如何过滤task_status作为一个看到，被接受，被拒绝？

Question

这是我的json格式：

{
  "my_todo": [
    {
      "task_id": "71",
      "task_status": "Seen",
      "task_status_id": "2",
      "task_status_color": "warning",
      "task_sub": "Test",
      "task_content": "Testing",
      "task_from_id": "2",
      "task_from": "Aditi Sen",
      "task_lastdate": "2016-01-21"
    },
    {
      "task_id": "70",
      "task_status": "Accepted",
      "task_status_id": "4",
      "task_status_color": "success",
      "task_sub": "checking ",
      "task_content": "no of new task",
      "task_from_id": "2",
      "task_from": "Aditi Sen",
      "task_lastdate": "2016-01-19"
    },
    {
      "task_id": "69",
      "task_status": "Accepted",
      "task_status_id": "4",
      "task_status_color": "success",
      "task_sub": "checking ",
      "task_content": "no of new task",
      "task_from_id": "2",
      "task_from": "Aditi Sen",
      "task_lastdate": "2016-01-19"
    }
  ]
}

Answer 1

您可以使用NSPredicate。

NSPredicate *resultPredicate = [NSPredicate predicateWithFormat:@"task_status contains[cd] %@", @"seen"];
NSArray *filteredArray = [NSArray arrayWithArray:[jsonArray filteredArrayUsingPredicate:resultPredicate]];

我希望这有帮助！