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  • iOS-代理托付的使用

    #import "Rigester_ViewController.h"


    #import "Rigester_ViewController.h"


    @interface Rigester_ViewController ()


    @end


    @implementation Rigester_ViewController

    *

    正向传值能够用属性

    反向传值代理Block

     

     代理:又叫托付 自己不能办得事托付给别人去干

     UIAlertView,UITextField 都使用了代理    

     

    写代理的步骤:

     

        // 须要代理,托付的人

     

        1.声明代理里面的协议方法(@protocol

        2.声明协议的属性

        3.什么时候须要触发这个代理方法

        4.通过协议的属性调用代理方法(托付)

     

        // 代理者。被托付的人须要做的事

     

        5.导入协议

        6.在初始化有代理方法的对象的地方 挂上代理(代理者响应代理)

        7.写上代理方法 等待被运行

     

     

      

    */


    - (void)viewDidLoad {

        [super viewDidLoad];

        self.title = _titleName;

        

        

        UIButton *rigesterButton = [UIButton buttonWithType:UIButtonTypeCustom];

        rigesterButton.frame = CGRectMake(150, 550, 100, 50);

        [self.view addSubview:rigesterButton];

        rigesterButton.backgroundColor = [UIColor orangeColor];

        rigesterButton.showsTouchWhenHighlighted = YES;

        rigesterButton.layer.cornerRadius = 10;

        [rigesterButton setTitle:@"注冊" forState:UIControlStateNormal];

        

        [rigesterButton addTarget:self action:@selector(toRigester) forControlEvents:UIControlEventTouchUpInside ];

        

        

    }


    //什么时候触发这个代理方法

    - (void)toRigester

    {

        

        [self.navigationController popViewControllerAnimated:YES];

        

    //    4.通过协议的属性调用代理的方法

        [self.delegate toLoginWithName:@"JZQ"];

        

        

        

    }


    - (void)didReceiveMemoryWarning {

        [super didReceiveMemoryWarning];

        // Dispose of any resources that can be recreated.

    }


    /*

    #pragma mark - Navigation


    // In a storyboard-based application, you will often want to do a little preparation before navigation

    - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

        // Get the new view controller using [segue destinationViewController].

        // Pass the selected object to the new view controller.

    }

    */


    @end


    @interface Rigester_ViewController ()


    @end


    @implementation Rigester_ViewController


    - (void)viewDidLoad {

        [super viewDidLoad];

        self.title = _titleName;

        

        

        UIButton *rigesterButton = [UIButton buttonWithType:UIButtonTypeCustom];

        rigesterButton.frame = CGRectMake(150, 550, 100, 50);

        [self.view addSubview:rigesterButton];

        rigesterButton.backgroundColor = [UIColor orangeColor];

        rigesterButton.showsTouchWhenHighlighted = YES;

        rigesterButton.layer.cornerRadius = 10;

        [rigesterButton setTitle:@"注冊" forState:UIControlStateNormal];

        

        [rigesterButton addTarget:self action:@selector(toRigester) forControlEvents:UIControlEventTouchUpInside ];

        

        

    }


    //什么时候触发这个代理方法

    - (void)toRigester

    {

        

        [self.navigationController popViewControllerAnimated:YES];

        

    //    4.通过协议的属性调用代理的方法

        [self.delegate toLoginWithName:@"JZQ"];

        

        

        

    }


    - (void)didReceiveMemoryWarning {

        [super didReceiveMemoryWarning];

        // Dispose of any resources that can be recreated.

    }


    /*

    #pragma mark - Navigation


    // In a storyboard-based application, you will often want to do a little preparation before navigation

    - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

        // Get the new view controller using [segue destinationViewController].

        // Pass the selected object to the new view controller.

    }

    */


    @end


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  • 原文地址:https://www.cnblogs.com/lxjshuju/p/6846800.html
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