初步优化项目结构

lib/widget_system/widgets/StatelessWidget/ButtonBar/node2_padding.dart

@@ -0,0 +1,38 @@
+
+import 'package:flutter/material.dart';
+import '../../../../components/project/dialogs/dialog_about.dart';
+
+/// create by 张风捷特烈 on 2020-03-25
+/// contact me by email 1981462002@qq.com
+/// 说明:
+//    {
+//      "widgetId": 29,
+//      "priority": 2,
+//      "name": "ButtonBar边距和高",
+//      "subtitle": "【buttonPadding】: 内边距   【EdgeInsetsGeometry】\n"
+//          "【buttonHeight】: 高   【double】",
+//    }
+class PaddingButtonBar extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return ButtonBar(
+      alignment: MainAxisAlignment.center,
+      buttonHeight: 40,
+      buttonPadding: EdgeInsets.only(left: 15,right: 15),
+      children: <Widget>[
+        RaisedButton(
+            color: Colors.blue,
+            child: Text("Raised"),
+            onPressed: () => DialogAbout.show(context)),
+        OutlineButton(
+            child: Text("Outline"),
+            onPressed: () => DialogAbout.show(context)),
+        FlatButton(
+          color: Colors.blue,
+          onPressed: () => DialogAbout.show(context),
+          child: Text("Flat"),
+        )
+      ],
+    );
+  }
+}