iphone - 用于 segue 动画的 CATransition(iOS 7 之前的样式)

Question

我有一个自定义转场，试图复制 iOS 7 之前样式的推送/弹出转场:

viewControllers 并排动画，没有变暗。(真的有那么难吗!)

下面的代码有效，除了:

• 退出页面在退出时变暗
• 进入页面在进入时是黑色的(随着移动到位逐渐变正常)

这些图片说明了问题:

然后...

有没有办法阻止这种变暗的效果？如果您能提供帮助，我将不胜感激。

-(void)perform
{
    UIViewController *source = self.sourceViewController;
    UIWindow *window = source.view.window;

    CATransition *transition = [CATransition animation];
    [transition setDuration:2.0];
    [transition setDelegate:self];
    [transition setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]];
    [transition setType:@"push"];
    [transition setSubtype:kCATransitionFromRight];

    [window.layer addAnimation:transition forKey:kCATransition];
    [window setRootViewController:self.destinationViewController];
}

Answer 1

这 2 个函数对我来说工作正常，尽管代码与您的非常相似，但我希望它能有所帮助。

+(void) modalRight:(UIViewController*)vc destvc:(UIViewController*)viewCtrl{
    CATransition *transition = [CATransition animation];
    transition.duration = 0.3;
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype = kCATransitionFromRight;
    [vc.view.window.layer addAnimation:transition forKey:nil];
    [vc presentModalViewController:viewCtrl animated:NO];
}

+(void) modalLeft:(UIViewController*)vc{
    CATransition *transition = [CATransition animation];
    transition.duration = 0.3;
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype = kCATransitionFromLeft;
    [vc.view.window.layer addAnimation:transition forKey:nil];
    [vc dismissModalViewControllerAnimated:NO];
}