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RazzleDazzle 是IFTTT开源的一个iOS帧动画框架，用Swift编写，非常适用于APP初次使用时的介绍和引导信息。RazzleDazzle由IFTTT此前开源的一款Objective-C滚动帧动画库JazzHands发展而来。JazzHands是UIKit一个简单的关键帧基础动画框架，可通过手势、scrollview、KVO或者ReactiveCocoa控制动画，被IFTTT应用在IFTTT for iPhone上。多款知名应用程序都使用了JazzHands这个框架，目前其在github上有3688个star。对于RazzleDazzle，开发者除了使用RazzleDazzle支持的动画类型外，还可以使用自定义动画类型。
RazzleDazzle支持的动画类型：
AlphaAnimation animates the alpha property (creates fade effects).
BackgroundColorAnimation animates the backgroundColor property.
RotationAnimation animates a rotation transform (for rotation effects).
ScaleAnimation applies a scaling transform (to scale view sizes).
TranslationAnimation applies a translation transform (to translate view position).
CornerRadiusAnimation animates the layer.cornerRadius property.
HideAnimation animates the hidden property (hides and shows views).
LayerStrokeStartAnimation animates the strokeStart property of a CAShapeLayer (does not work with LayerStrokeEndAnimation).
LayerStrokeEndAnimation animates the strokeEnd property of a CAShapeLayer (does not work with LayerStrokeStartAnimation).
LayerFillColorAnimation animates the fillColor property of a CAShapeLayer.
LayerStrokeColorAnimation animates the strokeColor property of a CAShapeLayer.
PathPositionAnimation animates the layer.position property of a UIView along a path.
LabelTextColorAnimation animates the textColor property of a UILabel.
ConstraintConstantAnimation animates an AutoLayout constraint constant.
ConstraintMultiplierAnimation animates an AutoLayout constraint constant as a multiple of an attribute of another view (to offset or resize views based on another view‘s size)
ScrollViewPageConstraintAnimation animates an AutoLayout constraint constant to place a view on a scroll view page (to position views on a scrollView using AutoLayout). This is the animation doing the heavy lifting for AnimatedPagingScrollViewController‘s keepView(view: onPage:) function.
[转]IFTTT开源Swift编写的帧动画框架--RazzleDazzle
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原文地址：http://www.cnblogs.com/duelsol/p/4676709.html
