I've parsed a JSON from YouTube and not every item in the array necessarily have certain Key:Value pairs, thus I get a fatal error. My only solution has been to comment out certain key:values from my Model. However I'd like a more appropriate solution but I'm not sure the right way to dynamically guard for missing key:values.
有谁能帮我在swiftui中实现这一点的方法吗.
First, decoding a JSON is not specific to SwiftUI, the only time SwiftUI is used is when interacting with the User Interface.
You can use something like below in a custom initializer for your struct or class
init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
latitude = try values.decodeIfPresent(Double.self, forKey: .latitude)
}
请求类型的解码值，如果解码器没有与给定密钥关联的条目，或者如果该值为空值，则为nil.
https://developer.apple.com/documentation/swift/keyeddecodingcontainer/2893445-decodeifpresent
Below is the Apple documentation on decoding and encoding custom types