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iosswiftuipickerview

changing font size and style in picker view

How can I change font style and size of picker view? I don't see an option in the picker view settings. Can you set it programmatically? I'm using swift 3 and xcode 8.2.

Solution

  • You can change font style and size in function: 

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

    For example:

    let pickerDataSource: [String] = (1...10).map { "Option " + String(format: "%2d", $0)}

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

    label.textColor = .red
    label.textAlignment = .center
    label.font = UIFont.systemFont(ofSize: 20)

    label.text = pickerDataSource[row]

    return label
  }
}