在Interface Builder和XCode中连接UILabel？ [英] Connect a UILabel in Interface Builder and XCode?

问题描述

我正在尝试做一些简单的事情，比如在XCode和IB中为View添加一个Label，我无法弄清楚如何去做。我在网上找到的所有样本都是旧版本的IB，因此说明不正确。

I am trying to do something as simple as add a Label to a View in XCode and IB and I can't figure out how to do it. All the samples I find online are for older versions of IB so the directions aren't correct.

我的.xib文件中有一个标签，在我的Controller.h中文件我有一个IBOutlet UILabel声明了一个属性设置。

I have a label on my .xib file, in my Controller.h file I have an IBOutlet UILabel declared with a Property set up.

在我的Controller.m文件中，我合成了该属性。

In my Controller.m file I synthesized that Property.

在Interface Builder中，我不能为我的生活找出如何将我的代码中的标签与.xib上的Label相关联。
每当我尝试将Connection连接到File的Owner时，唯一显示的选项是View。

In Interface Builder, I cannot for the LIFE of me figure out how to associate my label in my code with the Label on the .xib. Whenever I try to drag the Connection to File's Owner, the only option that shows up is "View".

如果我查看Library下的Controller Interface Builder的窗口，Label在Outlets下显示为UILabel。我很确定它曾经是一个类型id，但它自动显示为UILabel，如果我尝试添加id，它也不起作用。

If I look at the Controller under the Library Window of Interface Builder, the Label shows up as a UILabel under Outlets. I am pretty sure that it used to be a type "id", but it automatically shows up as UILabel and if I try to add an "id" one, it doesn't work either.

有人能指点我到某个地方来解释这个愚蠢的事吗？使标签有文本不应该这么困难。

Can someone point me to somewhere to explain this stupid thing? It should not be this difficult to make a label have text.

推荐答案

假设您的视图名为ExampleView。单击文件所有者，然后按⌘+ 4。这将突出显示身份框。确保类名与类的名称相同。

Assuming your view is called ExampleView. Click on the file owner and then press ⌘+4. This will highlight the identity box. Make sure that the class name is the same as the name of your class.

保存并关闭Interface Builder，然后进入Xcode并验证：

Save and close Interface Builder and then go into Xcode and verify:

// ExampleViewController.h
#import <UIKit/UIKit.h>

@class ExampleViewController;
@interface ExampleViewController : UIViewController {

    IBOutlet UILabel *label;
}

@property (retain, nonatomic) IBOutlet UILabel *label;

@end

在你的.m文件中：

// ExampleViewController.m
#import "ExampleViewController.h"

@implementation ExampleViewController

@synthesize label;

然后保存xcode文件并打开ExampleView。将标签拖到视图上。您不应该将该标签连接到文件所有者。

Then save the xcode files and open up your ExampleView. Drag a label onto the view. You are not supposed to connect that label to the Files owner.

INSTEAD您点击文件框。 HIT⌘+ 2这将打开连接框。然后你会看到你的出路。点击并将其与您的标签相关联。

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