86 lines
2.8 KiB
Dart
86 lines
2.8 KiB
Dart
import 'package:flutter/material.dart';
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class AppTheme {
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// 基础色值定义
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static const Color _pureWhite = Color(0xFFFFFFFF);
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static const Color _offWhite = Color(0xFFfafafc); // 稍微带点灰的白，用于背景增加层次感
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static const Color _pureBlack = Color(0xFF000000);
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static const Color _darkGrey = Color(0xFF1C1C1E); // iOS 风格的深灰黑色
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static ThemeData get lightTheme {
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return ThemeData(
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useMaterial3: true,
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brightness: Brightness.light,
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// 1. 整体背景色
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scaffoldBackgroundColor: _offWhite,
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// 2. 核心颜色方案
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colorScheme: const ColorScheme.light(
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primary: _pureBlack, // 主色设为黑色
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onPrimary: _pureWhite, // 黑色背景上的文字设为白色
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surface: _pureWhite, // 卡片、弹窗等表面颜色
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onSurface: _pureBlack, // 表面上的文字色
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background: _offWhite,
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),
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// 3. 全局按钮主题
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elevatedButtonTheme: ElevatedButtonThemeData(
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style: ElevatedButton.styleFrom(
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backgroundColor: _pureBlack,
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foregroundColor: _pureWhite,
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elevation: 0,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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padding: const EdgeInsets.symmetric(vertical: 16, horizontal: 24),
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),
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),
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// 4. 填充按钮主题 (常用语 Material 3)
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filledButtonTheme: FilledButtonThemeData(
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style: FilledButton.styleFrom(
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backgroundColor: _pureBlack,
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foregroundColor: _pureWhite,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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),
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),
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// 5. AppBar 主题 (纯白背景，黑色文字)
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appBarTheme: const AppBarTheme(
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backgroundColor: _pureWhite,
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surfaceTintColor: Colors.transparent,
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elevation: 0,
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centerTitle: true,
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iconTheme: IconThemeData(color: _pureBlack),
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titleTextStyle: TextStyle(
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color: _pureBlack,
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fontSize: 18,
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fontWeight: FontWeight.w700,
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letterSpacing: -0.5,
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),
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),
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// 6. 输入框主题 (黑白简约)
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inputDecorationTheme: InputDecorationTheme(
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filled: true,
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fillColor: _pureWhite,
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(12),
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borderSide: const BorderSide(color: Colors.black12),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(12),
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borderSide: const BorderSide(color: Colors.black12),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(12),
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borderSide: const BorderSide(color: _pureBlack, width: 1.5),
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),
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),
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);
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}
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}
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