Initial commit: Flutter 无书应用项目
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253
lib/utils/app_theme.dart
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253
lib/utils/app_theme.dart
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import 'package:flutter/material.dart';
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import '../constants/app_constants.dart';
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class AppTheme {
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static ThemeData get lightTheme {
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return ThemeData(
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useMaterial3: true,
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colorScheme: ColorScheme.fromSeed(
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seedColor: AppConstants.primaryColor,
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brightness: Brightness.light,
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primary: AppConstants.primaryColor,
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secondary: AppConstants.secondaryColor,
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surface: AppConstants.surfaceColor,
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error: AppConstants.errorColor,
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),
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// AppBar 主题
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appBarTheme: const AppBarTheme(
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backgroundColor: AppConstants.primaryColor,
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foregroundColor: Colors.white,
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elevation: 0,
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centerTitle: true,
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titleTextStyle: TextStyle(
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color: Colors.white,
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fontSize: 18,
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fontWeight: FontWeight.w500,
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),
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iconTheme: IconThemeData(color: Colors.white),
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),
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// 按钮主题
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elevatedButtonTheme: ElevatedButtonThemeData(
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style: ElevatedButton.styleFrom(
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backgroundColor: AppConstants.primaryColor,
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foregroundColor: Colors.white,
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elevation: 2,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
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padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
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),
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),
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textButtonTheme: TextButtonThemeData(
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style: TextButton.styleFrom(
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foregroundColor: AppConstants.primaryColor,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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),
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),
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outlinedButtonTheme: OutlinedButtonThemeData(
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style: OutlinedButton.styleFrom(
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foregroundColor: AppConstants.primaryColor,
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side: const BorderSide(color: AppConstants.primaryColor),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
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padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
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),
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),
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// 卡片主题
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cardTheme: CardThemeData(
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elevation: 2,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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color: AppConstants.surfaceColor,
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),
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// 输入框主题
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inputDecorationTheme: InputDecorationTheme(
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: const BorderSide(color: Colors.grey),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: const BorderSide(
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color: AppConstants.primaryColor,
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width: 2,
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),
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),
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errorBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: const BorderSide(color: AppConstants.errorColor),
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),
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filled: true,
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fillColor: Colors.grey[50],
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contentPadding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 12,
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),
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),
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// 浮动按钮主题
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floatingActionButtonTheme: const FloatingActionButtonThemeData(
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backgroundColor: AppConstants.primaryColor,
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foregroundColor: Colors.white,
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elevation: 4,
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),
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// 底部导航栏主题
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bottomNavigationBarTheme: const BottomNavigationBarThemeData(
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backgroundColor: AppConstants.surfaceColor,
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selectedItemColor: AppConstants.primaryColor,
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unselectedItemColor: Colors.grey,
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type: BottomNavigationBarType.fixed,
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elevation: 8,
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),
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// 图标主题
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iconTheme: const IconThemeData(
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color: AppConstants.primaryColor,
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size: 24,
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),
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// 文本主题
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textTheme: const TextTheme(
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displayLarge: TextStyle(
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fontSize: 32,
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fontWeight: FontWeight.bold,
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color: Colors.black87,
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),
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displayMedium: TextStyle(
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fontSize: 28,
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fontWeight: FontWeight.bold,
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color: Colors.black87,
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),
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displaySmall: TextStyle(
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fontSize: 24,
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fontWeight: FontWeight.bold,
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color: Colors.black87,
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),
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headlineLarge: TextStyle(
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fontSize: 22,
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fontWeight: FontWeight.w600,
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color: Colors.black87,
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),
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headlineMedium: TextStyle(
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fontSize: 20,
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fontWeight: FontWeight.w600,
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color: Colors.black87,
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),
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headlineSmall: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.w600,
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color: Colors.black87,
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),
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titleLarge: TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.w500,
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color: Colors.black87,
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),
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titleMedium: TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.w500,
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color: Colors.black87,
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),
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titleSmall: TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w500,
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color: Colors.black87,
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),
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bodyLarge: TextStyle(
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fontSize: 16,
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fontWeight: FontWeight.normal,
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color: Colors.black87,
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),
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bodyMedium: TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.normal,
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color: Colors.black87,
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),
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bodySmall: TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.normal,
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color: Colors.black54,
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),
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labelLarge: TextStyle(
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fontSize: 14,
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fontWeight: FontWeight.w500,
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color: Colors.black87,
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),
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labelMedium: TextStyle(
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fontSize: 12,
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fontWeight: FontWeight.w500,
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color: Colors.black87,
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),
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labelSmall: TextStyle(
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fontSize: 10,
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fontWeight: FontWeight.w500,
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color: Colors.black54,
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),
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),
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);
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}
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static ThemeData get darkTheme {
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return ThemeData(
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useMaterial3: true,
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colorScheme: ColorScheme.fromSeed(
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seedColor: AppConstants.primaryColor,
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brightness: Brightness.dark,
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primary: AppConstants.primaryColor,
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secondary: AppConstants.secondaryColor,
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surface: const Color(0xFF1E1E1E),
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error: AppConstants.errorColor,
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),
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// AppBar 主题
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appBarTheme: const AppBarTheme(
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backgroundColor: Color(0xFF1E1E1E),
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foregroundColor: Colors.white,
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elevation: 0,
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centerTitle: true,
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titleTextStyle: TextStyle(
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color: Colors.white,
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fontSize: 18,
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fontWeight: FontWeight.w500,
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),
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iconTheme: IconThemeData(color: Colors.white),
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),
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// 卡片主题
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cardTheme: CardThemeData(
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elevation: 2,
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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color: const Color(0xFF1E1E1E),
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),
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// 输入框主题
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inputDecorationTheme: InputDecorationTheme(
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: BorderSide(color: Colors.grey[600]!),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: const BorderSide(
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color: AppConstants.primaryColor,
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width: 2,
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),
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),
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errorBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: const BorderSide(color: AppConstants.errorColor),
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),
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filled: true,
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fillColor: const Color(0xFF2A2A2A),
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contentPadding: const EdgeInsets.symmetric(
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horizontal: 16,
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vertical: 12,
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),
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),
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);
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}
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}
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