[Libgdx] How to handling touchpad?

[Hoichemgio9x]

• I have a touchpad. I tried touchpad.getKnobX> 0 and <0 (when swiping the knob left and right) the sprite still displayed but when I put touchpad.getKnobY> 0 and <0 (to swipe knob up and down) the sprite didn’t show Marketing. Why is that?