buildPageTransitions<T> static method

Widget buildPageTransitions<T>(PageRoute<T> rawRoute, BuildContext context, Animation<double> animation, Animation<double> secondaryAnimation, Widget child, { bool limitedSwipe = false, double initialOffset = 0, })

Returns a CupertinoFullscreenDialogTransition if route is a full screen dialog, otherwise a CupertinoPageTransition is returned.

Used by CupertinoPageRoute.buildTransitions.

This method can be applied to any PageRoute, not just CupertinoPageRoute. It's typically used to provide a Cupertino style horizontal transition for material widgets when the target platform is TargetPlatform.iOS.

See also:

• CupertinoPageTransitionsBuilder, which uses this method to define a PageTransitionsBuilder for the PageTransitionsTheme.

Implementation

static Widget buildPageTransitions<T>(
  PageRoute<T> rawRoute,
  BuildContext context,
  Animation<double> animation,
  Animation<double> secondaryAnimation,
  Widget child, {
  bool limitedSwipe = false,
  double initialOffset = 0,
}) {
  // Check if the route has an animation that's currently participating
  // in a back swipe gesture.
  //
  // In the middle of a back gesture drag, let the transition be linear to
  // match finger motions.
  final GetPageRoute<T> route = rawRoute as GetPageRoute<T>;
  final bool linearTransition = route.popGestureInProgress;
  final Curve finalCurve = route.curve ?? Get.defaultTransitionCurve;
  final bool hasCurve = route.curve != null;
  if (route.fullscreenDialog && route.transition == null) {
    return CupertinoFullscreenDialogTransition(
      primaryRouteAnimation: hasCurve
          ? CurvedAnimation(parent: animation, curve: finalCurve)
          : animation,
      secondaryRouteAnimation: secondaryAnimation,
      linearTransition: linearTransition,
      child: child,
    );
  } else {
    if (route.customTransition != null) {
      return route.customTransition!.buildTransition(
        context,
        finalCurve,
        route.alignment,
        animation,
        secondaryAnimation,
        GetBackGestureDetector<T>(
          popGestureEnable: () =>
              _isPopGestureEnabled(route, canSwipe(route), context),
          onStartPopGesture: () {
            assert(_isPopGestureEnabled(route, canSwipe(route), context));
            return _startPopGesture(route);
          },
          limitedSwipe: limitedSwipe,
          gestureWidth:
              route.gestureWidth?.call(context) ?? _kBackGestureWidth,
          initialOffset: initialOffset,
          child: child,
        ),
      );
    }

    /// Apply the curve by default...
    final Animation<double> iosAnimation = animation;
    animation = CurvedAnimation(parent: animation, curve: finalCurve);

    switch (route.transition ?? Get.defaultTransition) {
      case Transition.leftToRight:
        return SlideLeftTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.downToUp:
        return SlideDownTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.upToDown:
        return SlideTopTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.noTransition:
        return GetBackGestureDetector<T>(
          popGestureEnable: () =>
              _isPopGestureEnabled(route, canSwipe(route), context),
          onStartPopGesture: () {
            assert(_isPopGestureEnabled(route, canSwipe(route), context));
            return _startPopGesture(route);
          },
          limitedSwipe: limitedSwipe,
          gestureWidth:
              route.gestureWidth?.call(context) ?? _kBackGestureWidth,
          initialOffset: initialOffset,
          child: child,
        );

      case Transition.rightToLeft:
        return SlideRightTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.zoom:
        return ZoomInTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.fadeIn:
        return FadeInTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.rightToLeftWithFade:
        return RightToLeftFadeTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.leftToRightWithFade:
        return LeftToRightFadeTransition().buildTransitions(
          context,
          route.curve,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.cupertino:
        return CupertinoPageTransition(
          primaryRouteAnimation: animation,
          secondaryRouteAnimation: secondaryAnimation,
          linearTransition: linearTransition,
          child: GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.size:
        return SizeTransitions().buildTransitions(
          context,
          route.curve!,
          route.alignment,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.fade:
        return const FadeUpwardsPageTransitionsBuilder().buildTransitions(
          route,
          context,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.topLevel:
        return const ZoomPageTransitionsBuilder().buildTransitions(
          route,
          context,
          animation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      case Transition.native:
        return const PageTransitionsTheme().buildTransitions(
          route,
          context,
          iosAnimation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(_isPopGestureEnabled(route, canSwipe(route), context));
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );

      default:
        final CustomTransition? customTransition =
            GetRoot.of(context).config.customTransition;

        if (customTransition != null) {
          return customTransition.buildTransition(
            context,
            route.curve,
            route.alignment,
            animation,
            secondaryAnimation,
            child,
          );
        }

        final PageTransitionsTheme pageTransitionsTheme =
            Theme.of(context).pageTransitionsTheme;

        return pageTransitionsTheme.buildTransitions(
          route,
          context,
          iosAnimation,
          secondaryAnimation,
          GetBackGestureDetector<T>(
            popGestureEnable: () =>
                _isPopGestureEnabled(route, canSwipe(route), context),
            onStartPopGesture: () {
              assert(
                _isPopGestureEnabled(route, canSwipe(route), context),
              );
              return _startPopGesture(route);
            },
            limitedSwipe: limitedSwipe,
            gestureWidth:
                route.gestureWidth?.call(context) ?? _kBackGestureWidth,
            initialOffset: initialOffset,
            child: child,
          ),
        );
    }
  }
}