动画在APP开发过程中还是经常出现,将花几天的时间对Facebook开源动画库 POP进行简单的学习;本文主要针对的是POPBasicAnimation运用;实例源代码已经上传至gitHub,地址:https://github.com/wujunyang/facebookPopTest
Pop Github : https://github.com/facebook/pop
Pop比较全的实例: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默认支持三种动画 但同时也支持自定义动画
POPBasicAnimation //基本动画
POPSpringAnimation //类似弹簧一般的动画效果
POPDecayAnimation //过阻尼效果,衰减效果
POPCustomAnimation //自定义动画
一:POPBasicAnimation运用
实例1:创建一个动画效果,关于视图透明度的变化,从全透明经过五秒的时间变成alpha为1的不透明效果;此处运用到的POPBasicAnimation类;
- (void)viewDidLoad {[super viewDidLoad];self.view.backgroundColor=[UIColor whiteColor];//1:初始化一个视图块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];}//创建一个POPBasicAnimation动画POPBasicAnimation *basicAnimation=[POPBasicAnimation animationWithPropertyNamed:kPOPViewAlpha];basicAnimation.fromValue=@(0);basicAnimation.toValue=@(1);basicAnimation.duration=5; //设置动画的间隔时间 默认是0.4秒basicAnimation.repeatCount=HUGE_VALF; //重复次数 HUGE_VALF设置为无限次重复[self.myView pop_addAnimation:basicAnimation forKey:@"myViewAnimation"]; }
其实POP创建动画的步骤分为三步,a:创建相应的动画类 b:增加相应的属性 c:附加到相应的对象上;
上面实例中kPOPViewAlpha是POP为我们封装好的一个关于透明度的动画效果;加上属性就满足我们的要求;从而也引出POP中一个很关键的类POPAnimatableProperty,里面定义的一些常量在今后的运用中非常关键;
我们可以简单看一下POPAnimatableProperty里面定义的一些常量,因为主要针对IOS方面,所以就选出IOS相关的内容:
/**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
其实常量对应到其每个UIKIT的一个属性上,下面把部分列出来,就可以了解到动画效果是针对什么属性进行
NSString * const kPOPLayerBackgroundColor = @"backgroundColor"; //背景色 NSString * const kPOPLayerBounds = @"bounds"; //坐标 NSString * const kPOPLayerCornerRadius = @"cornerRadius"; //圆形 值越大,角就越圆 NSString * const kPOPLayerBorderWidth = @"borderWidth"; //边框宽度 NSString * const kPOPLayerBorderColor = @"borderColor"; //边框色 NSString * const kPOPLayerOpacity = @"opacity"; //透明度 NSString * const kPOPLayerPosition = @"position"; //位置 position是相对于屏幕的 NSString * const kPOPLayerPositionX = @"positionX"; NSString * const kPOPLayerPositionY = @"positionY"; NSString * const kPOPLayerRotation = @"rotation"; //旋转 NSString * const kPOPLayerRotationX = @"rotationX"; NSString * const kPOPLayerRotationY = @"rotationY"; NSString * const kPOPLayerScaleX = @"scaleX"; //缩放系数 NSString * const kPOPLayerScaleXY = @"scaleXY"; //XY缩放系数 NSString * const kPOPLayerScaleY = @"scaleY"; //Y缩放系数 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轴平移量 NSString * const kPOPLayerTranslationXY = @"translationXY"; //XY轴平移量 NSString * const kPOPLayerTranslationY = @"translationY"; //Y轴平移量 NSString * const kPOPLayerTranslationZ = @"translationZ"; //Z轴平移量 NSString * const kPOPLayerZPosition = @"zPosition"; //遮挡属性 NSString * const kPOPLayerShadowColor = @"shadowColor"; //设置阴影 NSString * const kPOPLayerShadowOffset = @"shadowOffset"; //阴影偏移 NSString * const kPOPLayerShadowOpacity = @"shadowOpacity"; //阴影透明度 NSString * const kPOPLayerShadowRadius = @"shadowRadius"; //阴影半径// CAShapeLayer NSString * const kPOPShapeLayerStrokeStart = @"shapeLayer.strokeStart";//strokeStart 动画的fromValue = 0,toValue = 1 表示从路径的0位置画到1 怎么画是按照清除开始的位置也就是清除0 一直清除到1 效果就是一条路径慢慢的消失 strokeStart 动画的fromValue = 1,toValue = 0 表示从路径的1位置画到0 怎么画是按照清除开始的位置也就是1 这样开始的路径是空的(即都被清除掉了)一直清除到0 效果就是一条路径被反方向画出来 NSString * const kPOPShapeLayerStrokeEnd = @"shapeLayer.strokeEnd";// strokeEnd 动画的fromValue = 0,toValue = 1 表示 这里我们分3个点说明动画的顺序 strokeEnd从结尾开始清除 首先整条路径先清除后2/3,接着清除1/3 效果就是正方向画出路径 strokeEnd 动画的fromValue = 1,toValue = 0 效果就是反方向路径慢慢消失 NSString * const kPOPShapeLayerStrokeColor = @"shapeLayer.strokeColor"; //画笔的色 NSString * const kPOPShapeLayerFillColor = @"shapeLayer.fillColor"; NSString * const kPOPShapeLayerLineWidth = @"shapeLayer.lineWidth"; //线的宽度 NSString * const kPOPShapeLayerLineDashPhase = @"shapeLayer.lineDashPhase";
从上面的源代码不难发现,其实针对不同的UIKit都有一些相应的常量,比如在UIView中就有我们上面实例中出现的kPOPViewAlpha;因为POP动画是针对对象的,所以很多的控件都可以做出相应的动画效果;CALayer、CAShapeLayer、UIView中相关的常量大部分控件都可以使用;注意像常量kPOPLayerRotation它是作用在层上,所以我们在使用时要把它加载到相应视图的layer上面;
实例2:创建一个动画效果,实现一个视图在延迟2s后经过5秒的时间X轴从50移到300位置的动画效果;
//2:初始化一个视图块if (self.myXView==nil) {self.myXView=[[UIView alloc]initWithFrame:CGRectMake(50, 210, 50, 50)];self.myXView.backgroundColor=[UIColor blueColor];[self.view addSubview:self.myXView];}//创建一个POPBasicAnimation动画 X轴的变化 从50移到300位置POPBasicAnimation *anBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPLayerPositionX];anBasic.toValue = @(300);anBasic.beginTime = CACurrentMediaTime() + 2.0f; //可以用来设置动画延迟执行时间,若想延迟2s,就设置为CACurrentMediaTime()+2,CACurrentMediaTime()为图层的当前时间anBasic.duration=5;//设置动画的间隔时间 默认是0.4秒[self.myXView pop_addAnimation:anBasic forKey:@"myBackColorViewAnimation”];
实例3:创建一个动画效果,实现视图的背影色经过5秒后从黑色变成黄色的动画效果;
//3:初始化一个视图块if (self.myBackColorView==nil) {self.myBackColorView=[[UIView alloc]initWithFrame:CGRectMake(250, 100, 50, 50)];self.myBackColorView.backgroundColor=[UIColor blackColor];[self.view addSubview:self.myBackColorView];}//创建一个POPBasicAnimation动画 视图的背影色从黑色经过5秒后渐进变成黄色POPBasicAnimation *anBackGroundBasic = [POPBasicAnimation animationWithPropertyNamed:kPOPViewBackgroundColor];anBackGroundBasic.toValue=[UIColor yellowColor];anBackGroundBasic.duration=5;[self.myBackColorView pop_addAnimation:anBackGroundBasic forKey:@"myBackColorViewAnimation”];
从上面三个实例可以发现,其实toValue或FormValue的值都是根据动画属性类型来定义,因为它们都是id型;这也决定它们可以是任何类型的值,只要符合我们要求就行;
除了上面那些常用的属性外,还有一个运行CAMediaTimingFunction:速度控制函数属性;四种如下:
kCAMediaTimingFunctionLinear(线性):匀速,给你一个相对静态的感觉
kCAMediaTimingFunctionEaseIn(渐进):动画缓慢进入,然后加速离开
kCAMediaTimingFunctionEaseOut(渐出):动画全速进入,然后减速的到达目的地
kCAMediaTimingFunctionEaseInEaseOut(渐进渐出):动画缓慢的进入,中间加速,然后减速的到达目的地。这个是默认的动画行为。
实例4:创建一个POPBasicAnimation动画 视图中心以kCAMediaTimingFunctionLinear直线运行到中心点为100,64
//4:初始化一个视图块if (self.mytimingFunctionLinearView==nil) {self.mytimingFunctionLinearView=[[UIView alloc]initWithFrame:CGRectMake(0, 300, 50, 50)];self.mytimingFunctionLinearView.backgroundColor=[UIColor greenColor];[self.view addSubview:self.mytimingFunctionLinearView];}//创建一个POPBasicAnimation动画 视图中心以kCAMediaTimingFunctionLinear直线运行到中心点为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"];
