Question

I am doing an application which is of SingleView BASED Application,where i have many UIviewcontrollerclass subclasses for moving from one view to another view.i have a tab bar in one of the view and want to communicate with others view when click on a tab.so plz tell me how can i do it i am stuck here.
i have classes called

LoginPage.h/.m/.xib

Myservices.h/.m/.xib

History.h/.m/.xib

Profile.h/.m/.xib

MyRecentRequest.h/.m/.xib

when i enter from login page it moves to Myservices view.
There i have added Tab bar at the bottom and added two more tab Items and totally have 4 tab bar items naming Myservices,history,MyrecentRequest and profile.

Now i want to connect the tab bar with other class so that when i click on tab item respective view should appear of that particular classs so how can i do this? please provide me sample code.

Answer 1

first of all how u r maintaining the tabBar, either from IB or code. The below if by code. You need to alloc a tabBar with all the viewControllers required into each tabItem, the below one is sample with 2 tabItems:

UITabBarController* tabBarController = [[UITabBarController alloc] init];
NSMutableArray *localViewControllersArray = [[NSMutableArray alloc] initWithCapacity:8];

ViewController1* vC1 = [[ViewController1 alloc] init];
UINavigationController* navController1 = [[UINavigationController alloc] initWithRootViewController:vC1];
[vC1 release];      
navController1.tabBarItem.image = [UIImage imageNamed:@"navController1_image.png"];
[localViewControllersArray addObject:navController1];
[navController1 release]; 

ViewController2* vC2 = [[ViewController2 alloc] init];
UINavigationController* navController2 = [[UINavigationController alloc] initWithRootViewController:vC2];
navController2.tabBarItem.image = [UIImage imageNamed:@"navController2_image.png"];
[vC2 release];      
[localViewControllersArray addObject:navController2];
[navController2 release]; 

tabBarController.viewControllers = localViewControllersArray;
    self.window.rootViewController = tabbarController;
[localViewControllersArray release];
    [tabBarController release];

In this way u can maintain the tabBar by code, so that if tab is selected respective view will be shown, in this example a navigation controller is used in each tab to provide navigation, if only 1 view is required u can avoid the navigation controller..