How to call third party sdk in kivy on ios?

[gh king]

I want to call a third party sdk, which is some .a and .h file in ios. just like the following picture:

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I have just find how to add *.jar by buildozer, and call jar through pyjnius on android.

But there is no talk about how to add and call *.a file on ios. 

could you please give me some advice to research, and if  there is some blog or document that would be perfect.

thank you very much!