如何从 Volley JSON 响应中删除用户？

Question

i want to remove specific user with its uniquid i have parse json_encode($data); from volley response:

this is my response:

[
     {
        "uniqid":"h5faweWtd", 
        "name":"Test_1", 
        "address":"tst", 
        "email":"ru_tst@tst.cc", 
        "mobile":"12345",
        "city":"indd"
},{
    "uniqid":"h5Wtd", 
    "name":"Test_2", 
    "address":"tst", 
    "email":"ru_tst@tst.cc", 
    "mobile":"1235945",
    "city":"indd4"
},{
    "uniqid":"h5Wtd25", 
    "name":"Test_3", 
    "address":"tdsdsst", 
    "email":"rsfu_tst@tsfst.cc", 
    "mobile":"1263345",
    "city":"indd9"
  }
    ]

I want to remove specific user with its uniquid

I'll easily do it in php with the help of this code:

foreach ($UserList as $key => $value) {
   if (in_array('uniqid', $uniqid_To_Remove)) {
    unset($UserList[$key]);
   }
  }
$UserList = json_encode($UserList);

echo $UserList;

but i want to get response and save it to shared preferences when internet is available and when internet is not available: then i want to get response data from shared preferences and remove specific user from its uniqid. how to do it in android java?

I am trying to delete an entire user. the problem is that the object position is not static, it can be anywhere in the array. the only thing that is static that i have is uniqid .

Answer 1

To filter a JsonArray, you could try this:

       try {
            List<JSONObject> filtered = new ArrayList<>();
            JSONArray array = new JSONArray(); //Replace array with Response array

            for (int i = 0; i < array.length(); i++) {
                JSONObject obj = array.getJSONObject(i);
                String id = obj.getString("uniqid");
                if (!id.equals("h5Wtd25")) { //Replace with your own filtered rule
                    filtered.add(obj); 
                }
            }
        } catch (JSONException e) {

        }

Answer 2

Assumed that you have the list of User , you can use filter to get your new list which remove the user with specific id

private List<User> filterUserBasedOnId(List<User> users, String id){
    return users.stream()
                .filter( user -> !user.getUniqid().equals(id))
                .collect(Collectors.toList());
}

Edit: You can have User class like this

public class User {
  private String uniqid;
  private String name;
  private String address;
  private String email;
  private String mobile;
  private String city;
  // getter, setter
}

To get the List<User> , you need to parse it from json. You can refer to this