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Swift/Win32

PickerViewDelegate

The delegate of a PickerView object must adopt this protocol and implement at least some of its methods to provide the picker view with the data it needs to construct itself.

public protocol PickerViewDelegate: AnyObject

Inheritance

AnyObject

Default Implementations

pickerView(_:rowHeightForComponent:) 

public func pickerView(_ pickerView: PickerView,
                         rowHeightForComponent component: Int) -> Double

pickerView(_:widthForComponent:) 

public func pickerView(_ pickerView: PickerView,
                         widthForComponent component: Int) -> Double

pickerView(_:titleForRow:forComponent:) 

public func pickerView(_ pickerView: PickerView, titleForRow row: Int,
                         forComponent component: Int) -> String?

pickerView(_:attributedTitleForRow:forComponent:) 

public func pickerView(_ pickerView: PickerView,
                         attributedTitleForRow row: Int,
                         forComponent component: Int) -> NSAttributedString?

pickerView(_:viewForRow:forComponent:reusing:) 

public func pickerView(_ pickerView: PickerView, viewForRow row: Int,
                         forComponent component: Int, reusing view: View?)
      -> View

pickerView(_:didSelectRow:inComponent:) 

public func pickerView(_ pickerView: PickerView, didSelectRow row: Int,
                         inComponent component: Int)

Requirements

pickerView(_:​rowHeightForComponent:​)

Called by the picker view when it needs the row height to use for drawing row content.

func pickerView(_ pickerView: PickerView,
                  rowHeightForComponent component: Int) -> Double

pickerView(_:​widthForComponent:​)

Called by the picker view when it needs the row width to use for drawing row content.

func pickerView(_ pickerView: PickerView,
                  widthForComponent component: Int) -> Double

pickerView(_:​titleForRow:​forComponent:​)

Called by the picker view when it needs the title to use for a given row in a given component.

func pickerView(_ pickerView: PickerView, titleForRow row: Int,
                  forComponent component: Int) -> String?

pickerView(_:​attributedTitleForRow:​forComponent:​)

Called by the picker view when it needs the styled title to use for a given row in a given component.

func pickerView(_ pickerView: PickerView, attributedTitleForRow row: Int,
                  forComponent component: Int) -> NSAttributedString?

pickerView(_:​viewForRow:​forComponent:​reusing:​)

Called by the picker view when it needs the view to use for a given row in a given component.

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

pickerView(_:​didSelectRow:​inComponent:​)

Called by the picker view when the user selects a row in a component.

func pickerView(_ pickerView: PickerView, didSelectRow row: Int,
                  inComponent component: Int)