1、pop
1.1 大家都知道在很多动画上Core Animation有不可估量的作用，但是其局限性是只能加到layer层上，而接下来介绍的由facebook出品的pop，它可以加在任何控件上，pop基于CADisplayLink，并非基于Core Animation，下面就来看一下pop的基本使用
1、创建一个UI控件
self.testView = [[UIView alloc] init];
self.testView.frame = CGRectMake(20, 20, SCREEN_WIDTH-40, 30);
self.testView.backgroundColor = [UIColor cyanColor];
[self.view addSubview:self.testView];
2、导入pop.h头文件,调用pop的动画方法
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
POPSpringAnimation *anim = [POPSpringAnimation animationWithPropertyNamed:kPOPViewAlpha];
anim.fromValue = @(1.0);
anim.toValue = @(0.0);
[self.testView pop_addAnimation:anim forKey:@"key"]; // key可以为nil，但是需要移除动画的时候最好加上key
// [self pop_removeAnimationForKey:@"key"];
// 添加带有弹簧效果的动画
// POPSpringAnimation *anim = [POPSpringAnimation animationWithPropertyNamed:kPOPViewCenter];
// anim.fromValue = [NSValue valueWithCGPoint:CGPointMake(100, 100)];
// anim.springSpeed = 20;
// anim.springBounciness = 20;
// anim.toValue = [NSValue valueWithCGPoint:CGPointMake(200, 200)];
// [self.testView pop_addAnimation:anim forKey:@"key"];
// 3 添加到图层上
// POPSpringAnimation *anim = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerPositionY];
// anim.beginTime = CACurrentMediaTime()+2.0; // 从当前时间开始延迟两秒开始执行
// anim.springSpeed = 20;
// anim.springBounciness = 20; // 以上两个实现弹簧效果
//anim.fromValue = @(self.testView.layer.position.y);
// anim.toValue = @(300);
// [self.testView pop_addAnimation:anim forKey:@"key"];
// anim.completionBlock = ^(POPAnimation *anim, BOOL finished){
// QFMLog(@"动画结束");
// };
3、以上方法是改变view的alpha，使控件的alpha渐变，以下还有很多种动画方式
// CALayer
NSString * const kPOPLayerBackgroundColor = @"backgroundColor";
NSString * const kPOPLayerBounds = @"bounds";
NSString * const kPOPLayerCornerRadius = @"cornerRadius";
NSString * const kPOPLayerBorderWidth = @"borderWidth";
NSString * const kPOPLayerBorderColor = @"borderColor";
NSString * const kPOPLayerOpacity = @"opacity";
NSString * const kPOPLayerPosition = @"position";
NSString * const kPOPLayerPositionX = @"positionX";
NSString * const kPOPLayerPositionY = @"positionY";
NSString * const kPOPLayerRotation = @"rotation";
NSString * const kPOPLayerRotationX = @"rotationX";
NSString * const kPOPLayerRotationY = @"rotationY";
NSString * const kPOPLayerScaleX = @"scaleX";
NSString * const kPOPLayerScaleXY = @"scaleXY";
NSString * const kPOPLayerScaleY = @"scaleY";
NSString * const kPOPLayerSize = @"size";
NSString * const kPOPLayerSubscaleXY = @"subscaleXY";
NSString * const kPOPLayerSubtranslationX = @"subtranslationX";
NSString * const kPOPLayerSubtranslationXY = @"subtranslationXY";
NSString * const kPOPLayerSubtranslationY = @"subtranslationY";
NSString * const kPOPLayerSubtranslationZ = @"subtranslationZ";
NSString * const kPOPLayerTranslationX = @"translationX";
NSString * const kPOPLayerTranslationXY = @"translationXY";
NSString * const kPOPLayerTranslationY = @"translationY";
NSString * const kPOPLayerTranslationZ = @"translationZ";
NSString * const kPOPLayerZPosition = @"zPosition";
NSString * const kPOPLayerShadowColor = @"shadowColor";
NSString * const kPOPLayerShadowOffset = @"shadowOffset";
NSString * const kPOPLayerShadowOpacity = @"shadowOpacity";
NSString * const kPOPLayerShadowRadius = @"shadowRadius";
// CAShapeLayer
NSString * const kPOPShapeLayerStrokeStart = @"shapeLayer.strokeStart";
NSString * const kPOPShapeLayerStrokeEnd = @"shapeLayer.strokeEnd";
NSString * const kPOPShapeLayerStrokeColor = @"shapeLayer.strokeColor";
NSString * const kPOPShapeLayerFillColor = @"shapeLayer.fillColor";
NSString * const kPOPShapeLayerLineWidth = @"shapeLayer.lineWidth";
NSString * const kPOPShapeLayerLineDashPhase = @"shapeLayer.lineDashPhase";
// NSLayoutConstraint
NSString * const kPOPLayoutConstraintConstant = @"layoutConstraint.constant";
#if TARGET_OS_IPHONE
// UIView
NSString * const kPOPViewAlpha = @"view.alpha";
