Accessing information from another viewController - swift

Question

I am new to swift and I am trying to repopulate a pickerview using an array of names from another class. I have this class Notes that creates notes and each note has a name/title, I am trying to access those names/title and put them in pickerview, can anyone help me.
import UIKit
var allNotes: [Note] = []
var currentNoteindex: Int = -1
var noteTable: UITableView?
let kAllNotes:String = "notes"
class Note: NSObject
{
var date:String
var note:String
var name:String
override init()
{
date = NSDate().description
name = ""
note = ""
}
func dictionary() -> NSDictionary
{
return ["note": note, "date": date, "name": name]
}
I have two different pickerview and one works it's just the one with the names doesn't work.
override func viewDidLoad()
{
super.viewDidLoad()
fileNamePicker.dataSource = self
fileNamePicker.delegate = self
gradePicker.dataSource = self
gradePicker.delegate = self
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int
{
if pickerView == gradePicker
{
return grades.count
}
else
{
return allNotes.count
}
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String?
{
if pickerView == gradePicker
{
return grades[row]
}
else
{
//This is where the Problem is, but I don't know how to fix it.
let nameFiles = allNotes[currentNoteindex].name
return nameFiles[row]
}
}
func numberOfComponents(in pickerView: UIPickerView) -> Int
{
return 1
}

Answer 1

nameFiles is accessing a name from a note.
nameFiles[row] doesn't work because nameFiles is not an array.
If you want to return a string, simply do return nameFiles. Check first to make sure that nameFiles actually has a value, though!

Answer 2

Looks like your allNotes array is empty. You have initilaize but does not seems to append the object. Create initiliaze method inside Note class
init(_ date: String, note: String, name: String) {
self.date = date
self.note = note
self.name = name
}
In your viewcontroller class try appending like this. Now below you can access inside picker view method:-
//You can append by doinf iteration based on your data
allNotes.append(Note(date: "value1", note: "Value", name: "name"))