Is it possible to do this in such a way that the parent project does not need any settings that refer to the sub-library -- only to the parent library?
(For example, I want header search paths to be picked up automatically).
I think you are looking for a Framework, not actually a static library ( You will always need the symbol references aka headers when you use static libraries )
The solution that Apple gave us, is Frameworks.
You can checkout this GitHub project which contains an Xcode 4 template for creating iOS frameworks again.
Good luck!
Related
This question is a continuation of a previous one I'm currently migrating this (https://github.com/emilwojtaszek/leveldb-swift) library from swift 2 to swift 3/4. Here is the link to my fork https://github.com/lu4/leveldb-swift/tree/MigrationFromSwift2ToSwift3 (please note that the target branch is MigrationFromSwift2ToSwift3)
I was able to resolve (with many thanks to #Ruslan Serebriakov) all of the issues with initial code base and check that the code is running.
However after trying to update LevelDB C code to latest master I got new type of error which I don't understand how to resolve:
Include of non-modular header inside framework module 'LevelDB.c': '/Path/to/Project/leveldb-swift-migration/vendor/leveldb/include/leveldb/export.h'
I've did some research on the internet but the issues described there seem non-related with one I've stumbled on. Here is an image of the issue
Any help is appreciated, thank you in advance!
I'm never 100% certain with mixed language frameworks. But an error like this happens in Swift projects when:
since you cannot use a Bridging Header in frameworks,
you #import a C header in the Foo-Framework.h to expose it so the Swift code, and
the header is not itself marked "Public" to the target.
"Non-modular" seems to indicate "not part of the published module interface". At least with Swift--C mixes, you can only combine both through making the C headers public; no way to import private header files there, which is weird.
Give it a shot: Since you are obviously importing the file in non-Swift code, try to locate the export.h header file in your Xcode project, open the File inspector (⌘⌥1), and ensure public visibility in the framework target:
This issue is because the SDK u are importing is not modular or u can say modulemap file is missing. So make sure modulemap file should be available inside the framework folder. Also make sure that all public headers are listed explicitly in the modulemap. This issue will be resolve 100% if module map file will be include in the third party framework.
I am being presented with a very interesting project. The task that I must complete is to figure out a way to allow a partner to be involved in an app without giving up their source code. The code will be included in the main bundle of the app so it is not dynamically stored. The partner has a fully functional app that is needed to be ran in a window within the main app at the appropriate time. I know having the partners create a web app would be ideal so it is treated like a webpage but I am more concerned with codes that must be written natively in iOS.
My question is what is the best way to go about solving this? In theory it is like an App within an App. Is there a way if they gave up their .app file I can include this in the bundle and then run it when I catch a certain event? Should I have the partners create their code in a framework and then import into the shell project? What is the best way to approach this problem?
If your 2nd-party doesn't want to provide you with the source code, why doesn't he compile it to object code then let you simply link it to your app?
By the way, at least on official (non-jailbroken) iDevices, apps can't 'embed' or 'open' one another in such a way - you can open an app programmatically if 1. it's a separate app 2. it has a registered special URL associated to its bundle.
Is there a way if they gave up their .app file I can include this in
the bundle and then run it when I catch a certain event?
No, you'll want to have them create a library instead. You can then include that library in your project.
Creating a library is as simple as:
Choose File->New...->Project... in Xcode.
Select the "Cocoa Touch Static Library" project template.
Add your code.
Build.
The result is a static library that you can add to your application(s). The library will contain the compiled code that you added, but doesn't include the source code. The library developer should provide whatever header files are necessary to use the code in the library.
An App within an App is possible however it requires a common data framework that allows one app to reference the same data without confusing the the source of and destination of the data.
Such a framework allows one app to interact with another app referencing the same data.
I needed to create a framework (which requires a static library) for a project I'm working on. I used this tutorial to create the framework, then copied the static library into the project and it worked.
But, when I dragged the framework to an iOS project, it shows a ton of errors.
