我如何排序NSMutableArray iphone？

Question

我有一个场景，应用程序从json php中检索信息到NSMutableArray。我的问题如下：我如何通过“时间”字段对元素进行排序？另外我怎样才能只显示“星期一”为“星期一”的元素？ （if语句会是什么样子？）。感谢您的帮助。

此外，NSMutableArray中的信息如下所示;

Array: (
      { 
      Code = 2COS402; 
      Core = Yes; 
      Credit = 15; 
      Day = Monday; 
      Facilities = Full; 
      Level = 4; 
      Module = "Introduction to Computer Programming"; 
      "Room_Empty" = Yes; 
      Teacher = "Mark James"; 
      Time = "10:45"; 
      id = 1; 
     }, 
      { 
      Code = 2GDP401; 
      Core = Yes; 
      Credit = 15; 
      Day = Monday; 
      Facilities = Full; 
      Level = 4; 
      Module = "Fundamentals of Interactive Games"; 
      "Room_Empty" = No; 
      Teacher = "Will Smith"; 
      Time = "09:00"; 
      id = 4; 
     }, 
      { 
      Code = 2GDP501; 
      Core = Yes; 
      Credit = 15; 
      Day = Monday; 
      Facilities = Full; 
      Level = 4; 
      Module = "Games Play Design"; 
      "Room_Empty" = Yes; 
      Teacher = "Frank Sinatra"; 
      Time = "15:00"; 
      id = 6; 
     } 
    ) 

Answer 1

可以检查NSMutableArraysortUsingComparator:或sortUsingSelector:方法。当然，你需要定义你的自定义NSComparator或者实现一个自定义方法来做到这一点。