修改选择器样式

lib/pages/mh_page/EmptyMessageWidget.dart

@@ -0,0 +1,37 @@
+import 'dart:async';
+
+import 'package:ef/ef.dart';
+import 'package:flutter/material.dart';
+import 'package:vbvs_app/common/util/FitTool.dart';
+
+class EmptyMessageWidget extends StatelessWidget {
+  final String imagePath;
+  final double width;
+  final double height;
+  var empty = "".obs;
+
+  EmptyMessageWidget({
+    Key? key,
+    this.imagePath = 'assets/images/new_empty.png', // 默认图片路径
+    double? width, // 默认宽度
+    double? height, // 默认高度
+  })  : width = 164.rpx, // 初始化宽度
+        height = 230.rpx, // 初始化高度变为原来的三分之二
+        super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    Timer(Duration(milliseconds: 5000), () {
+      empty.value = "assets/images/new_empty.png";
+    });
+    return Center(
+      child: Image.asset(
+        imagePath,
+        width: width,
+        height: height,
+        color: Colors.white,
+      ),
+
+    );
+  }
+}