iOS Tutorial [Objective C] Writing libraries for B4i

[Alberto Iglesias]

I don´t think so, look:


The dependencies of library:

and the dependencies of example of app calling the library:

Have another place I can check?

This app example calling the library, works very well, but when compiling with B4i no? Where I do something wrong????

 

[Erel]

Where does this library come from?

 

[Alberto Iglesias]

http://www.etpan.org/libetpan.html

 

[Erel]

It seems like you are missing one or more frameworks. libz.dylib is one of them.

 

[Alberto Iglesias]

Erel,

I tried with another library and the same error, look:

cd /Users/iglesias/Development/B4i-MacServer/UploadedProjects/iglesias
export IPHONEOS_DEPLOYMENT_TARGET=7.0
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Users/iglesias/bin/Sencha/Cmd/3.1.0.192:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/git/bin:/Users/iglesias/Development/sdk/platform-tools:/Users/iglesias/Development/sdk/tools"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.4.sdk -L/Users/iglesias/Development/B4i-MacServer/UploadedProjects/iglesias/Payload -L../../Libs -F/Users/iglesias/Development/B4i-MacServer/UploadedProjects/iglesias/Payload -F../../Libs -filelist /Users/iglesias/Development/B4i-MacServer/UploadedProjects/iglesias/build/B4iProject.build/Release-iphoneos/B4iProject.build/Objects-normal/arm64/POP3SAMPLE.LinkFileList -ObjC -fobjc-arc -fobjc-link-runtime -miphoneos-version-min=7.0 -lCore -framework Foundation -framework CoreGraphics -framework UIKit -lvnpop -framework AVFoundation -lchilkatIos -lresolv -lpthread -liDebug -Xlinker -dependency_info -Xlinker /Users/iglesias/Development/B4i-MacServer/UploadedProjects/iglesias/build/B4iProject.build/Release-iphoneos/B4iProject.build/Objects-normal/arm64/POP3SAMPLE_dependency_info.dat -o /Users/iglesias/Development/B4i-MacServer/UploadedProjects/iglesias/Payload/POP3SAMPLE.app/POP3SAMPLE
Undefined symbols for architecture arm64:
"std::terminate()", referenced from:
___clang_call_terminate in libchilkatIos.a(CkoAtom.o)
___clang_call_terminate in libchilkatIos.a(CkoBounce.o)
___clang_call_terminate in libchilkatIos.a(CkoCertChain.o)
___clang_call_terminate in libchilkatIos.a(CkoCertStore.o)
___clang_call_terminate in libchilkatIos.a(CkoCgi.o)
___clang_call_terminate in libchilkatIos.a(CkoCrypt2.o)
___clang_call_terminate in libchilkatIos.a(CkoDateTime.o)
...
"vtable for __cxxabiv1::__class_type_info", referenced from:
typeinfo for CkObject in libchilkatIos.a(CkObject.o)
typeinfo for _ckBufferSet in libchilkatIos.a(DataBuffer.o)
typeinfo for DateParser in libchilkatIos.a(DateParser.o)
typeinfo for _clsBgTask in libchilkatIos.a(ClsBgTask.o)
typeinfo for _clsEncode in libchilkatIos.a(ClsEncode.o)
typeinfo for ChilkatRand in libchilkatIos.a(ChilkatRand.o)
typeinfo for UnicodeInfo in libchilkatIos.a(UnicodeInfo.o)
...


I using now with this UNIQUE library, don´t have any dependencies, just only one ".a"
http://www.chilkatsoft.com/downloads_ios.asp


In my xcode sample project works perfecly, but when try to compile with B4i no, below is my source code, including this library, my test project and my super simple library for B4i, can you check if forgot some to put in B4i?

http://www.visualnet.inf.br/UploadTemp/testeChilkat.zip

and my B4i sample to use my xcode library

http://www.visualnet.inf.br/UploadTemp/B4iExample.zip



HELP PLEASEE!!!!

I can´t believe in XCODE works and B4i no!


I don´t want develop in XCODE my next app, I´m waiting only for this solution to begin through B4i.

 

[JanPRO]

Maybe it's because of the linker flags, which can not be set in B4i, try to remove the linker flags in your Xcode project an run your app, then check if the error is the same like in B4i

 

[Alberto Iglesias]

Yes, I get those and others errors in Xcode....

Then I can´t use this libraries in B4i, is correct? B4i is limited with this flags?

Not have anyway to put this flags into the B4i ? in a project or in a IDE?

:-(

 

[JanPRO]

Currently I have exactly the same problem: http://www.b4x.com/android/forum/threads/implementation-of-linker-flags.57362/#post-361198

I guess that you need to add this flag when you compile the library.

I hope I am wrong with my guess and Erel is right .....


I am really not sure at this point

 

[Alberto Iglesias]

But my library have those flags when compiling to create B4i library

:-(

 

[Alberto Iglesias]

Erel,

and If I create a Framework (not a library), just like the Google Maps SDK, can be used with less problems?

In this case how to create a XML to use in B4i? Or can be used directly with Inline Objective-C without libray?

 

[Erel]

Try to add this line to the header file:
//~DependsOn:libstdc++.dylib

 

[Alberto Iglesias]

I don´t know Erel, but I think it´s work!

I accessing my mac in my home via teamviewer and not connected with my iphone right now, but soon I try to run.

Compiling via B4i is working and no errors....

I commented after the tests....

 

[Alberto Iglesias]

Erel,

Now it´s working, compiling with no errors.

The only command it´s not working now (and is the same anothers libraries) is for fire the events, look:


-(void)InitializeB4I*)bi NSString *)EventName {

[B4IObjectWrapper setBIAndEventName:self :bi :EventName];

[B4IObjectWrapper raiseEvent:self "_oninitialized:" []];


// **** I TRIED TOO
[B4IObjectWrapper raiseEventFromDifferentThread:self : @"_oninitialized:" []];
[B4IObjectWrapper raiseEventFromDifferentThread:self : @"_oninitialized:" :nil;
[B4IObjectWrapper raiseEvent:self "_oninitialized:" :nil;

}

and the B4i:

objPOP.Initialize("objPOP")

Sub objPOP_oninitialized <==== NOT FIRE!!!
LogColor("[objPOP_onInitialized]",Colors.Blue)
End Sub


Why????

 

[Erel]

Please use [code]code here...[/code] tags when posting code.

Can you post the code of the Initialize method?

 

[Alberto Iglesias]

in XCODE

-(void)Initialize:(B4I*)bi :(NSString *)EventName {
    [B4IObjectWrapper setBIAndEventName:self :bi :EventName];
    [B4IObjectWrapper raiseEvent:self :@"_oninitialized:" :@[]];
  //[B4IObjectWrapper raiseEventFromDifferentThread:self :@"_oninitialized:" :nil];
}

in B4i

Private Sub Application_Start (Nav As NavigationController)
    NavControl = Nav
    Page1.Initialize("Page1")
    Page1.Title = "Page 1"
    Page1.RootPanel.Color = Colors.White
    NavControl.ShowPage(Page1)
   
    objPOP.Initialize("objPOP")
End Sub
Sub objPOP_oninitialized
    LogColor("[objPOP_onInitialized]",Colors.Blue)
End Sub

and in Process_Global
Dim objPOP As POP3


And

 

[Erel]

It should be _oninitialized instead of _oninitialized:

 

[Alberto Iglesias]

puffffff I don´t see that basically error! sorry :-(

 

[Alberto Iglesias]

Perfectly Erel, now it´s almost done....


For create a event to receive a "List" I think is NSArray * wrapper to send no?

Why when I send a NSArray not work? Look my sample:

//~eventownloadCompleted(Messages as List)

in Xcode

NSArray *retArray;
[B4IObjectWrapper raiseEvent:self :@"_downloadcompleted" :@[retArray]];

and in B4i

Sub objPOP_DownloadCompleted(Messages As List)
    LogColor("[objPOP_DownloadCompleted]" & Messages,Colors.Blue)
End Sub

When I change to String or Int, works very well, but with NSArray no.

Whats the problem? Where I doing wrong?

 

[Alberto Iglesias]

I Founded how works:

B4IList* lst = [B4IList new];
lst.object =retArray;
[B4IObjectWrapper raiseEvent:self :@"_downloadcompleted:" :@[lst]];

PS: When have a parameter to send, you need to put ":" after the name of event

 

[JanPRO]

Is it also possible to write and use a library in Objective-C++? For example when you want to wrap a framework which is based on C++?