从另一个 class 重置扩展文件 userdefualt

Question

将用户默认计数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

再做一个功能就是这样

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()
  }
}

从另一个 class 重置扩展文件 userdefualt

reset extension file userdefualt from another class

swift

extension-methods

reset

ibaction

userdefaults