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IOS4: Fix SDK settings and deployment targets in Xcode

I upgraded my Xcode from version 3.1.2 to version Xcode 3.2.3 and upgraded my device to 4.0 OS. I installed the base SDK on iPhone Device OS 4.0 and deployed the iPhone OS for iPhone OS 3.1.2.

When I launch my application (which was created in 3.1.2) on a device running iOS4.0, and I see problems, such as dates that do not appear, and back buttons that do not appear in the navigation bar. The application works great when it is in sections 3.1.2 and 3.2.

What can cause problems in iOS4.0? Are the SDL and Deployment options configured correctly?

Edit:

I solved the problem with the date and return button.

Thank.

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3 answers

Deployment settings look correct.

Do you use any third-party library in your application? What back buttons do you use, are they configured?

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You are probably the right settings. The NSDateFormatter class has become less lenient in iOS4, and -[NSDateFormatter dateFromString:]will return zero in more cases if it encounters a problem.

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Source: https://habr.com/ru/post/1751875/

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