next method
void
next()
Implementation
void next() {
state!._startSlideAnimation(
state!._slideAnimation(state!._animationController, 0,
end: -state!.widget.size.height),
);
}
void next() {
state!._startSlideAnimation(
state!._slideAnimation(state!._animationController, 0,
end: -state!.widget.size.height),
);
}