(NSTimeInterval)duration
对于UIModalTransitionStyleFlipHorizontal
的默认值是什么,这与-[UIViewController presentModalViewController:animated:]
有关?UIModalTransitionStyleFlipHorizontal animation duration?
5
A
回答
1
如果你问什么时间的默认值是当你不明确设置它的动画,答案是在框架头部中提供:
* If the `duration' property of the animation is zero or negative it * is given the default duration, either the value of the * `animationDuration' transaction property or .25 seconds otherwise.
所以,既然你不能在方法调用中设置值,它应该花费四分之一秒来执行动画。
+0
谢谢。我实际上认为,通过眼睛来判断,它更像'UIModalTransitionStyleFlipHorizontal'的'0.75'。 – ma11hew28
+0
我同意。我很惊讶地发现这在头上。我想知道是否将3个动画链接在一起以获得最终效果。 –
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[NSTimeInterval](http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Miscellaneous/Foundation_DataTypes/Reference/reference.html)是一个double(typedef),它指定了数字动画应该持续的秒数。除此之外,我不确定你在问什么。 – titaniumdecoy