我正在尝试通过NSArray内容对NSMutableArray进行排序。
例如,NSMutableArray(包含NSMutableDictionnary)的内容是:
{
detail = "Al's legend text";
image = "http://...";
main = "Al's main text;
section = "United States";
},
{
detail = "Yumi's legend text";
image = "http://...";
main = "Yumi's main text;
section = "Japan";
},
{
detail = "Enrico's legend text";
image = "http://...";
main = "Enrico's main text;
section = "Spain";
}, ...
目前,我知道如何按键,升序或降序对其进行排序,但我需要的是NSMutableArray按以下NSArray内容排序:
{ @"Japan",@"France",@"United States",@"Uruguay",@"Spain", ...}
如果有人可以帮我弄清楚。非常感谢!
答案 0 :(得分:0)
您想使用sortUsingSelector:nsmutablearray数组的这种方法要求您编写一个执行自定义比较的函数。查看文档,它将向您展示如何使用它。