Add:创建 flutter go web 版

lib/widgets/components/Chip/ChipThemeData/demo.dart

@@ -0,0 +1,37 @@
+/// @Author: xiaojia.dxj
+/// @Date: 2018-12-18 15:14:10 
+/// @Last Modified by: xiaojia.dxj
+/// @Last Modified time: 2018-12-18 19:39:41
+ 
+import 'package:flutter_web/material.dart';
+
+class ChipThemeDemo extends StatefulWidget {
+  _ChipThemeDemoState createState() => _ChipThemeDemoState();
+}
+
+class _ChipThemeDemoState extends State<ChipThemeDemo> {
+  Color _color = Colors.red;
+
+  @override
+  Widget build(BuildContext context) {
+    return ChipTheme(
+      data: ChipThemeData.fromDefaults(
+        // brightness: Brightness.dark,
+      labelStyle: TextStyle(fontSize: 15.0), 
+      primaryColor: Colors.red,secondaryColor: Colors.red.shade800),
+      child: ChoiceChip(
+        padding: EdgeInsets.only(left: 100.0,right: 100.0,top: 10.0,bottom: 10.0),
+        label: Text('down'),
+        onSelected: (bool value) {
+          setState(() {
+            _color = value ? Colors.black : Colors.red;
+          });
+        },
+        selected: _color == Colors.black,
+      ),
+    );
+  }
+}
+
+
+