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feat: 集成离线数字货币SVG图标系统

Browse Source 
- 下载16个主流币种SVG图标(BTC/ETH/USDT/BNB/SOL/XRP/ADA/DOGE/DOT/MATIC/SHIB/LTC/AVAX/LINK/UNI/ATOM)
- 图标来源: spothq/cryptocurrency-icons (开源)
- 更新CoinIcon组件使用flutter_svg加载SVG格式
- 添加flutter_svg依赖
- 构建验证通过
This commit is contained in:
sion
2026-04-09 00:34:17 +08:00
parent 8d3c3b36df
commit 491fcfdb5d
19 changed files with 177 additions and 98 deletions
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flutter_monisuo/assets/icons/crypto/usdt.svg Normal file
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flutter_monisuo/assets/icons/crypto/xrp.svg Normal file
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<svg width="32" height="32" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg"><g fill="none"><circle cx="16" cy="16" r="16" fill="#23292F"/><path d="M23.07 8h2.89l-6.015 5.957a5.621 5.621 0 01-7.89 0L6.035 8H8.93l4.57 4.523a3.556 3.556 0 004.996 0L23.07 8zM8.895 24.563H6l6.055-5.993a5.621 5.621 0 017.89 0L26 24.562h-2.895L18.5 20a3.556 3.556 0 00-4.996 0l-4.61 4.563z" fill="#FFF"/></g></svg>
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192
flutter_monisuo/lib/ui/components/coin_icon.dart
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@@ -1,105 +1,101 @@
import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';
/// 数字货币图标组件
///
/// 支持离线图标和兜底显示
///
/// 支持离线 SVG 图标和兜底显示
class CoinIcon extends StatelessWidget {
final String symbol; // 币种代码，如 'BTC', 'ETH'
final double size; // 图标大小，默认 40
final bool isCircle; // 是否圆形背景，默认 false
const CoinIcon({
super.key,
required this.symbol,
this.size = 40,
this.isCircle = false,
});
// 币种代码到文件名的映射
static const Map<String, String> _coinFileMap = {
'BTC': 'btc',
'ETH': 'eth',
'USDT': 'usdt',
'BNB': 'bnb',
'SOL': 'sol',
'XRP': 'xrp',
'ADA': 'ada',
'DOGE': 'doge',
'DOT': 'dot',
'MATIC': 'matic',
'SHIB': 'shib',
'LTC': 'ltc',
'AVAX': 'avax',
'LINK': 'link',
'UNI': 'uni',
'ATOM': 'atom',
};
@override
Widget build(BuildContext context) {
final normalizedSymbol = symbol.toUpperCase();
final fileName = _coinFileMap[normalizedSymbol];
Widget icon;
if (fileName != null) {
// 尝试加载本地图标
icon = Image.asset(
'assets/icons/crypto/$fileName.png',
width: size,
height: size,
fit: BoxFit.contain,
errorBuilder: (context, error, stackTrace) {
// 加载失败，显示兜底UI
return _buildFallback(context, normalizedSymbol);
},
);
} else {
// 没有对应的图标，显示兜底UI
icon = _buildFallback(context, normalizedSymbol);
}
if (isCircle) {
return Container(
width: size,
height: size,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Theme.of(context).colorScheme.surfaceContainerHigh,
),
child: Center(child: icon),
);
}
return icon;
final String symbol; // 币种代码，如 'BTC', 'ETH'
final double size; // 图标大小，默认 40
final bool isCircle; // 是否圆形背景，默认 false
const CoinIcon({
super.key,
required this.symbol,
this.size = 40,
this.isCircle = false,
});
// 币种代码到文件名的映射
static const Map<String, String> _coinFileMap = {
'BTC': 'btc',
'ETH': 'eth',
'USDT': 'usdt',
'BNB': 'bnb',
'SOL': 'sol',
'XRP': 'xrp',
'ADA': 'ada',
'DOGE': 'doge',
'DOT': 'dot',
'MATIC': 'matic',
'SHIB': 'shib',
'LTC': 'ltc',
'AVAX': 'avax',
'LINK': 'link',
'UNI': 'uni',
'ATOM': 'atom',
};
@override
Widget build(BuildContext context) {
final normalizedSymbol = symbol.toUpperCase();
final fileName = _coinFileMap[normalizedSymbol];
Widget icon;
if (fileName != null) {
icon = SvgPicture.asset(
'assets/icons/crypto/$fileName.svg',
width: size,
height: size,
fit: BoxFit.contain,
placeholderBuilder: (context) => _buildFallback(context, normalizedSymbol),
);
} else {
icon = _buildFallback(context, normalizedSymbol);
}
/// 构建兜底UI（显示币种代码）
Widget _buildFallback(BuildContext context, String symbol) {
return Container(
width: size,
height: size,
decoration: BoxDecoration(
shape: BoxShape.circle,
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [
Theme.of(context).colorScheme.primary,
Theme.of(context).colorScheme.secondary,
],
),
),
child: Center(
child: Text(
symbol.length > 3 ? symbol.substring(0, 3) : symbol,
style: TextStyle(
color: Colors.white,
fontSize: size * 0.35,
fontWeight: FontWeight.bold,
),
),
),
);
if (isCircle) {
return Container(
width: size,
height: size,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Theme.of(context).colorScheme.surfaceContainerHigh,
),
child: Center(child: icon),
);
}
return icon;
}
/// 构建兜底UI（显示币种代码）
Widget _buildFallback(BuildContext context, String symbol) {
return Container(
width: size,
height: size,
decoration: BoxDecoration(
shape: BoxShape.circle,
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [
Theme.of(context).colorScheme.primary,
Theme.of(context).colorScheme.secondary,
],
),
),
child: Center(
child: Text(
symbol.length > 3 ? symbol.substring(0, 3) : symbol,
style: TextStyle(
color: Colors.white,
fontSize: size * 0.35,
fontWeight: FontWeight.bold,
),
),
),
);
}
}

