NSMutableArray 排序

NSMutableArray *array=[[NSMutableArray alloc] initWithCapacity:11]; 

    

    NSMutableDictionary *dir6=[[NSMutableDictionary alloc] initWithCapacity:1]; 

    [dir6 setObject:@"曹磊" forKey:@"FriendName"]; 

    [dir6 setObject:@"曹磊" forKey:@"FriendID"]; 

    [array addObject:dir6]; 

    

    

    NSMutableDictionary *dir=[[NSMutableDictionary alloc] initWithCapacity:1]; 

    [dir setObject:@"王均" forKey:@"FriendName"]; 

    [dir setObject:@"曹磊" forKey:@"FriendID"]; 

    [array addObject:dir]; 

   

    

    NSMutableDictionary *dir1=[[NSMutableDictionary alloc] initWithCapacity:1]; 

    [dir1 setObject:@"111" forKey:@"FriendName"]; 

    [dir1 setObject:@"曹磊" forKey:@"FriendID"]; 

    [array addObject:dir1]; 

    

    NSMutableDictionary *dir2=[[NSMutableDictionary alloc] initWithCapacity:1]; 

    [dir2 setObject:@"王興朝" forKey:@"FriendName"]; 

    [dir2 setObject:@"曹磊" forKey:@"FriendID"]; 

    [array addObject:dir2]; 

  

    

    NSMutableDictionary *dir3=[[NSMutableDictionary alloc] initWithCapacity:1]; 

    [dir3 setObject:@"wangjun" forKey:@"FriendName"]; 

    [dir3 setObject:@"曹磊" forKey:@"FriendID"]; 

    [array addObject:dir3]; 

   

    

    NSMutableDictionary *dir4=[[NSMutableDictionary alloc] initWithCapacity:1]; 

    [dir4 setObject:@"apk" forKey:@"FriendName"]; 

    [dir4 setObject:@"曹磊" forKey:@"FriendID"]; 

    [array addObject:dir4]; 

  

    

    

    

    NSLog(@">>>>>>排序前>>>>>>>>"); 

    for (int i=0; i<[array count]; i++) { 

        NSLog(@"%@",[[array objectAtIndex:i] objectForKey:@"FriendName"]); 

    } 

    

    NSSortDescriptor *sorter = [[NSSortDescriptor alloc] initWithKey:@"FriendName" ascending:YES]; 

    NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:&sorter count:1]; 

    NSArray *sortedArray = [array sortedArrayUsingDescriptors:sortDescriptors];

    

    

    

    NSLog(@"\n\n\n\n\n>>>>>>排序後>>>>>>>>"); 

    for (int i=0; i<[sortedArray count]; i++) { 

        NSLog(@"%@",[[sortedArray objectAtIndex:i] objectForKey:@"FriendName"]); 

    }