CATransition的简单使用
?1.#define定义的常量?
???? kCATransitionFade?? 交叉淡化过渡?
???? kCATransitionMoveIn 新视图移到旧视图上面?
???? kCATransitionPush?? 新视图把旧视图推出去?
???? kCATransitionReveal 将旧视图移开,显示下面的新视图?
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?2.用字符串表示?
???? pageCurl??????????? 向上翻一页?
???? pageUnCurl????????? 向下翻一页?
???? rippleEffect??????? 滴水效果?
???? suckEffect????????? 收缩效果，如一块布被抽走?
???? cube??????????????? 立方体效果?
???? oglFlip???????????? 上下翻转效果
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????????????? 示例：
?CATransition *animation=[CATransition animation];
?animation.delegate=self;
?animation.duration=1.0f;?animation.timingFunction=UIViewAnimationCurveEaseInOut;
?animation.type=kCATransitionMoveIn;
?animation.subtype=kCATransitionFromTop;
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