How to create controls dynamically and aligned dynamically in swift 4? - ios

Question

I am working on the iOS application with Swift 4. In that project I have requirement like, I have to create controls dynamically along with the proper alignment.
For example, I have a button when I click on that button I am hitting the service from that I am getting json data which contains 4 objects. Based on that I have to create controls dynamically and dynamic alignment also should do. I tried lot of examples and tutorials. I didn’t find any solution.

Answer 1

You can use UITableView for that and here is example:
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var tableview: UITableView!
var nameArr :[String] = []
override func viewDidLoad() {
super.viewDidLoad()
tableview.delegate = self
tableview.dataSource = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
#IBAction func four_btn(_ sender: Any) {
nameArr.removeAll()
let nameData = ["First Name","Middle Name","Last Name","DOB"]
nameArr += nameData
tableview.reloadData()
}
#IBAction func eight_btn(_ sender: Any) {
nameArr.removeAll()
let nameData = ["Salutation","First Name","Middle Name","Last Name","DOB","Gender","Mobile","Email"]
nameArr += nameData
tableview.reloadData()
}
}
extension ViewController: UITableViewDataSource, UITableViewDelegate {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return nameArr.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) as! tableviewCells
cell.nameLabel.text = nameArr[indexPath.row]
return cell
}
}
class tableviewCells : UITableViewCell{
#IBOutlet weak var nameLabel: UILabel!
}

Answer 2

You can use UITableView for the same
Your scenario is like, it may possible that one user having 5 records however another may have 10 or 12 records means you've to work dynamically
if there are 2 buttons which calls 2 different APIs then just manage 2 different array like this
var arr1 = NSArray()
var arr2 = NSArray()
var isAPI1Called = Bool()
save response of both apis in different array
then just manage flag on button tap and in suitable view like this
#IBAction func btn1(_ sender: Any) {
isAPI1Called = true
self.API1Called()
}
#IBAction func btn2(_ sender: Any) {
isAPI1Called = false
self.API1Called()
}
Now use flag in UITableview Delegate like this
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if isAPI1Called
{
return arr1.count
}
else
{
return arr2.count
}
}
Load UITableviewCell as per your requirement if UI changed
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if isAPI1Called
{
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell1", for: indexPath) as! UITableviewCell
//Do your required stuff here
return cell
}
else
{
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell1", for: indexPath) as! UITableviewCell
//Do your required stuff here
return cell
}
}
Hope it will help you
Comment if not get any point