Importing Objective-c framework in Swift?

Question

I'm trying to import a library of objective-c into swift. I've created a bridging file (a .h) and added it to the build settings, in Objective-C Bridging Header under Swift Compiler - General. Into the bridging file I've added #import <MyFramework>.

The problem comes now. This framework is private and particular. To install it correctly in Objective-C they told you to change the main.m to main.mm (which don't have sense in swift).

When I try to build the project I get 111 errors (Apple Mach-O linker error). It start with:

Undefined symbols for architecture x86_64:

And all the errors are similar to:

std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__grow_by(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)", referenced from:

So I really don't understand it. Do you have any clue why is this happening?

If you need me to post some more information just tell me.

Thanks for the help.

@macroland I don't think so. I've used it in another project, in objective-C, and it worked correctly. — Jaime Alcántara Arnela
– Jaime Alcántara Arnela, Commented Aug 21, 2017 at 10:08

Abdul Waheed · Accepted Answer · 2017-08-21 10:35:30Z

1

.mm extension is used for using c++ code .. std :: is c++ code. you just need to edit yourBridgingHeaderFile.m to YourBridingHeaderName.mm and you would be good to go

answered Aug 21, 2017 at 10:35

Abdul Waheed

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2 Comments

Jaime Alcántara Arnela Over a year ago

Ook, I was really lost on this. It work! Thanks for the help.

Abdul Waheed Over a year ago

i am Glad that i helped :)

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