摘要： Fromcomp.lang.objective-C FAQ listing: "What if multiple categories implement the same method?Then the fabric of the Universe as we know it ceases to ... 阅读全文

摘要： 多线程 阅读全文

摘要： 在面向对象程序里，一个对象不要直接访问另一个对象内部的数据。所以我们使用accessor methods来进行对象内部的数据交互。accessor methods(getters and setters) are used as an abstraction for interacting with... 阅读全文

摘要： 里面的复用cell会不会混在一起呢？ 阅读全文

摘要： 1 使用block 可以轻松地绑定各处代码块，使用delete 结构是分散的，不利于变量之间传值，不像block可以随意地获取变量值。2.使用block可以方便执行异步代码，作为异步处理回调。In terms of code readability, the block makes it easy ... 阅读全文

摘要： the breakpoint will always be skipped. Your breakpoint condition can be any code that evaluatestrueorfalse. For example, if you only want the breakpoi... 阅读全文

摘要： storyboard迭代比较快You’ll get more valuable feedback if you can put together a fleshed-out prototype that runs on a device. When people can interact with ... 阅读全文

摘要： 点击图标大小至少为这么大：Make it easy for people to interact with content and controls by giving each interactive element ample spacing.Give tappable controls a h... 阅读全文

摘要： 1.AFNetworking地址：https://github.com/AFNetworking/AFNetworking用于网络请求2.JSONKit地址：https://github.com/johnezang/JSONKit解析JSON3.Reachability地址：https://gith... 阅读全文

摘要： isKindOfClass:returns YES if the receiver is an instance of the specified class or an instance of any class that inherits from the specified class.isM... 阅读全文