类说明

CAPickerView的滚动事件的代理

CAPickerViewDelegate 方法（点击查看方法介绍）

CAPickerViewDelegate 方法说明

virtual unsigned int numberOfComponentsInPickerView(CAPickerView* pickerView) = 0; 

返回值：unsigned int

参数：

解释：获取PickerView的Component数量

virtual unsigned int numberOfRowsInComponent(CAPickerView* pickerView, unsigned int component) = 0;

返回值：unsigned int

参数：

解释：获取PickerView的Component行数

virtual float widthForComponent(CAPickerView* pickerView, unsigned int component) {return 0;}

返回值：float

参数：

解释：PickerView的Component宽度

virtual float rowHeightForComponent(CAPickerView* pickerView, unsigned int component) {return 0;}

返回值：float

参数：

解释：PickerView的Component高度

virtual const char* titleForRow(CAPickerView* pickerView, unsigned int row, unsigned int component) {return NULL;}

返回值：const char*

参数：

解释：PickerView的Row标题

virtual CAView* viewForRow(CAPickerView* pickerView, unsigned int row, unsigned int component) {return NULL;}

返回值：CAView* 

参数：

解释：PickerView的背景图像

virtual CAView* viewForSelect(CAPickerView* pickerView, unsigned int component, const DSize& size) {return NULL;}

返回值：CAView* 

参数：

解释：PickerView的选中时图像