Adding a UITabbarController in appdelegate in xcode? - iphone

Question

I need to add a tabbarcontroller with ViewControllers when Facebook login is successful.BUt Couldn't understand how?
I have in appDelegate.m:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
SearchView *first=[[SearchView alloc]
initWithNibName:#"SearchView" bundle:nil];
Login *second=[[Login alloc]initWithNibName:#"Login" bundle:nil];
second.title=#"Login";
NSArray *viewArray=[[NSArray alloc] initWithObjects: first,second,nil];
tabBarController=[[UITabBarController alloc] init];
[tabBarController setViewControllers:viewArray animated:NO];
[self.window addSubview:tabBarController.view];
[self.window makeKeyAndVisible];
[viewArray release];
[first release];
[second release];
return YES;
}
}
- (void)sessionStateChanged:(FBSession *)session
state:(FBSessionState) state
error:(NSError *)error
{
switch (state) {
case FBSessionStateOpen:
if (!error) {
FBLogin *fblogin=[[FBLogin alloc]initWithNibName:#"FBLogin" bundle:nil];
[self.window addSubview:fblogin.view];
}
break;
case FBSessionStateClosed:
case FBSessionStateClosedLoginFailed:
[[FBSession activeSession] closeAndClearTokenInformation];
break;
default:
break;
}
[[NSNotificationCenter defaultCenter]
postNotificationName:FBSessionStateChangedNotification
object:session];
if (error) {
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:#"Error"
message:error.localizedDescription
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alertView show];
}
}
In FBLogin.m :
-(void)viewDidAppear:(BOOL)animated
{
SearchView *searchViewController=[[SearchView alloc]initWithNibName:#"SearchView" bundle:nil];
UserProfile *userprofile=[[UserProfile alloc]initWithNibName:#"UserProfile" bundle:nil];
userprofile.title=#"My Profile";
LogOut *logout=[[LogOut alloc]initWithNibName:#"LogOut" bundle:nil];
logout.title=#"Sign Out";
tab=[[UITabBarController alloc]init];
tab.viewControllers=[NSArray arrayWithObjects:searchViewController,userprofile,logout, nil];
[self presentModalViewController:tab animated:NO];
}
But I couldnot see the tabbarcontroller added in fBLogin.I can see an empty white view.
Y is it so ?
how can I achieve it ?

Answer 1

just set and initialize the UITabBarController in AppDelegate and when you sign in successfull just call UITabBarController as a rootViewController of window with our custom method For Ex...
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIViewController *viewController1 = [[[yourViewController1 alloc] initWithNibName:#"yourViewController1" bundle:nil] autorelease];
UINavigationController *navviewController1=[[UINavigationController alloc]initWithRootViewController:viewController1];
UIViewController *viewController2 = [[[yourViewController2 alloc] initWithNibName:#"yourViewController2" bundle:nil] autorelease];
UINavigationController *navviewController2=[[UINavigationController alloc]initWithRootViewController:viewController2];
UIViewController *viewController3 = [[[yourViewController3 alloc] initWithNibName:#"yourViewController3" bundle:nil] autorelease];
UINavigationController *navviewController3=[[UINavigationController alloc]initWithRootViewController:viewController3];
UIViewController *viewController4 = [[[yourViewController4 alloc] initWithNibName:#"yourViewController4" bundle:nil] autorelease];
UINavigationController *navviewController4=[[UINavigationController alloc]initWithRootViewController:viewController4];
UIViewController *viewController5 = [[[yourViewController5 alloc] initWithNibName:#"yourViewController5" bundle:nil] autorelease];
UINavigationController *navviewController5=[[UINavigationController alloc]initWithRootViewController:viewController5];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navviewController1, navviewController2,navviewController3,navviewController4,navviewController5, nil];
SearchView *first=[[SearchView alloc]
initWithNibName:#"SearchView" bundle:nil];
Login *second=[[Login alloc]initWithNibName:#"Login" bundle:nil];
second.title=#"Login";
NSArray *viewArray=[[NSArray alloc] initWithObjects: first,second,nil];
yourTabBarController=[[UITabBarController alloc] init];
[yourTabBarController setViewControllers:viewArray animated:NO];
[self.window addSubview:yourTabBarController.view];
[self.window makeKeyAndVisible];
return YES;
}
when you sign in success full just call bellow our custom method..
-(void)loadTabBarFromDelegate
{
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
CATransition *animation = [CATransition animation];
[animation setDelegate:self];
[animation setType:kCATransitionFade];
[animation setDuration:0.5];
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:
kCAMediaTimingFunctionEaseInEaseOut]];
[[self.window layer] addAnimation:animation forKey:#"transitionViewAnimation"];
}
and when you want to call this method just create object and call this method like bellow...
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
[appDelegate loadTabBarFromDelegate];
i hope this help you...

Answer 2

Try moving your code from viewDidLoad to viewDidAppear.