什么相当于Swift中的loadNibNamed

Question

我正在将我的Objective-C代码转换为Swift,并且想知道什么是与此代码相当的swift

[[[NSBundle mainBundle] loadNibNamed:@"Games-New" owner:nil  
options:nil] firstObject]; 

谢谢.

Answer 1

也许API已经改变了.第三个参数loadNibNamed不再是options,它是topLevelObjects.以下代码适用于我:

var objects: NSArray?
NSBundle.mainBundle().loadNibNamed("MyView", owner: self, topLevelObjects: &objects)

Answer 2

NSBundle.mainBundle().loadNibNamed("Games-New", owner: nil, options: nil)[0]

Answer 3

这是一个UIView扩展

public extension UIView {

    public class func instantiateFromNib<T: UIView>(viewType: T.Type) -> T {
        return NSBundle.mainBundle().loadNibNamed(String(describing: viewType), owner: nil, options: nil)?.first as! T
    }

    public class func instantiateFromNib() -> Self {
        return instantiateFromNib(self)
    }

}

用法

let awesomeView = AwesomeView.instantiateFromNib()

要么

let awesomeView = UIView.instantiateFromNib(AwesomeView.self)

Answer 4

斯威夫特3

name
nib文件的名称,不需要包含.nib扩展名.

owner
要指定为nib的File的Owner对象的对象.

options
包含打开nib文件时要使用的选项的字典.

首先,
如果你没有先定义,然后抓取所有视图..所以你需要抓住该集内的一个视图frist.

Bundle.main.loadNibNamed("yourUIView", owner: self, options: nil)?.first as! yourUIView

Answer 5

用它来加载你的笔尖.

let myView = NSBundle.mainBundle().loadNibNamed("MyView", owner: nil, options: nil)[0] as UIView

然后您可以像往常一样将其添加到视图中.

view.addSubview(myView)