swift - 从另一个类重置扩展文件 userdefault

Question

将计数用户默认值重置为来自扩展方法之外的函数。在这种情况下，它的功能很简单。现在代码从 0 开始，除非我可以使用 func 来阻止代码上升。

extension UIViewController {
func updateVisitCount() {
    let key = String(describing: type(of: self))
    let count = UserDefaults.standard.value(forKey: key) as? Int ?? 0
    UserDefaults.standard.set(count + 1, forKey: key)
}}

 class easy: UIViewController {
@IBAction func delete() {
//reset let count to 0
}}

Answer 1

再做一个函数就是这样

extension UIViewController {
   func updateVisitCount() {
     let key = String(describing: type(of: self))
     let count = UserDefaults.standard.value(forKey: key) as? Int ?? 0
     UserDefaults.standard.set(count + 1, forKey: key)
   }
   func clearVisitCount() {
     let key = String(describing: type(of: self))
     UserDefaults.standard.set(0, forKey: key)
   }
}

class easy: UIViewController {
   @IBAction func delete() {
  //reset let count to 0
   self.clearVisitCount()
  }
}