Make NativeScript move.

Presets, springs, keyframes and stagger for NativeScript views, one call each. Computed once in JavaScript, played by the platform.

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What Jolt is

Presets

One call

animate(card, 'fadeInUp'), animate(button, { scale: 1.1 }, 'bouncy'), animate(rows, 'fadeInUp', { stagger: 40 }). That's the whole API for most screens.

Springs with real physics

Describe them by feel, by bounce and duration, or by stiffness, damping and mass. An interrupted spring keeps its velocity.

Keyframes and easing per segment

Lists of values with exact times, an easing per segment, cubic beziers or any function. Custom easings run once, not per frame.

Nothing runs while it plays

The motion goes to Core Animation on iOS and ObjectAnimator on Android as keyframes. JavaScript is free during the animation.

Sequences, stagger and press

Steps that start when the previous one looks done, staggers from the first, the last or the center, and press effects that let go when a scroll takes over.

Interruptions without a jump

A new animation on a moving property starts from the value on screen, at the speed it was going.