different UIPivkerviews different number of components

Question

I'm trying to add different uipickerviews to one view, the problem is that that the number of components is set one for all picker views:

func numberOfComponents(in pickerView: UIPickerView) -> Int {
    return 2
}

Is it possible to set different number of components for different uipickerviews? The same question is for other functions, like number of rows

func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int)

and source with the components themselves:

func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int)

how can this distinguishing of uipickerviews be implemented in swift ?

Answer 1

Create IBOutlets for your pickerViews and then check the pickerview in the function before returning the value

@IBOutlet weak var picker1: UIPickerView!
@IBOutlet weak var picker2: UIPickerView!

func numberOfComponents(in pickerView: UIPickerView) -> Int {
    if pickerView == picker1 {
        return 2
    }
    else {
       return 1
    }
}

Edit: If you are creating your pickers programmatically, create properties for them

var picker1: UIPickerView?
var picker2: UIPickerView?

func createMyPickers() {
    picker1 = UIPickerView(...
    picker2 = UIPickerView(...
}

That way you can access your pickers in the delegate methods!