toggleScale method
Implementation
void toggleScale(List<AnimationController> aniController, int stepListLength) {
if (currentLevel == 0) {
aniController.elementAt(currentLevel).forward();
aniController.elementAt(currentLevel + 1).forward();
} else if (stepListLength == currentLevel) {
aniController.elementAt(currentLevel - 1).forward();
aniController.elementAt(currentLevel).reverse();
} else if (currentLevel == 1) {
aniController.elementAt(currentLevel - 1).reverse();
aniController.elementAt(currentLevel).reverse();
aniController.elementAt(currentLevel + 1).forward();
} else {
aniController.elementAt(currentLevel - 1).forward();
aniController.elementAt(currentLevel).reverse();
aniController.elementAt(currentLevel + 1).forward();
}
}