How to link third party libraries properly in iOS

Question

I'm new in iOS development, and met this library linking problem in last few days.

I was trying to use GMGridView in a project, but cannot make it working.

This project is shipped as static library, so I just drag the xcodeproj file in my project. Then I added libGMGridView.a in Link Binary With Libraries, GMGridView in Target Dependencies. I also added the path in Header Search　Paths.

However, Xcode still report .h file not found error when I tried to import GMGridView.h.

Could anyone give me a hand on this? Thanks in advance!

I think this question should have some information for you. http://stackoverflow.com/questions/7250302/how-do-third-party-libraries-work-in-objective-c-and-xcode — revolver, Jun 12 '12 at 04:01
Weird. The error did disappear at first. But they jumped back when I built the app. — Selkie, Jun 12 '12 at 13:19

score 17 · Accepted Answer · edited Apr 23 '14 at 16:29

17

Had the same issue!!! Made it work!!!! soooooooo:

copy GMGridView folder from https://github.com/gmoledina/GMGridView to your project dir
in xcode right click on any file group and choose add files
find GMGridView folder in your folder dir and choose GMGridView.xcodeproj - (dont copy, create groups not folders, add targets)
go to your project targets - search - HEADER_SEARCH_PATHS add- GMGridView/**
select Building phases in settings - choose target dependencies and add GMGridView
select Building phases in settings - link binary libraries and add libGMGridView.a

import should be:

#import "GMGridView.h"
#import <QuartzCore/QuartzCore.h>

edited Apr 23 '14 at 16:29

John Riselvato

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answered Jun 13 '12 at 13:59

Tim Kozak

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Very odd - but very timely - that you were trying to figure this out at the precise time that I was as well. Thanks for this, it works! – adriandz Jun 13 '12 at 17:28
Im doing exactly as described but it still wont recognize ! please help! – Or Ron Oct 17 '12 at 19:01
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provide some more information or contact me comonitos@gmail.com – Tim Kozak Oct 18 '12 at 13:46
@PedroLopez says: Make sure that you add the QuartzCore.framework library to your target as well – Bob Fincheimer Oct 22 '12 at 16:01
@user1980105 you don't know how to add search paths? Or what? – Tim Kozak Jul 17 '13 at 15:21
Do you add GMGridView/** in GMGridView.xcodeproj or in your actual project...or both? – PWiggin Oct 22 '13 at 03:38
For me, I didn't have GWGridView just one folder up from my project file. I had to use ../../GMGridView/** for it to work. – PWiggin Oct 22 '13 at 03:54
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This solution works perfectly, I would only add one thing. You should add these linker flags to avoid the app to crash on tap: -ObjC -all_load – Olsi Oct 29 '13 at 14:30

How to link third party libraries properly in iOS

1 Answers1