Changed TableViewCell with XMSegmentedControl - ios

Question

I want to changed tableviewcell's data with XMSegmentedControl(https://github.com/xaviermerino/XMSegmentedControl),
and I using switch in the
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
,but it's always print
fatal error: unexpectedly found nil while unwrapping an Optional value**,and say *segmentedControl1 is nil.
let tin = ["1","2","3","4"]
let how = ["one","two","three","four"]
#IBOutlet weak var tableView: UITableView!
#IBOutlet weak var segmentedControl1: XMSegmentedControl!
override func viewDidLoad() {
super.viewDidLoad()
let segmentedControl3 = XMSegmentedControl(frame: CGRect(x: 0, y: 70, width: self.view.frame.width, height: 44), segmentTitle: ["Hello", "World", "Three"], selectedItemHighlightStyle: XMSelectedItemHighlightStyle.topEdge)
segmentedControl3.backgroundColor = UIColor(red: 22/255, green: 150/255, blue: 122/255, alpha: 1)
segmentedControl3.highlightColor = UIColor(red: 25/255, green: 180/255, blue: 145/255, alpha: 1)
segmentedControl3.tint = UIColor.white
segmentedControl3.highlightTint = UIColor.black
self.view.addSubview(segmentedControl3)
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
var returnValue = 0
switch(segmentedControl1.selectedSegment)
{
case 0 :
returnValue = tin.count
case 1 :
returnValue = how.count
default :
break
}
return returnValue
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
switch(segmentedControl1.selectedSegment)
{
case 0 :
cell.textLabel?.text = tin[indexPath.row]
case 1 :
cell.textLabel?.text = how[indexPath.row]
default :
break
}
return cell
}
Can anyone help me solve this problem?
Thanks!

Answer 1

replace your viewDidLoad() by my code.
override func viewDidLoad() {
super.viewDidLoad()
segmentedControl1 = XMSegmentedControl(frame: CGRect(x: 0, y: 70, width: self.view.frame.width, height: 44), segmentTitle: ["Hello", "World", "Three"], selectedItemHighlightStyle: XMSelectedItemHighlightStyle.topEdge)
segmentedControl1.backgroundColor = UIColor(red: 22/255, green: 150/255, blue: 122/255, alpha: 1)
segmentedControl1.highlightColor = UIColor(red: 25/255, green: 180/255, blue: 145/255, alpha: 1)
segmentedControl1.tint = UIColor.white
segmentedControl1.highlightTint = UIColor.black
self.view.addSubview(segmentedControl1)
}
put into valuechenged method of segmentControl
DispatchQueue.main.async{
self.ttblView.reloadData()
}
You have applied wrong segmentControl . You put value in segmentedControl3 so segmentedControl1 gives nil .