`Undefined symbols for architecture i386:"_OBJC_CLASS_$_SomeClassFromTheStaticLibrary",referenced from:_OBJC_CLASS_$_AnotherClass in MyFramework`
What I think is happening is that the iOS project wants to recompile the framework and it cannot, because it can't locate the static library. All errors disappear if I add the static library to the iOS project. This is what I want to avoid.
Basically I want to have the iOS project -> Framework -> Library instead of having the library in both the project and the framework.
I have tried adding the static library as a resource in the framework, but it didn't work.
I doubt this is possible. When you think about what is happening you will see the problem.
The framework is compiled and the static library is processed so that things like extra symbols are stripped out
The app is now compiled and linked against the framework which may or may not have had the symbols that the app is requiring
I did get this to work if ONLY the framework was using the static library (logical) but I can't find a way to share the code across the framework & the app.
If a symbol is hidden (either via Symbols Hidden by Default/GCC_SYMBOLS_PRIVATE_EXTERN being set to YES or __attribute__ ((visibility ("hidden"))) being applied to certain symbols), then that symbol will be available when statically linking the library, but not when dynamically linking the framework.
Ensure that the static library's symbols are not hidden, and you should be able to access them from your app.
I have followed this link to create custom framework. I have static library inside my framework and it works fine with that.
I have copied his steps in my blog for my understanding along with a script to make it universal.
I have built a generic application which can handle different content data - but for each content data, it will be a different iphone application (with a different name).
I would like of couse to only keep one code base for all these different apps (as it would be easier maintenance) but I have 2 questions:
1- I would need to change the appname in the buildsettings, etc.. and may be it is going to be an overkill...? especially with the upload process then...? What are your experiences in that domain and what would you recommend me to do?
2- how can I have all the pictures for logo (Icon.png, etc...) to co-exist into one app? For the moment, I have a global variable (as a singleton pattern) that I switch to change appname and loaded data inside the program
Thanks in advance for your help
Cheers,
geebee
You can do this pretty easily, it's what most developers do in their lite versions. All you have to do is add another target to create a new app out of the same code and use that global variable.
In order to change the images included in the app you simply edit the target and under the copy bundle resources menu remove the unnecessary resources. You'll notice that when you add a new resource you have the option to include it in any one or more of your targets. Simply select the one that you want and it will only be accessible to that target.
The reason that this works is that each target can have its very own info.plist. All the settings and resources can be separate, and the code can be different using your #ifdef global_var.
Here's a slightly outdated tutorial that should get you started if you need it.
http://www.bit-101.com/blog/?p=2098
For each application name add one target.
Create one xyz-info.plist for each of the target. (in this case for the xyz.app)
In each of the xyz-info.plist assign the appropriate icon files etc.
Within your build phases for each of the targets you will define which images go with which app.
I need to be able to write and read from a rtf file in iOS.
The omnigroup framework has the 2 classes i am looking for :
OmniUI/iPad/RTF/OUIRTFReader
OmniUI/iPad/RTF/OUIRTFWriter
I managed to build the frameworks but i cant figure out how to integrate theses classes in my own project.
I had the following frameworks to my project :
OmniAppKit.framework
OmniFoundation.framework
OmniBase.framework
I still get some undefined identifier such as :
RCS_ID("$Id$");
OBINITIALIZE
OMNI_POOL_START
Has anybody been able to use the omnigroup framework in your own project ?
Thanks,
Vincent
We do need some better documentation for this, but the TextEditor example app in OmniUI/iPad/Examples/TextEditor may be a good starting point for seeing how we include the frameworks in our apps.
In this particular case, you may prefer to pull out the OUIRTFReader class and any dependencies it needs from OmniAppKit and OmniFoundation into your project. updating the #imports to be "..." instead of <OmniThis/AndOmniThat.h>.
Perhaps you could try following the instructions given as part of this thread on the Omni Group forums. They appear to have been able to build the framework under the iOS 4.2 SDK.
I don't think you want the OmniAppKit framework, as that is just for the Mac.