提交：提交代码；

lib/widget/state_layout.dart

@@ -64,8 +64,6 @@ class _StateLayoutState extends State<StateLayout> {
       children: <Widget>[
         Offstage(
           offstage: img.isEmpty,
-          child: Opacity(
-            opacity: 1,
           child: Container(
             height: 120.0,
             width: 120.0,
@@ -76,7 +74,6 @@ class _StateLayoutState extends State<StateLayout> {
             ),
           ),
         ),
-        ),
         const SizedBox(
           height: 16.0,
         ),