本文是我翻译的苹果官方文档<Core Text Overview> Core Text框架是高级的底层文字布局和处理字体的技术.它在Mac OS X v10.5 and iOS 3.2开始被引入,因此可以在iOS和OS X上使用Core Text. 重要提示:Core Text是被设计来帮助解决开发者需要底层处理文字布局和字体的技术,比如提供开发者布局引擎.如果可能的话,开发者应尽量在iOS中使用Text Kit (Text Kit使用教程)或者在OS X中使用Cocoa text Syste
http://ivomynttinen.com/blog/the-ios-7-design-cheat-sheet/ With the release of iOS 7, app designers and developers will need to adjust their visual language to match the new "flat" design of iOS. In addition to the grid system, the dimensions of
With the release of iOS 7, app designers and developers will need to adjust their visual language to match the new "flat" design of iOS. In addition to the grid system, the dimensions of icons and commonly used elements, typography and iconograp
MySQL 表中行的最大大小为 65,534(实际行存储从第二个字节开始)字节.每个 BLOB 和 TEXT 列只占其中的 5 至 9 个字节. 那么来验证下 varchar 类型的实际最大长度: 测试环境:MySQL版本 5.7.19 //首先要设置下 mysql 为严格执行模式,不然 varchar 超出最大长度为自动转为 text 类型 set sql_mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION&
Learn to write components that render differently on iOS and Android, but present the same API. First, we'll use the Platform module to change behavior based on the platform. Then, we'll use the platform-specific file extensions, .ios.js and .android