CAPickerView

CAPickerView Detailed Description

Class Description

Picker control, pickerView at least contains one component and each component includes selected sub item (row).

Effect Picture

Base Class

CAView，CATableViewDataSource

Attribute

Access modifier	Attribute name	Description
protected	Delegate	sliding event delegate
protected	DataSource	data delegate
protected	FontSizeNormal	font size in normal status
protected	FontSizeSelected	font size in selected status
protected	FontColorNormal	font color in normal status
protected	FontColorSelected	font color in selected status
protected	SeparateColor	border color of selected border

 

Method

Access modifier	Method name	Description
public	numberOfComponents	obtain number of components
public	numberOfRowsInComponent	obtain row number of appointed components
public	rowSizeForComponent	obtain appointed components’ size
public	viewForRow	obtain row
public	reloadAllComponents	reload all components
public	reloadComponent	reload appointed components
public	selectRow	appoint selected row
public	selectedRowInComponent	obtain current selected row

Attribute Description

Delegate
Type: CAPickerViewDelegate*
Description: pickerView’s selected event delegate which contains one interface that will be triggered when it’s selected, public get/set{}.

DataSource
Type: CAPickerViewDataSource*
Description: pickerView’s data delegate, please refer to detailed interface of delegate class: CAPickerViewDataSource, public get/set{}.

FontSizeNormal
Type: float
Description: font size of alternative item, public get/set{}.

FontSizeSelected
Type: float
Description: font size of selected item, public get/set{}.

FontColorNormal
Type: CAColor4B
Description: font color of alternative item, public get/set{}.

FontColorSelected
Type: CAColor4B
Description: font color of selected item, public get/set{}.

SeparateColor
Type: CAColor4B
Description: border color of select box, public get/set{}.

Method Description

virtual int numberOfComponents()
Return value: int
Description: return component number of pickerView

virtual int numberOfRowsInComponent(unsigned int component)
Return value: int

Type	Parameter name	Description
unsigned int	component	appointed component

Description: return component number of pickerView

virtual CCSize rowSizeForComponent(unsigned int component)
Return value: CCSize
Parameter name

Type	Parameter name	Description
unsigned int	component	appointed component

virtual CAView viewForRow(unsigned int row, unsigned int component)*
Return value: CAView*
Parameter:

Type	Parameter name	Description
unsigned int	row	appointed row
unsigned int	component	appointed component

virtual void reloadAllComponents()
Return value: void
Description: reload all components and you must manually reload pickerView once when you build it.

Example:

1 2 3 4 5 6 7 8 9 10

pickerView = CAPickerView: : createWithCenter(CCRect(size. width*0. 5, size. height*0. 5, size. width*0. 6, size. height*0. 5));          pickerView->setDelegate(this);          pickerView->setDataSource(this);          pickerView->setFontSizeNormal(30 * CROSSAPP_ADPTATION_RATIO);          pickerView->setFontSizeSelected(30 * CROSSAPP_ADPTATION_RATIO);          pickerView->setFontColorNormal(CAColor_blueStyle);          pickerView->setFontColorSelected(CAColor_blueStyle);          pickerView->setSeparateColor(CAColor_blueStyle);          pickerView->reloadAllComponents();          this->getView()->addSubview(pickerView);

 

virtual void reloadComponent(unsigned int component, bool bReload = true)
Return value: void
Parameter:

Type	Parameter name	Description
unsigned int	component	appointed component
bool	bReload	optional parameters

virtual void selectRow(unsigned int row, unsigned int component, bool animated = false)
Return value: void
Parameter:

Type	Parameter name	Description
unsigned int	row	appointed row
unsigned int	component	appointed component
bool	animated	optional parameters

virtual int selectedRowInComponent(unsigned int component)
Return value: int
Parameter name

Type	Parameter name	Description
unsigned int	component	appointed component

Usage reference

Please refer to pickerView’s detailed usage in CAPageViewTest example of CrossApp official Demo, path: CrossApp \samples\demo\Classes\PickerViewTest.