ios 如何使用 IBOutletCollection 将多个 UIImageViews 连接到同一个插座？
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How can I use IBOutletCollection to connect multiple UIImageViews to the same outlet?
提问by BalestraPatrick
I have 10 UIImageViews which do the same thing (they have some void methods that change their image with a timer). My UIImageView is an outlet and I want to connect all the 10 imageViews to the same outlet, but interface builder doesn't allow me.
我有 10 个 UIImageViews 做同样的事情（他们有一些用计时器改变他们的图像的无效方法）。我的 UIImageView 是一个插座，我想将所有 10 个 imageView 连接到同一个插座，但界面生成器不允许我。
I found that there is a solution, IBOutletCollection. Can anyone explain to me how to use this to connect multiple imageViews to the same outlet?
我发现有一个解决方案，IBOutletCollection。谁能向我解释如何使用它来将多个 imageViews 连接到同一个插座？
回答by Paul.s
Declare a property to hold your imageView's and then hook them up in interface builder like normal
声明一个属性来保存你的图像视图，然后像往常一样将它们连接到界面构建器中
@property (nonatomic, strong) IBOutletCollection(UIImageView) NSArray *imageViews;
it's just a normal NSArraybut when the nib is loaded it will be populated with your imageView's
这只是一个正常的NSArray但是当笔尖被加载时，它会被你的 imageView 填充
Update
更新
In the header file for you view controller which has the multiple imageView's on you need to add the property above - it may look something like this:
在具有多个 imageView 的视图控制器的头文件中，您需要添加上面的属性 - 它可能如下所示：
@interface MyViewController : UIViewController
@property (nonatomic, strong) IBOutletCollection(UIImageView) NSArray *imageViews;
// other properties
@end
Now in the interface builder you connect all the imageView's to this one property.
现在在界面构建器中，您将所有 imageView 连接到这一属性。
Now I just work with the imageViewscollection
现在我只处理imageViews集合
for (UIImageView *imageView in self.imageViews) {
imageView.image = someImage;
}
