[英]Swift - [NSObject : AnyObject]!' is not a subtype of 'Dictionary<String, AnyObject>
I got this error message 我收到此错误消息
[NSObject : AnyObject]!' is not a subtype of 'Dictionary<String, AnyObject>
My code 我的密码
self.client.getAccessToken(code, success: { (accessTokenData:Dictionary<String, AnyObject>) -> Void in // error here
var accessToken = accessTokenData["access_token"]
self.requestMeWithToken(accessToken)
}, failure: { (error:NSError!) -> Void in
println("Quering accessToken failed \(error)")
})
You can completely omit the type specification in your success completion. 您可以在成功完成时完全省略类型规范。 You might want something like this:
您可能想要这样的东西:
self.client.getAccessToken(code, success: { (accessTokenData) -> Void in // error here
if let dict = accessTokenData as? Dictionary<String, AnyObject> {
let accessToken = dict["access_token"]
self.requestMeWithToken(accessToken)
}
}, failure: { (error:NSError!) -> Void in
println("Quering accessToken failed \(error)")
})
This will only work if the accessTokenData can successfully be cast to a [String: AnyObject] dictionary, though. 但是,只有将accessTokenData成功地转换为[String:AnyObject]字典后,此方法才有效。
从错误消息中,您应该将Dictionary<String, AnyObject>
更改为[NSObject : AnyObject]
。
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