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How to Write an iOS App That Uses a Web Service

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1

A tutorial on how to write an iOS App that uses a web service. Comes with a companion tutorial showing you how to make the web service itself!

This is a companion discussion topic for the original entry at https://www.raywenderlich.com/3088-how-to-write-an-ios-app-that-uses-a-web-service
2

Hi,

Thanks for the resource, but if I download the project or build it in Xcode 7 iOS 9.1 it has heaps of errors. Also it uses libz.1.2.3.dylib which I think it supposes to be replaced with libz.1.2.5.tbd.

Unsupported compiler ‘com.apple.compilers.llvmgcc42’ selected for architecture ‘i386’
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/PromoTest/main.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/PromoTest/PromoTestAppDelegate.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/PromoTest/PromoTestViewController.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/NSObject+JSON.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonParser.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonStreamParser.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonStreamParserAdapter.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonStreamParserState.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonStreamWriter.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonStreamWriterState.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonTokeniser.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/SBJsonWriter.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASIAuthenticationDialog.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASIDataCompressor.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASIDataDecompressor.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASIDownloadCache.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASIFormDataRequest.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASIHTTPRequest.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASIInputStream.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/ASINetworkQueue.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/Reachability.m of type sourcecode.c.objc.
Unable to determine concrete GCC compiler for file /Users/Andy/Downloads/PromoTest/MBProgressHUD.m of type sourcecode.c.objc.

3

It does work becuase this code is written in Objective C, and Xcode 7 is Swift 1 & 2.0 based. You will have to use an older version of Xcode to use that framework.

4

This tutorial is more than six months old so questions are no longer supported at the moment for it. We will update it as soon as possible. Thank you! :]