Bunch of fixes

analysis_options.yaml

@@ -0,0 +1,14 @@
+# Defines a default set of lint rules enforced for
+# projects at Google. For details and rationale,
+# see https://github.com/dart-lang/pedantic#enabled-lints.
+include: package:pedantic/analysis_options.yaml
+
+# For lint rules and documentation, see http://dart-lang.github.io/linter/lints.
+# Uncomment to specify additional rules.
+# linter:
+#   rules:
+#     - camel_case_types
+
+analyzer:
+  strong-mode:
+    implicit-casts: false

example/lib/main.dart

@@ -143,7 +143,7 @@ class _MyHomePageState extends State<MyHomePage> {
         true
       ]
     }''';
-    jsonObj = jsonDecode(testString);
+    jsonObj = jsonDecode(testString) as Map<String, dynamic>;
   }
 
   @override
@@ -167,7 +167,7 @@ class _MyHomePageState extends State<MyHomePage> {
             child: SingleChildScrollView(
                 // Center is a layout widget. It takes a single child and positions it
                 // in the middle of the parent.
-                child: JsonViewerWidget(jsonObj)
+                child: JsonViewerWidget(jsonObj, false)
             ),
           );
         }