NSString * const kPOPViewBackgroundColor = @"view.backgroundColor";
NSString * const kPOPViewBounds = kPOPLayerBounds;
NSString * const kPOPViewCenter = @"view.center";
NSString * const kPOPViewFrame = @"view.frame";
NSString * const kPOPViewScaleX = @"view.scaleX";
NSString * const kPOPViewScaleXY = @"view.scaleXY";
NSString * const kPOPViewScaleY = @"view.scaleY";
NSString * const kPOPViewSize = kPOPLayerSize;
NSString * const kPOPViewTintColor = @"view.tintColor";
// UIScrollView
NSString * const kPOPScrollViewContentOffset = @"scrollView.contentOffset";
NSString * const kPOPScrollViewContentSize = @"scrollView.contentSize";
NSString * const kPOPScrollViewZoomScale = @"scrollView.zoomScale";
NSString * const kPOPScrollViewContentInset = @"scrollView.contentInset";
NSString * const kPOPScrollViewScrollIndicatorInsets = @"scrollView.scrollIndicatorInsets";
// UITableView
NSString * const kPOPTableViewContentOffset = kPOPScrollViewContentOffset;
NSString * const kPOPTableViewContentSize = kPOPScrollViewContentSize;
// UICollectionView
NSString * const kPOPCollectionViewContentOffset = kPOPScrollViewContentOffset;
NSString * const kPOPCollectionViewContentSize = kPOPScrollViewContentSize;
// UINavigationBar
NSString * const kPOPNavigationBarBarTintColor = @"navigationBar.barTintColor";
// UIToolbar
NSString * const kPOPToolbarBarTintColor = kPOPNavigationBarBarTintColor;
// UITabBar
NSString * const kPOPTabBarBarTintColor = kPOPNavigationBarBarTintColor;
// UILabel
NSString * const kPOPLabelTextColor = @"label.textColor";
#else
// NSView
NSString * const kPOPViewFrame = @"view.frame";
NSString * const kPOPViewBounds = @"view.bounds";
NSString * const kPOPViewAlphaValue = @"view.alphaValue";
NSString * const kPOPViewFrameRotation = @"view.frameRotation";
NSString * const kPOPViewFrameCenterRotation = @"view.frameCenterRotation";
NSString * const kPOPViewBoundsRotation = @"view.boundsRotation";
// NSWindow
NSString * const kPOPWindowFrame = @"window.frame";
NSString * const kPOPWindowAlphaValue = @"window.alphaValue";
NSString * const kPOPWindowBackgroundColor = @"window.backgroundColor";
#endif
#if SCENEKIT_SDK_AVAILABLE
// SceneKit
NSString * const kPOPSCNNodePosition = @"scnode.position";
NSString * const kPOPSCNNodePositionX = @"scnnode.position.x";
NSString * const kPOPSCNNodePositionY = @"scnnode.position.y";
NSString * const kPOPSCNNodePositionZ = @"scnnode.position.z";
NSString * const kPOPSCNNodeTranslation = @"scnnode.translation";
NSString * const kPOPSCNNodeTranslationX = @"scnnode.translation.x";
NSString * const kPOPSCNNodeTranslationY = @"scnnode.translation.y";
NSString * const kPOPSCNNodeTranslationZ = @"scnnode.translation.z";
NSString * const kPOPSCNNodeRotation = @"scnnode.rotation";
NSString * const kPOPSCNNodeRotationX = @"scnnode.rotation.x";
NSString * const kPOPSCNNodeRotationY = @"scnnode.rotation.y";
NSString * const kPOPSCNNodeRotationZ = @"scnnode.rotation.z";
NSString * const kPOPSCNNodeRotationW = @"scnnode.rotation.w";
NSString * const kPOPSCNNodeEulerAngles = @"scnnode.eulerAngles";
NSString * const kPOPSCNNodeEulerAnglesX = @"scnnode.eulerAngles.x";
NSString * const kPOPSCNNodeEulerAnglesY = @"scnnode.eulerAngles.y";
NSString * const kPOPSCNNodeEulerAnglesZ = @"scnnode.eulerAngles.z";
NSString * const kPOPSCNNodeOrientation = @"scnnode.orientation";
NSString * const kPOPSCNNodeOrientationX = @"scnnode.orientation.x";
NSString * const kPOPSCNNodeOrientationY = @"scnnode.orientation.y";
NSString * const kPOPSCNNodeOrientationZ = @"scnnode.orientation.z";
NSString * const kPOPSCNNodeOrientationW = @"scnnode.orientation.w";
NSString * const kPOPSCNNodeScale = @"scnnode.scale";
NSString * const kPOPSCNNodeScaleX = @"scnnode.scale.x";
NSString * const kPOPSCNNodeScaleY = @"scnnode.scale.y";
NSString * const kPOPSCNNodeScaleZ = @"scnnode.scale.z";
NSString * const kPOPSCNNodeScaleXY = @"scnnode.scale.xy";
具体使用可以根据需求选择不同的动画方式