IOS开发基础之核心动画基础动画、关键帧、组动画案例

//

//  ViewController.m

//  30-核心动画

//

//

#import "ViewController.h"

@interface ViewController ()

@property(nonatomic,weak)CALayer *layer;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

     UIView *redView =[[UIView alloc] init];

    redView.frame =CGRectMake(100, 100, 20, 20);

    redView.backgroundColor =[UIColor redColor];

    self.layer=redView.layer ;

    [self.view addSubview:redView];

}

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

   //组动画

    CAAnimationGroup *group = [[CAAnimationGroup alloc] init];

    //创建动画对象 （做什么动画）

    CABasicAnimation *anim = [[CABasicAnimation alloc]init];

    anim.keyPath = @"transform.rotation";

    anim.byValue =@(2*M_PI*10);

    CAKeyframeAnimation *anim1=[[CAKeyframeAnimation alloc] init];

    anim1.keyPath = @"position";

    UIBezierPath * path=[UIBezierPath bezierPathWithArcCenter:CGPointMake(150, 150) radius:100 startAngle:0 endAngle:2*M_PI clockwise:1];

    anim1.path = path.CGPath;

    group.animations=@[anim,anim1];

    group.duration = 3;

    group.repeatCount = INT_MAX; // 重复的次数

    //怎么做动画

    //添加动画（对谁做动画）

    [self.layer addAnimation:group forKey:nil];

}

//关键帧

-(void)test2{

    //关键帧

      //创建动画对象 （做什么动画）

      CAKeyframeAnimation *anim = [[CAKeyframeAnimation alloc] init];

      //怎么做动画

      anim.keyPath=@"position";

    /*  NSValue *v1 =[NSValue valueWithCGPoint:CGPointMake(100, 100)];

      NSValue *v2 =[NSValue valueWithCGPoint:CGPointMake(150, 100)];

      NSValue *v3 =[NSValue valueWithCGPoint:CGPointMake(100, 150)];

      NSValue *v4 =[NSValue valueWithCGPoint:CGPointMake(150,150 )];

      anim.values =@[v1,v2,v3,v4];

     */

      UIBezierPath * path=[UIBezierPath bezierPathWithArcCenter:CGPointMake(150, 150) radius:100 startAngle:0 endAngle:2*M_PI clockwise:1];

      anim.path = path.CGPath;

      anim.duration = 2;

      anim.repeatCount = INT_MAX; // 重复的次数

      //添加动画（对谁做动画）

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

}

//基础动画

-(void)testbaseAnimation{

    //创建动画对象 （做什么动画）

      CABasicAnimation *animation = [[CABasicAnimation alloc] init];

      //怎么做动画

      animation.keyPath = @"position.x";

      /*animation.fromValue =@(10); 从哪

      animation.toValue = @(300);  到哪

      */

      //每次加10px

      animation.byValue = @(10);

      //不回去原来的地方

      animation.fillMode = kCAFillModeForwards;

      animation.removedOnCompletion=NO;

      //添加动画（对谁做动画）

      [self.layer addAnimation:animation forKey:nil];

}

@end



//  LJView.m

//  30-核心动画

//

//

#import "LJView.h"

@implementation LJView

/*

// Only override drawRect: if you perform custom drawing.

// An empty implementation adversely affects performance during animation.

*/

- (void)drawRect:(CGRect)rect {

    // Drawing code

    UIBezierPath * path=[UIBezierPath bezierPathWithArcCenter:CGPointMake(150, 150) radius:100 startAngle:0 endAngle:2*M_PI clockwise:1];

    [path stroke];

}

@end

巴特西

IOS开发基础之核心动画基础动画、关键帧、组动画案例

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巴特西

IOS开发基础之核心动画 基础动画、关键帧、组动画案例

最新文章

热门文章

IOS开发基础之核心动画基础动画、关键帧、组动画案例