CATransition是如何工作的？

Question

-(IBAction)jump2b:(id)sender{
CATransition *animation = [CATransition animation];
animation.delegate = self;
animation.duration = 0.25f;
animation.timingFunction = UIViewAnimationCurveEaseInOut;
animation.fillMode = kCAFillModeForwards;
animation.removedOnCompletion = NO;
animation.type = kCATransitionPush;
animation.subtype = kCATransitionFromTop;
   [bView.view.layer addAnimation:animation forKey:@"animation"];
 }

它不能很好地工作，它可以跳跃，那我能做什么?谢谢

Answer 1

你忘了在最后实际添加视图...

-(IBAction)jump2b:(id)sender{
    CATransition *animation = [CATransition animation];
    animation.delegate = self;
    animation.duration = 0.25f;
    animation.timingFunction = UIViewAnimationCurveEaseInOut;
    animation.fillMode = kCAFillModeForwards;
    animation.removedOnCompletion = NO;
    animation.type = kCATransitionPush;
    animation.subtype = kCATransitionFromTop;
    [bView.view.layer addAnimation:animation forKey:@"animation"];

    //add bView to current view
    [self.view addSubview:bView];
}

你不使用UIView动画块有什么原因吗？这是从iOS 4开始推荐的动画方法。使用UIView的transitionFromView:toView:duration:options:completion:应该对你有效……

[UIView transitionFromView:aView 
                    toView:bView 
                  duration:0.25 
                   options: (UIViewAnimationCurveEaseInOut | UIViewAnimationOptionTransitionCurlUp)
                completion:nil];

我使用UIViewAnimationOptionTransitionCurlUp作为转换选项的示例，但您可以选择任何UIViewAnimationOption。