基本完成

lib/config/app_context.dart

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+import 'package:flutter/material.dart';
+
+class AppContext {
+  static late BuildContext _context;
+
+  AppContext._();
+
+  ///私有构造函数，防止外部实例化
+  static void setContent(BuildContext context) {
+    _context = context;
+  }
+
+  ///获取全局上下文
+  static BuildContext get context => _context;
+
+  ///获取主题
+  static TextTheme get textTheme => Theme.of(_context).textTheme;
+
+  static ColorScheme get colorScheme => Theme.of(_context).colorScheme;
+
+  ///页面内间距
+  static double get pagePadding => 15;
+}

lib/config/env.dart

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+///环境配置
+class Config {
+  Config._();
+
+  ///获取环境
+  static String getEnv() {
+    const env = String.fromEnvironment('ENV', defaultValue: 'dev');
+    return env;
+  }
+
+  ///获取接口地址
+  static String baseUrl() {
+    if (getEnv() == 'dev') {
+      return 'https://food-api.curain.ai/api';
+    } else {
+      return 'https://food-api.curain.ai/api';
+    }
+  }
+}

lib/config/theme/custom_colors.dart

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+import 'package:flutter/material.dart';
+
+///扩展颜色
+extension CustomColors on ColorScheme {
+  Color get success => const Color(0xff57be80);
+
+  Color get warning => const Color(0xffff9800);
+
+  Color get info => const Color(0xff909399);
+
+  Color get danger => const Color(0xfff44545);
+
+  Color get primaryEnd => const Color(0xff06b6d4);
+}

lib/config/theme/theme.dart

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+import 'package:flutter/material.dart';
+
+///颜色
+final scheme = ColorScheme.fromSeed(
+  primary: Color(0xff3784f1),
+  seedColor: Color(0xff3885f2),
+  brightness: Brightness.light,
+  //卡片色
+  surface: Colors.white,
+  surfaceContainerLow: Color(0xFFF4F8FB),
+  surfaceContainer: Color(0xFFE9ECF3),
+  surfaceContainerHigh: Color(0xFFDDE2EA),
+  //颜色
+  onSurfaceVariant: Color(0xFF828282),
+
+  shadow: Color.fromRGBO(0, 0, 0, 0.1),
+);
+
+///字体
+final textTheme = TextTheme(
+  titleLarge: TextStyle(fontSize: 24, fontWeight: FontWeight.w700, color: scheme.onSurface),
+  titleMedium: TextStyle(fontSize: 20, fontWeight: FontWeight.w700, color: scheme.onSurface),
+  titleSmall: TextStyle(fontSize: 16, fontWeight: FontWeight.w700, color: scheme.onSurface),
+  bodyLarge: TextStyle(fontSize: 18),
+  bodyMedium: TextStyle(fontSize: 16),
+  bodySmall: TextStyle(fontSize: 14),
+  labelLarge: TextStyle(fontSize: 16, color: scheme.onSurfaceVariant),
+  labelMedium: TextStyle(fontSize: 14, color: scheme.onSurfaceVariant),
+  labelSmall: TextStyle(fontSize: 12, color: scheme.onSurfaceVariant),
+);