Objective-C – Use library from another library - ios

I'm using SSToolKit in my project. The SSToolKit project uses GHUnitTest. I want to use GHUnitTest in my project. Do I need to download and install GHUnitTest or can I use the one included with SSToolKit. What is the best practice to do in this situation? (my app is an iOS-app)

You can use the one bundled with SSToolKit, there is no point in downloading another library. Basically, this is the same as if you downloaded the library alone - it is just bundled with another library.
If you try to add another GHUnitTest, it will create errors (not good :D ).

Related

Build a framework which can use only in one iOS app?

Is it possible to create a framework which only works on a specified app bundle identifier?
I want to prevent to reuse ur framework by shipping out my app source code / project which is using a selfmade framework
If you ship source code, you cannot prevent the code from being reused. If you want to ship the compiled framework, you can use the approach described in the answer of Reinier Melian.
You could also consider creating a pure library instead of a framework. See here and here for the differences.

How to create framework with other frameworks and library dependency?

I know, there are so many same questions but I didn't get answer for my requirement.
First time I am creating framework. I have created test framework using Raywenderlich example. But my requirement is little bit different. I used so many different frameworks and also used SQLCipher in my project. Now, I want to convert this project into framework. I followed all the steps but the problem is occur when I am trying to build. Getting an error for SQLCypher because I didn’t add to my framework to avoid conflicts. Finally, I have added SQLCypher library to create build without error and it worked but now I am getting linker error when I am using that framework to test in testProject. I didn’t find any example with third parties. Please help me to solve this issue.
I had the same issue.
One solution is to change all method names of other frameworks or libs, but some lib is not open source.
Another solution is work for me which is to use cocoapods. But the user
who wants to use your framework will be forced using cocoapods, depending iOS 8.0 or above, depending the same version of 3rd libs. I have nothing to do with this restriction.
Seems the best way is do not depend 3rd libs in a framework.

Using a third party library inside a framework

I am building an SDK which uses some third party library (for example, AFNetworking).
As far as I know, if an app using my SDK also wants to use the same library, it will end up generating a compile error with duplicate symbols.
What is the best way to overcome it?
Thanks!
P.S. I understand that prefixing the library's files inside the framework with some SDK prefix will solve the problem, but is there a cleaner way?

Use two versions of the same library

I'm working in a iOS project that includes a static library created by another company.
The library include an old version of AFNeworking and I don't have any source files.
Now i need to use a more recent (and less bugged) version of afneworking, but i cannot include the same class twice in the project (of course) because all the "duplicate symbols".
I understand that it's impossible replacing the version included in the library, but how can i include another version along the old one?
There is a (easy) way to refactor the entire framework before include in my project?
thanks
You'll have to repackage the static library to remove the embedded AFNetworking files.
Unpack the library with:
$ ar x libwhatever.a
And re-package it, including all files except the AFNetworking object files:
$ ar cr libwhatever.a file1.o ... fileN.o
You will then have to link your executable with the new AFNetworking static library and hope that there haven't been API changes which will break the code in libwhatever.a. If there are then I doubt there is much you can do.
I'm afraid this isn't easy to do. Very few environments allow you to link against two separate versions of the same framework at the same time, and Xcode / iOS is not one of them.
As I see it, you have three options:
1) Link against their library and use the same version of AFNetworking they use.
2) Link against their library, and manually load the newer version of AFNetworking and pull symbols from it. Be warned: this will get ugly fast and future maintainers will wonder what you were smoking.
3) Get them to update their library.
On a side note, I don't know the circumstances here, but in general they should be providing you with sources. It's a very backwards practice to provide only a static (static!) library and no way to know what it's doing inside. You'll have to sign a software license agreement and whatnot to protect their interests.
The best and most proper way of handling this would be to contact the the creator of the static library and get them to resolve the situation. They could resolve it either by updating the embedded version of AFNetworking, removing their dependence on AFNetworking, or adding a prefix for their embedded copy of AFNetworking. The last one is probably a good idea anyway when a third party library embeds a different library, because otherwise it would be impossible to use two libraries simultaneously that both include the same third party library.
You could also refactor the copy of AFNetworking that you include yourself to change the names of classes to have a prefix, although this should be unnecessary, as the static library vendor should have done this themselves already.
Lastly, you could find a different library that accomplishes the same thing as your current one but that doesn't embed AFNetworking.

How to use sharpziplib in Monotouch?

Hi I need to unzip a file in Monotouch for an iOS (and Andriod later) App and sharpziplib looks like a good choice (is it?). But how do I go about adding it in MonoDevelop (I have the latest version)?
I have downloaded ICSharpCode.SharpZipLib.dll, but how/where is it added to my project (solution)? Can anyone give me step-by-step instructions?
Also which .net version of the DLL should I be using? There are three: net-11, net-20, netcf-20 (i think it's the last one but would be good to have that confirmed).
You must create a MonoTouch class library project for ICSharpCode.SharpZipLib and add the corresponding source files to that project.
Then you can either reference the resulting assembly or the project itself in your solution.

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