Using iphone-exif for EXIF data

Question

I want to use iphone-exif library for EXIF data in my proj. But i dont know if i done any mistake or not it gives error like

Undefined symbols for architecture i386: "_OBJC_CLASS_$_EXFJpeg", referenced from: objc-class-ref in ViewController.o ld: symbol(s) not found for architecture i386

please give some solution for that. Thanks in advance for ur answers.

Answer 1

Instead of using that library Please go through this Solution

Actually I had the same problem so I had created it for myself for getting EXIF info purpose..

Answer 2

When you download iPhone-exif your will find two precompiles libraries.

1. Release-iphoneos/libiphone-exif.a
2. Release-simulator-iphonesimulator/libiphone-exif.a

Depending on where you'd like to run your app, you need to link against the right file. You probably added Release-iphoneos/libiphone-exif.a to your project and then you tried to run in on the Simulator (i386 architecture!).

Easiest way: Create a universal library of the both above.

1. Open terminal
2. Cd to your iphone-ex download folder (cd iphone-exif-0-9)
3. lipo -arch i386 Release-simulator-iphonesimulator/libiphone-exif.a -arch armv6 Release-iphoneos/libiphone-exif.a -create -output libiphone-exif-universal.a
4. add the file "libiphone-exif-universal.a" to your Xcode project

But i've just found out that there is a armv7 build missing. If you'd like to place your app on the appstore you once need also to build the library also for armv7 (out of the sources!)