Question

我有一个NSArray（DataArray），其响应如下：

  {
"id": "17",
"item_name": "Chivito",
"item_price": "88.00",
"item_status": "Y",
"is_admin": "0",
"item_quantity": "120",
"status": 0
},
  {
"id": "14",
"item_name": "Doughnut",
"item_price": "50.00",
"item_status": "Y",
"is_admin": "0",
"item_quantity": "100",
"status": 1
},
  {
"id": "37",
"item_name": "Drink test ",
"item_price": "80.00",
"item_status": "Y",
"is_admin": "0",
"item_quantity": "12",
"status": 1
},

我必须创建另一个仅包含状态值为“1”的对象的过滤数组请帮我怎么做

Answer 1

试试这个

array.filter{(object) -> Bool in 
  if let object = object as NSDictionary {
    if let status = object["status"] as? Int {
      return status == 1
    }
  }
  return false
}

Answer 2

参考@Hady ans，在Objective-C中你可以这样做。如果有任何格式/语法问题，请原谅。我离开了我的系统。

NSMutableArry *filteredArr = [NSMutableArray alloc]init];

for(i=0;i<dataArray.count;i++)
{
   if([DataArray[i][@"status"] isEqualToNumber:[NSNumber numberWithInt: 1]])      //if(dataArray[i]["status"] == 1)
    {
      [filteredArr addObject:dataArray[i]];
     }
 }

希望它有所帮助..快乐编码!!

Answer 3

尝试谓词简单且循环次少。

NSPredicate * sizePredicate = [NSPredicate predicateWithFormat：@“状态   ==％@“，[NSNumber numberWithBool：YES]];

NSMutableArray * filteredSizeArray = [self.arrayFilter filteredArrayUsingPredicate：sizePredicate] .copy;

Answer 4

尝试：

<强>目的-C：

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF.status == %d",1];
    NSArray *filtered = [DataArray filteredArrayUsingPredicate:predicate];
    NSLog(@"RESULT: %@", filtered);

Answer 5

你可以试试这个：

NSPredicate *prediate = [NSPredicate predicateWithFormat:@"status == %d",1];
arrResult = [myArray filteredArrayUsingPredicate:prediate];

iOS：如何根据参数值

5 个答案: