#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UIView *redView;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {

    //1.创建动画对象(设置layer的属性值.)

    CABasicAnimation *anim = [CABasicAnimation animation];

    //2.设置属性值

    anim.keyPath = @"position.x";

    anim.toValue = @;

    //动画完成时, 会自动删除动画

    anim.removedOnCompletion = NO;

    anim.fillMode = @"forwards";

    //3.添加动画：key值是为了区分不同的动画

    [self.redView.layer addAnimation:anim forKey:nil];

}

#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UIImageView *imageV;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

}

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {

    //创建动画对象

    CABasicAnimation *anim = [CABasicAnimation animation];

    //设置属性值

    anim.keyPath = @"transform.scale";

    anim.toValue = @;

    //设置动画执行次数

    anim.repeatCount = MAXFLOAT;

    //设置动画执行时长

    anim.duration = ;

    //自动反转(怎么样去 怎么样回来)

    anim.autoreverses = YES;

    //添加动画

    [self.imageV.layer addAnimation:anim forKey:nil];

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

@end