官方文档

https://www.material.io/ MD
https://developer.apple.com/design/human-interface-guidelines/ Apple Human Interface Guidelines
https://ant.design/index-cn 蚂蚁金服团队

碎碎念

dp sp px 的爱恨情仇
https://www.ui.cn/detail/162029.html

https://www.jianshu.com/p/1b406a643ad2 iOS与Android移动端设计对比

https://www.ui.cn/detail/192444.html 一稿完美适配Android/iOS及无线视觉规范
http://www.shejidaren.com/examples/tools/chichun/ui-design-spec.html Android & iOS设计尺寸规范

资源

http://www.niudana.com/ NIUDANA设计导航
http://so.uigreat.com/ UI设计导航
https://idesign.qq.com/#!index/feed 腾讯CDC导航 有RSS订阅
http://hao.shejidaren.com/ 设计导航
https://hao.uisdc.com/ 优设设计导航
http://www.46design.com/ 46设计导航