我在Swift中遇到问题,我的代码工作正常。导入AVFoundation后,我收到ambiguous use of subscript
item
错误
我从这里找到了原因: Ambiguous use of ‘subscript’ error when importing AVFoundation
但是,我似乎无法根据那里提供的答案解决问题。
这是我的代码:
self.resultsVideoDurations_DICT = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as! Dictionary<NSObject, AnyObject>
let item = self.resultsVideoDurations_DICT["items"] as AnyObject!
let key = ( ( ( item[0] as! Dictionary<NSObject, AnyObject>)["snippet"] as! Dictionary<NSObject, AnyObject> )["publishedAt"] as? String)!
let value = ( ( item[0] as! Dictionary<NSObject, AnyObject>)["contentDetails"] as! Dictionary<NSObject, AnyObject> )["duration"] as? String
我试过以下(项目[0])!但这给了我警告:
来自&#39; AUAudioUnitBus&#39;不相关的类型&#39;字典&#39;总是失败
我该如何解决这个问题?感谢
答案 0 :(得分:0)
只需将item
转换为您要强制执行的类型:
let item = self.resultsVideoDurations_DICT["items"] as! [Dictionary<NSObject, AnyObject>]
let key = ( ( ( item[0])["snippet"] as! Dictionary<NSObject, AnyObject> )["publishedAt"] as? String)!
let value = ( ( item[0])["contentDetails"] as! Dictionary<NSObject, AnyObject> )["duration"] as? String
这似乎是在操场上清除它。