callback method

T callback({
  1. Duration? delay,
  2. Duration? duration,
  3. required ValueChanged<bool> callback,
})

Adds a CallbackEffect that calls a callback function at a particular point in the animation. It includes a boolean value indicating if the animation is playing in reverse.

Implementation

T callback({
  Duration? delay,
  Duration? duration,
  required ValueChanged<bool> callback,
}) =>
    addEffect(CallbackEffect(
      delay: delay,
      duration: duration,
      callback: callback,
    ));