Two UIPickerViews and different combinations lead to different photos - ios

Question

I am very new to swift Xcode and would like some help on UIPickerView.
I am trying to create two UIPickerViews, one called "From" and one called "To". "From" contains A, B and "To" contains B, C
Basically, if "From" is A and "To" is B then a Photo of car will appear on the same viewController.
if "From" is B and "To" is B then a photo of strawberry will appear and so on.
Can anyone give me any hints on how to do this? I've only managed to create the first UIPickerView.
import UIKit
class ViewController: UIViewController,UIPickerViewDelegate, UIPickerViewDataSource {
#IBOutlet var Picker1:UIPickerView!
var Array = ["A","B","C"]
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib
Picker1.delegate = self
Picker1.dataSource = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return Array[row]
}
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return Array.count
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
return 1
}
}

Answer 1

var savedVal1 = "" as String
var savedVal2 = "" as String
var array1 = NSArray()
var array2 = NSArray()
override func viewDidLoad() {
super.viewDidLoad()
Picker1.delegate = self
Picker1.dataSource = self
Picker1.tag = 1
Picker2.delegate = self
Picker2.dataSource = self
Picker2.tag = 2
}
func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if pickerView.tag == 1 {
return array1[row]
}
else{
return array2[row]
}
}
func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if pickerView.tag == 1 {
return array1.count
}
else{
return array2.count
}
}
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int{
return 1
}
func pickerView(pickerView: UIPickerView!, didSelectRow row: Int, inComponent component: Int){
if pickerView.tag == 1 {
savedVal1 = array1[row]
// compare 2 values here & then take steps which fulfill your criteria.
}
else{
savedVal2 = array2[row]
//compare 2 values here & then take steps which fulfill your criteria.
}
}
Hope it helps.

Answer 2

Where is your PickerView2?
#IBOutlet var Picker2:UIPickerView!
In viewdidload load as you done
Picker1.delegate = self
Picker1.dataSource = self
If you are using same data source or different please check the picker view in UIPickerViewDelegate, UIPickerViewDataSource method like
If (Picker1) {
} else if (Picker2) {
}