在iOS中增加选取器的大小-Swift 4

Question

I have an SB that look like this

It yields this result

I'm trying to increase the font of my picker.

What would be the best way to about this ?

Is this something that I can achieve via the storyboard settings?

I have this

extension ScreenTimeViewController : UIPickerViewDelegate, UIPickerViewDataSource {

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

    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return component == 0 ? 25 : 61
    }

    func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {

        if view != nil {
            view?.layer.backgroundColor = UIColor.white.cgColor
            view?.layer.cornerRadius = (view?.bounds.width)! / 2

            return view!
        } else {

            let newView = UIView(frame: CGRect(x: 0, y: 0, width: 110, height: 40))

            newView.layer.masksToBounds = false
            newView.layer.backgroundColor = UIColor.white.cgColor
            newView.layer.cornerRadius = newView.bounds.width / 2

            switch component {
            case 0:
                addLabel(in: newView, at: CGPoint(x: newView.bounds.minX + 20, y: newView.bounds.midY), text: "\(row)", color: .black)
            case 1:
                addLabel(in: newView, at: CGPoint(x: newView.bounds.minX + 20, y: newView.bounds.midY), text: "\(row)", color: .black)
            default:
                break
            }

            return newView
        }

    }

    func pickerView(_ pickerView: UIPickerView, widthForComponent component: Int) -> CGFloat {
        return 110
    }

    func pickerView(_ pickerView: UIPickerView, rowHeightForComponent component: Int) -> CGFloat {
        return 50
    }


}

Answer 1

Although you can customize the color of the picker to some extent but for font no possible option is available if you want a highly customizable picker refer to github projects

https://github.com/mithyer/DatePicker-Swift

https://github.com/itsmeichigo/DateTimePicker