ios – 保存到UserDefaults时,应用程序始终崩溃

extension UserDefaults {

    static let shared = UserDefaults(suiteName: SharedGroupName)!

    static func set(object: Any, forKey key: String) {

        shared.set(object, forKey: key)
        shared.synchronize()
    }
}

UserDefaults(suiteName: SharedGroupName)!.set(object, forKey: key)

它可能会有所作为.而且,如其中一条评论中所述,不需要“同步”.