動畫在APP開發過程中還是經常出現，將花幾天的時間對Facebook開源動畫庫 POP進行簡單的學習；本文主要針對的是POPBasicAnimation運用；實例源代碼已經上傳至gitHub,地址：https://github.com/wujunyang/facebookPopTest

Pop Github : https://github.com/facebook/pop

Pop比較全的實例：https://github.com/kevinzhow/pop-handapp

Popping -Pop案例 : https://github.com/schneiderandre/popping

心跳案例POP：https://github.com/hanzhen/MiniMatch-iOS

POP使用教程: https://github.com/maxmyers/FacebookPop

?

POP默認支持三種動畫 但同時也支持自定義動畫

POPBasicAnimation //基本動畫

POPSpringAnimation //類似彈簧一般的動畫效果

POPDecayAnimation //過阻尼效果，衰減效果

POPCustomAnimation //自定義動畫

?

一：POPBasicAnimation運用

實例1：創建一個動畫效果，關于視圖透明度的變化，從全透明經過五秒的時間變成alpha為1的不透明效果；此處運用到的POPBasicAnimation類；

- (void)viewDidLoad {[super viewDidLoad];self.view.backgroundColor=[UIColor whiteColor];//1:初始化一個視圖塊if (self.myView==nil) {self.myView=[[UIView alloc]initWithFrame:CGRectMake(100, 100, 100, 100)];self.myView.backgroundColor=[UIColor redColor];self.myView.alpha=0;[self.view addSubview:self.myView];}//創建一個POPBasicAnimation動畫POPBasicAnimation *basicAnimation=[POPBasicAnimation animationWithPropertyNamed:kPOPViewAlpha];basicAnimation.fromValue=@(0);basicAnimation.toValue=@(1);basicAnimation.duration=5; //設置動畫的間隔時間 默認是0.4秒basicAnimation.repeatCount=HUGE_VALF; //重復次數 HUGE_VALF設置為無限次重復[self.myView pop_addAnimation:basicAnimation forKey:@"myViewAnimation"]; }

其實POP創建動畫的步驟分為三步，a:創建相應的動畫類 b:增加相應的屬性 c:附加到相應的對象上；

上面實例中kPOPViewAlpha是POP為我們封裝好的一個關于透明度的動畫效果；加上屬性就滿足我們的要求；從而也引出POP中一個很關鍵的類POPAnimatableProperty，里面定義的一些常量在今后的運用中非常關鍵；

