Create static library in Xcode 4

I can't figure out how to create a cocoa touch static library in Xcode 4.

I've created static library in Xcode 3 and it worked fine. I used this tutorial. Thanks for the help.

First step I create cocoa touch static library

Next we can see our static library in product directory. But now this uncompiled library.

Next step I add some objective-c class. This class is will perform various actions, for example show NSLog messages.

Then I made sure there is this class exist in compile source

After that I build my target

Now I use this static library in other projects, but wh开发者_如何转开发en I use it I get a error when linking files with my static library.

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Open Xcode > Create New Project > iOS > Framework & Library > Cocoa Touch Static Library

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I struggled with this myself and, on another SO thread, found this:

iOS-Universal-Framework

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To create an static library you can try to figure out with example example here: http://www.raywenderlich.com/41377/creating-a-static-library-in-ios-tutorial