Ionic Scroll to a negative position

Question

Ionic Scroll to a negative position

I have an ion scroll that scrolls accourding other component. To do that i use the function scroll1.scrollTo(left, top, false);

However, this function doesn't allow to scroll to a negative position like

scroll1.scrollTo(left, -50, false);

So is it possible to achieve this ?

My scroll must do scrolling without any user interaction (this is why i use the scrollTo function), and my main goal with the negative top position is to simulate a bouncing effect.

javascript
angularjs
ionic-framework
ionic

Answer 1

This is clearly possible with VelocityJS Velocity is a very powerfull FULL Javascript animation / scroll and much more librairy.

Demo of velocity Scroll : demo scroll velocity

$element
    /* Then scroll to a position 250 pixels BELOW the div. */
    .velocity("scroll", { duration: 750, offset: 250 })
    /* Scroll to a position 50 pixels ABOVE the div. */
    .velocity("scroll", { duration: 750, offset: -50 });