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Android

Posted by Evan Dix
Evan Dix
1,641 Points

Seeing if text put into an edit text is equal to the name of a person in a JSONArray.

I have an jsonarray of names and an Id for each name. For example 

[{ "Name":"Evan" , "id":1},{"Name":"Aaron","id":2}ect....]

if i have an edit text, that the user types in a name. How can i create a loop to pass through the array and return the id of the person's name that they typed in if there is a match.

so if they type in Evan into the edit text. i want the app to Log the id: 1

1 Answer

elfproductivity
elfproductivity
10,489 Points 
String name = yourEditTextVariableName.getText().toString();
int id = -1;  //some untaken value by the id to check against later (in case we didn't find it), if there's no such value, use a boolean flag
for (JSONObject person : JSONArray) {   //loop through the array
   if (person.getString("Name").equals(name)) {   //if this person has the name entered by the user
      id = person.getInt("id");
   }
}

if (id == -1) {
//not found
} else {
//do something with id
}

This is assuming that the "Name" field values will be unique, if not, it will just give you the ID of the last person with this name in the array. An alternative would be to create an a list object to add each person's ID into.

Evan Dix
Evan Dix
1,641 Points

Thank you! this will help me get on the right track