ios - 如何对包含NSDates的数组进行排序

Question

您能帮我对包含NSDate的数组进行排序(升序)吗？

NSMutableArray *tempArray = [[NSMutableArray alloc]init];

[tempArray addObject: NSDate1];
[tempArray addObject: NSDate2];
[tempArray addObject: NSDate3];
[tempArray addObject: NSDate4];

Answer 1

使用以下代码:

  [your array sortUsingComparator:
  ^NSComparisonResult(id obj1, id obj2){

         obj1 *o1 = (obj1*)obj1;
         obj2 *o2 = (obj2*)obj2;
         if (o1.personAge > 02.personAge) {
            return (NSComparisonResult)NSOrderedDescending;
        }


        return (NSComparisonResult)NSOrderedSame;
}

];