通过方法传递 2 个对象 - iPhone SDK

发布于 2024-10-03 07:04:43 字数 502 浏览 1 评论 0原文

我有一个“观察者”，它监视 UISwitch 值的变化：

[cell.switcher addTarget:self action:@selector(switched:withName:) forControlEvents:UIControlEventValueChanged];

当值更改时，调用此方法：

-(void)switched:(UISwitch *)switcher withName:(NSString *)name;

如您所见，我有两个对象，需要通过第一个代码传递。如何通过 addTarget:action:forControlEvents 方法发送 nsstring 和 uiswitch 的对象，以便我可以在选择器 Switched:withname 中访问它们？

谢谢，

Kevin

编辑：我不太擅长 obj-c 并且没有真正正确地学习这些术语，所以如果我犯了错误，请告诉我！

原文

I have this "observer" that watches the UISwitch for a change in value:

[cell.switcher addTarget:self action:@selector(switched:withName:) forControlEvents:UIControlEventValueChanged];

When the value is changed this method is called:

-(void)switched:(UISwitch *)switcher withName:(NSString *)name;

As you can see I have two objects which I need to pass with the first code. How do I send the object of a nsstring and a uiswitch through the method of addTarget:action:forControlEvents so that I can access them in the selector switched:withname?

Thanks,

Kevin

EDIT: I'm not very good with obj-c and didn't really learn the terms correctly, so if I made a mistake please let me know!

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

淡写薰衣草的香 2024-10-10 07:04:43

最好的方法是标记你的 UISwitch 对象：

uiSwitch1.tag = 0;
uiSwitch2.tag = 1;
...

然后在你的 switched: 方法中，你可以测试发送者的标签并在那里定义你的字符串：

-(void)switch:(id)sender {
    switch ([sender tag]) {
        case 0:
        // set the string for uiSwitch1
        case 1:
        // set the string for uiSwitch2
        ...
    }
}

Best way to go about this is to tag your UISwitch objects:

uiSwitch1.tag = 0;
uiSwitch2.tag = 1;
...

Then on your switched: method you can test the sender's tag and define your string there:

-(void)switch:(id)sender {
    switch ([sender tag]) {
        case 0:
        // set the string for uiSwitch1
        case 1:
        // set the string for uiSwitch2
        ...
    }
}

回复收藏 0 原文