How to get the center of the thumb image of UISlider

Question

I\'m creating a custom UISlider to test out some interface ideas. Mostly based around making the thumb image larger.

I found out how to do that, <

Answer 1

I tried this after reading the above suggestion -

yourLabel = [[UILabel alloc]initWithFrame:....];

//Call this method on Slider value change event

-(void)sliderValueChanged{
    CGRect trackRect = [self.slider trackRectForBounds:self.slider.bounds];
    CGRect thumbRect = [self.slider thumbRectForBounds:self.slider.bounds
                               trackRect:trackRect
                                   value:self.slider.value];

    yourLabel.center = CGPointMake(thumbRect.origin.x + self.slider.frame.origin.x,  self.slider.frame.origin.y - 20);
}

For Swift version

func sliderValueChanged() -> Void {
        let trackRect =  self.slider.trackRect(forBounds: self.slider.bounds)
        let thumbRect = self.slider.thumbRect(forBounds: self.slider.bounds, trackRect: trackRect, value: self.slider.value)
        yourLabel.center = CGPoint(x: thumbRect.origin.x + self.slider.frame.origin.x + 30, y: self.slider.frame.origin.y - 60)
    }

I could get most accurate value by using this snippet.