Swift 3.0：数据转 JSON [String : Any]
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Swift 3.0: Data to JSON [String : Any]
提问by Andrea Miotto
Evening, I'm trying to creating an APIClient, but I'm having a problem with a warning:
APIClient.swift:53:81: Cast from 'Data' to unrelated type '[String : Any]' always fails
晚上，我正在尝试创建一个 APIClient，但我遇到了警告问题：
APIClient.swift:53:81: Cast from 'Data' to unrelated type '[String : Any]' always fails
In this code I'm trying to convert Datainto JSONas a dictionary [String : Any].
在这段代码中，我试图将Data转换为JSON作为字典[String : Any]。
I guess the compiler can't know if this cast could or could not be possible so it throws the error, but I'm pretty sure it will work. So how can I avoid this warning or how can I write safer code?
我猜编译器不知道这个转换是否可能，所以它会抛出错误，但我很确定它会起作用。那么我怎样才能避免这个警告或者我怎样才能编写更安全的代码呢？
case 200:
do {
let json = try JSONSerialization.data(withJSONObject: data!, options: []) as? [String : Any]
completion(json, HTTPResponse, nil)
} catch let error {
completion(nil, HTTPResponse, error)
}