我們可以簡單看一下POPAnimatableProperty里面定義的一些常量，因為主要針對IOS方面，所以就選出IOS相關的內容：

/**Common CALayer property names.*/ extern NSString * const kPOPLayerBackgroundColor; extern NSString * const kPOPLayerBounds; extern NSString * const kPOPLayerCornerRadius; extern NSString * const kPOPLayerBorderWidth; extern NSString * const kPOPLayerBorderColor; extern NSString * const kPOPLayerOpacity; extern NSString * const kPOPLayerPosition; extern NSString * const kPOPLayerPositionX; extern NSString * const kPOPLayerPositionY; extern NSString * const kPOPLayerRotation; extern NSString * const kPOPLayerRotationX; extern NSString * const kPOPLayerRotationY; extern NSString * const kPOPLayerScaleX; extern NSString * const kPOPLayerScaleXY; extern NSString * const kPOPLayerScaleY; extern NSString * const kPOPLayerSize; extern NSString * const kPOPLayerSubscaleXY; extern NSString * const kPOPLayerSubtranslationX; extern NSString * const kPOPLayerSubtranslationXY; extern NSString * const kPOPLayerSubtranslationY; extern NSString * const kPOPLayerSubtranslationZ; extern NSString * const kPOPLayerTranslationX; extern NSString * const kPOPLayerTranslationXY; extern NSString * const kPOPLayerTranslationY; extern NSString * const kPOPLayerTranslationZ; extern NSString * const kPOPLayerZPosition; extern NSString * const kPOPLayerShadowColor; extern NSString * const kPOPLayerShadowOffset; extern NSString * const kPOPLayerShadowOpacity; extern NSString * const kPOPLayerShadowRadius;/**Common CAShapeLayer property names.*/ extern NSString * const kPOPShapeLayerStrokeStart; extern NSString * const kPOPShapeLayerStrokeEnd; extern NSString * const kPOPShapeLayerStrokeColor; extern NSString * const kPOPShapeLayerFillColor; extern NSString * const kPOPShapeLayerLineWidth; extern NSString * const kPOPShapeLayerLineDashPhase;/**Common NSLayoutConstraint property names.*/ extern NSString * const kPOPLayoutConstraintConstant;#if TARGET_OS_IPHONE/**Common UIView property names.*/ extern NSString * const kPOPViewAlpha; extern NSString * const kPOPViewBackgroundColor; extern NSString * const kPOPViewBounds; extern NSString * const kPOPViewCenter; extern NSString * const kPOPViewFrame; extern NSString * const kPOPViewScaleX; extern NSString * const kPOPViewScaleXY; extern NSString * const kPOPViewScaleY; extern NSString * const kPOPViewSize; extern NSString * const kPOPViewTintColor;/**Common UIScrollView property names.*/ extern NSString * const kPOPScrollViewContentOffset; extern NSString * const kPOPScrollViewContentSize; extern NSString * const kPOPScrollViewZoomScale; extern NSString * const kPOPScrollViewContentInset; extern NSString * const kPOPScrollViewScrollIndicatorInsets;/**Common UITableView property names.*/ extern NSString * const kPOPTableViewContentOffset; extern NSString * const kPOPTableViewContentSize;/**Common UICollectionView property names.*/ extern NSString * const kPOPCollectionViewContentOffset; extern NSString * const kPOPCollectionViewContentSize;/**Common UINavigationBar property names.*/ extern NSString * const kPOPNavigationBarBarTintColor;/**Common UIToolbar property names.*/ extern NSString * const kPOPToolbarBarTintColor;/**Common UITabBar property names.*/ extern NSString * const kPOPTabBarBarTintColor;/**Common UILabel property names.*/ extern NSString * const kPOPLabelTextColor;#else/**Common NSView property names.*/ extern NSString * const kPOPViewFrame; extern NSString * const kPOPViewBounds; extern NSString * const kPOPViewAlphaValue; extern NSString * const kPOPViewFrameRotation; extern NSString * const kPOPViewFrameCenterRotation; extern NSString * const kPOPViewBoundsRotation;/**Common NSWindow property names.*/ extern NSString * const kPOPWindowFrame; extern NSString * const kPOPWindowAlphaValue; extern NSString * const kPOPWindowBackgroundColor;#endif

