CATransaction 动画淡入淡出 uiviews

Question

我有两个视图，jumpBarPortrait 和 jumpBarLandscape 我想在两者之间制作动画，换句话说，我希望在风景淡出时人像淡入...到目前为止，我可以淡入其中一个，但我不能确定如何让另一个淡出...

这是我目前的代码..

[CATransaction begin];
CATransition *animation = [CATransition animation];
animation.type = kCATransitionFade;
animation.duration = animationSpeed;

[self.view insertSubview:jumpBarContainerPortrait belowSubview:actionTabBar];

[[jumpBarContainerPortrait layer] addAnimation:animation forKey:@"Fade"];
[CATransaction commit];

任何帮助将不胜感激。

Answer 1

你看过这个方法吗……

        [UIView transitionFromView:jumpBarContainerPortrait
                            toView:jumpBarContainerLandscape
                          duration:0.5
                           options:UIViewAnimationOptionTransitionCrossDissolve
                        completion:^(BOOL finished) {}];

或者将fromView/toView翻转回来。

Answer 2

您插入视图以淡入但不删除视图淡出，试试这个：

[CATransaction begin];
CATransition *animation = [CATransition animation];
animation.type = kCATransitionFade;
animation.duration = animationSpeed;

[self.view insertSubview:jumpBarContainerPortrait belowSubview:actionTabBar];
[[jumpBarContainerPortrait layer] addAnimation:animation forKey:@"Fade"];

[fadeOutView removeFromSuperview];
[[fadeOutView layer] addAnimation:animation forKey:@"Fade"];

[CATransaction commit];