CATransition 从顶部卷曲页面

Question

我想知道是否有人使用 CATRANSITION 从顶部管理卷页。我有以下内容：

CATransition *animation = [CATransition animation];
 [animation setDelegate:self];
 [animation setDuration:0.35];
 [animation setTimingFunction:UIViewAnimationCurveEaseInOut];
 animation.type = @"pageCurl";

 animation.subtype = kCATransitionFromTop;

 animation.fillMode = kCAFillModeForwards;

 animation.endProgress = 0.30;
 [animation setRemovedOnCompletion:NO];
 [self.view.layer addAnimation:animation forKey:@"pageCurlAnimation"];

但不幸的是，它总是从底部卷曲页面。如果有人能告诉我如何从顶部进行卷页，我将非常感激。

非常感谢。

Answer 1

我已经做到了这一点。您需要设置animation.type = @"pageUnCurl"; ——谁会想到！谢谢苹果。

CATransition *animation = [CATransition animation];
[animation setDelegate:self];
[animation setDuration:0.5];
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
animation.type = @"pageUnCurl";

animation.subtype = kCATransitionFromTop;
animation.fillMode = kCAFillModeForwards;
animation.startProgress = 0.3;
[animation setRemovedOnCompletion:NO];

[self.helpView.layer addAnimation:animation forKey:@"pageCurlAnimation"];

Answer 2

找到答案了，需要将子类型设置为从右开始！

Answer 3

subtype = KCATransitionFromLeft or KCATransitionFromRight 

如果你想要卷曲页面的完整动画，你也可以删除animation.endProgress。
=)