问题
I have seen some people who refuse to use Interface Builder and prefer to make everything using code. Isn't this a bit tedious and doesn't it take longer? Why would people do that?
回答1:
This is usually a holdover from working in other environments with other UI builders. A lot of UI builder programs are viewed as newbie hand-holding at best and outright harmful at worst. Interface Builder is unusual in that it's actually the preferred way to create interfaces for the platform.
回答2:
Some people don't like mixing code functionality in interface designs. Another example is when flash devs would include lots of code snippets directly in the stage (fla files), rather than in separate .as files. With xib it's not as big of a problem, since they are xml and can be merged quite easily when using source control. I personally like using xib's because we have a team of devs and designers -- splitting up the work load is nice. The designers can easily port their photoshop/fireworks designs into xibs and we can focus on the functionality.
回答3:
Sometimes you want to do something that the UI builder can't quite handle (these situations aren't common, but they do come up now and then). Sometimes you may feel you have better control over what's happening when you write the code yourself. Me, I prefer to let the UI builders do it as much as possible, but sometimes it doesn't always work that nicely, and I sometimes have had to write the code myself.
回答4:
Possibly because the Interface Builder is another tool to understand. Also, it's useful to know how to do things programmatically in case nibs don't give you enough functionality.
来源：https://stackoverflow.com/questions/3773571/why-not-use-interface-builder