随笔分类 -  Programming with Objective-C

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《Programming with Objective-C》
摘要：苹果官方文档：不稳定的传送门读书笔记共有以下几篇，其他的知识点不重要或者已经熟悉不需记录《Programming with Objective-C》第三章 Working with Objects《Programming with Objective-C》第四章 Encapsulating Data... 阅读全文
posted @ 2015-10-27 17:58 Norcy 阅读(440) 评论(0) 推荐(0)
《Programming with Objective-C》第八章 Working with Blocks
摘要：Blocks are Objective-C objects, which means they can be added to collections like NSArray or NSDictionary.Block语法——无参数版本定义（Block的值）^{ NSLog(@"This ... 阅读全文
posted @ 2015-10-27 17:24 Norcy 阅读(290) 评论(0) 推荐(0)
《Programming with Objective-C》第三章 Working with Objects
摘要：Object和普通变量的区别If you’re used to using terms like the stack and the heap, a local variable is allocated on the stack, while objects are allocated on th... 阅读全文
posted @ 2015-10-27 13:34 Norcy 阅读(327) 评论(0) 推荐(0)
《Programming with Objective-C》第四章 Encapsulating Data
摘要：Designated Initializer不稳定的传送门合成属性Properties don’t always have to be backed by their own instance variables.As an example, theXYZPersonclass might defi... 阅读全文
posted @ 2015-10-26 22:00 Norcy 阅读(358) 评论(0) 推荐(0)
《Programming with Objective-C》第五章 Customizing Existing Classes
摘要：1.分类里面只新增函数，不要新增变量；虽然新增是语法合法的，但是编译器并不会为你的property合成相应的成员变量、setter和getterCategories can be used to declare either instance methods or class methods but... 阅读全文
posted @ 2015-10-26 20:21 Norcy 阅读(223) 评论(0) 推荐(0)
《Programming with Objective-C》第七章 Values and Collections
摘要：1.平台相关的数据类型These types, likeNSIntegerandNSUInteger, are defined differently depending on the target architecture. When building for a 32-bit environme... 阅读全文
posted @ 2015-10-14 22:28 Norcy 阅读(330) 评论(0) 推荐(0)
Designated Initializer
摘要：一个类，可能有很多初始化函数，但是有主次之分，最主要的初始函数应该对类内应当需要初始化的变量进行初始化。这个最主要的初始函数即Designated Initializer（指定初始化器），可以理解为是类的默认初始函数。比如，UIView的Designated Initializer是initWith 阅读全文
posted @ 2015-10-11 23:33 Norcy 阅读(710) 评论(0) 推荐(0)