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How to animate a image up and down smoothly. iphone [closed]
UIImageView *someImage = .....
CALayer *b = someImage.layer;
// Create a keyframe animation to follow a path to the projected point
CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"scale"];
animation.removedOnCompletion = NO;

// Create the path for the bounces
CGMutablePathRef thePath = CGPathCreateMutable();

// Start the path at my current location
CGPathMoveToPoint(thePath, NULL, someImage.center.x, someImage.center.y);
CGPathAddLineToPoint(thePath, NULL,20, 500.0);

animation.path = thePath;

animation.speed = 0.011;
animation.repeatCount = 1000000;

// Add the animation to the layer
[someImage addAnimation:animation forKey:@"move"];

- (void) showProgressView
{
if (progressViewBack.frame.origin.y == 460.0)
{
    [self.view bringSubviewToFront:progressViewBack];
    [progressViewBack setFrame:CGRectMake(6.0, 460, 308.0, 126.0)];
    [progressViewBack setBounds:CGRectMake(0, 0, 308, 126.0)];

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:1.0];
    [UIView setAnimationDelegate:self];
    [progressViewBack setFrame:CGRectMake(6.0, 334.0, 308.0, 126.0)];
    [UIView commitAnimations];
}
else if (progressViewBack.frame.origin.y == 334.0)
{
    [progressViewBack setFrame:CGRectMake(6.0, 334.0, 308.0, 126.0)];
    [progressViewBack setBounds:CGRectMake(0, 0, 308.0, 126.0)];

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:1.0];
    [UIView setAnimationDelegate:self];
    [progressViewBack setFrame:CGRectMake(6.0, 460.0, 308.0, 126.0)];
    [UIView commitAnimations];
}