Hide UISlider thumb image

Question

I am trying to create a UISlider without the thumb image.

How can I do this, this is my code so far:

UISlider *sli = [[UISlider alloc] initWithFrame:progressView.frame];     [sli setThumbImage:nil forState:UIControlStateNormal];     [sli setBackgroundColor:[UIColor clearColor]];      [sli setMinimumTrackImage:[[UIImage imageNamed:@"ProgressBlueCap.png"] stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0] forState:UIControlStateNormal];     [sli setMaximumTrackImage:[[UIImage imageNamed:@"ProgressBlueCapRight.png"] stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0] forState:UIControlStateNormal]; 

Answer 1

Much simpler:

Objc

[sli setThumbImage:[[[UIImage alloc] init] autorelease] forState:UIControlStateNormal]; 

Swift version

sli.setThumbImage(UIImage(), for: .normal) 

Answer 2

The easiest way is simply setting the Thumb Tint colour to Clear on the Interface Builder - like so...

Voila!