Programmatically change a Frame position

Question

I've created programmatically a View, an UIImageView and a Button. The problem is that i need to update their position if the device switches from Portrait to Landscape, how can I do it?

This should be the code that checks if the Device is in Portrait or Landscape mode

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
    {


    }
    else
    {


    }
}

Answer 1

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
    {
//change the frame for sideways direction
btn.frame=CGRectMake(x,y,width,height);
imgView.frame=CGRectMake(x,y,width,height);
view.frame=CGRectMake(x,y,width,height);
    }
else
    {
//change the frame for up/down
btn.frame=CGRectMake(x,y,width,height);
imgView.frame=CGRectMake(x,y,width,height);
view.frame=CGRectMake(x,y,width,height);
    }
 }