Objective-C与Swift之间的互相调用和跳转

#import "ViewController.h"
#import "OCAndSwift-Swift.h"    // 引入头文件
@interface ViewController ()
@end
@implementation ViewController

- (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
}

- (IBAction)btnClicked:(id)sender {
  // Swift文件
  ChildViewController *vc = [[ChildViewController alloc] initWithNibName:@"ChildViewController" bundle:nil];
  [self.navigationController pushViewController:vc animated:YES];
  
}

import UIKit
class ChildViewController: UIViewController {
  override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view.
  }

  @IBAction func btnClicked(_ sender: Any) {
    let twoVC = ChildTwoViewController(nibName:"ChildTwoViewController", bundle: nil)
    self.navigationController?.pushViewController(twoVC, animated: true) 
  }