update to 3.2.2

+## [3.2.2]
+- Improve transitions and refactor route system
+
 ## [3.2.1]
 ## [3.2.1]
 - Prevent black blackground on cupertino fullscreenDialog
 - Prevent black blackground on cupertino fullscreenDialog
 
 

@@ -62,7 +62,7 @@ class GetImpl implements GetService {
         transition: transition ?? defaultTransition,
         transition: transition ?? defaultTransition,
         fullscreenDialog: fullscreenDialog,
         fullscreenDialog: fullscreenDialog,
         binding: binding,
         binding: binding,
-        duration: duration ?? defaultDurationTransition));
+        transitionDuration: duration ?? defaultDurationTransition));
   }
   }
 
 
   /// It replaces Navigator.pushNamed, but needs no context, and it doesn't have the Navigator.pushNamed
   /// It replaces Navigator.pushNamed, but needs no context, and it doesn't have the Navigator.pushNamed
@@ -195,7 +195,7 @@ class GetImpl implements GetService {
         fullscreenDialog: fullscreenDialog,
         fullscreenDialog: fullscreenDialog,
         popGesture: popGesture ?? defaultPopGesture,
         popGesture: popGesture ?? defaultPopGesture,
         transition: transition ?? defaultTransition,
         transition: transition ?? defaultTransition,
-        duration: duration ?? defaultDurationTransition));
+        transitionDuration: duration ?? defaultDurationTransition));
   }
   }
 
 
   /// It replaces Navigator.pushAndRemoveUntil, but needs no context
   /// It replaces Navigator.pushAndRemoveUntil, but needs no context
@@ -221,7 +221,7 @@ class GetImpl implements GetService {
               RouteSettings(name: '/${page.runtimeType}', arguments: arguments),
               RouteSettings(name: '/${page.runtimeType}', arguments: arguments),
           fullscreenDialog: fullscreenDialog,
           fullscreenDialog: fullscreenDialog,
           transition: transition ?? defaultTransition,
           transition: transition ?? defaultTransition,
-          duration: duration ?? defaultDurationTransition,
+          transitionDuration: duration ?? defaultDurationTransition,
         ),
         ),
         predicate ?? route);
         predicate ?? route);
   }
   }
@@ -583,7 +583,7 @@ class GetImpl implements GetService {
 
 
   ParseRouteTree routeTree;
   ParseRouteTree routeTree;
 
 
-  addPages(List<GetPage> getPages) {
+  void addPages(List<GetPage> getPages) {
     if (getPages != null) {
     if (getPages != null) {
       if (routeTree == null) routeTree = ParseRouteTree();
       if (routeTree == null) routeTree = ParseRouteTree();
       getPages.forEach((element) {
       getPages.forEach((element) {
@@ -592,7 +592,7 @@ class GetImpl implements GetService {
     }
     }
   }
   }
 
 
-  addPage(GetPage getPage) {
+  void addPage(GetPage getPage) {
     if (getPage != null) {
     if (getPage != null) {
       if (routeTree == null) routeTree = ParseRouteTree();
       if (routeTree == null) routeTree = ParseRouteTree();
       routeTree.addRoute(getPage);
       routeTree.addRoute(getPage);
@@ -600,7 +600,7 @@ class GetImpl implements GetService {
   }
   }
 
 
   /// change default config of Get
   /// change default config of Get
-  config(
+  void config(
       {bool enableLog,
       {bool enableLog,
       bool defaultPopGesture,
       bool defaultPopGesture,
       bool defaultOpaqueRoute,
       bool defaultOpaqueRoute,
@@ -696,11 +696,11 @@ class GetImpl implements GetService {
 
 
   Map<String, String> parameters = {};
   Map<String, String> parameters = {};
 
 
-  setRouting(Routing rt) {
+  void setRouting(Routing rt) {
     _routing = rt;
     _routing = rt;
   }
   }
 
 
-  setSettings(RouteSettings settings) {
+  void setSettings(RouteSettings settings) {
     settings = settings;
     settings = settings;
   }
   }
 
 
@@ -708,10 +708,10 @@ class GetImpl implements GetService {
   Object get arguments => _routing.args;
   Object get arguments => _routing.args;
 
 
   /// give name from current route
   /// give name from current route
-  get currentRoute => _routing.current;
+  String get currentRoute => _routing.current;
 
 
   /// give name from previous route
   /// give name from previous route
-  get previousRoute => _routing.previous;
+  String get previousRoute => _routing.previous;
 
 
   /// check if snackbar is open
   /// check if snackbar is open
   bool get isSnackbarOpen => _routing.isSnackbar;
   bool get isSnackbarOpen => _routing.isSnackbar;
@@ -747,10 +747,11 @@ class GetImpl implements GetService {
   MediaQueryData get mediaQuery => MediaQuery.of(context);
   MediaQueryData get mediaQuery => MediaQuery.of(context);
 
 
   /// Check if dark mode theme is enable
   /// Check if dark mode theme is enable
-  get isDarkMode => (theme.brightness == Brightness.dark);
+  bool get isDarkMode => (theme.brightness == Brightness.dark);
 
 
   /// Check if dark mode theme is enable on platform on android Q+
   /// Check if dark mode theme is enable on platform on android Q+
-  get isPlatformDarkMode => (mediaQuery.platformBrightness == Brightness.dark);
+  bool get isPlatformDarkMode =>
+      (mediaQuery.platformBrightness == Brightness.dark);
 
 
   /// give access to Theme.of(context).iconTheme.color
   /// give access to Theme.of(context).iconTheme.color
   Color get iconColor => Theme.of(context).iconTheme.color;
   Color get iconColor => Theme.of(context).iconTheme.color;

@@ -124,7 +124,8 @@ class GetMaterialApp extends StatelessWidget {
         customTransition: match.route.customTransition,
         customTransition: match.route.customTransition,
         binding: unknownRoute.binding,
         binding: unknownRoute.binding,
         bindings: unknownRoute.bindings,
         bindings: unknownRoute.bindings,
-        duration: (transitionDuration ?? unknownRoute.transitionDuration),
+        transitionDuration:
+            (transitionDuration ?? unknownRoute.transitionDuration),
         transition: unknownRoute.transition,
         transition: unknownRoute.transition,
         popGesture: unknownRoute.popGesture,
         popGesture: unknownRoute.popGesture,
         fullscreenDialog: unknownRoute.fullscreenDialog,
         fullscreenDialog: unknownRoute.fullscreenDialog,
@@ -141,7 +142,8 @@ class GetMaterialApp extends StatelessWidget {
       customTransition: match.route.customTransition,
       customTransition: match.route.customTransition,
       binding: match.route.binding,
       binding: match.route.binding,
       bindings: match.route.bindings,
       bindings: match.route.bindings,
-      duration: (transitionDuration ?? match.route.transitionDuration),
+      transitionDuration:
+          (transitionDuration ?? match.route.transitionDuration),
       transition: match.route.transition,
       transition: match.route.transition,
       popGesture: match.route.popGesture,
       popGesture: match.route.popGesture,
       fullscreenDialog: match.route.fullscreenDialog,
       fullscreenDialog: match.route.fullscreenDialog,
@@ -161,7 +163,8 @@ class GetMaterialApp extends StatelessWidget {
         opaque: match.route.opaque,
         opaque: match.route.opaque,
         binding: match.route.binding,
         binding: match.route.binding,
         bindings: match.route.bindings,
         bindings: match.route.bindings,
-        duration: (transitionDuration ?? match.route.transitionDuration),
+        transitionDuration:
+            (transitionDuration ?? match.route.transitionDuration),
         transition: match.route.transition,
         transition: match.route.transition,
         popGesture: match.route.popGesture,
         popGesture: match.route.popGesture,
         fullscreenDialog: match.route.fullscreenDialog,
         fullscreenDialog: match.route.fullscreenDialog,

 abstract class Bindings {
 abstract class Bindings {
-  dependencies();
+  void dependencies();
 }
 }
 
 
 // abstract class INavigation {}
 // abstract class INavigation {}

@@ -5,42 +5,111 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/material.dart';
 import 'package:get/src/get_main.dart';
 import 'package:get/src/get_main.dart';
 import 'package:get/src/instance/get_instance.dart';
 import 'package:get/src/instance/get_instance.dart';
-import 'package:get/src/platform/platform.dart';
+import 'package:get/utils.dart';
 import 'bindings_interface.dart';
 import 'bindings_interface.dart';
 import 'custom_transition.dart';
 import 'custom_transition.dart';
-import 'transitions_filter.dart';
+import 'default_transitions.dart';
 import 'transitions_type.dart';
 import 'transitions_type.dart';
 
 
-class GetPageRoute<T> extends PageRouteBuilder<T> {
-  //final TransitionComponent transitionComponent;
-  final Duration duration;
-  final bool popGesture;
-  final Transition transition;
-  final Curve curve;
-  final Alignment alignment;
-  final GetPageBuilder page;
-  final CustomTransition customTransition;
-  final Bindings binding;
-  final Map<String, String> parameter;
-  final List<Bindings> bindings;
-
+class GetPageRoute<T> extends PageRoute<T> {
   GetPageRoute({
   GetPageRoute({
-    // this.transitionComponent,
     RouteSettings settings,
     RouteSettings settings,
-    this.duration,
-    this.transition,
-    this.binding,
-    @required this.page,
-    this.bindings,
+    this.transitionDuration = const Duration(milliseconds: 400),
     this.opaque = true,
     this.opaque = true,
     this.parameter,
     this.parameter,
+    this.curve,
     this.alignment,
     this.alignment,
-    this.fullscreenDialog = false,
-    this.curve = Curves.linear,
+    this.transition,
     this.popGesture,
     this.popGesture,
     this.customTransition,
     this.customTransition,
-  }) : super(
-          pageBuilder: (context, anim1, anim2) {
+    this.barrierDismissible = false,
+    this.barrierColor,
+    this.binding,
+    this.bindings,
+    this.page,
+    this.barrierLabel,
+    this.maintainState = true,
+    bool fullscreenDialog = false,
+  })  : assert(opaque != null),
+        assert(barrierDismissible != null),
+        assert(maintainState != null),
+        assert(fullscreenDialog != null),
+        super(settings: settings, fullscreenDialog: fullscreenDialog);
+
+  @override
+  final Duration transitionDuration;
+
+  final GetPageBuilder page;
+
+  final CustomTransition customTransition;
+
+  final Bindings binding;
+
+  final Map<String, String> parameter;
+
+  final List<Bindings> bindings;
+
+  @override
+  final bool opaque;
+
+  final bool popGesture;
+
+  @override
+  final bool barrierDismissible;
+
+  final Transition transition;
+
+  final Curve curve;
+
+  final Alignment alignment;
+
+  @override
+  final Color barrierColor;
+
+  @override
+  final String barrierLabel;
+
+  @override
+  final bool maintainState;
+
+  @override
+  bool canTransitionTo(TransitionRoute<dynamic> nextRoute) {
+    // Don't perform outgoing animation if the next route is a fullscreen dialog.
+    return nextRoute is PageRoute && !nextRoute.fullscreenDialog;
+  }
+
+  static bool _isPopGestureEnabled<T>(PageRoute<T> route) {
+    if (route.isFirst) return false;
+
+    if (route.willHandlePopInternally) return false;
+
+    if (route.hasScopedWillPopCallback) return false;
+
+    if (route.fullscreenDialog) return false;
+
+    if (route.animation.status != AnimationStatus.completed) return false;
+
+    if (route.secondaryAnimation.status != AnimationStatus.dismissed)
+      return false;
+
+    if (isPopGestureInProgress(route)) return false;
+
+    return true;
+  }
+
+  static _CupertinoBackGestureController<T> _startPopGesture<T>(
+      PageRoute<T> route) {
+    assert(_isPopGestureEnabled(route));
+
+    return _CupertinoBackGestureController<T>(
+      navigator: route.navigator,
+      controller: route.controller,
+    );
+  }
+
+  @override
+  Widget buildPage(BuildContext context, Animation<double> animation,
+      Animation<double> secondaryAnimation) {
     if (binding != null) {
     if (binding != null) {
       binding.dependencies();
       binding.dependencies();
     }
     }
@@ -51,15 +120,7 @@ class GetPageRoute<T> extends PageRouteBuilder<T> {
     }
     }
     GetConfig.currentRoute = settings.name;
     GetConfig.currentRoute = settings.name;
     return page();
     return page();
-          },
-          settings: settings,
-        );
-
-  @override
-  final bool opaque;
-
-  @override
-  final bool fullscreenDialog;
+  }
 
 
   static bool isPopGestureInProgress(PageRoute<dynamic> route) {
   static bool isPopGestureInProgress(PageRoute<dynamic> route) {
     return route.navigator.userGestureInProgress;
     return route.navigator.userGestureInProgress;
@@ -68,24 +129,14 @@ class GetPageRoute<T> extends PageRouteBuilder<T> {
   bool get popGestureInProgress => isPopGestureInProgress(this);
   bool get popGestureInProgress => isPopGestureInProgress(this);
 
 
   @override
   @override
-  bool canTransitionTo(TransitionRoute<dynamic> nextRoute) {
-    // Don't perform outgoing animation if the next route is a fullscreen dialog.
-    return nextRoute is GetPageRoute && !nextRoute.fullscreenDialog;
-  }
-
-  @override
   Widget buildTransitions(BuildContext context, Animation<double> animation,
   Widget buildTransitions(BuildContext context, Animation<double> animation,
       Animation<double> secondaryAnimation, Widget child) {
       Animation<double> secondaryAnimation, Widget child) {
-    if (fullscreenDialog != null &&
-        transition == null &&
-        customTransition == null) {
-      final bool linearTransition = isPopGestureInProgress(this);
+    if (fullscreenDialog && transition == null) {
       return CupertinoFullscreenDialogTransition(
       return CupertinoFullscreenDialogTransition(
           primaryRouteAnimation: animation,
           primaryRouteAnimation: animation,
           secondaryRouteAnimation: secondaryAnimation,
           secondaryRouteAnimation: secondaryAnimation,
           child: child,
           child: child,
-        linearTransition: linearTransition,
-      );
+          linearTransition: true);
     }
     }
 
 
     if (this.customTransition != null) {
     if (this.customTransition != null) {
@@ -102,14 +153,10 @@ class GetPageRoute<T> extends PageRouteBuilder<T> {
                   child: child)
                   child: child)
               : child);
               : child);
     }
     }
-    final curvedAnimation = CurvedAnimation(
-      parent: animation,
-      curve: this.curve ?? Curves.linear,
-    );
 
 
-    if (transition == null) {
-      if (Get.customTransition != null) {
-        return Get.customTransition.buildTransition(
+    switch (transition ?? Get.defaultTransition) {
+      case Transition.leftToRight:
+        return SlideLeftTransition().buildTransitions(
             context,
             context,
             curve,
             curve,
             alignment,
             alignment,
@@ -121,15 +168,13 @@ class GetPageRoute<T> extends PageRouteBuilder<T> {
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     child: child)
                     child: child)
                 : child);
                 : child);
-      }
 
 
-      if (Get.defaultTransition != null) {
-        return TransitionFilter.newTransitionComponent(Get.defaultTransition)
-            .buildChildWithTransition(
+      case Transition.downToUp:
+        return SlideDownTransition().buildTransitions(
             context,
             context,
             curve,
             curve,
             alignment,
             alignment,
-                curvedAnimation,
+            animation,
             secondaryAnimation,
             secondaryAnimation,
             popGesture ?? Get.defaultPopGesture
             popGesture ?? Get.defaultPopGesture
                 ? _CupertinoBackGestureDetector<T>(
                 ? _CupertinoBackGestureDetector<T>(
@@ -137,27 +182,27 @@ class GetPageRoute<T> extends PageRouteBuilder<T> {
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     child: child)
                     child: child)
                 : child);
                 : child);
-      }
 
 
-      return Theme.of(context).pageTransitionsTheme.buildTransitions(
-          this,
+      case Transition.upToDown:
+        return SlideTopTransition().buildTransitions(
             context,
             context,
+            curve,
+            alignment,
             animation,
             animation,
             secondaryAnimation,
             secondaryAnimation,
-          GetPlatform.isIOS
+            popGesture ?? Get.defaultPopGesture
                 ? _CupertinoBackGestureDetector<T>(
                 ? _CupertinoBackGestureDetector<T>(
                     enabledCallback: () => _isPopGestureEnabled<T>(this),
                     enabledCallback: () => _isPopGestureEnabled<T>(this),
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     child: child)
                     child: child)
                 : child);
                 : child);
-    }
 
 
-    return TransitionFilter.newTransitionComponent(transition)
-        .buildChildWithTransition(
+      case Transition.rightToLeft:
+        return SlideRightTransition().buildTransitions(
             context,
             context,
             curve,
             curve,
             alignment,
             alignment,
-            curvedAnimation,
+            animation,
             secondaryAnimation,
             secondaryAnimation,
             popGesture ?? Get.defaultPopGesture
             popGesture ?? Get.defaultPopGesture
                 ? _CupertinoBackGestureDetector<T>(
                 ? _CupertinoBackGestureDetector<T>(
@@ -165,39 +210,173 @@ class GetPageRoute<T> extends PageRouteBuilder<T> {
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     onStartPopGesture: () => _startPopGesture<T>(this),
                     child: child)
                     child: child)
                 : child);
                 : child);
-  }
 
 
-  @override
-  Duration get transitionDuration =>
-      this.duration ?? Duration(milliseconds: 400);
+      case Transition.zoom:
+        return ZoomInTransition().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-  static bool _isPopGestureEnabled<T>(PageRoute<T> route) {
-    if (route.isFirst) return false;
+      case Transition.fadeIn:
+        return FadeInTransition().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    if (route.willHandlePopInternally) return false;
+      case Transition.rightToLeftWithFade:
+        return RightToLeftFadeTransition().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    if (route.hasScopedWillPopCallback) return false;
+      case Transition.leftToRightWithFade:
+        return LeftToRightFadeTransition().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    if (route.fullscreenDialog) return false;
+      case Transition.cupertino:
+        return CupertinoTransitions().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    if (route.animation.status != AnimationStatus.completed) return false;
+      case Transition.size:
+        return SizeTransitions().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    if (route.secondaryAnimation.status != AnimationStatus.dismissed)
-      return false;
+      case Transition.fade:
+        return FadeUpwardsPageTransitionsBuilder().buildTransitions(
+            this,
+            context,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    if (isPopGestureInProgress(route)) return false;
+      case Transition.topLevel:
+        return ZoomPageTransitionsBuilder().buildTransitions(
+            this,
+            context,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    return true;
-  }
+      case Transition.native:
+        if (GetPlatform.isIOS)
+          return CupertinoTransitions().buildTransitions(
+              context,
+              curve,
+              alignment,
+              animation,
+              secondaryAnimation,
+              popGesture ?? Get.defaultPopGesture
+                  ? _CupertinoBackGestureDetector<T>(
+                      enabledCallback: () => _isPopGestureEnabled<T>(this),
+                      onStartPopGesture: () => _startPopGesture<T>(this),
+                      child: child)
+                  : child);
 
 
-  static _CupertinoBackGestureController<T> _startPopGesture<T>(
-      PageRoute<T> route) {
-    assert(_isPopGestureEnabled(route));
+        return FadeInTransition().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
 
 
-    return _CupertinoBackGestureController<T>(
-      navigator: route.navigator,
-      controller: route.controller,
-    );
+      default:
+        if (GetPlatform.isIOS)
+          return CupertinoTransitions().buildTransitions(
+              context,
+              curve,
+              alignment,
+              animation,
+              secondaryAnimation,
+              popGesture ?? Get.defaultPopGesture
+                  ? _CupertinoBackGestureDetector<T>(
+                      enabledCallback: () => _isPopGestureEnabled<T>(this),
+                      onStartPopGesture: () => _startPopGesture<T>(this),
+                      child: child)
+                  : child);
+
+        return FadeInTransition().buildTransitions(
+            context,
+            curve,
+            alignment,
+            animation,
+            secondaryAnimation,
+            popGesture ?? Get.defaultPopGesture
+                ? _CupertinoBackGestureDetector<T>(
+                    enabledCallback: () => _isPopGestureEnabled<T>(this),
+                    onStartPopGesture: () => _startPopGesture<T>(this),
+                    child: child)
+                : child);
+    }
   }
   }
 }
 }
 
 
@@ -410,655 +589,3 @@ class _CupertinoBackGestureController<T> {
     }
     }
   }
   }
 }
 }
-
-// import 'package:flutter/cupertino.dart';
-// import 'package:flutter/foundation.dart';
-// import 'package:flutter/gestures.dart';
-// import 'package:flutter/material.dart';
-// import 'package:get/src/get_main.dart';
-// import 'package:get/src/routes/bindings_interface.dart';
-
-// import '../platform/platform.dart';
-// import 'transitions_type.dart';
-
-// const double _kBackGestureWidth = 20.0;
-// const double _kMinFlingVelocity = 1.0;
-// const int _kMaxDroppedSwipePageForwardAnimationTime = 800; // Milliseconds.
-
-// // The maximum time for a page to get reset to it's original position if the
-// // user releases a page mid swipe.
-// const int _kMaxPageBackAnimationTime = 300;
-
-// class GetPageRoute<T> extends PageRoute<T> {
-//   /// The [builder], [maintainState], and [fullscreenDialog] arguments must not
-//   /// be null.
-//   GetPageRoute({
-//     @required this.page,
-//     this.title,
-//     RouteSettings settings,
-//     this.maintainState = true,
-//     this.curve = Curves.linear,
-//     this.alignment,
-//     this.parameter,
-//     this.binding,
-//     this.route,
-//     this.bindings,
-//     this.customBuildPageTransitions,
-//     this.opaque = true,
-//     this.transitionDuration = const Duration(milliseconds: 400),
-//     this.popGesture,
-//     this.transition,
-//     // this.duration = const Duration(milliseconds: 400),
-//     bool fullscreenDialog = false,
-//   })  : // assert(page != null),
-//         assert(maintainState != null),
-//         assert(fullscreenDialog != null),
-//         //  assert(opaque),
-//         super(settings: settings, fullscreenDialog: fullscreenDialog) {
-//     /// prebuild dependencies
-//     if (binding != null) {
-//       binding.dependencies();
-//     }
-//     if (bindings != null) {
-//       bindings.forEach((element) => element.dependencies());
-//     }
-//   }
-
-//   /// Builds the primary contents of the route.
-//   final Widget page;
-
-//   final GetPageBuilder route;
-
-//   final Widget customBuildPageTransitions;
-
-//   final bool popGesture;
-
-//   final Bindings binding;
-
-//   final List<Bindings> bindings;
-
-//   // final Duration duration;
-
-//   final Map<String, String> parameter;
-
-//   final String title;
-
-//   final Transition transition;
-
-//   final Curve curve;
-
-//   final Alignment alignment;
-
-//   ValueNotifier<String> _previousTitle;
-
-//   /// The title string of the previous [GetRoute].
-//   ///
-//   /// The [ValueListenable]'s value is readable after the route is installed
-//   /// onto a [Navigator]. The [ValueListenable] will also notify its listeners
-//   /// if the value changes (such as by replacing the previous route).
-//   ///
-//   /// The [ValueListenable] itself will be null before the route is installed.
-//   /// Its content value will be null if the previous route has no title or
-//   /// is not a [GetRoute].
-//   ///
-//   /// See also:
-//   ///
-//   ///  * [ValueListenableBuilder], which can be used to listen and rebuild
-//   ///    widgets based on a ValueListenable.
-//   ValueListenable<String> get previousTitle {
-//     assert(
-//       _previousTitle != null,
-//       'Cannot read the previousTitle for a route that has not yet been installed',
-//     );
-//     return _previousTitle;
-//   }
-
-//   @override
-//   void didChangePrevious(Route<dynamic> previousRoute) {
-//     final String previousTitleString =
-//         previousRoute is GetPageRoute ? previousRoute.title : null;
-//     if (_previousTitle == null) {
-//       _previousTitle = ValueNotifier<String>(previousTitleString);
-//     } else {
-//       _previousTitle.value = previousTitleString;
-//     }
-//     super.didChangePrevious(previousRoute);
-//   }
-
-//   @override
-//   final bool maintainState;
-
-//   /// Allows you to set opaque to false to prevent route reconstruction.
-//   @override
-//   final bool opaque;
-
-//   @override
-//   final Duration transitionDuration;
-
-//   @override
-//   Color get barrierColor => null; //Color(0x00FFFFFF);
-
-//   @override
-//   String get barrierLabel => null;
-
-//   @override
-//   bool canTransitionTo(TransitionRoute<dynamic> nextRoute) {
-//     // Don't perform outgoing animation if the next route is a fullscreen dialog.
-//     return nextRoute is GetPageRoute && !nextRoute.fullscreenDialog;
-//   }
-
-//   /// True if an iOS-style back swipe pop gesture is currently underway for [route].
-//   ///
-//   /// This just check the route's [NavigatorState.userGestureInProgress].
-//   ///
-//   /// See also:
-//   ///
-//   ///  * [popGestureEnabled], which returns true if a user-triggered pop gesture
-//   ///    would be allowed.
-//   static bool isPopGestureInProgress(PageRoute<dynamic> route) {
-//     return route.navigator.userGestureInProgress;
-//   }
-
-//   /// True if an iOS-style back swipe pop gesture is currently underway for this route.
-//   ///
-//   /// See also:
-//   ///
-//   ///  * [isPopGestureInProgress], which returns true if a Cupertino pop gesture
-//   ///    is currently underway for specific route.
-//   ///  * [popGestureEnabled], which returns true if a user-triggered pop gesture
-//   ///    would be allowed.
-//   bool get popGestureInProgress => isPopGestureInProgress(this);
-
-//   /// Whether a pop gesture can be started by the user.
-//   ///
-//   /// Returns true if the user can edge-swipe to a previous route.
-//   ///
-//   /// Returns false once [isPopGestureInProgress] is true, but
-//   /// [isPopGestureInProgress] can only become true if [popGestureEnabled] was
-//   /// true first.
-//   ///
-//   /// This should only be used between frames, not during build.
-//   bool get popGestureEnabled => _isPopGestureEnabled(this);
-
-//   static bool _isPopGestureEnabled<T>(PageRoute<T> route) {
-//     // If there's nothing to go back to, then obviously we don't support
-//     // the back gesture.
-//     if (route.isFirst) return false;
-//     // If the route wouldn't actually pop if we popped it, then the gesture
-//     // would be really confusing (or would skip internal routes), so disallow it.
-//     if (route.willHandlePopInternally) return false;
-//     // If attempts to dismiss this route might be vetoed such as in a page
-//     // with forms, then do not allow the user to dismiss the route with a swipe.
-//     if (route.hasScopedWillPopCallback) return false;
-//     // Fullscreen dialogs aren't dismissible by back swipe.
-//     if (route.fullscreenDialog) return false;
-//     // If we're in an animation already, we cannot be manually swiped.
-//     if (route.animation.status != AnimationStatus.completed) return false;
-//     // If we're being popped into, we also cannot be swiped until the pop above
-//     // it completes. This translates to our secondary animation being
-//     // dismissed.
-//     if (route.secondaryAnimation.status != AnimationStatus.dismissed)
-//       return false;
-//     // If we're in a gesture already, we cannot start another.
-//     if (isPopGestureInProgress(route)) return false;
-
-//     // Looks like a back gesture would be welcome!
-//     return true;
-//   }
-
-//   @override
-//   Widget buildPage(BuildContext context, Animation<double> animation,
-//       Animation<double> secondaryAnimation) {
-//     final Widget result = Semantics(
-//       scopesRoute: true,
-//       explicitChildNodes: true,
-//       child: (route == null ? page : route()),
-//     );
-//     assert(() {
-//       if (route == null && page == null) {
-//         throw FlutterError.fromParts(<DiagnosticsNode>[
-//           ErrorSummary(
-//               'The builder for route "${settings.name}" returned null.'),
-//           ErrorDescription('Route builders must never return null.'),
-//         ]);
-//       }
-//       return true;
-//     }());
-//     return result;
-//   }
-
-//   // Called by _CupertinoBackGestureDetector when a pop ("back") drag start
-//   // gesture is detected. The returned controller handles all of the subsequent
-//   // drag events.
-//   static _CupertinoBackGestureController<T> _startPopGesture<T>(
-//       PageRoute<T> route) {
-//     assert(_isPopGestureEnabled(route));
-
-//     return _CupertinoBackGestureController<T>(
-//       navigator: route.navigator,
-//       controller: route.controller, // protected access
-//     );
-//   }
-
-//   /// Returns a [CupertinoFullscreenDialogTransition] if [route] is a full
-//   /// screen dialog, otherwise a [CupertinoPageTransition] is returned.
-//   ///
-//   /// Used by [GetRoute.buildTransitions].
-//   ///
-//   /// This method can be applied to any [PageRoute], not just
-//   /// [GetRoute]. 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].
-//   Widget buildPageTransitions<T>(
-//     PageRoute<T> route,
-//     BuildContext context,
-//     bool popGesture,
-//     Animation<double> animation,
-//     Animation<double> secondaryAnimation,
-//     Widget child,
-//     Transition tr,
-//     Curve curve,
-//     Alignment alignment,
-//   ) {
-//     Transition transition = (tr ?? Get.defaultTransition);
-
-//     if (route.fullscreenDialog) {
-//       final bool linearTransition = isPopGestureInProgress(route);
-//       return CupertinoFullscreenDialogTransition(
-//         primaryRouteAnimation: animation,
-//         secondaryRouteAnimation: secondaryAnimation,
-//         child: child,
-//         linearTransition: linearTransition,
-//       );
-//     } else {
-//       switch (transition) {
-//         case Transition.fade:
-//           final PageTransitionsBuilder matchingBuilder =
-//               FadeUpwardsPageTransitionsBuilder();
-//           return matchingBuilder.buildTransitions<T>(
-//               route,
-//               context,
-//               animation,
-//               secondaryAnimation,
-//               popGesture
-//                   ? _CupertinoBackGestureDetector<T>(
-//                       enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                       onStartPopGesture: () => _startPopGesture<T>(route),
-//                       child: child)
-//                   : child);
-//           break;
-//         case Transition.rightToLeft:
-//           return SlideTransition(
-//             transformHitTests: false,
-//             position: new Tween<Offset>(
-//               begin: const Offset(1.0, 0.0),
-//               end: Offset.zero,
-//             ).animate(animation),
-//             child: new SlideTransition(
-//                 position: new Tween<Offset>(
-//                   begin: Offset.zero,
-//                   end: const Offset(-1.0, 0.0),
-//                 ).animate(secondaryAnimation),
-//                 child: popGesture
-//                     ? _CupertinoBackGestureDetector<T>(
-//                         enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                         onStartPopGesture: () => _startPopGesture<T>(route),
-//                         child: child)
-//                     : child),
-//           );
-//           break;
-//         case Transition.leftToRight:
-//           return SlideTransition(
-//             transformHitTests: false,
-//             position: Tween<Offset>(
-//               begin: const Offset(-1.0, 0.0),
-//               end: Offset.zero,
-//             ).animate(animation),
-//             child: new SlideTransition(
-//                 position: new Tween<Offset>(
-//                   begin: Offset.zero,
-//                   end: const Offset(1.0, 0.0),
-//                 ).animate(secondaryAnimation),
-//                 child: popGesture
-//                     ? _CupertinoBackGestureDetector<T>(
-//                         enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                         onStartPopGesture: () => _startPopGesture<T>(route),
-//                         child: child)
-//                     : child),
-//           );
-//           break;
-//         case Transition.upToDown:
-//           return SlideTransition(
-//             transformHitTests: false,
-//             position: Tween<Offset>(
-//               begin: const Offset(0.0, -1.0),
-//               end: Offset.zero,
-//             ).animate(animation),
-//             child: new SlideTransition(
-//                 position: new Tween<Offset>(
-//                   begin: Offset.zero,
-//                   end: const Offset(0.0, 1.0),
-//                 ).animate(secondaryAnimation),
-//                 child: popGesture
-//                     ? _CupertinoBackGestureDetector<T>(
-//                         enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                         onStartPopGesture: () => _startPopGesture<T>(route),
-//                         child: child)
-//                     : child),
-//           );
-//           break;
-//         case Transition.downToUp:
-//           return SlideTransition(
-//             transformHitTests: false,
-//             position: Tween<Offset>(
-//               begin: const Offset(0.0, 1.0),
-//               end: Offset.zero,
-//             ).animate(animation),
-//             child: new SlideTransition(
-//                 position: new Tween<Offset>(
-//                   begin: Offset.zero,
-//                   end: const Offset(0.0, -1.0),
-//                 ).animate(secondaryAnimation),
-//                 child: popGesture
-//                     ? _CupertinoBackGestureDetector<T>(
-//                         enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                         onStartPopGesture: () => _startPopGesture<T>(route),
-//                         child: child)
-//                     : child),
-//           );
-//           break;
-
-//         case Transition.rightToLeftWithFade:
-//           return SlideTransition(
-//             position: Tween<Offset>(
-//               begin: const Offset(1.0, 0.0),
-//               end: Offset.zero,
-//             ).animate(animation),
-//             child: FadeTransition(
-//               opacity: animation,
-//               child: SlideTransition(
-//                   position: Tween<Offset>(
-//                     begin: Offset.zero,
-//                     end: const Offset(-1.0, 0.0),
-//                   ).animate(secondaryAnimation),
-//                   child: popGesture
-//                       ? _CupertinoBackGestureDetector<T>(
-//                           enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                           onStartPopGesture: () => _startPopGesture<T>(route),
-//                           child: child)
-//                       : child),
-//             ),
-//           );
-//           break;
-//         case Transition.leftToRightWithFade:
-//           return SlideTransition(
-//             position: Tween<Offset>(
-//               begin: const Offset(-1.0, 0.0),
-//               end: Offset.zero,
-//             ).animate(animation),
-//             child: FadeTransition(
-//               opacity: animation,
-//               child: SlideTransition(
-//                   position: Tween<Offset>(
-//                     begin: Offset.zero,
-//                     end: const Offset(1.0, 0.0),
-//                   ).animate(secondaryAnimation),
-//                   child: popGesture
-//                       ? _CupertinoBackGestureDetector<T>(
-//                           enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                           onStartPopGesture: () => _startPopGesture<T>(route),
-//                           child: child)
-//                       : child),
-//             ),
-//           );
-//           break;
-
-//         default:
-//           return CupertinoPageTransition(
-//             primaryRouteAnimation: animation,
-//             secondaryRouteAnimation: secondaryAnimation,
-//             // 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.
-//             linearTransition: isPopGestureInProgress(route),
-//             child: popGesture
-//                 ? _CupertinoBackGestureDetector<T>(
-//                     enabledCallback: () => _isPopGestureEnabled<T>(route),
-//                     onStartPopGesture: () => _startPopGesture<T>(route),
-//                     child: child)
-//                 : child,
-//           );
-//       }
-//     }
-//   }
-
-//   @override
-//   Widget buildTransitions(BuildContext context, Animation<double> animation,
-//       Animation<double> secondaryAnimation, Widget child) {
-//     if (customBuildPageTransitions != null) {
-//       return customBuildPageTransitions;
-//     } else {
-//       return buildPageTransitions<T>(
-//           this,
-//           context,
-//           popGesture ?? GetPlatform.isIOS,
-//           animation,
-//           secondaryAnimation,
-//           child,
-//           transition,
-//           curve,
-//           alignment);
-//     }
-//   }
-
-//   @override
-//   String get debugLabel => '${super.debugLabel}(${settings.name})';
-// }
-
-// class _CupertinoBackGestureDetector<T> extends StatefulWidget {
-//   const _CupertinoBackGestureDetector({
-//     Key key,
-//     @required this.enabledCallback,
-//     @required this.onStartPopGesture,
-//     @required this.child,
-//   })  : assert(enabledCallback != null),
-//         assert(onStartPopGesture != null),
-//         assert(child != null),
-//         super(key: key);
-
-//   final Widget child;
-
-//   final ValueGetter<bool> enabledCallback;
-
-//   final ValueGetter<_CupertinoBackGestureController<T>> onStartPopGesture;
-
-//   @override
-//   _CupertinoBackGestureDetectorState<T> createState() =>
-//       _CupertinoBackGestureDetectorState<T>();
-// }
-
-// class _CupertinoBackGestureDetectorState<T>
-//     extends State<_CupertinoBackGestureDetector<T>> {
-//   _CupertinoBackGestureController<T> _backGestureController;
-
-//   HorizontalDragGestureRecognizer _recognizer;
-
-//   @override
-//   void initState() {
-//     super.initState();
-//     _recognizer = HorizontalDragGestureRecognizer(debugOwner: this)
-//       ..onStart = _handleDragStart
-//       ..onUpdate = _handleDragUpdate
-//       ..onEnd = _handleDragEnd
-//       ..onCancel = _handleDragCancel;
-//   }
-
-//   @override
-//   void dispose() {
-//     _recognizer.dispose();
-//     super.dispose();
-//   }
-
-//   void _handleDragStart(DragStartDetails details) {
-//     assert(mounted);
-//     assert(_backGestureController == null);
-//     _backGestureController = widget.onStartPopGesture();
-//   }
-
-//   void _handleDragUpdate(DragUpdateDetails details) {
-//     assert(mounted);
-//     assert(_backGestureController != null);
-//     _backGestureController.dragUpdate(
-//         _convertToLogical(details.primaryDelta / context.size.width));
-//   }
-
-//   void _handleDragEnd(DragEndDetails details) {
-//     assert(mounted);
-//     assert(_backGestureController != null);
-//     _backGestureController.dragEnd(_convertToLogical(
-//         details.velocity.pixelsPerSecond.dx / context.size.width));
-//     _backGestureController = null;
-//   }
-
-//   void _handleDragCancel() {
-//     assert(mounted);
-//     // This can be called even if start is not called, paired with the "down" event
-//     // that we don't consider here.
-//     _backGestureController?.dragEnd(0.0);
-//     _backGestureController = null;
-//   }
-
-//   void _handlePointerDown(PointerDownEvent event) {
-//     if (widget.enabledCallback()) _recognizer.addPointer(event);
-//   }
-
-//   double _convertToLogical(double value) {
-//     switch (Directionality.of(context)) {
-//       case TextDirection.rtl:
-//         return -value;
-//       case TextDirection.ltr:
-//         return value;
-//     }
-//     return null;
-//   }
-
-//   @override
-//   Widget build(BuildContext context) {
-//     assert(debugCheckHasDirectionality(context));
-//     // For devices with notches, the drag area needs to be larger on the side
-//     // that has the notch.
-//     double dragAreaWidth = Directionality.of(context) == TextDirection.ltr
-//         ? MediaQuery.of(context).padding.left
-//         : MediaQuery.of(context).padding.right;
-//     dragAreaWidth = max(dragAreaWidth, _kBackGestureWidth);
-//     return Stack(
-//       fit: StackFit.passthrough,
-//       children: <Widget>[
-//         widget.child,
-//         PositionedDirectional(
-//           start: 0.0,
-//           width: dragAreaWidth,
-//           top: 0.0,
-//           bottom: 0.0,
-//           child: Listener(
-//             onPointerDown: _handlePointerDown,
-//             behavior: HitTestBehavior.translucent,
-//           ),
-//         ),
-//       ],
-//     );
-//   }
-// }
-
-// class _CupertinoBackGestureController<T> {
-//   /// Creates a controller for an iOS-style back gesture.
-//   ///
-//   /// The [navigator] and [controller] arguments must not be null.
-//   _CupertinoBackGestureController({
-//     @required this.navigator,
-//     @required this.controller,
-//   })  : assert(navigator != null),
-//         assert(controller != null) {
-//     navigator.didStartUserGesture();
-//   }
-
-//   final AnimationController controller;
-//   final NavigatorState navigator;
-
-//   /// The drag gesture has changed by [fractionalDelta]. The total range of the
-//   /// drag should be 0.0 to 1.0.
-//   void dragUpdate(double delta) {
-//     controller.value -= delta;
-//   }
-
-//   /// The drag gesture has ended with a horizontal motion of
-//   /// [fractionalVelocity] as a fraction of screen width per second.
-//   void dragEnd(double velocity) {
-//     // Fling in the appropriate direction.
-//     // AnimationController.fling is guaranteed to
-//     // take at least one frame.
-//     //
-//     // This curve has been determined through rigorously eyeballing native iOS
-//     // animations.
-//     const Curve animationCurve = Curves.fastLinearToSlowEaseIn;
-//     bool animateForward;
-
-//     // If the user releases the page before mid screen with sufficient velocity,
-//     // or after mid screen, we should animate the page out. Otherwise, the page
-//     // should be animated back in.
-//     if (velocity.abs() >= _kMinFlingVelocity)
-//       animateForward = velocity <= 0;
-//     else
-//       animateForward = controller.value > 0.5;
-
-//     if (animateForward) {
-//       // The closer the panel is to dismissing, the shorter the animation is.
-//       // We want to cap the animation time, but we want to use a linear curve
-//       // to determine it.
-//       final int droppedPageForwardAnimationTime = min(
-//         lerpDouble(
-//                 _kMaxDroppedSwipePageForwardAnimationTime, 0, controller.value)
-//             .floor(),
-//         _kMaxPageBackAnimationTime,
-//       );
-//       controller.animateTo(1.0,
-//           duration: Duration(milliseconds: droppedPageForwardAnimationTime),
-//           curve: animationCurve);
-//     } else {
-//       // This route is destined to pop at this point. Reuse navigator's pop.
-//       navigator.pop();
-
-//       // The popping may have finished inline if already at the target destination.
-//       if (controller.isAnimating) {
-//         // Otherwise, use a custom popping animation duration and curve.
-//         final int droppedPageBackAnimationTime = lerpDouble(
-//                 0, _kMaxDroppedSwipePageForwardAnimationTime, controller.value)
-//             .floor();
-//         controller.animateBack(0.0,
-//             duration: Duration(milliseconds: droppedPageBackAnimationTime),
-//             curve: animationCurve);
-//       }
-//     }
-
-//     if (controller.isAnimating) {
-//       // Keep the userGestureInProgress in true state so we don't change the
-//       // curve of the page transition mid-flight since CupertinoPageTransition
-//       // depends on userGestureInProgress.
-//       AnimationStatusListener animationStatusCallback;
-//       animationStatusCallback = (AnimationStatus status) {
-//         navigator.didStopUserGesture();
-//         controller.removeStatusListener(animationStatusCallback);
-//       };
-//       controller.addStatusListener(animationStatusCallback);
-//     } else {
-//       navigator.didStopUserGesture();
-//     }
-//   }
-// }

