Can't figure out how to do automatic sorting addresses near the user. I can not understand where to start and how to write code.
I have addresses in my firebase. Addresses have type string (not latitude / longitude). Example:
"Москва, Электрозаводская, 21"
"Москва, Арбат, Староконюшенный переулок, дом 43"
"Москва, улица 1-я Бухвостова, дом 12/11, корпус 53"
I know what need use query from firebase, but how use query, i don't understand now.
It's my code:
class PhotoStudiosViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, UIScrollViewDelegate {
@IBOutlet weak var tableView: UITableView!
var theStudios: [Studio] = []
var studiosRef: DatabaseReference!
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(true)
tableView.estimatedRowHeight = 475
tableView.rowHeight = UITableViewAutomaticDimension
loadDataFromFirebase()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return theStudios.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "tableCell", for: indexPath) as! PhotoStudiosTableViewCell
cell.addressLabel.text = theStudios[indexPath.row].studioAddress
return cell
}
func loadDataFromFirebase() {
studiosRef = Database.database().reference(withPath: "Addresses")
let time = DispatchTime.now() + 0.5
studiosRef.observe(.value, with: { (snapshot) in
DispatchQueue.main.asyncAfter(deadline: time) {
for imageSnap in snapshot.children {
let studioObj = Studio(snapshot: imageSnap as! DataSnapshot)
self.theStudios.append(studioObj)
}
self.tableView.reloadData()
}
})
}
class Studio {
var ref: DatabaseReference!
var studioAddress: String = ""
init(snapshot: DataSnapshot) {
ref = snapshot.ref
studioName = snapshot.key
let value = snapshot.value as! NSDictionary
studioAddress = value["address"] as? String ?? "---"
}
}
How to make an automatic sorting addresses near the user using data from firebase?