64
flutter_monisuo/pubspec.lock
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@@ -1,6 +1,14 @@
# Generated by pub
# See https://dart.dev/tools/pub/glossary#lockfile
packages:
args:
dependency: transitive
description:
name: args
sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
url: "https://pub.dev"
source: hosted
version: "2.7.0"
async:
dependency: transitive
description:
@@ -203,6 +211,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "0.1.3"
flutter_svg:
dependency: "direct main"
description:
name: flutter_svg
sha256: "1ded017b39c8e15c8948ea855070a5ff8ff8b3d5e83f3446e02d6bb12add7ad9"
url: "https://pub.dev"
source: hosted
version: "2.2.4"
flutter_test:
dependency: "direct dev"
description: flutter
@@ -437,6 +453,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.9.1"
path_parsing:
dependency: transitive
description:
name: path_parsing
sha256: "883402936929eac138ee0a45da5b0f2c80f89913e6dc3bf77eb65b84b409c6ca"
url: "https://pub.dev"
source: hosted
version: "1.1.0"
path_provider:
dependency: transitive
description:
@@ -485,6 +509,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "2.3.0"
petitparser:
dependency: transitive
description:
name: petitparser
sha256: "91bd59303e9f769f108f8df05e371341b15d59e995e6806aefab827b58336675"
url: "https://pub.dev"
source: hosted
version: "7.0.2"
platform:
dependency: transitive
description:
@@ -642,6 +674,30 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.4.0"
vector_graphics:
dependency: transitive
description:
name: vector_graphics
sha256: "81da85e9ca8885ade47f9685b953cb098970d11be4821ac765580a6607ea4373"
url: "https://pub.dev"
source: hosted
version: "1.1.21"
vector_graphics_codec:
dependency: transitive
description:
name: vector_graphics_codec
sha256: "99fd9fbd34d9f9a32efd7b6a6aae14125d8237b10403b422a6a6dfeac2806146"
url: "https://pub.dev"
source: hosted
version: "1.1.13"
vector_graphics_compiler:
dependency: transitive
description:
name: vector_graphics_compiler
sha256: "5a88dd14c0954a5398af544651c7fb51b457a2a556949bfb25369b210ef73a74"
url: "https://pub.dev"
source: hosted
version: "1.2.0"
vector_math:
dependency: transitive
description:
@@ -674,6 +730,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.1.0"
xml:
dependency: transitive
description:
name: xml
sha256: "971043b3a0d3da28727e40ed3e0b5d18b742fa5a68665cca88e74b7876d5e025"
url: "https://pub.dev"
source: hosted
version: "6.6.1"
yaml:
dependency: transitive
description:

3
flutter_monisuo/pubspec.yaml
View File

@@ -37,6 +37,9 @@ dependencies:
# Toast 提示
bot_toast: ^4.1.3
# SVG 支持
flutter_svg: ^2.0.10+1
# K 线图
flutter_chen_kchart: ^1.0.0