title: Change UIPickerView's component height?
body: <p>I have a pickerView whose height is 28, I want each component to be of the same height of the pickerView, so I return 28 in <code>pickerView:rowHeightForComponent</code> but this doesn't seem to work. if I returned 10 instead of 28, the height changes. Is there a imitation on the maximum height which can be returned in <code>pickerView:rowHeightForComponent</code>, like if it exceeded a certain threshold it uses a default height? </p>