[英]How to use UserDefaults SwiftUI?
我正在嘗試創建一個text field
,其中的文本將成為一個var
和一個user default
,它將一直顯示。
我嘗試使它等於我在該部分中設置的變量。 但我真的不知道我在做什么。
@State private var Name = UserDefaults.standard.string(forKey: "name")
Section{
TextField("Name", text: $Name)
UserDefaults.standard.set($Name, forKey: "name")
}
結構默認值{
static let (nameKey, addressKey) = ("name", "address")
static let userSessionKey = "com.save.usersession"
private static let userDefault = UserDefaults.standard
/**
- Description - It's using for the passing and fetching
user values from the UserDefaults.
*/
struct UserDetails {
let name: String
let address: String
init(_ json: [String: String]) {
self.name = json[nameKey] ?? ""
self.address = json[addressKey] ?? ""
}
}
/**
- Description - Saving user details
- Inputs - name `String` & address `String`
*/
static func save(_ name: String, address: String){
userDefault.set([nameKey: name, addressKey: address],
forKey: userSessionKey)
}
/**
- Description - Fetching Values via Model `UserDetails` you can use it based on your uses.
- Output - `UserDetails` model
*/
static func getNameAndAddress()-> UserDetails {
return UserDetails((userDefault.value(forKey: userSessionKey) as? [String: String]) ?? [:])
}
/**
- Description - Clearing user details for the user key `com.save.usersession`
*/
static func clearUserData(){
userDefault.removeObject(forKey: userSessionKey)
}
}
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