Can enlarge conversation images

lib/utils/ui_utils.dart

@@ -1,3 +1,4 @@
+import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 
 /// User interface utilities
@@ -9,7 +10,6 @@ Widget buildCenteredProgressBar() {
   );
 }
 
-
 /// Build and return a full loading page
 Widget buildLoadingPage() {
   return Scaffold(
@@ -48,3 +48,15 @@ Widget buildErrorCard(String message, {List<Widget> actions}) {
     ),
   );
 }
+
+/// Show an image with a given [url] in full screen
+void showImageFullScreen(BuildContext context, String url) {
+  Navigator.of(context).push(MaterialPageRoute(builder: (c) {
+
+    // TODO : add better support later
+    return CachedNetworkImage(
+      imageUrl: url,
+    );
+
+  }));
+}