Use a class ios5 can run in less than ios5 devices do

1. Use the NSJSONSerialization, specify deployment target of 4.3 simulator running no problem

2. Use a storyboard, specify the deployment target is 4.3, xcode's error: Storyboards are unavailable on iOS 4.3 and prior.
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No problem, just look at how you use

Plus a version of the distinction between the function NS_AVAILABLE (10_7, 5_0) marked points out that ah
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No, you are below the system ios5 devices are not supported in the storyboard, of course, impossible, unless distinguish below ios5 write another set to achieve compatible
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NSJSONSerialization
This version of the device in the low definitely impossible, storyboard I'm not sure
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The reply was deleted at 2011-11-30 14:55:27 moderator