멀티 애니메이션

#define RANDOM_INT(MIN,MAX)  ( (MIN) + arc4random() %  ((MAX+1)-(MIN)) )

//CGSize offSize = [UIScreen mainScreen].bounds.size;

-(void)airAutoAnimation{

    

    /* 움직이기 위한 대상 레이어를 만듭니다. */

    CALayer *layer1 = [CALayer layer];

    layer1.bounds = CGRectMake(0, 0, 20, 20);

    int x = RANDOM_INT(0, 320) ;

    int y = RANDOM_INT(0, 480) ;

    layer1.position = CGPointMake( x, y );

    layer1.cornerRadius = 20;

    layer1.backgroundColor = [UIColor redColor].CGColor;

   // [layer1 setHidden:YES];

    [self.view.layer addSublayer:layer1]; // 만든 레이어를 뷰 레이어에 올립니다.

    

    /* 이동할 위치 지정 */

    CGMutablePathRef path1 = CGPathCreateMutable();

    CGPathMoveToPoint(path1,NULL,layer1.position.x, layer1.position.y);

    CGPathAddLineToPoint(path1, NULL, layer1.position.x, layer1.position.y + 150);

    CGPathAddLineToPoint(path1, NULL, layer1.position.x + 100, layer1.position.y + 100);

    CGPathAddLineToPoint(path1, NULL, layer1.position.x, layer1.position.y + 0);

    

    /* 이동 애니메이션 작성 */

    CAKeyframeAnimation *moveAni1 = [CAKeyframeAnimation animationWithKeyPath:@"position"];

    moveAni1.path = path1;

    moveAni1.rotationMode = kCAAnimationRotateAuto;

    moveAni1.duration = 5.0;

    

    /* 스케일 애니메이션 작성 */

    CABasicAnimation *scalAni1 = [CABasicAnimation animationWithKeyPath:@"transform"];

    scalAni1.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity];

    scalAni1.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(0.1, 0.1, 1.0)];

    scalAni1.duration = 5.0;

    

    /* 투명 애니메이션 작성 */

    CABasicAnimation *opacityAni1 = [CABasicAnimation animationWithKeyPath:@"opacity"];

    opacityAni1.fromValue = [NSNumber numberWithFloat:1.0];

    opacityAni1.toValue = [NSNumber numberWithFloat:0.1];

    opacityAni1.duration = 5.0;

    

    /* 애니메이션 그룹 작성 */

    CAAnimationGroup *group = [CAAnimationGroup animation];

    group.animations = [NSArray arrayWithObjects:moveAni1, scalAni1, opacityAni1, nil];

    group.duration = 5.0;

    

    [layer1 addAnimation:group forKey:nil]; //레이어에 그룹애니메이션 적용

    //[layer1 removeFromSuperlayer];

/*    

    timerCounter++;

    if (timerCounter > 5) {

        [timer invalidate];

        timer = nil;

    }*/

    

}