进入本文章，相信大家都知道，iOS 动画 及 图形设计是iOS开发中的一大难点，本文主要讲解Fecebook 提供的 PoP 使用教程，提供PoP API 及 属性进行中文解释。以便大家更快的掌握 Fecebook PoP，不废话，马上进入话题，请往下看。

Pop是一个用于iOS，tvOS和OS X的可扩展的动画引擎。除了基本的静态动画，它支持弹簧和衰减动态动画，使它对建立真实的基于物理的交互有用。API允许快速集成现有的Objective-C代码库，并支持任何对象上的任何属性的动画。它是一个成熟和经过良好测试的框架，驱动纸张中的所有动画和过渡。

＃5步骤使用Facebook PoP＃

// 1.选择一种动画// 

POPBasicAnimation POPSpringAnimation POPDecayAnimation 

POPSpringAnimation * basicAnimation = [POPSpringAnimation animation];

// 2.决定天气，你会动画视图属性或图层特性，让我们选择一个视图属性并挑选kPOPViewFrame

//查看属性-

 kPOPViewAlpha 

kPOPViewBackgroundColor 

kPOPViewBounds

 kPOPViewCenter 

kPOPViewFrame

 kPOPViewScaleXY

 kPOPViewSize

//图层属性- 

kPOPLayerBackgroundColor 

kPOPLayerBounds 

kPOPLayerScaleXY 

kPOPLayerSize 

kPOPLayerOpacity 

kPOPLayerPosition 

kPOPLayerPositionX 

kPOPLayerPositionY 

kPOPLayerRotation 

kPOPLayerBackgroundColorbasicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewFrame];

//3.计算出哪三种方法来设置toValue

//anim.toValue = @（1.0）;

//anim.toValue = [NSValue valueWithCGRect：CGRectMake（0，0，400，400）];

//anim.toValue = [NSValue valueWithCGSize：CGSizeMake（40，40）];

//basicAnimation.toValue = [NSValuevalueWithCGRect：CGRectMake（0，0，90，190）];

//4.为动画和设置代理创建名称basicAnimation.name =@“AnyAnimationNameYouWant”;basicAnimation.delegate = self

//5.添加动画到View或Layer，我们选择View so self.tableView而不是layer self.tableView.layer[self.tableViewpop_addAnimation：basicAnimationforKey：@“WhatEverNameYouWant”];

步骤1选择种类的动画

POPBasicAnimation

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.timingFunction = [CAMediaTimingFunctionfunctionWithName：kCAMediaTimingFunctionLinear];

//kCAMediaTimingFunctionLinear kCAMediaTimingFunctionEaseIn kCAMediaTimingFunctionEaseOut kCAMediaTimingFunctionEaseInEaseOut

POPSpringAnimation

POPSpringAnimation * springAnimation = [POPSpringAnimationanimation];springAnimation.velocity = @（1000）;

//每秒值单位的变化springAnimation.springBounciness =14;

//value between 0-20 default at 4springAnimation.springSpeed =3;//value between 0-20 default at 4

POPDecayAnimation

POPDecayAnimation * decayAnimation = [POPDecayAnimationanimation];decayAnimation.velocity = @（233）;

//每秒值单位变化decayAnimation.deceleration =。833;//范围0到1

例子

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];

步骤2决定是否对视图属性或图层属性进行动画处理

查看属性

Alpha-kPOPViewAlpha

颜色 - kPOPViewBackgroundColor

大小 - kPOPViewBounds

中心 - kPOPViewCenter

位置和大小 - kPOPViewFrame

大小 - kPOPViewScaleXY

大小（缩放） - kPOPViewSize

图层属性

颜色 - kPOPLayerBackgroundColor

大小 - kPOPLayerBounds

大小 - kPOPLayerScaleXY

大小 - kPOPLayerSize

不透明度 - kPOPLayerOpacity

位置 - kPOPLayerPosition

X位置 - kPOPLayerPositionX

Y位置 - kPOPLayerPositionY

旋转 - kPOPLayerRotation

颜色 - kPOPLayerBackgroundColor

例子

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];

注意：适用于任何Layer属性或从UIView继承的任何对象，如UIToolbar |UIPickerView |UIDatePicker |UIScrollView |UITextView |UIImageView |UITableViewCell |UIStepper |UIProgressView |UIActivityIndi​​catorView |UISwitch |UISlider |UITextField |UISegmentedControl |UIButton |UIView |UITableView

