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
})
}
}
在导航控制器的第一个视图控制器中:
class MainViewController: UIViewController, UIViewControllerTransitioningDelegate, UINavigationControllerDelegate {
private let fadeVCTransition = FadeViewControllerTransition()
func navigationController(_ navigationController: UINavigationController, animationControllerFor operation: UINavigationController.Operation, from fromVC: UIViewController, to toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
fadeVCTransition.fadeOut = (operation == .pop)
return fadeVCTransition
}
就是这样。
我所做的是在 Interface Builder 中使用 Storyboard,连接了您需要移入/移出和移回的两个视图控制器(按住 ctrl 并将单击从源视图控制器拖动到目标视图控制器),并更改了 segue 属性。我使用了以下内容:
然后我使用了以下内容:
[self performSegueWithIdentifier:@"showMovieDetailSegue" sender:self];
当你想删除它时,只需从源视图控制器调用它:
[self dismissViewControllerAnimated:YES completion:nil];
简单而且非常快速。
这让我疯了几个小时。这些解决方案似乎都不是我想要的,我正在失去理智。最后想出了以下方法,它使用淡出/淡入转换在单个 NSWindow 中交换视图控制器。首先它执行淡出,然后在完成处理程序中,它将窗口的视图设置为新视图并执行淡入。也许有更好的方法来做到这一点,但这是我可以一起破解的最简单的方法.
class CustomSegue : NSStoryboardSegue {
override func perform() {
guard let fromController = sourceController as? NSViewController else {
return;
}
guard let toController = destinationController as? NSViewController else {
return;
}
let animationDuration = 0.5;
NSAnimationContext.runAnimationGroup({
$0.duration = animationDuration;
fromController.view.animator().alphaValue = 0.0;
}, completionHandler: {
fromController.view.window?.contentViewController = toController;
toController.view.alphaValue = 0.0;
NSAnimationContext.runAnimationGroup({
$0.duration = animationDuration;
toController.view.animator().alphaValue = 1.0;
})
});
}
}
Apple 文档中缺少示例让我想绞尽脑汁,Objective C 和 Swift 的混合无处不在……呸!
在没有过渡的情况下呈现: