refa image preview

Signed-off-by: dom <githubaccount56556@proton.me>

lib/common/widgets/image_viewer/hero_dialog_route.dart

@@ -0,0 +1,59 @@
+import 'package:flutter/material.dart';
+
+/// https://github.com/qq326646683/interactiveviewer_gallery
+
+/// A [PageRoute] with a semi transparent background.
+///
+/// Similar to calling [showDialog] except it can be used with a [Navigator] to
+/// show a [Hero] animation.
+class HeroDialogRoute<T> extends PageRoute<T> {
+  HeroDialogRoute({
+    required this.pageBuilder,
+  });
+
+  final RoutePageBuilder pageBuilder;
+
+  @override
+  bool get opaque => false;
+
+  @override
+  bool get barrierDismissible => true;
+
+  @override
+  String? get barrierLabel => null;
+
+  @override
+  Duration get transitionDuration => const Duration(milliseconds: 300);
+
+  @override
+  bool get maintainState => true;
+
+  @override
+  Color? get barrierColor => null;
+
+  @override
+  Widget buildTransitions(
+    BuildContext context,
+    Animation<double> animation,
+    Animation<double> secondaryAnimation,
+    Widget child,
+  ) {
+    return FadeTransition(
+      opacity: animation.drive(CurveTween(curve: Curves.easeOut)),
+      child: child,
+    );
+  }
+
+  @override
+  Widget buildPage(
+    BuildContext context,
+    Animation<double> animation,
+    Animation<double> secondaryAnimation,
+  ) {
+    return Semantics(
+      scopesRoute: true,
+      explicitChildNodes: true,
+      child: pageBuilder(context, animation, secondaryAnimation),
+    );
+  }
+}