使用NSArray& amp;'模糊地使用'下标' JSON [英] Ambiguous use of 'subscript' with NSArray & JSON

问题描述

我已经查看了stackoverflow中的类似主题，但这些解决方案似乎都不适合我。

I have looked through the similar topics in stackoverflow but none of those solutions seem to work for me.

我有一个通过youtube API获取视频的应用。以下代码给出了错误。

I have an app that fetch video through youtube API . The following code is giving the error.

var arrayOfVideos = [Video]()

// I am getting the error for the following line and it says "Ambiguous use of 'subscript'.

for video in JSON["items"] as! NSArray {

    let videoObj = Video()
    videoObj.videoId = video.valueForKeyPath("snippet.resourceId.videoId") as! String
    videoObj.videoTitle = video.valueForKeyPath("snippet.title") as! String
    videoObj.videoDescription = video.valueForKeyPath("snippet.description") as! String
    videoObj.videoThumbnailUrl = video.valueForKeyPath("snippet.thumbnails.high.url") as! String


    arrayOfVideos.append(videoObj)

}

我还有一个名为Video的课程我在哪里定义Id，Title等...上面的代码在这里指的。

I have also a class called Video where I define the Id, Title and etc... The above code refers here.

class Video: NSObject {

    var videoId:String = ""
    var videoTitle:String = ""
    var videoDescription:String = ""
    var videoThumbnailUrl:String = ""

}

我试图解决通过检查下面的链接/建议，但它不适合我。我似乎找不到丢失的部分。

I have tried to solve it by checking the link/suggestions below but it didn't work for me. I cannot seem to find the missing part.

在Swift中模糊使用下标

推荐答案

这里的问题几乎肯定是你的 JSON 被定义为可以是数组或字典的类型。使用Xcode 7.1时，歧义强制执行得到了提升，因此您需要将其明确地转换为可以通过字符串下标的内容。这应该很好地排序你：

The problem here is almost certainly that your JSON is defined as a type that could be an array or a dictionary. With Xcode 7.1 ambiguity enforcement was levelled up, so you need to explicitly cast it to something that can be subscripted by a string. This should sort you nicely:

for video in (JSON as! NSDictionary)["items"] as! NSArray

这篇关于使用NSArray& amp;'模糊地使用'下标' JSON的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！