摘要： 【bundle之principal class】 In particular, every Cocoa loadable bundle contains aprincipal class. The code loading mechanism provided by the NSBundle class uses a bundle’s principal class as an entry point. Applications loading bundles can ask NSBundle to find the principal class and use the returnedC. 阅读全文

摘要： 【iOS之Framework】　1、Aframeworkis a hierarchical directory that encapsulates a dynamic shared library and the resource files needed to support that library. framework，所包含的必然是一个dylib。　2、Accounts.framework实例: 可以看到，大多数framework都是一个dylib+headers。所以在osx/ios中，通常没有单独的dylib存在（一个没有给出导出符号的dylib，对大数用户来说都没用），每... 阅读全文