我如何排序NSMutableArray iphone？

Question

我有一個場景，應用程序從json php中檢索信息到NSMutableArray。我的問題如下：我如何通過「時間」字段對元素進行排序？另外我怎樣才能只顯示「星期一」爲「星期一」的元素？ （if語句會是什麼樣子？）。感謝您的幫助。

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

可以檢查NSMutableArraysortUsingComparator:或sortUsingSelector:方法。當然，你需要定義你的自定義NSComparator或者實現一個自定義方法來做到這一點。