//委托
import UIKit
protocol ValuePassDelegaete:NSObjectProtocol{
func passValue(value:String)
}
class ViewController2: UIViewController {
var delegate:ValuePassDelegaete?
@IBOutlet weak var valuelab: UILabel!
@IBAction func Back(sender: UIButton) {
self.delegate!.passValue("123")
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// dispose of any resources that can be recreated.
}
/*
// MARK: - Navigation
// In a storyboard-based application,you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue,sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
//代理
import UIKit
class ViewController1: UIViewController,ValuePassDelegaete {
@IBOutlet weak var valueLab: UILabel!
@IBAction func Click(sender: UIButton) {
let view2 = ViewController2(nibName:"ViewController2",bundle:nil)
view2.delegate = self
self.navigationController?.pushViewController(view2,animated: true)
}
func passValue(value: String) {
self.valueLab.text = value
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override func didReceiveMemoryWarning() {
*/
}
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。