feat：测试harmony

lib/api/proxy.dart

@@ -46,7 +46,7 @@ setProxyWidget(context) {
             padding: const EdgeInsets.only(left: 15.0, right: 15.0),
             color: Colors.white,
             margin: const EdgeInsets.only(top: 1.0),
-            child: const Row(
+            child:  Row(
               children: <Widget>[
                 Expanded(
                   child: Text("设置代理", style: TextStyle(fontSize: 15.0)),

lib/widget/state_layout.dart

@@ -34,7 +34,7 @@ class _StateLayoutState extends State<StateLayout> {
   }
 
   Widget _loadingWidget() {
-    return const Column(
+    return Column(
       crossAxisAlignment: CrossAxisAlignment.center,
       mainAxisAlignment: MainAxisAlignment.center,
       children: [