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pickerView(_:didSelectRow:inComponent:)

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

Declaration

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

Parameters

  • pickerView:

    An object representing the picker view requesting the data.

  • row:

    A zero-indexed number identifying a row of component. Rows are numbered top-to-bottom.

  • component:

    A zero-indexed number identifying a component of pickerView. Components are numbered left-to-right.

Discussion

To determine what value the user selected, the delegate uses the row index to access the value at the corresponding position in the array used to construct the component.