初步优化项目结构

lib/widget_system/widgets/ProxyWidget/SliderTheme/node1_base.dart

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+import 'package:flutter/material.dart';
+
+/// create by 张风捷特烈 on 2020-04-12
+/// contact me by email 1981462002@qq.com
+/// 说明:
+
+//    {
+//      "widgetId": 331,
+//      "name": 'SliderTheme使用',
+//      "priority": 1,
+//      "subtitle":
+//          "可通过SliderTheme.of获取Slider主题数据对象，其中包含大量属性用于对Slider的设定。"
+//          "可以为ButtonTheme【后代】的按钮组件设置默认样式，包括颜色、形状、尺寸等。",
+//    }
+
+class SliderThemeDemo extends StatefulWidget {
+  @override
+  _SliderThemeDemoState createState() => _SliderThemeDemoState();
+}
+
+class _SliderThemeDemoState extends State<SliderThemeDemo> {
+  var _bliss = 0.5;
+
+  @override
+  Widget build(BuildContext context) {
+    return SliderTheme(
+      data: SliderTheme.of(context).copyWith(activeTrackColor: Colors.orange),
+      child: Slider(
+        min: 0.0,
+        max: 200.0,
+        divisions: 10,
+        label: "${_bliss.toStringAsFixed(1)}",
+        onChanged: (double value) {
+          setState(() {
+            _bliss = value;
+          });
+        },
+        value: _bliss,
+      ),
+    );
+  }
+}