UIDatePicker changing size

How do I change the size of a UIDatePicker? Setting the frame doesn't seem to work. It only changes the size of the black background on a UIDatePicker, not the actual compo开发者_JS百科nents within the Picker.

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You can only change the width of a UIPickerView.

However, a common user interface solution is to put the picker into an UIActionSheet (or other similar modal dialog).

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It's not possible to change the size of a UIDatePicker, afaik.