Setting alpha = 0 on slider

[BobGordon]

I have a slider on which I would like to set its alpha to zero. This effectively makes it invisible. This works fine on a label in the viewDidLoad method.

On a slider it seems to have no effect (although setting the value does).

Any ideas?

[Bovn]

This works for me:

mySlider.hidden = YES;

A tip; if you intend to hide the slider and another view - such as the UILabel you described - it is easier to just drag a UIView in Interface Builder to your project and then add all those objects as subviews to that view. If you hide that one they will all hide. This works since they become subclassed to that specific UIView and thus inherit the given hidden property of their parent class.

[BobGordon]

Originally Posted by Bovn

This works for me:

mySlider.hidden = YES;

This does work in the sense that the slider is hidden. The reason I was setting the alpha is so when the user touches a "find" button the slider (and a couple of other objects) gradually come into view. Works well except for the slider.

Note that when the find is done, the objects and slider have their alphas set back to zero, and that works fine. It's only when first showing the view that the problem occurs.