######A控制器
override func viewDidLoad() {
super.viewDidLoad()
let btn1 = UIButton(frame: CGRect(x: 0, y: 300, width: 100, height: 100))
btn1.setTitle("push3", for: UIControlState.normal)
btn1.backgroundColor = UIColor.orange
self.view.addSubview(btn1)
btn1.addTarget(self, action: #selector(pushVC3), for: UIControlEvents.touchUpInside)
}
@objc func pushVC3() {
let vc = ThridViewController()
/// 成功选择后将数据回调,并推出视图
vc.backLocationString = { (address,province,city,area) in
print(address,province,city,area)
}
self.navigationController?.pushViewController(vc, animated: true)
}
######B控制器
lass ThridViewController: UIViewController {
/// 返回数据回调
public var backLocationString: ((String,String,String,String)->())?
override func viewDidLoad() {
super.viewDidLoad()
self.title = "ThridViewController"
let btn = UIButton(frame: CGRect(x: 0, y: 100, width: 100, height: 100));
btn.backgroundColor = UIColor.red;
self.view.addSubview(btn)
btn.addTarget(self, action:#selector(popclick), for: UIControlEvents.touchUpInside)
}
@objc func popclick() {
if backLocationString != nil{
backLocationString!("aaa","bbb","ccc","ddd")
}
}
}
