CATabBarController

CATabBarController

Class Description

As a derived class of CAViewController and a special viewController, CATabBarController is responsible for coordinating multi viewControllers inter-work and is a special encapsulation to viewController. In general, TabBarController is very efficient in condition that programs have parallel interface using demand (here the parallel interface means some functionality interface in program is at the same level), and all these functionality interface are able to switch from each other.

Base Class

CAViewController，CATabBarDelegate，CAPageViewDelegate，CAScrollViewDelgate

Attribute

Access modifier	Attribute name	Description
protected	ScrollEnabled	start scroll switch or not
protected	TabBarAnimated	play page turning animation or not
protected	TabBarHidden	hide tabBar or not
protected	TabBar	tabBar that is internal created by tabBarController
protected	TabBarVerticalAlignment	tabBar’s vertical position

Method

Access modifier	Method name	Description
public	initWithViewControllers	build CATabBarController
public	showSelectedViewController	current selected viewController
public	getSelectedViewController	obtain current selected viewController
public	showSelectedViewControllerAtIndex	display current selected viewController via index value
public	getSelectedViewControllerAtIndex	obtain index value of viewController of current displayed view.
protected	updateItem	update tabBarItem

Attribute Description

ScrollEnabled
Type:bool
Descripiton: set scroll by gesture or not, tabBarController page, is/set{}.

TabBarAnimated
Type:bool
Descripiton: read-only property, obtain tabBar’s condition that it’s set switch animation or not.

TabBarHidden
Type:bool
Descripiton: read-only property, obtain tabBar is hiden or not.

TabBar
Type:CATabBar*
Descripiton: read-only property, it’s used to obtain CATabBar of current view controller CATabBarController, when we build tabBarController, each tabBarController will auto build a tabBar, and you can obtain it via getTabBar method.

TabBarVerticalAlignment
Type:CABarVerticalAlignment
Descripiton: read-only property and enumeration type, obtain tabBar position of tabBarController, it’s at the bottom of screen by default.

typedef enum
{
CABarVerticalAlignmentTop = 0,
CABarVerticalAlignmentBottom
}CABarVerticalAlignment;

Method Description

bool initWithViewControllers(const std: : vector<CAViewController>& viewControllers，CABarVerticalAlignment var = CABarVerticalAlignmentBottom)*
Return value:bool
Parameter:

Type	Parameter name	Description
vector<CAViewController*>	viewControllers	view controller array
CABarVerticalAlignment	var	optional parameters, tabBar’s position

Descripiton: Introduce a group viewController to build CATabBarController which separately manage tabBar subitem. If system does not transfer var parameter, then CATabBarController’s position is at the bottom of screen by default.

bool showSelectedViewController(CAViewController viewController, bool animated)*
Return value:bool
Parameter:

Type	Parameter name	Description
CAViewController*	viewControllers	current view controller
bool	animated	play switch animation or not

CAViewController getSelectedViewController()*
Return value:CAViewController*
Descripiton: obtain current selected viewController

bool showSelectedViewControllerAtIndex(unsigned int index, bool animated)
Return value:bool
Parameter:

Type	Parameter name	Description
unsigned int	index	index value of view controller
bool	animated	play switch animation or not

Descripiton: set current displayed view’s view controller via transferred index value and set play switch animation or not.

unsigned int getSelectedViewControllerAtIndex()
Return value:unsigned int
Descripiton: obtain index value of current selected viewController

void updateItem(CAViewController viewController)*
Return value:void
Parameter:

Type	Parameter name	Description
CAViewController*	viewController	view controller that needs to be updated.