✨ 更新flutter unit mac版本

lib/views/widgets/StatelessWidget/MaterialBanner/node2_two_btn.dart

@@ -0,0 +1,60 @@
+import 'package:flutter/material.dart';
+
+/// create by 张风捷特烈 on 2020/7/21
+/// contact me by email 1981462002@qq.com
+/// 说明:
+//    {
+//      "widgetId": 211,
+//      "name": 'MaterialBanner两行的使用',
+//      "priority": 2,
+//      "subtitle": "【contentTextStyle】: 中间位置样式   【TextStyle】\n"
+//          "【leadingPadding】: 左侧组件边距    【EdgeInsetsGeometry】\n"
+//          "当尾部组件数量大于1,该组件结构为左中下。",
+//    }
+class MaterialBannerDemoTwo extends StatelessWidget {
+  final info =
+      'A banner displays an important, succinct message, and provides actions for users to address. '
+      'A user action is required for itto be dismissed.';
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: <Widget>[MaterialBanner(
+        content: Text(
+          info,
+          style: TextStyle(color: Colors.white),
+        ),
+        backgroundColor: Colors.purple,
+        leading: Icon(Icons.warning, color: Colors.yellow),
+        padding: EdgeInsetsDirectional.only(start: 16.0, top: 2.0,end: 2),
+        leadingPadding:EdgeInsetsDirectional.only(end: 16.0) ,
+        actions: <Widget>[
+          RaisedButton(
+            color: Colors.white,
+            onPressed: () {},
+            child: Text(
+              'I KNOW',
+              style: TextStyle(
+                  color: Colors.purple,
+                  fontWeight: FontWeight.bold,
+                  fontSize: 14),
+            ),
+          ),
+
+          RaisedButton(
+            color: Colors.white,
+            onPressed: () {},
+            child: Text(
+              'I IGNORE',
+              style: TextStyle(
+                  color: Colors.purple,
+                  fontWeight: FontWeight.bold,
+                  fontSize: 14),
+            ),
+          ),
+        ],
+      )],
+    );
+  }
+
+}