iPhone UIPickerView : Change selector height

Question

是否可以更改选择器 View 上的选择器高度？

谢谢

Answer 1

在您的选择器委托(delegate)中实现此功能

pickerView:rowHeightForComponent:

来自UIPickerViewDelegate Reference :

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

- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component

• Parameters

  pickerView - The picker view requesting this information.

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

  Return Value - A float value indicating the height of the row in points.