how to use two same ViewController.xib in tabBarController - iphone

Question

i use a tabBarController to show photos, and each kind of photos are show in each tab,
so i use one ViewController.xib , and how to show different content(Navigation Item and ImageView) in each tab ?
and my question is :
where and how to write codes next step, does the codes in -(void)tabBarController or in PhotoController.m ? –
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
UIViewController *photoController1 = [[[PhotoController alloc] initWithNibName:#"PhotoController" bundle:nil] autorelease];
UIViewController *photoController2 = [[[PhotoController alloc] initWithNibName:#"PhotoController" bundle:nil] autorelease];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:
,photoController1
,photoController2
,nil];
self.tabBarController.delegate=self;
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
{
switch (tabBarController.selectedIndex)
{
case 4:
//how to write code;
break;
case 5:
//how to write code;
default:
break;
}
}

Answer 1

You can make some prepare method in your PhotoController, and make it public, so you can call it from tabBarController didSelectViewController, so the code may look like this:
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {
switch (tabBarController.selectedIndex) {
case 4:
//configure options for photoController
[viewController prepareForDisplayWithOptions:options];
break;
case 5:
//configure options for photoController2
[viewController prepareForDisplayWithOptions:options2];
break;
default:
break;
}
}