How to rewrite Objective C to RubyMotion

Question

I am trying to reset the UIPickerView on button click. After searching StackOverflow I found:

[picker reloadAllComponents];
[picker selectRow:0 inComponent:0 animated:YES];

I rewrote it in Ruby like this:

  def reset_picker
    @picker.reloadAllComponents
    @picker.selectRow( 0, inComponent: 0, animated: true)
  end

The above only resets the first component; how do I reset all three components? I know it has something to do the inComponent: 0 in the reset_picker method.

Below are the UIPickerView method calls:

  def numberOfComponentsInPickerView(pickerView)
    component_options.count
  end

  def pickerView(pickerView, numberOfRowsInComponent: component)
    component_options[component].count
  end

  def pickerView(pickerView, titleForRow: row, forComponent: component)
    component_options[component][row]
  end

Answer 1

You are right - The inComponent: 0 relates to the index of the component.

With that in mind, to reset all three components you just need to:

def reset_picker
    @picker.reloadAllComponents
    @picker.selectRow( 0, inComponent: 0, animated: true)
    @picker.selectRow( 0, inComponent: 1, animated: true)
    @picker.selectRow( 0, inComponent: 2, animated: true)
end