相关疑难解决方法(0)

所以我试图迭代一个 NSArray。我的 NSArray 是一个字符串数组的数组。这是前 1.5 个元素的复制粘贴

(
    (
    "Tater Tot Nachos",
    "Fried Feta",
    "The Ultimate Feta Bread",
    "Cheese Bread",
    "Aubrees Bread",
    "The Wings!",
    "Coconut Grove Chicken Sicks",
    "Far East Wings",
    "Bacon Brussels Sprouts"
),
    (
    "Shaved Brussels Sprout Salad",
    "Greek Salad",
    "Coronado Cobb Salad",
    "Harvest Salad",

这是让我头疼的功能

 func createMenu() {
    if let list = cellDescripters {
        for(index, item) in list.enumerated() {
            for food in item {
                //DO SOMETHING WITH "FOOD"
            }

        }
    }
}

' cellDescripters ' 是一个全局变量，它是我在顶部概述的数组，基本上是一个字符串数组数组。

当我打印“ item …

我正在尝试对Array类型进行扩展,以便能够使用2D数组.事实上,我在Objective-C中做到了这一点,下面的代码就像一个魅力.但我真的陷入了斯威夫特.

extension Array {
mutating func addObject(anObject : AnyObject, toSubarrayAtIndex idx : Int) {
    while self.count <= idx {
        let newSubArray = [AnyObject]()
        self.append(newSubArray)
    }

    var subArray = self[idx] as! [AnyObject]
    subArray.append(anObject)
}

func objectAtIndexPath(indexPath : NSIndexPath) -> AnyObject {
    let subArray = self[indexPath.section] as! Array
    return subArray[indexPath.row] as! AnyObject
}

}

无论我做什么,我都会收到代码示例中提到的错误.我很感激任何帮助.谢谢.

更新感谢Roman Sausarnes

正确的代码是这样的:

extension Array where Element: _ArrayType, Element.Generator.Element: AnyObject {
mutating func addObject(anObject : Element.Generator.Element, toSubarrayAtIndex idx : Int) {
    while self.count <= idx {
        let …