ios开发之核心动画四：核心动画-Core Animation--CABasicAnimation基础核心动画

#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 = @300;
    
    //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 = @0;

    //设置动画执行次数
    anim.repeatCount = MAXFLOAT;
    
    //设置动画执行时长
    anim.duration = 3;
    
    //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