iOS：从笔尖加载自定义 UIView
我想创建自己的 UI 库，其中包含几个可重用的控件。一个非常简单的可能是 LabeledView，它将包含一个 UIView（很可能是一个 UIImageView）和下面的一个 UILabel。
----------------
| outer UIView |
| ------------ |
| | | |
| | UIView | |
| | | |
| ------------ |
| | UILabel | |
| ------------ |
----------------
如何在 Interface Builder 中实现这一点，并在创建外部 UIView 时“注入”内部 UIView 和 UILabel？我将外部 UIView 作为文件的所有者，将内部 UIView 和 UILabel 与 IBOutlet 连接到我的 LabeledView 中的属性。我现在想象一个像这样的 init 函数：
[[LabeledView alloc] initWithView:(UIView *)theView andLabel:(UILabel *)theLabel]
该方法应该从笔尖加载视图及其定义的布局，并将 theView 和 theLabel 插入其中。这不会太难，不是吗？我不明白...
I want to create my own UI library containing several reusable controls. One very simple one could be a LabeledView that will contain a UIView (most probably an UIImageView) and a UILabel below.
----------------
| outer UIView |
| ------------ |
| | | |
| | UIView | |
| | | |
| ------------ |
| | UILabel | |
| ------------ |
----------------
How can I implement this in Interface Builder and "inject" the inner UIView and UILabel when creating the outer UIView? I have the outer UIView as File's Owner and the inner UIView and the UILabel connected with IBOutlets to properties in my LabeledView. I am now imagining an init function like:
[[LabeledView alloc] initWithView:(UIView *)theView andLabel:(UILabel *)theLabel]
That method should load the View from the nib with its defined layout and insert theView and theLabel into it. This couldn't be to hard, no? I don't get it...
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。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（2）
如果您已经在笔尖中定义了视图等，那么您可以使用此处描述的
loadNibNamed:在运行时添加它们：http://developer.apple.com/library/ios/documentation/uikit/reference/NSBundle_UIKitAdditions/Introduction/Introduction.html这返回一个数组，第一个对象将是顶层笔尖中的对象 - 上例中的容器视图。
从 nib 加载内容时，不要使用 alloc/init，因为 nib 本身包含对象的序列化版本，该版本已经实例化。
If you've defined the views etc in a nib then you can add them at runtime using
loadNibNamed:described here : http://developer.apple.com/library/ios/documentation/uikit/reference/NSBundle_UIKitAdditions/Introduction/Introduction.htmlThis returns an array, the first object will be the top level object in the nib - your container view in the example above.
You dont use alloc/init when loading things from a nib, because the nib itself contains a serialised version of the object, which is already instantiated.
这可能会帮助您创建具有自己的 IBOutlet 和方法的独立 UIView 子类。此外，它们将独立于“文件所有者”，意味着您可以在代码中的任何位置使用它们。
按照以下步骤
将它们与各自的视图连接。
在 CustomView 类的 .m 文件中，重写 init 方法，如下所示
-(自定义视图*)初始化{
CustomView 结果 = nil;
NSArray 元素 = [[NSBundle mainBundle] loadNibNamed: NSStringFromClass([self class]) 所有者:self 选项: nil];
for (元素中的 id anObject)
{
if ([anObject isKindOfClass:[自身类]])
{
结果 = 一个对象；
休息;
}
}
返回结果；
}
This might help you, to create independent UIView subclass with their own
IBOutlet, and methods. Also they will be independent of `File's Owner", means you can use them anywhere in your code.Follow these steps
Connection Inspector. Here you will all your IBOutlets which you define in .h fileConnect them with their respective view.
In .m file of your CustomView class, override the init method as follow
-(CustomView *) init{
CustomView result = nil;
NSArray elements = [[NSBundle mainBundle] loadNibNamed: NSStringFromClass([self class]) owner:self options: nil];
for (id anObject in elements)
{
if ([anObject isKindOfClass:[self class]])
{
result = anObject;
break;
}
}
return result;
}
Now when you want to load your CustomView, use the following line of code [[CustomView alloc] init];