using my own iOS Static Lib ?

Olivier_Colard · January 21, 2015, 9:51am

Hi there,

I just created my own iOS Cocoa Touch Static Lib with Xcode.
When build files are created in Debug-iphoneos folder:

libGLib.a
>include
      >GLib
             GLib.h

What are the steps to be able to add and use this self created library into my iOS project ?

where to place these files in the project
where to copy them for the debug or build phase
…

Is there any documentation about it ?

Then I will have to handle the declares…

Any help appreciated !

Thanks.

Michel_Bujardet · January 21, 2015, 9:56am

AFAIK Xojo does not support static libraries yet, because or iOS 7 support.

You may want to have a look at https://forum.xojo.com/18657-iosgestures-using-ios-gesture-recognizers for a class that supports gestures.

Olivier_Colard · January 21, 2015, 10:07am

Seems a bit too complex for my poor knowledge.
I found an AES Encryptor/Decryptor for Objective-C and though I could create a wrapper …

Can be found here

Michel_Bujardet · January 21, 2015, 10:12am

[quote=160914:@Olivier Colard]Seems a bit too complex for my poor knowledge.
I found an AES Encryptor/Decryptor for Objective-C and though I could create a wrapper …

Can be found here [/quote]

You may want to take it step by step. Jumping into Objective-C libraries is probably much more complex than using a fairly easy to use gestures class that is readily available.

Plus, repeat, linking static libraries is not possible yet in Xojo iOS. Norman Palardy may give you more informations, all I know is from a question I asked a while ago about precisely using static libraries.

What is it you want to achieve ?

Olivier_Colard · January 21, 2015, 10:41am

I’m still looking for an easy way to perform AES or Blowfish encryption class, as mentioned before in

I have a SQLite database which is encrypted and I have the encryption key. But they want to have some specific columns encrypted with AES using the user’s password as key. Some data is really sensitive and they don’t want me or someone else to be able to get this info.

As stated before my customer doesn’t like RC4 encryption, which was an easier solution.
But I’ll talk to them again.

Michel_Bujardet · January 21, 2015, 11:13am

[quote=160922:@Olivier Colard]I’m still looking for an easy way to perform AES or Blowfish encryption class, as mentioned before in

I have a SQLite database which is encrypted and I have the encryption key. But they want to have some specific columns encrypted with AES using the user’s password as key. Some data is really sensitive and they don’t want me or someone else to be able to get this info.

As stated before my customer doesn’t like RC4 encryption, which was an easier solution.
But I’ll talk to them again.[/quote]

You should stick to the same thread, if your ultimate goal is to find a solution to implement AES or Blowfish. Starting several threads will only disperse the issue.

Olivier_Colard · January 21, 2015, 11:21am

I opened a new thread because it was about using a static lib.
But I’ll follow your advice and post further remark, if any, to the other thread.

I’ll mark your first answer as correct.

Thanks anyway.

Michel_Bujardet · January 21, 2015, 11:35am

[quote=160933:@Olivier Colard]I opened a new thread because it was about using a static lib.
But I’ll follow your advice and post further remark, if any, to the other thread.

I’ll mark your first answer as correct.

Thanks anyway.[/quote]

My response was only partly adequate. I am sorry, since you mentioned Cocoa touch, I inferred you needed touch support, when in fact you needed encryption. Let us continue that discussion in the other thread

Norman_P · January 21, 2015, 2:37pm

There’s an implementation of Blowfish written entirely in Xojo/REALbasic code
That would be the easiest to achieve this

Joe_Ranieri · January 21, 2015, 3:23pm

If I remember correctly, static libraries will actually work. The only problem is that you need to specify the library name as the full path to the .a file on disk, which isn’t very useful when working on a team.

Christian_Schmitz · January 21, 2015, 4:35pm

Joe could you give details on the use of static libs?

Olivier_Colard · January 21, 2015, 10:13pm

@Joe Ranieri: [quote]you need to specify the library name as the full path [/quote]
Could you give more info about this ? Where to place the .a and include .h files within the project ? Where to copy them when building, …

@Norman Palardy:[quote]There’s an implementation of Blowfish written entirely in Xojo/REALbasic code[/quote]
I found one googling, is it this one you’re thinking about: ?

Thanks !

Olivier_Colard · January 21, 2015, 10:16pm

@Michel Bujardet : Sorry Michel, I removed your answer as the good one since Joe says it could be possible. Wait and see.

Christian_Schmitz · January 21, 2015, 10:18pm

I think you still need to convert .h file into declares.
The question is how we can keep the .a file next to project and put lib name in declares.

Joe_Ranieri · January 21, 2015, 10:28pm

You don’t place them in the project. The declare’s library name has to be a full path name to the .a file on disk when you build. It’s less of a feature and more of an interesting side effect of how linking iOS apps for the device works.

Olivier_Colard · January 21, 2015, 10:35pm

Joe, Christian, thanks to both of you.

I’ll let you know if and when I succeed.
I’ve never converted .h file into declares, so be patient ;–)

Jason_King · January 22, 2015, 2:15am

If you have specific questions on converting .h into declares be sure to ask. An aging but still useful reference on how to write declares is here: https://www.declaresub.com/ideclare/gettingstarted.html, although learning by trial and error is a good way too

Michel_Bujardet · January 22, 2015, 8:58am

You mean the full path on the development machine ? So for instance I would need to go

Declare Function myfunction Lib "/User/Mitch/Documents/Myproject/toto.a" () as Integer

Or did I understand totally wrong ?

Up until now, we had been told it was impossible to link static libraries, so joe, if you can put us on the path, it will be greatly appreciated. In particular, there are libraries for most everything in Objective-C that are sorely needed for iOS, such as printing and in app purchase, just to name two.

TIA

Joe_Ranieri · January 22, 2015, 9:00am

[quote=161301:@Michel Bujardet]You mean the full path on the development machine ? So for instance I would need to go

Declare Function myfunction Lib "/User/Mitch/Documents/Myproject/toto.a" () as Integer

Or did I understand totally wrong ?[/quote]

I think this should work for device builds. I’ve never actually tried it though.

Well, it won’t work for simulator builds.

Michel_Bujardet · January 22, 2015, 10:03am

[quote=161302:@Joe Ranieri]I think this should work for device builds. I’ve never actually tried it though.
Well, it won’t work for simulator builds.[/quote]

This is great news, though. As we are right now all forced to debug on device, it will not be much of an extra pain to try. And the possibilities look awesome.

I am not very connaissent in Objective-C, but I will try probably next week when hopefully I am finished with my current project. In App Purchase would be a stupendous possibility !

Or maybe our fantastic Christian could look into it ? I would gladly buy iOS libraries from him !