OCtoSwift

OC调用Swift

ViewController.m中 下面方法调用SeconViewController，SeconViewController是swift创建的

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{

SeconViewController *vc = [[SeconViewController alloc]init];
[vc seconViewFunc];
vc.delegate = self;
[self.navigationController pushViewController:vc animated:YES];

}

在SeconViewController中，通过SwiftViewDelegate代理的方式，可以给ViewController反向传值 override func touchesBegan(_ touches: Set, with event: UIEvent?) { //代理 self.delegate?.removeSwiftView() }