ios - How to run Objective-C file in the beginning of Swift project -

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i trying use objective-c in swift project.i want use this library of objective-c in swift.i imported library in swift project.i want library run in beginning when build project,but when build project,viewcontroller.swift being run.so,how run library in beginning?

in objective c can have class +(void)load method... run early, maybe before set up... can investigate constructor attribute.


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