swift: Using UIApplication Subclass in main.m

Make the swift class like this

import UIKit

import Foundation

@objc(MyTest2) class MyTest2: UIApplication

{

    

    

  

    

}

and modify the main.m

#import <UIKit/UIKit.h>

#import "AppDelegate.h"

#import "test3-swift.h"  //test3 is the project name, not a real file in project

int main(int argc, char * argv[]) {

    @autoreleasepool {

        return UIApplicationMain(argc, argv, NSStringFromClass([MyTest2 class]), NSStringFromClass([AppDelegate class]));

    }

}