[Swift] Userdefaults+Extension (デフォルト値の考慮)

Userdefaults+Extension.swift

extension UserDefaults {
    
    //Get (デフォルト値あり)
    internal static func get<T>(key: String, defaultValue: T) -> T {
        
        let userdefaults = UserDefaults.standard
        
        if userdefaults.object(forKey: key) != nil {
            
            //Float
            if (type(of: T.self) == type(of: Float.self)) {
                let value = userdefaults.float(forKey: key)
                return value as! T
            }
            
            //Double
            if (type(of: T.self) == type(of: Double.self)) {
                let value = userdefaults.double(forKey: key)
                return value as! T
            }
            
            //Int
            if (type(of: T.self) == type(of: Int.self)) {
                let value = userdefaults.integer(forKey: key)
                return value as! T
            }
            
            //Bool
            if (type(of: T.self) == type(of: Bool.self)) {
                let value = userdefaults.bool(forKey: key)
                return value as! T
            }
            
            //String
            if (type(of: T.self) == type(of: String.self)) {
                let value = userdefaults.string(forKey: key)
                return value as! T
            }
        }
        
        return defaultValue
    }
    
    //Get (デフォルト値なし)
    internal static func get<T>(key: String) -> T? {
        
        let userdefaults = UserDefaults.standard
        
        //Logger.log(message: String("Setting.get T.type: \(type(of: T.self))"))
        if UserDefaults.standard.object(forKey: key) != nil {
            
            //Float
            if (type(of: T.self) == type(of: Float.self)) {
                let value = userdefaults.float(forKey: key)
                return value as? T
            }
            
            //Double
            if (type(of: T.self) == type(of: Double.self)) {
                let value = userdefaults.double(forKey: key)
                return value as? T
            }
            
            //Int
            if (type(of: T.self) == type(of: Int.self)) {
                let value = userdefaults.integer(forKey: key)
                return value as? T
            }
            
            //Bool
            if (type(of: T.self) == type(of: Bool.self)) {
                let value = userdefaults.bool(forKey: key)
                return value as? T
            }
            
            //String
            if (type(of: T.self) == type(of: String.self)) {
                let value = userdefaults.string(forKey: key)
                return value as? T
            }
        }
        
        return nil
    }
    
    
    //Set
    internal static func set<T>(key: String, value: T) {
        
        let userdefaults = UserDefaults.standard
        
        userdefaults.set(value, forKey: key)
    }
    
    
    //Remove
    internal static func remove(key: String) {
        
        let userdefaults = UserDefaults.standard
        
        if (userdefaults.object(forKey: key) != nil) {
            userdefaults.removeObject(forKey: key)
        }
    }
}