实例5:创建一个POPBasicAnimation动画 视图中心以kCAMediaTimingFunctionEaseInEaseOut直线运行到中心点为200,64
//5:初始化一个视图块if (self.mytimingFunctionEaseInEaseOutView==nil) {self.mytimingFunctionEaseInEaseOutView=[[UIView alloc]initWithFrame:CGRectMake(100, 300, 50, 50)];self.mytimingFunctionEaseInEaseOutView.backgroundColor=[UIColor grayColor];[self.view addSubview:self.mytimingFunctionEaseInEaseOutView];}//创建一个POPBasicAnimation动画 视图中心以kCAMediaTimingFunctionEaseInEaseOut直线运行到中心点为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比较好的一点是保留了动画结束后的状态,通过block回调。如下面的实例视图块的大小会被变成100*100
实例6:创建一个POPBasicAnimation动画 让视图块的大小从50*50 慢慢变到100*100
//6:初始化一个视图块if (self.mySizeView==nil) {self.mySizeView=[[UIView alloc]initWithFrame:CGRectMake(250, 300, 50, 50)];self.mySizeView.backgroundColor=[UIColor redColor];[self.view addSubview:self.mySizeView];}//创建一个POPBasicAnimation动画 让视图块的大小从50*50 慢慢变到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可以在动画完成后做一些其它的操作;
实例7:创建一个POPBasicAnimation动画 让视图块的大小从60*30 慢慢变到100*100 动画完成后又有一个动画变成60*30
//7:初始化一个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];}//创建一个POPBasicAnimation动画 让视图块的大小从60*30 慢慢变到100*100 动画完成后又有一个动画变成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"];
实例8:增加一个动画 类似心跳的效果,把动画封装在方法里面,方便进行递归调用;
@property(nonatomic)CALayer *myCriLayer; @property (nonatomic) BOOL animated;初始化代码://8:初始化一个CALayer层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];}//增加一个动画 类似心跳的效果 [self performAnimation];把动画封装在方法里面,方便进行递归调用;-(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]; //不同的类型 心跳会不一样 self.animated = !self.animated; //使每次都有区别 anim.completionBlock = ^(POPAnimation *anim, BOOL finished) {if (finished) {[self performAnimation]; //当动画结束后又递归调用,让它产生一种心跳的效果 }};[self.myCriLayer pop_addAnimation:anim forKey:@"Animation"]; }
这样的方式可以在今后很多重复的动画中进行递归运用;
对于forKey是为了可以管理相应的动画,比如移除动画之类的,可以简单了解一下官方的实例
POPSpringAnimation *anim = [POPSpringAnimation animation]; ... [layer pop_addAnimation:anim forKey:@"myKey”];移除:[layer pop_removeAnimationForKey:@"myKey”];
也可以删除这个上面所有的动画:
[layer pop_removeAllAnimations];可以判断是否存在 anim = [layer pop_animationForKey:@"myKey"]; if (anim) {/* update to value to new destination */anim.toValue = @(42.0); } else {/* create and start a new animation */.... }
当添加类似[myView pop_addAnimation:animation forKey:@"myKey"];的动画时,如果你用相同的key添加其他动画,那么新添加的动画将会取代先前的动画。
二:Pop Animation相比于Core Animation的优点
Pop Animation应用于CALayer时,在动画运行的任何时刻,layer和其presentationLayer的相关属性值始终保持一致,而Core Animation做不到。
Pop Animation可以应用任何NSObject的对象,而Core Aniamtion必须是CALayer。
三:相关属性的值
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
最近有个妹子弄的一个关于扩大眼界跟内含的订阅号,每天都会更新一些深度内容,在这里如果你感兴趣也可以关注一下(嘿对美女跟知识感兴趣),当然可以关注后输入:github 会有我的微信号,如果有问题你也可以在那找到我;当然不感兴趣无视此信息;