Play Sound by sliding finger over number of buttons

You done a great job @Django_s_Android_App , i tested the aia as well as the apk. But Its not the solution because if i use canvas, lots of issues will come along -

  1. I can’t add many keys as, we can’t slide the canvas.
  2. There will be no effect of pressing any button as the image in canvas is still and fixed.
  3. The biggest problem is if we miss any particular point of key with finger, the sound won’t play.
  4. Even i tried to slide my finger on canvas, some sounds missed in between.

Thank you for your efforts. But need a proper solution only using labels/Buttons