Make UISlider height larger?

Here's my recent swifty implementation, building on CularBytes's ...

open class CustomSlider : UISlider {
    @IBInspectable open var trackWidth:CGFloat = 2 {
        didSet {setNeedsDisplay()}
    }

    override open func trackRect(forBounds bounds: CGRect) -> CGRect {
        let defaultBounds = super.trackRect(forBounds: bounds)
        return CGRect(
            x: defaultBounds.origin.x,
            y: defaultBounds.origin.y + defaultBounds.size.height/2 - trackWidth/2,
            width: defaultBounds.size.width,
            height: trackWidth
        )
    }
}

Use this on a UISlider in a storyboard by setting its custom class

The IBInspectable allows you to set the height from the storyboard

The accepted answer will undesirably change the slider's width in some cases, like if you're using a minimumValueImage and maximumValueImage. If you only want to change the height and leave everything else alone, then use this code:

override func trackRect(forBounds bounds: CGRect) -> CGRect {
   var newBounds = super.trackRect(forBounds: bounds)
   newBounds.size.height = 12
   return newBounds
}