/*     CAKeyframeAnimation *pathAnimation = [CAKeyframeAnimation     animationWithKeyPath:@"position"];     pathAnimation.calculationMode = kCAAnimationPaced;     pathAnimation.fillMode = kCAFillModeForwards;     pathAnimation.removedOnCompletion = NO;     pathAnimation.duration = 15.0;     pathAnimation.repeatCount = 1;     CGMutablePathRef curvedPath = CGPathCreateMutable();     CGPathMoveToPoint(curvedPath, NULL, x+15, y);     CGPathAddQuadCurveToPoint(curvedPath, NULL, 20, 10, 100, 330);     pathAnimation.path = curvedPath;     CGPathRelease(curvedPath);     Yourimage.center=CGPointMake(x, y);     [Yourimage.layer addAnimation:pathAnimation forKey:@"moveTheSquare"];          */                UIView *aView = [[UIView alloc]initWithFrame:CGRectMake(150, 50, 20, 20)];          aView.backgroundColor = [UIColor greenColor];    CAKeyframeAnimation *pathAnimation = [CAKeyframeAnimation                                          animationWithKeyPath:@"position"];    pathAnimation.calculationMode = kCAAnimationPaced;    pathAnimation.fillMode = kCAFillModeForwards;    pathAnimation.removedOnCompletion = NO;    pathAnimation.duration = 0.5;    pathAnimation.repeatCount = 20;    CGMutablePathRef curvedPath = CGPathCreateMutable();    CGPathAddArc(curvedPath, NULL, 160, 240, 100, 0,2*M_PI , 0);    pathAnimation.path = curvedPath;    CGPathRelease(curvedPath);    [aView.layer addAnimation:pathAnimation forKey:@"moveTheCircleOne"];        [self.view addSubview:aView];