其實常量對應到其每個UIKIT的一個屬性上，下面把部分列出來，就可以了解到動畫效果是針對什么屬性進行

NSString * const kPOPLayerBackgroundColor = @"backgroundColor"; //背景色 NSString * const kPOPLayerBounds = @"bounds"; //坐標 NSString * const kPOPLayerCornerRadius = @"cornerRadius"; //圓形 值越大,角就越圓 NSString * const kPOPLayerBorderWidth = @"borderWidth"; //邊框寬度 NSString * const kPOPLayerBorderColor = @"borderColor"; //邊框色 NSString * const kPOPLayerOpacity = @"opacity"; //透明度 NSString * const kPOPLayerPosition = @"position"; //位置 position是相對于屏幕的 NSString * const kPOPLayerPositionX = @"positionX"; NSString * const kPOPLayerPositionY = @"positionY"; NSString * const kPOPLayerRotation = @"rotation"; //旋轉 NSString * const kPOPLayerRotationX = @"rotationX"; NSString * const kPOPLayerRotationY = @"rotationY"; NSString * const kPOPLayerScaleX = @"scaleX"; //縮放系數 NSString * const kPOPLayerScaleXY = @"scaleXY"; //XY縮放系數 NSString * const kPOPLayerScaleY = @"scaleY"; //Y縮放系數 NSString * const kPOPLayerSize = @"size"; //大小 NSString * const kPOPLayerSubscaleXY = @"subscaleXY"; NSString * const kPOPLayerSubtranslationX = @"subtranslationX"; NSString * const kPOPLayerSubtranslationXY = @"subtranslationXY"; NSString * const kPOPLayerSubtranslationY = @"subtranslationY"; NSString * const kPOPLayerSubtranslationZ = @"subtranslationZ"; NSString * const kPOPLayerTranslationX = @"translationX"; //X軸平移量 NSString * const kPOPLayerTranslationXY = @"translationXY"; //XY軸平移量 NSString * const kPOPLayerTranslationY = @"translationY"; //Y軸平移量 NSString * const kPOPLayerTranslationZ = @"translationZ"; //Z軸平移量 NSString * const kPOPLayerZPosition = @"zPosition"; //遮擋屬性 NSString * const kPOPLayerShadowColor = @"shadowColor"; //設置陰影 NSString * const kPOPLayerShadowOffset = @"shadowOffset"; //陰影偏移 NSString * const kPOPLayerShadowOpacity = @"shadowOpacity"; //陰影透明度 NSString * const kPOPLayerShadowRadius = @"shadowRadius"; //陰影半徑// CAShapeLayer NSString * const kPOPShapeLayerStrokeStart = @"shapeLayer.strokeStart";//strokeStart 動畫的fromValue = 0，toValue = 1 表示從路徑的0位置畫到1 怎么畫是按照清除開始的位置也就是清除0 一直清除到1 效果就是一條路徑慢慢的消失 strokeStart 動畫的fromValue = 1，toValue = 0 表示從路徑的1位置畫到0 怎么畫是按照清除開始的位置也就是1 這樣開始的路徑是空的（即都被清除掉了）一直清除到0 效果就是一條路徑被反方向畫出來 NSString * const kPOPShapeLayerStrokeEnd = @"shapeLayer.strokeEnd";// strokeEnd 動畫的fromValue = 0，toValue = 1 表示 這里我們分3個點說明動畫的順序 strokeEnd從結尾開始清除 首先整條路徑先清除后2/3，接著清除1/3 效果就是正方向畫出路徑 strokeEnd 動畫的fromValue = 1，toValue = 0 效果就是反方向路徑慢慢消失 NSString * const kPOPShapeLayerStrokeColor = @"shapeLayer.strokeColor"; //畫筆的色 NSString * const kPOPShapeLayerFillColor = @"shapeLayer.fillColor"; NSString * const kPOPShapeLayerLineWidth = @"shapeLayer.lineWidth"; //線的寬度 NSString * const kPOPShapeLayerLineDashPhase = @"shapeLayer.lineDashPhase";

從上面的源代碼不難發現，其實針對不同的UIKit都有一些相應的常量，比如在UIView中就有我們上面實例中出現的kPOPViewAlpha；因為POP動畫是針對對象的，所以很多的控件都可以做出相應的動畫效果；CALayer、CAShapeLayer、UIView中相關的常量大部分控件都可以使用；注意像常量kPOPLayerRotation它是作用在層上，所以我們在使用時要把它加載到相應視圖的layer上面；

實例2：創建一個動畫效果，實現一個視圖在延遲2s后經過5秒的時間X軸從50移到300位置的動畫效果；

//2:初始化一個視圖塊if (self.myXView==nil) {self.myXView=[[UIView alloc]initWithFrame:CGRectMake(50, 210, 50, 50)];self.myXView.backgroundColor=[UIColor blueColor];[self.view addSubview:self.myXView];}//創建一個POPBasicAnimation動畫 X軸的變化 從50移到300位置POPBasicAnimation *anBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerPositionX];anBasic.toValue = @(300);anBasic.beginTime = CACurrentMediaTime() + 2.0f; //可以用來設置動畫延遲執行時間，若想延遲2s，就設置為CACurrentMediaTime()+2，CACurrentMediaTime()為圖層的當前時間anBasic.duration=5;//設置動畫的間隔時間 默認是0.4秒[self.myXView pop_addAnimation:anBasic forKey:@"myBackColorViewAnimation”];

實例3：創建一個動畫效果，實現視圖的背影色經過5秒后從黑色變成黃色的動畫效果；

//3:初始化一個視圖塊if (self.myBackColorView==nil) {self.myBackColorView=[[UIView alloc]initWithFrame:CGRectMake(250, 100, 50, 50)];self.myBackColorView.backgroundColor=[UIColor blackColor];[self.view addSubview:self.myBackColorView];}//創建一個POPBasicAnimation動畫 視圖的背影色從黑色經過5秒后漸進變成黃色POPBasicAnimation *anBackGroundBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPViewBackgroundColor];anBackGroundBasic.toValue=[UIColor yellowColor];anBackGroundBasic.duration=5;[self.myBackColorView pop_addAnimation:anBackGroundBasic forKey:@"myBackColorViewAnimation”];

從上面三個實例可以發現，其實toValue或FormValue的值都是根據動畫屬性類型來定義，因為它們都是id型；這也決定它們可以是任何類型的值，只要符合我們要求就行；

除了上面那些常用的屬性外，還有一個運行CAMediaTimingFunction:速度控制函數屬性；四種如下：

kCAMediaTimingFunctionLinear（線性）：勻速，給你一個相對靜態的感覺

kCAMediaTimingFunctionEaseIn（漸進）：動畫緩慢進入，然后加速離開

kCAMediaTimingFunctionEaseOut（漸出）：動畫全速進入，然后減速的到達目的地

kCAMediaTimingFunctionEaseInEaseOut（漸進漸出）：動畫緩慢的進入，中間加速，然后減速的到達目的地。這個是默認的動畫行為。

實例4：創建一個POPBasicAnimation動畫 視圖中心以kCAMediaTimingFunctionLinear直線運行到中心點為100,64

//4:初始化一個視圖塊if (self.mytimingFunctionLinearView==nil) {self.mytimingFunctionLinearView=[[UIView alloc]initWithFrame:CGRectMake(0, 300, 50, 50)];self.mytimingFunctionLinearView.backgroundColor=[UIColor greenColor];[self.view addSubview:self.mytimingFunctionLinearView];}//創建一個POPBasicAnimation動畫 視圖中心以kCAMediaTimingFunctionLinear直線運行到中心點為100,64POPBasicAnimation *anLinearBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPViewCenter];anLinearBasic.toValue=[NSValue valueWithCGPoint:CGPointMake(100, 64)];anLinearBasic.duration=5;anLinearBasic.timingFunction=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];[self.mytimingFunctionLinearView pop_addAnimation:anLinearBasic forKey:@"myLinearBasic"];

實例5：創建一個POPBasicAnimation動畫 視圖中心以kCAMediaTimingFunctionEaseInEaseOut直線運行到中心點為200,64

//5:初始化一個視圖塊if (self.mytimingFunctionEaseInEaseOutView==nil) {self.mytimingFunctionEaseInEaseOutView=[[UIView alloc]initWithFrame:CGRectMake(100, 300, 50, 50)];self.mytimingFunctionEaseInEaseOutView.backgroundColor=[UIColor grayColor];[self.view addSubview:self.mytimingFunctionEaseInEaseOutView];}//創建一個POPBasicAnimation動畫 視圖中心以kCAMediaTimingFunctionEaseInEaseOut直線運行到中心點為200,64POPBasicAnimation *anEaseInEaseOutBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPViewCenter];anEaseInEaseOutBasic.toValue=[NSValue valueWithCGPoint:CGPointMake(200, 64)];anEaseInEaseOutBasic.duration=5;anEaseInEaseOutBasic.timingFunction=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];[self.mytimingFunctionEaseInEaseOutView pop_addAnimation:anEaseInEaseOutBasic forKey:@"mytimingFunctionEaseInEaseOutView”];

POP比較好的一點是保留了動畫結束后的狀態，通過block回調。如下面的實例視圖塊的大小會被變成100*100

實例6：創建一個POPBasicAnimation動畫 讓視圖塊的大小從50*50 慢慢變到100*100

//6:初始化一個視圖塊if (self.mySizeView==nil) {self.mySizeView=[[UIView alloc]initWithFrame:CGRectMake(250, 300, 50, 50)];self.mySizeView.backgroundColor=[UIColor redColor];[self.view addSubview:self.mySizeView];}//創建一個POPBasicAnimation動畫 讓視圖塊的大小從50*50 慢慢變到100*100POPBasicAnimation *ansizeBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPViewSize];ansizeBasic.toValue=[NSValue valueWithCGSize:CGSizeMake(100, 100)];ansizeBasic.duration=5;ansizeBasic.repeatCount=HUGE_VALF;[self.mySizeView pop_addAnimation:ansizeBasic forKey:@"mySizeView”];

