How to populate table view with large data - ios

Question

I'm trying to populate a table view with a large data. However, my tableview can only display 20 string objects. How do I simply display the rest of the data and update the table view each time the user scrolls to the end?
var people = [People]()
let configureSession = URLSessionConfiguration.default
let session = URLSession(configuration: configure)
//Setup the Api Key...
let apiKey = "https://congress.api.sunlightfoundation.com/legislators?apikey=(//Api Key here...)"
if error != nil{
print("ERROR: \(error?.localizedDescription)")
return
} else if let jsonData = data {
do{
let parsedJSON = try JSONSerialization.jsonObject(with: jsonData, options: []) as! [String: AnyObject]
guard let results = parsedJSON["results"] as? [[String: AnyObject]] else {return}
for result in results{
let name = myClass()
name.firstName = result["first_name"] as! String
self.people.append(name)
}
DispatchQueue.main.async {
//Reload the data
self.table.reloadData()
}
} catch let error as NSError{
print(error)
}
}
}).resume()
}
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return people.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell")
cell.textLabel?.text = people[indexPath.row] //Only displays 20... Need to display more!
return cell!
}
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
//Code to display the rest of the data goes here?
}

Answer 1

Make sure you return the correct value in numberOfRowsInSection method:
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return myLargeData.count
}
With provided myLargeData array there should be 30 rows in your tableView

Answer 2

You can use number of rows in section delegate of table view delegate to handle the more data in array.
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return yourarray.count
}