Unable to get JSON response selected city id from dropdown in swift - arrays

Question

JSON response like this
{
"result": {
"cities": [
{
"id": 1,
"city": "North and Middle Andaman",
"state_id": 32
},
{
"id": 2,
"city": "South Andaman",
"state_id": 32
},
{
"id": 3,
"city": "Nicobar",
"state_id": 32
},
{
"id": 330,
"city": "Mumbai suburban",
"state_id": 12
},
I am showing cities in textfield with TextFieldEditingChanged and dropdown
code: with this code i can show city list in dropdown and got selected city in textfield but i need selected city id as well.. which i am unable to get
if i print print(item, self?.cityId). here Mumbai suburban id is 330 but got dropdown index 2... how do i get selected city id from dropdown, please guide me
o/p
Mumbai suburban Optional(2)
#IBAction func cityTextFieldEditingChanged(_ sender: UITextField) {
var tempArray = [String]()
if sender.text?.count != 0 {
for eachData in cityResultDict?.cities ?? []{
if let wordToSearch = sender.text{
let range = eachData.city?.lowercased().range(of: wordToSearch, options: .caseInsensitive, range: nil, locale: nil)
if range != nil {
tempArray.append(eachData.city ?? "")
}
}
}
}
showDropDown(with: tempArray, from: sender) { [weak self] (item, index) in
self?.locationTextField.text = item
self?.cityId = cityResultDict?.cities?[index].id ?? 0
print(item, self?.cityId)
}
}

Answer 1

if i print print(item, self?.cityId). here Mumbai suburban id is 330 but got dropdown index 2..
Because you are making a new array which is tempArray matching with your search condition when you showDropDown.
I don't know how you implement your showDropDown. But this is a key for your code
Code will be like this
var tempArray = [String]()
var tempCityId = [String]() // I not recommend slipt like this which one is for name city and one is for your id
if sender.text?.count != 0 {
for eachData in cityResultDict?.cities ?? []{
if let wordToSearch = sender.text{
let range = eachData.city?.lowercased().range(of: wordToSearch, options: .caseInsensitive, range: nil, locale: nil)
if range != nil {
tempArray.append(eachData.city ?? "")
// make new array to store your cityId too
tempId.append(eachData.cityId ?? "")
}
}
}
}
showDropDown(with: tempArray, from: sender) { [weak self] (item, index) in
self?.locationTextField.text = item
self?.cityId = tempCityId[index].id ?? 0 // get the id form your tempCityId too
print(item, self?.cityId)
}
Notice: This way I don't recommend. You can make a new struct which store all your reaching City or a struct only store your cityName and cityId which easier for you.
I build this way just for easier for you to realize and because I don't know how you build your showDropDown