first commit

moehu/moehu_fontend/lib/utils/Core.dart

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+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+/*
+ * 核心的utils，主要封装UI相关的操作
+ */
+class Core {
+  //修改状态栏颜色
+  static void barColor(Color color) {
+    SystemUiOverlayStyle uiStyle = SystemUiOverlayStyle.light.copyWith(
+      statusBarColor: color,
+    );
+    SystemChrome.setSystemUIOverlayStyle(uiStyle);
+  }
+
+  /// 复制文字到剪切板
+  static void copy(String message) {
+    Clipboard.setData(ClipboardData(text: message));
+  }
+}