#import "ViewController.h"@interface ViewController ()
@property(strong,nonatomic)CALayer *subLayer;@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];//创建子层self.subLayer = [CALayer layer];self.subLayer.bounds = CGRectMake(0, 0, 100, 100);self.subLayer.position = CGPointMake(100, 100);self.subLayer.cornerRadius = 50;self.subLayer.backgroundColor = [[UIColor greenColor]CGColor];[self.view.layer addSublayer:self.subLayer];UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tap:)];tap.numberOfTapsRequired = 1;//接受几个手指响应的事件tap.numberOfTouchesRequired = 1;[self.view addGestureRecognizer:tap];}
-(void)tap:(UITapGestureRecognizer *)sender
{CGPoint location = [sender locationInView:self.view];CABasicAnimation *basic = [[CABasicAnimation alloc]init];basic.duration = 3.0;//动画时长basic.keyPath = @"position";basic.removedOnCompletion = NO;basic.fillMode = kCAFillModeForwards;basic.delegate = self;//将动画的结束位置移动到点击的坐标处basic.toValue = [NSValue valueWithCGPoint:location];[self.subLayer addAnimation:basic forKey:@"basic"];}
- (IBAction)pauseClicked:(UIButton *)sender
{if (sender.tag == 0){//动画暂停[self animationPause];sender.tag = 1;}else{//动画恢复[self animationResume];sender.tag = 0;}
}
//动画暂停
-(void)animationPause
{//获取当前暂停的时间段CFTimeInterval pauseTime = [self.subLayer convertTime:CACurrentMediaTime() fromLayer:nil];NSLog(@"pausetTime:%f",pauseTime);//将速度降为0，动画停止self.subLayer.speed = 0.0;//保存暂停时间self.subLayer.timeOffset = pauseTime;
}
-(void)animationResume
{CFTimeInterval pauseTime = self.subLayer.timeOffset;self.subLayer.timeOffset = pauseTime;self.subLayer.speed = 1.0;self.subLayer.beginTime = 0.0;//计算开始时间CFTimeInterval beginTime = [self.subLayer convertTime:CACurrentMediaTime() fromLayer:nil]-pauseTime;self.subLayer.beginTime = beginTime;
//    NSLog(@"beginTime:%@",beginTime);}
#pragma mark - 动画代理的方法
//动画开始
-(void)animationDidStart:(CAAnimation *)anim
{NSLog(@"animationDidStart");
}
//动画结束
-(void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag
{//NSLog(@"%@",((CABasicAnimation *)anim).toValue);NSValue *toValue = ((CABasicAnimation *)anim).toValue;CGPoint location = [toValue CGPointValue];self.subLayer.position = location;
}@end

#import "ViewController.h"
#define MAX_TOUCH_NUM 5//最大点击次数
@interface ViewController ()
@property(strong,nonatomic)NSMutableArray *points;
@property(strong,nonatomic)CALayer *subLayer;
@property(assign,nonatomic)CGMutablePathRef path;
@property(strong,nonatomic)CALayer *drawLayer;@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];//添加绘图层self.drawLayer = [CALayer layer];self.drawLayer.bounds = self.view.bounds;self.drawLayer.position = self.view.center;self.drawLayer.backgroundColor = [[UIColor whiteColor]CGColor];[self.view.layer addSublayer:self.drawLayer];//创建子层self.subLayer = [CALayer layer];self.subLayer.bounds = CGRectMake(0, 0, 100, 100);self.subLayer.position = CGPointMake(100, 100);self.subLayer.backgroundColor = [[UIColor greenColor]CGColor];[self.view.layer addSublayer:self.subLayer];self.points = [NSMutableArray array];
//    //设置跟layer的代理self.drawLayer.delegate = self;}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{UITouch *touch = [touches anyObject];CGPoint location = [touch locationInView:self.view];//创建路径self.path = CGPathCreateMutable();CGPathMoveToPoint(self.path, nil, location.x, location.y);}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{//将当前点加到路径中去UITouch *touch = [touches anyObject];CGPoint location = [touch locationInView:self.view];CGPathAddLineToPoint(self.path,nil, location.x, location.y);[self.drawLayer setNeedsDisplay];
}
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{//创建帧动画(路径动画)CAKeyframeAnimation *keyFrame = [[CAKeyframeAnimation alloc]init];keyFrame.keyPath = @"position";keyFrame.path = self.path;keyFrame.duration = 3.0f;//设置动画保存在最后的位置keyFrame.removedOnCompletion = NO;keyFrame.fillMode = kCAFillModeForwards;keyFrame.delegate = self;[self.subLayer addAnimation:keyFrame forKey:@"keyFrame"];}
-(void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag
{CGPathRelease(self.path);
}
#pragma mark - 层绘制的代理方法
-(void)drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx
{CGContextAddPath(ctx, self.path);CGContextSetStrokeColorWithColor(ctx, [[UIColor blueColor]CGColor]);CGContextDrawPath(ctx, kCGPathStroke);}
@end

#import "ViewController.h"@interface ViewController ()
@property(strong,nonatomic)CALayer *subLayer;@end@implementation ViewController- (void)viewDidLoad {[super viewDidLoad];//创建子层self.subLayer = [CALayer layer];self.subLayer.bounds = CGRectMake(0, 0, 100, 100);self.subLayer.position = CGPointMake(100, 100);self.subLayer.backgroundColor = [[UIColor blueColor]CGColor];[self.view.layer addSublayer:self.subLayer];UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tap:)];tap.numberOfTapsRequired = 1;tap.numberOfTouchesRequired = 1;[self.view addGestureRecognizer:tap];
}
//创建旋转动画
-(CABasicAnimation *)rotationAnimationFromValue:(CGFloat)fromValue toValue:(CGFloat)toValue
{//创建基本动画CABasicAnimation *animationRotation = [[CABasicAnimation alloc]init];animationRotation.keyPath = @"transform.rotation.z";animationRotation.fromValue = @(fromValue);animationRotation.toValue = @(toValue);animationRotation.duration = 1.0f;animationRotation.removedOnCompletion = NO;animationRotation.fillMode = kCAFillModeForwards;return animationRotation;}
//创建缩放动画
-(CABasicAnimation *)scaleAnimationFromValue:(CGFloat)fromValue toValue:(CGFloat)toValue
{CABasicAnimation *scaleAnimation = [[CABasicAnimation alloc]init];scaleAnimation.keyPath = @"transform.scale";scaleAnimation.fromValue = @(fromValue);scaleAnimation.toValue = @(toValue);scaleAnimation.duration = 2.0f;scaleAnimation.removedOnCompletion = NO;scaleAnimation.fillMode = kCAFillModeForwards;return scaleAnimation;}
-(void)tap:(UITapGestureRecognizer *)sender
{//创建动画组CAAnimationGroup *group = [[CAAnimationGroup alloc]init];NSArray *animations = @[[self rotationAnimationFromValue:-M_PI toValue:-M_PI_4],                        [self scaleAnimationFromValue:1.0 toValue:2.0]];group.animations = animations;//动画组中的动画的属性，受动画组的控制(比如：动画内设置了大小，时长，在动画组内不起作用，以动画组设置为准)group.duration = 4.0f;
//        group.removedOnCompletion = NO;
//        group.fillMode = kCAFillModeForwards;//延时执行
//    group.beginTime = CACurrentMediaTime()+1.0f;[self.subLayer addAnimation:group forKey:@"animation"];}
@end

#import "ViewController.h"@interface ViewController ()
@property(strong,nonatomic)UIImageView *imageView;
@property(assign,nonatomic)NSInteger index;@end@implementation ViewController- (void)viewDidLoad
{[super viewDidLoad];self.index = 0;//创建imageView；self.imageView = [[UIImageView alloc]initWithFrame:self.view.frame];self.imageView.contentMode = UIViewContentModeScaleAspectFit;self.imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%ld.jpg",self.index]];self.imageView.userInteractionEnabled = YES;[self.view addSubview:self.imageView];UISwipeGestureRecognizer *leftSwipe = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(leftSwipe:)];leftSwipe.direction = UISwipeGestureRecognizerDirectionLeft;[self.imageView addGestureRecognizer:leftSwipe];UISwipeGestureRecognizer *rightSwipe = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(leftSwipe:)];rightSwipe.direction = UISwipeGestureRecognizerDirectionRight;[self.imageView addGestureRecognizer:rightSwipe];
}
-(void)leftSwipe:(UISwipeGestureRecognizer *)sender
{if (sender.direction == UISwipeGestureRecognizerDirectionLeft){if (self.index > 0){self.index--;}}else{if (self.index < 9){self.index++;}}//过场动画CATransition *transition = [[CATransition alloc]init];//动画类型transition.type = @"cube";//设置方向transition.subtype = kCATransitionFromBottom;//设置时长transition.duration = 0.5f;//添加动画[self.imageView.layer addAnimation:transition forKey:@"transition"];self.imageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%ld.jpg",self.index]];
}@end

　　到此，核心动画就完结了。