摘要：Android app项目中，res是用来存放资源文件的，来看看这些文件的创建和选取规则：系统启动一个apk后，生成UI的过程中，会根据不同的系统配置来匹配、选择相应的资源文件。You should also provide alternative resources for specific device configurations, by grouping them in specially-named resource directories. At runtime, Android uses the appropriate resource based on the current 阅读全文