【Flutter 专题】125 图解自传 ACE_ICON.ttf 图标库

阿策小和尚

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发布于: 2021 年 05 月 29 日

小菜在学习过程中通常会需要大量的小图标，而多数的 Icon 都是经过设计同学优化过的，而如何采用类似系统 Icons 方式，此时可以通过自传类似字体库的 ttf 图标库的方式来完成；

ACE_ICON

小菜推荐两个网站可以用来生成图标库；

1. 生成 ACE_ICON.ttf 图标库

小菜以 https://www.fluttericon.com/ 为例来生成图标库；在这个图标库中有很多成套的图标，在这里可以选中需要的图标，也可以将本地生成的 .svg 文件拖拽进库中；

其中设置完图标库名称后，通过工具选择下载不同的文件，包括 ttf 图标库、config 配置文件以及 mapping 映射文件；

2. 集成 ttf 图标库

将 ACE_ICON.ttf 库文件添加到 project 资源文件中；

在 pubspec.yaml 文件中声明 ACE_ICON.tt 文件库；声明方式与字体库等一致，注意 family 与 font 名称一致；在此可以声明引入多个资源库文件；之后 pub get 即可；

fonts:  - family: DancingScript    fonts:      - asset: assets/DancingScript-Regular.ttf  - family: ACE_ICON    fonts:      - asset: images/ACE_ICON.ttf

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将 mapping 文件添加到 project 中，用于映射 ACE_ICON 图标库中各 Icons 文件；

class ACE_ICON {  ACE_ICON._();
  static const _kFontFam = 'ACE_ICON';  static const String _kFontPkg = null;
  static const IconData emo_happy = IconData(0xe800, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_wink = IconData(0xe801, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_unhappy = IconData(0xe802, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_sleep = IconData(0xe803, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_thumbsup = IconData(0xe804, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_devil = IconData(0xe805, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_surprised = IconData(0xe806, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_tongue = IconData(0xe807, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_coffee = IconData(0xe808, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_sunglasses = IconData(0xe809, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_displeased = IconData(0xe80a, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_beer = IconData(0xe80b, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_grin = IconData(0xe80c, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_angry = IconData(0xe80d, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_saint = IconData(0xe80e, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_cry = IconData(0xe80f, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_shoot = IconData(0xe810, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_squint = IconData(0xe811, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_laugh = IconData(0xe812, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData emo_wink2 = IconData(0xe813, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData book_story = IconData(0xe814, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData book_type = IconData(0xe815, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData book_user = IconData(0xe816, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData crown = IconData(0xe844, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData crown_plus = IconData(0xe845, fontFamily: _kFontFam, fontPackage: _kFontPkg);  static const IconData crown_minus = IconData(0xe846, fontFamily: _kFontFam, fontPackage: _kFontPkg);}

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3. 图标库 IconData

集成之后，使用方式与默认的 Icon 一致，直接获取 IconData 即可，对于 Icon 的颜色尺寸等其他绘制也不会有影响；

List aceIconData = [  ACE_ICON.book_story, ACE_ICON.book_type, ACE_ICON.book_user, ACE_ICON.crown,  ACE_ICON.crown_minus, ACE_ICON.crown_plus, ACE_ICON.emo_angry, ACE_ICON.emo_beer,  ACE_ICON.emo_coffee, ACE_ICON.emo_cry, ACE_ICON.emo_devil, ACE_ICON.emo_displeased,  ACE_ICON.emo_grin, ACE_ICON.emo_happy, ACE_ICON.emo_laugh, ACE_ICON.emo_saint,  ACE_ICON.emo_shoot, ACE_ICON.emo_sleep, ACE_ICON.emo_squint, ACE_ICON.emo_sunglasses,  ACE_ICON.emo_surprised, ACE_ICON.emo_thumbsup, ACE_ICON.emo_tongue,   ACE_ICON.emo_unhappy, ACE_ICON.emo_wink, ACE_ICON.emo_wink2];
return SliverPadding(    padding: const EdgeInsets.all(8.0),    sliver: SliverGrid(        gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(            crossAxisCount: 6, mainAxisSpacing: 8.0, crossAxisSpacing: 8.0, childAspectRatio: 1.0),        delegate: SliverChildBuilderDelegate(            (context, index) => Container(                decoration: BoxDecoration(color: Colors.grey.withOpacity(0.2), borderRadius: BorderRadius.circular(3.0)),                child: Center(child: Icon(dataList[index], color: Colors.blue.withOpacity(0.6)))),            childCount: dataList.length)));