步骤3找到下面的属性，然后添加和设置.toValue

查看属性

Alpha-kPOPViewAlpha

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewAlpha];basicAnimation.toValue = @（0）;

//scale from 0 to 1

颜色 - kPOPViewBackgroundColor

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewBackgroundColor];basicAnimation.toValue = [UIColorredColor];

大小 - kPOPViewBounds

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewBounds];basicAnimation.toValue = [NSValuevalueWithCGRect：CGRectMake（0，0，90，190）];//前2个值不要

中心 - kPOPViewCenter

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewCenter];basicAnimation.toValue = [NSValuevalueWithCGPoint：CGPointMake（200，200）];

位置和大小 - kPOPViewFrame

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewFrame];basicAnimation.toValue = [NSValuevalueWithCGRect：CGRectMake（140，140，140，140）];

大小 - kPOPViewScaleXY

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewScaleXY];basicAnimation.toValue = [NSValuevalueWithCGSize：CGSizeMake（3，2）];

大小（缩放） - kPOPViewSize

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewSize];basicAnimation.toValue = [NSValuevalueWithCGSize：CGSizeMake（30，200）];

图层属性

颜色 - kPOPLayerBackgroundColor

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerBackgroundColor];basicAnimation.toValue = [UIColorredColor];

大小 - kPOPLayerBounds

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerBounds];basicAnimation.toValue = [NSValuevalueWithCGRect：CGRectMake（0，0，90，90）];//前2个值不要

大小 - kPOPLayerScaleXY

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerScaleXY];basicAnimation.toValue = [NSValuevalueWithCGSize：CGSizeMake（2，1）];//增加宽度和高度标度

大小 - kPOPLayerSize

POPBasicAnimation * basicAnimation = [POPBasicAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerSize];basicAnimation.toValue = [NSValuevalueWithCGSize：CGSizeMake（200，200）];

不透明度 - kPOPLayerOpacity

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerOpacity];basicAnimation.toValue = @（0）;

位置 - kPOPLayerPosition

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerPosition];basicAnimation.toValue = [NSValuevalueWithCGRect：CGRectMake（130，130，0，0）];//last 2 values dont matter

X位置 - kPOPLayerPositionX

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerPositionX];basicAnimation.toValue = @（240）;

Y位置 - kPOPLayerPositionY

POPSpringAnimation * anim = [POPSpringAnimationanimation];anim.property = [POPAnimatablePropertypropertyWithName：kPOPLayerPositionY];anim.toValue = @（320）;

旋转 - kPOPLayerRotation

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerRotation];basicAnimation.toValue = @（M_PI /4）;//2 M_PI是整个旋转

注意：属性更改适用于所有3种动画类型 - POPBasicAnimation POPSpringAnimation POPDecayAnimation

例子

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPLayerRotation];basicAnimation.toValue = @（M_PI /4）;//2 M_PI是整个旋转

步骤4为动画创建名称和委派

basicAnimation.name =@“WhatEverAnimationNameYouWant”;basicAnimation.delegate = self;

声明委托协议

委托方法

- （void）pop_animationDidStart：（POPAnimation *）anim;

- （void）pop_animationDidStop：（POPAnimation *）anim finished :(BOOL）finished;

- （void）pop_animationDidReachToValue：（POPAnimation *）anim;

例子

POPSpringAnimation * basicAnimation = [POPSpringAnimationanimation];basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewFrame];basicAnimation.toValue = [NSValuevalueWithCGRect：CGRectMake（0，0，90，190）];basicAnimation.name =@“WhatEverAnimationNameYouWant”;basicAnimation.delegate = self;

步骤5添加动画到查看

[self.tableViewpop_addAnimation：basicAnimationforKey：@“WhatEverNameYouWant”];

例子

POPSpringAnimation * basicAnimation = [POPSpringAnimation animation];

basicAnimation.property = [POPAnimatablePropertypropertyWithName：kPOPViewFrame];

basicAnimation.toValue = [NSValuevalueWithCGRect：CGRectMake（0，0，90，190）];

basicAnimation.name =@“SomeAnimationNameYouChoose”;

basicAnimation.delegate = self;

[self.tableViewpop_addAnimation：basicAnimationforKey：@“WhatEverNameYouWant”];

结语：

PoP GitHub 地址：https://github.com/facebook/pop

本文章持续更新，更新至PoP框架里面的API及属性，以中文详解并以Demo形式更新。

看到这里， 你觉得可以请点下👍   你的赞是我持续更新的动力，O(∩_∩)O谢谢！