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iOS

Posted by Pavel Palancica
Pavel Palancica
6,535 Points

I have a question about iOS core data

Hey guys,

I am working on a project and I want to use the Core Data framework. I am using Xcode 4.6 and iOS SDK 6.1. However, I want to make my project iOS 4.3 backward compatible.

When I want to add the Core Data framework, it appears under an iOS SDK 6.1 folder/section.

My question is:

Should it work the way am doing it, or I have to change the SDK of the project to 4.3?

Thanks in advance

6 Answers

Amit Bijlani
STAFF
Amit Bijlani
Treehouse Guest Teacher
Amit Bijlani
Amit Bijlani
Treehouse Guest Teacher

@Pavel You have to set your target to 4.3. Since Core Data has been available since 3.x and above you should be fine. What you should be worried about is using features that were not available in 4.3. Deploy mate can help you with that.

Pavel Palancica
Pavel Palancica
6,535 Points
Pavel Palancica
Pavel Palancica
6,535 Points

Thanks Amit,

I actually changed the Deployment Target in the Project->Info section and in Targets->Summary section.

But in the Navigator, under the Project's blue button, it still says iOS 6.1.

Should it go ok, or I still have to make any other change?

Thanks

Amit Bijlani
STAFF
Amit Bijlani
Treehouse Guest Teacher
Amit Bijlani
Amit Bijlani
Treehouse Guest Teacher

That should be fine because you are building with iOS 6.1. You could download the 4.3 simulator to test. Go to preferences -> Downloads -> Components and there you can install simulators for older versions of iOS.

Pavel Palancica
Pavel Palancica
6,535 Points
Pavel Palancica
Pavel Palancica
6,535 Points

I'm on Mountain Lion, and iOS 4.3 Simulator seems to not appear in that section for installing.

http://stackoverflow.com/questions/12511191/xcode-4-5-runs-ios-4-0-simulator-not

Do you know any other solutions?

Thanks a lot

Amit Bijlani
STAFF
Amit Bijlani
Treehouse Guest Teacher
Amit Bijlani
Amit Bijlani
Treehouse Guest Teacher

Sorry, no idea. Although I would question why you want such backward compatibility. According to this article it seems like most devices use iOS version 5 and above.

Pavel Palancica
Pavel Palancica
6,535 Points
Pavel Palancica
Pavel Palancica
6,535 Points

Thanks a lot, Amit.

I have to discuss with the client, maybe we can just ignore the small fraction of users that use iOS 4.3 :)