setCompletionBlock可以在動畫完成后做一些其它的操作；

實例7：創建一個POPBasicAnimation動畫 讓視圖塊的大小從60*30 慢慢變到100*100 ?動畫完成后又有一個動畫變成60*30

//7:初始化一個Labelif (self.myLabel==nil) {self.myLabel=[[UILabel alloc]initWithFrame:CGRectMake(50, 300, 60, 30)];self.myLabel.backgroundColor=[UIColor redColor];self.myLabel.textAlignment=NSTextAlignmentCenter;self.myLabel.textColor=[UIColor whiteColor];self.myLabel.alpha=1;self.myLabel.text=@"Label";[self.view addSubview:self.myLabel];}//創建一個POPBasicAnimation動畫 讓視圖塊的大小從60*30 慢慢變到100*100 動畫完成后又有一個動畫變成60*30POPBasicAnimation* anLabelBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPViewSize];anLabelBasic.duration=3.0;anLabelBasic.toValue = [NSValue valueWithCGSize:CGSizeMake(100, 100)];anLabelBasic.timingFunction =[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];[anLabelBasic setCompletionBlock:^(POPAnimation *ani, BOOL fin) {if (fin) {NSLog(@"self.myLabel.frame=%@",NSStringFromCGRect(self.myLabel.frame));POPBasicAnimation *newLabelAnimation=[POPBasicAnimation animationWithPropertyNamed:kPOPViewSize];newLabelAnimation.duration=3.0;newLabelAnimation.toValue = [NSValue valueWithCGSize:CGSizeMake(60, 30)];newLabelAnimation.timingFunction =[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];[self.myLabel pop_addAnimation:newLabelAnimation forKey:@"newMyLabelAnimation"];}}];[self.myLabel pop_addAnimation:anLabelBasic forKey:@"myLabelAnimation"];

實例8：增加一個動畫 類似心跳的效果，把動畫封裝在方法里面，方便進行遞歸調用；

@property(nonatomic)CALayer *myCriLayer; @property (nonatomic) BOOL animated;初始化代碼：//8:初始化一個CALayer層if (self.myCriLayer==nil) {self.myCriLayer=[CALayer layer];[self.myCriLayer pop_removeAllAnimations];self.myCriLayer.opacity = 1.0;self.myCriLayer.transform = CATransform3DIdentity;[self.myCriLayer setMasksToBounds:YES];[self.myCriLayer setBackgroundColor:[UIColor colorWithRed:0.16 green:0.72 blue:1 alpha:1].CGColor];[self.myCriLayer setCornerRadius:15.0f];[self.myCriLayer setBounds:CGRectMake(0.0f, 0.0f, 30.0f, 30.0f)];self.myCriLayer.position = CGPointMake(self.view.center.x, 380.0);[self.view.layer addSublayer:self.myCriLayer];}//增加一個動畫 類似心跳的效果 [self performAnimation];把動畫封裝在方法里面，方便進行遞歸調用；-(void)performAnimation {[self.myCriLayer pop_removeAllAnimations];POPBasicAnimation *anim = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerScaleXY];if (self.animated) {anim.toValue = [NSValue valueWithCGPoint:CGPointMake(1.0, 1.0)];}else{anim.toValue = [NSValue valueWithCGPoint:CGPointMake(2.0, 2.0)];}anim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; //不同的類型 心跳會不一樣 self.animated = !self.animated; //使每次都有區別 anim.completionBlock = ^(POPAnimation *anim, BOOL finished) {if (finished) {[self performAnimation]; //當動畫結束后又遞歸調用，讓它產生一種心跳的效果 }};[self.myCriLayer pop_addAnimation:anim forKey:@"Animation"]; }

這樣的方式可以在今后很多重復的動畫中進行遞歸運用；

對于forKey是為了可以管理相應的動畫，比如移除動畫之類的，可以簡單了解一下官方的實例

POPSpringAnimation *anim = [POPSpringAnimation animation]; ... [layer pop_addAnimation:anim forKey:@"myKey”];移除：[layer pop_removeAnimationForKey:@"myKey”];

也可以刪除這個上面所有的動畫：

[layer pop_removeAllAnimations];可以判斷是否存在 anim = [layer pop_animationForKey:@"myKey"]; if (anim) {/* update to value to new destination */anim.toValue = @(42.0); } else {/* create and start a new animation */.... }

