Question

有没有办法减少UserDefaults整数键值？

这是我的保存代码：

    var highScore = UserDefaults().integer(forKey: "HIGHSCORE")

如何将此值减少一个固定的整数？

那么减少20等？

Answer 1

首先，获取高分的旧值。然后，在最终保存新值之前进行算术运算：

double       value;
datetime     time;                      // - your values from file are here

int          shift  = iBarShift( _Symbol, 0, time );
ExtBufferCOT[shift] = value;            /* probably need to fill buffer
                                           of next candles too
                                           if your chart timeframe
                                           is smaller then frequency
                                           of observations in the file
                                           */

Answer 2

var highScore: Int {
  get {
     return Userdefaults.standard.integer(forKey: “highScore”)
   } set {
Userdefaults.standard.set(newValue forKey: “highScore”)
   }
}

可以通过

设置高分

highScore = 5

减少UserDefaults整数值 - Swift

2 个答案: