standardTransitionsBuilder function

RouteTransitionsBuilder standardTransitionsBuilder(TransitionType? transitionType)

Implementation

RouteTransitionsBuilder standardTransitionsBuilder(
    TransitionType? transitionType) {
  return (BuildContext context, Animation<double> animation,
      Animation<double> secondaryAnimation, Widget child) {
    if (transitionType == TransitionType.fadeIn) {
      return FadeTransition(opacity: animation, child: child);
    } else {
      const Offset topLeft = Offset(0.0, 0.0);
      const Offset topRight = Offset(1.0, 0.0);
      const Offset bottomLeft = Offset(0.0, 1.0);
      Offset startOffset = bottomLeft;
      Offset endOffset = topLeft;
      if (transitionType == TransitionType.inFromLeft) {
        startOffset = const Offset(-1.0, 0.0);
        endOffset = topLeft;
      } else if (transitionType == TransitionType.inFromRight) {
        startOffset = topRight;
        endOffset = topLeft;
      }

      return SlideTransition(
        position: Tween<Offset>(
          begin: startOffset,
          end: endOffset,
        ).animate(animation),
        child: child,
      );
    }
  };
}