Flutter 125: 图解自传 ACE_ICON.ttf 图标库

    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；

（福利推荐：阿里云、腾讯云、华为云服务器最新限时优惠活动，云服务器1核2G仅88元/年、2核4G仅698元/3年，点击这里立即抢购>>>）

• https://www.fluttericon.com/
• https://www.iconfont.cn/

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

• 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); }

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)));

4. 异常注意

    小菜在测试过程中，会显示如下图所示，Icon 资源展示不出来，其原因是小菜在 pubspec.yaml 文件声明时换行空格导致的，注意在引入所有资源库文件时，都应严格遵守 pubspec.yaml 声明格式；

    ACE_ICON.ttf 案例源码

    小菜此次仅是对于日常资源库和命令行的简单应用，熟能生巧，仅限于日常积累；如有错误，请多多指导！

来源： 阿策小和尚

你还在原价购买阿里云、腾讯云、华为云、天翼云产品？那就亏大啦！现在申请成为四大品牌云厂商VIP用户，可以3折优惠价购买云服务器等云产品，并且可享四大云服务商产品终身VIP优惠价，还等什么？赶紧点击下面对应链接免费申请VIP客户吧：

1、点击这里立即申请成为腾讯云VIP客户

2、点击这里立即注册成为天翼云VIP客户

3、点击这里立即申请成为华为云VIP客户

4、点击这里立享阿里云产品终身VIP优惠价

喜欢 (0)赏

[[email protected]]

分享 (0)