當添加類似[myView pop_addAnimation:animation forKey:@"myKey"];的動畫時，如果你用相同的key添加其他動畫，那么新添加的動畫將會取代先前的動畫。

二：Pop Animation相比于Core Animation的優點

Pop Animation應用于CALayer時，在動畫運行的任何時刻，layer和其presentationLayer的相關屬性值始終保持一致，而Core Animation做不到。

Pop Animation可以應用任何NSObject的對象，而Core Aniamtion必須是CALayer。

三：相關屬性的值

一：View Properties1：Alpha - kPOPViewAlphaPOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewAlpha]; basicAnimation.toValue= @(0); // scale from 0 to 1
2：Color - kPOPViewBackgroundColorPOPSpringAnimation *basicAnimation = [POPSpringAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPViewBackgroundColor]; basicAnimation.toValue= [UIColor redColor];
3：Size - kPOPViewBoundsPOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewBounds]; basicAnimation.toValue=[NSValue valueWithCGRect:CGRectMake(0, 0, 90, 190)]; //first 2 values dont matter
4：Center - kPOPViewCenterPOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewCenter]; basicAnimation.toValue=[NSValue valueWithCGPoint:CGPointMake(200, 200)];
5：Location & Size - kPOPViewFramePOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewFrame]; basicAnimation.toValue=[NSValue valueWithCGRect:CGRectMake(140, 140, 140, 140)];
6：Size - kPOPViewScaleXYPOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewScaleXY]; basicAnimation.toValue=[NSValue valueWithCGSize:CGSizeMake(3, 2)];
7：Size(Scale) - kPOPViewSizePOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName:kPOPViewSize]; basicAnimation.toValue=[NSValue valueWithCGSize:CGSizeMake(30, 200)];
二：Layer Properties1：Color - kPOPLayerBackgroundColorPOPSpringAnimation *basicAnimation = [POPSpringAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPLayerBackgroundColor]; basicAnimation.toValue= [UIColor redColor];
2：Size - kPOPLayerBoundsPOPSpringAnimation *basicAnimation = [POPSpringAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPLayerBounds]; basicAnimation.toValue= [NSValue valueWithCGRect:CGRectMake(0, 0, 90, 90)]; //first 2 values dont matter
3：Size - kPOPLayerScaleXYPOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPLayerScaleXY]; basicAnimation.toValue= [NSValue valueWithCGSize:CGSizeMake(2, 1)];//increases width and height scales
4：Size - kPOPLayerSizePOPBasicAnimation *basicAnimation = [POPBasicAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName:kPOPLayerSize]; basicAnimation.toValue= [NSValue valueWithCGSize:CGSizeMake(200, 200)];
5：Opacity - kPOPLayerOpacityPOPSpringAnimation *basicAnimation = [POPSpringAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPLayerOpacity]; basicAnimation.toValue = @(0);
6：Position - kPOPLayerPositionPOPSpringAnimation *basicAnimation = [POPSpringAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPLayerPosition]; basicAnimation.toValue= [NSValue valueWithCGRect:CGRectMake(130, 130, 0, 0)];//last 2 values dont matter
7：X Position - kPOPLayerPositionXPOPSpringAnimation *basicAnimation = [POPSpringAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPLayerPositionX]; basicAnimation.toValue= @(240);
8：Y Position - kPOPLayerPositionYPOPSpringAnimation *anim = [POPSpringAnimation animation]; anim.property=[POPAnimatableProperty propertyWithName:kPOPLayerPositionY]; anim.toValue = @(320);
9：Rotation - kPOPLayerRotationPOPSpringAnimation *basicAnimation = [POPSpringAnimation animation]; basicAnimation.property = [POPAnimatableProperty propertyWithName: kPOPLayerRotation]; basicAnimation.toValue= @(M_PI/4); //2 M_PI is an entire rotation

?

?

最近有個妹子弄的一個關于擴大眼界跟內含的訂閱號，每天都會更新一些深度內容，在這里如果你感興趣也可以關注一下(嘿對美女跟知識感興趣)，當然可以關注后輸入：github 會有我的微信號，如果有問題你也可以在那找到我；當然不感興趣無視此信息；

總結

以上是生活随笔為你收集整理的Facebook开源动画库 POP-POPBasicAnimation运用的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。