 import 'package:flutter/cupertino.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/material.dart';
-import 'transitions_component.dart';
 
 
-class LeftToRightFadeTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class LeftToRightFadeTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -29,9 +27,8 @@ class LeftToRightFadeTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class RightToLeftFadeTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class RightToLeftFadeTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -56,9 +53,8 @@ class RightToLeftFadeTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class NoTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class NoTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -69,9 +65,8 @@ class NoTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class FadeInTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class FadeInTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -82,9 +77,8 @@ class FadeInTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class SlideDownTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class SlideDownTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -101,9 +95,8 @@ class SlideDownTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class SlideLeftTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class SlideLeftTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -120,9 +113,8 @@ class SlideLeftTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class SlideRightTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class SlideRightTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -139,9 +131,8 @@ class SlideRightTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class SlideTopTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class SlideTopTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -158,9 +149,8 @@ class SlideTopTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class ZoomInTransition extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class ZoomInTransition {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -174,9 +164,8 @@ class ZoomInTransition extends TransitionComponent {
   }
   }
 }
 }
 
 
-class SizeTransitions extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class SizeTransitions {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,
@@ -196,9 +185,8 @@ class SizeTransitions extends TransitionComponent {
   }
   }
 }
 }
 
 
-class CupertinoTransitions extends TransitionComponent {
-  @override
-  Widget buildChildWithTransition(
+class CupertinoTransitions {
+  Widget buildTransitions(
       BuildContext context,
       BuildContext context,
       Curve curve,
       Curve curve,
       Alignment alignment,
       Alignment alignment,

@@ -10,6 +10,7 @@ enum Transition {
   rightToLeftWithFade,
   rightToLeftWithFade,
   leftToRightWithFade,
   leftToRightWithFade,
   zoom,
   zoom,
+  topLevel,
   noTransition,
   noTransition,
   cupertino,
   cupertino,
   cupertinoDialog,
   cupertinoDialog,

@@ -100,6 +100,16 @@ class GetImplXState<T extends DisposableInterface> extends State<GetX<T>> {
     final observer = getObs;
     final observer = getObs;
     getObs = _observer;
     getObs = _observer;
     final result = widget.builder(controller);
     final result = widget.builder(controller);
+    if (!_observer.canUpdate) {
+      throw """
+      [Get] the improper use of a GetX has been detected. 
+      You should only use GetX or Obx for the specific widget that will be updated.
+      If you are seeing this error, you probably did not insert any observable variables into GetX/Obx 
+      or insert them outside the scope that GetX considers suitable for an update 
+      (example: GetX => HeavyWidget => variableObservable).
+      If you need to update a parent widget and a child widget, wrap each one in an Obx/GetX.
+      """;
+    }
     getObs = observer;
     getObs = observer;
     return result;
     return result;
   }
   }

@@ -15,6 +15,10 @@ class _RxImpl<T> implements RxInterface<T> {
     return _value;
     return _value;
   }
   }
 
 
+  bool get canUpdate {
+    return _subscriptions.length > 0;
+  }
+
   T call([T v]) {
   T call([T v]) {
     if (v != null) {
     if (v != null) {
       this.value = v;
       this.value = v;
@@ -84,6 +88,10 @@ class RxMap<K, V> extends RxInterface implements Map<K, V> {
 
 
   String get string => value.toString();
   String get string => value.toString();
 
 
+  bool get canUpdate {
+    return _subscriptions.length > 0;
+  }
+
   @override
   @override
   void close() {
   void close() {
     _subscriptions.forEach((observable, subscription) {
     _subscriptions.forEach((observable, subscription) {
@@ -250,6 +258,10 @@ class RxList<E> extends Iterable<E> implements RxInterface<E> {
   @override
   @override
   bool get isEmpty => value.isEmpty;
   bool get isEmpty => value.isEmpty;
 
 
+  bool get canUpdate {
+    return _subscriptions.length > 0;
+  }
+
   @override
   @override
   bool get isNotEmpty => value.isNotEmpty;
   bool get isNotEmpty => value.isNotEmpty;
 
 
@@ -419,8 +431,6 @@ RxInterface getObs;
 
 
 typedef bool Condition();
 typedef bool Condition();
 
 
-typedef E ChildrenListComposer<S, E>(S value);
-
 class RxBool extends _RxImpl<bool> {
 class RxBool extends _RxImpl<bool> {
   RxBool([bool initial]) {
   RxBool([bool initial]) {
     _value = initial;
     _value = initial;

@@ -8,6 +8,8 @@ abstract class RxInterface<T> {
   /// add listener to stream
   /// add listener to stream
   addListener(Stream<T> rxGetx);
   addListener(Stream<T> rxGetx);
 
 
+  bool get canUpdate;
+
   /// close stream
   /// close stream
   close() {
   close() {
     subject?.close();
     subject?.close();
@@ -15,14 +17,8 @@ abstract class RxInterface<T> {
 
 
   StreamController<T> subject;
   StreamController<T> subject;
 
 
-  /// Convert value on string
-  // String get string;
-
   /// Calls [callback] with current value, when the value changes.
   /// Calls [callback] with current value, when the value changes.
   StreamSubscription<T> listen(ValueCallback<T> callback);
   StreamSubscription<T> listen(ValueCallback<T> callback);
-
-  /// Maps the changes into a [Stream] of [S]
-  // Stream<S> map<S>(S mapper(T data));
 }
 }
 
 
 abstract class DisposableInterface {
 abstract class DisposableInterface {

@@ -54,6 +54,16 @@ class _ObxState extends State<Obx> {
     final observer = getObs;
     final observer = getObs;
     getObs = _observer;
     getObs = _observer;
     final result = widget.builder();
     final result = widget.builder();
+    if (!_observer.canUpdate) {
+      throw """
+      [Get] the improper use of a GetX has been detected. 
+      You should only use GetX or Obx for the specific widget that will be updated.
+      If you are seeing this error, you probably did not insert any observable variables into GetX/Obx 
+      or insert them outside the scope that GetX considers suitable for an update 
+      (example: GetX => HeavyWidget => variableObservable).
+      If you need to update a parent widget and a child widget, wrap each one in an Obx/GetX.
+      """;
+    }
     getObs = observer;
     getObs = observer;
     return result;
     return result;
   }
   }

 name: get
 name: get
 description: Open screens/snackbars/dialogs/bottomSheets without context, manage states and inject dependencies easily with Get.
 description: Open screens/snackbars/dialogs/bottomSheets without context, manage states and inject dependencies easily with Get.
-version: 3.2.1
+version: 3.2.2
 homepage: https://github.com/jonataslaw/get
 homepage: https://github.com/jonataslaw/get
 
 
 environment:
 environment: