Hi Im trying to change the tabcontroller flow, so when a user is not loged in just take him to the login view instead the settings one. My controller extends TabBarController and I set the delegate as
self.tabBarController.delegate=self;
My Code is:
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController {
if (login) {
LoginViewController *loginViewController = [[LoginViewController alloc] init];
UINavigationController *navController = [[UINavigationController alloc]
initWithRootViewController:loginViewController];
[tabBarController presentViewController:loginViewController animated:YES completion:nil];
return NO;
} else {
return YES;
}
I never manage to do the navigation it gives an excetion :
ion 'NSInvalidArgumentException', reason: 'Application tried to present modally an active controller <UITabBarController: 0x6a72220>.
I also tried to show the login in as a modal but it only shows a black screen:
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController {
if (YES) {
LoginViewController *loginViewController = [[LoginViewController alloc] init];
UINavigationController *navController = [[UINavigationController alloc]
initWithRootViewController:loginViewController];
[tabBarController presentModalViewController:navController animated:YES];
return NO;
} else {
return YES;
}
}
Can anybody help Me!!!! please!!!!
Well I manage to fix the black modal screen (still cant d a segue that is not modal).
The problem was that as I am using storyboard I have to load the view from story board as follows.
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
UIViewController *navController = [storyboard instantiateViewControllerWithIdentifier:#"login"];
[navController setModalPresentationStyle:UIModalPresentationFullScreen];
[self presentModalViewController:navController animated:YES];
That made the trick :)
Related
Please check below code . I need to implement tabbar and facebook slide menu together.
tabBarController.delegate = self;
self.leftController = [[LeftViewController alloc] initWithNibName:#"LeftViewController" bundle:nil];
RightViewController* rightController = [[RightViewController alloc] initWithNibName:#"RightViewController" bundle:nil];
// ViewController *centerController = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
FirstViewController *centerController = [[FirstViewController alloc] initWithNibName:#"FirstView" bundle:nil];
self.centerController = [[UINavigationController alloc] initWithRootViewController:centerController];
IIViewDeckController* deckController = [[IIViewDeckController alloc] initWithCenterViewController:self.centerController
leftViewController:self.leftController
rightViewController:rightController];
deckController.rightSize = 100;
self.window.rootViewController = deckController;
// Add the tab bar controller's view to the window and display.
[self.window addSubview:tabBarController.view];
Since it looks like you're using the IIViewDeckController, look at its automaticallyUpdateTabBarItems property.
I've created a new "Tab Bar project" with the new Xcode 4.2. The "new" way to work with UITabBar is different: Xcode doesn't create a xib file (with the UITabBarController), but it does everything via code. Ok, let's do it.
So my code in didFinishLaunchingWithOptions is this:
UIViewController *viewController1, *viewController2, *viewController3;
UINavigationController *nav1, *nav2, *nav3;
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
viewController1 = [[gemboy_iphone alloc] initWithNibName:#"vc1" bundle:nil];
viewController2 = [[concerti_iphone alloc] initWithNibName:#"vc2" bundle:nil];
viewController3 = [[discografia_iphone alloc] initWithNibName:#"vc3" bundle:nil];
nav1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
nav2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
nav3 = [[UINavigationController alloc] initWithRootViewController:viewController3];
}
else {
//same thing for the iPad version
}
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:nav1, nav2, nav3, nil];
self.window.rootViewController = self.tabBarController;
[self.window addSubview:self.splash.view];
[self.window makeKeyAndVisible];
return YES;
And it works.
My three .m files vc1.m, vc2.m and vc3.m (and also my iPad UIViewControllers) has this method
- (BOOL)shouldAutorotate {
return YES;
}
The problem is that when I rotate the iPhone, it's not rotating.
Any one please tell me where i done mistake and any thing wrong?
You should subclass the uitabbarcontroller and implemetn
- (BOOL)shouldAutorotate
{
return YES;
}
- (NSUInteger)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskAll;
}
I am trying to load variables into a detail view controller from a NSDictionary in the primary view controller.
I am trying to use the images in the primary view Controller to determine which variable to use in the detail view controller.
My code is like this in the primary View controller;
-(IBAction)pushView:(id) sender{
SomeDetailViewController *detailController = [[SomeDetailViewController alloc] init];
if ((self.imageView.image = [UIImage imageNamed:#"0002.jpg"])) {
NSMutableDictionary *myDictionary = [NSMutableDictionary dictionaryWithObjectsAndKeys:
#"titleA", #"headerkey2",,nil];
detailController.mapDictionary = mapDictionary;
NSLog(#"%#", [myDictionary objectForKey:#"headerkey2"]);
}
else if((self.imageView.image = [UIImage imageNamed:#"0003.jpg"])) {
NSMutableDictionary *myDictionary = [NSMutableDictionary dictionaryWithObjectsAndKeys:
#"TitleB", #"headerkey2",,nil];
detailController.myDictionary = myDictionary;
NSLog(#"%#", [myDictionary objectForKey:#"headerkey2"]);
}
[self.navigationController pushViewController:detailController animated:YES];
}
then in my receiving detail view controller my code is;
-(void) viewDidLoad{
[super viewDidLoad];
self.title = [(NSMutableDictionary *)myDictionary objectForKey:#"headerkey2"];
}
Unfortunately this is not working. The same thing shows up for the navigationBar title no matter what.
Can I use a UIImage as a condition?
Any help would be greatly appreciated.
I have used the backlash but doesn't seem to be working in all cases.
Do you use "=" in the if statement for some reason? if not, use "==" instead.
the doc says that [UIImage imageNamed] returns the object associated with specified image, which means it should always return the same object for a same image, so you can use UIImage in condition.
I need to create an app with a Split View but I need to add a tab bar in the Master side of the split, I've read some stuff in this forum but I just can't get it right.
I understand that when you have a split view you actually handle two view controllers the master and the detail so, to my understanding, if I need a tab bar in the master side I have to call the master from the appDelegate and inside this master I can set it up as a Tab Bar controller but either I have a complete misconception or I'm just implementing it wrong.
Here's what I'm doing in the appDelegate, as you can see I'm loading another VC than the master VC that comes with the template, my first question is if I have to load a VC or just an NSObject with the tab bar protocol?:
WTDInitialViewController *initialViewController = [[WTDInitialViewController alloc] initWithNibName:#"WTDInitialViewController" bundle:nil];
UINavigationController *initialNavigationController = [[UINavigationController alloc] initWithRootViewController:initialViewController];
WTDDetailViewController *detailViewController = [[WTDDetailViewController alloc] initWithNibName:#"WTDDetailViewController_iPad" bundle:nil];
UINavigationController *detailNavigationController = [[UINavigationController alloc] initWithRootViewController:detailViewController];
self.splitViewController = [[UISplitViewController alloc] init];
self.splitViewController.delegate = detailViewController;
self.splitViewController.viewControllers = [NSArray arrayWithObjects:initialNavigationController, detailNavigationController, nil];
self.window.rootViewController = self.splitViewController;
Now, this is what I do in the so called VC
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
NSMutableArray *vcArray = [[NSMutableArray alloc] initWithCapacity:1];
_tabBarController = [[UITabBarController alloc] init];
WTDMasterViewController *masterViewController = [[WTDMasterViewController alloc] initWithNibName:#"WTDMasterViewController_iPad" bundle:nil];
_navigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];
_navigationController.navigationBar.barStyle = UIBarStyleBlack;
[vcArray addObject:_navigationController];
_tabBarController.viewControllers = vcArray;
_tabBarController.moreNavigationController.navigationBar.barStyle = UIBarStyleBlack;
self.tabBarController.selectedIndex = 0;
[_window addSubview:_tabBarController.view];
[_window makeKeyAndVisible];
}
return self;
It may be a stupid question but I hit a dead end so, any help will be much appreciated
First, I'm assuming you are creating SplitView for ipad. It's initial comes with MasterViewController and DetailViewController. And the MasterViewController is UITableview base, now you want to implement Tabbar base instead, then just call do this in ViewWillAppear of MasterViewController.
UIViewController *viewController1 = [[[YourTabView1 alloc] initWithNibName:#"YourTabView1" bundle:nil]autorelease];
//If you want the view support Navigation then do this
UINavigationController *tab1 = [[[UINavigationController alloc] initWithRootViewController:viewController1]autorelease];
UIViewController *viewController2 = [[[YourTabView2 alloc] initWithNibName:#"YourTabView2" bundle:nil]autorelease];
UINavigationController *tab2 = [[[UINavigationController alloc] initWithRootViewController:viewController2]autorelease];
UITabBarController *tabbarController = [[UITabBarController alloc] init];
tabbarController.viewControllers = [NSArray arrayWithObjects:tab1,tab2,nil];
[self presentModalViewController:tabbarController animated:YES];
I think this should work(but I didnt test the code).
TabBar will be about 2 question. I am using a combination of a TabBar and NavigationController. As the following link.
http://developer.apple.com/library/ios/#featuredarticles/ViewControllerPGforiPhoneOS/CombiningViewControllers/CombiningViewControllers.html
Question 1:
I would like to appear before a TabBar to another ViewController. Several checks are here to do. (For example, Facebook login) If the prerequisites are met, tabbar will be visible. How do I do?
Question 2:
TabBar screen icon that appears in the middle of the first TabBar want it to be. The following code sequence also affects the order of TabBarItem.
self.tabBarController.viewControllers = [NSArray arrayWithObjects: viewController1, viewController2, nil];
Thank you.
Okan Sahin
For those who have the same problem:
I'm using Xcode 4.2. I have created Tabbed App.
Answer 1:
For loading screen,
I created a new ViewController.
AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIViewController *viewControllerLoading = [[LoadingViewController alloc] initWithNibName:#"LoadingViewController" bundle:nil];
self.window.rootViewController = viewControllerLoading;
[self.window makeKeyAndVisible];
return YES;
}
LoadingViewController.h
#interface LoadingViewController : UIViewController <UITabBarControllerDelegate>
#property (strong, nonatomic) UITabBarController *tabBarController;
#end
LoadingViewController.m
UIViewController *viewControllerFriends = [[FriendsViewController alloc] initWithNibName:#"FriendsViewController" bundle:nil];
UINavigationController* navController1 = [[UINavigationController alloc]
initWithRootViewController:viewControllerFriends];
UIViewController *viewConrollerMessages = [[MessagesViewController alloc] initWithNibName:#"MessagesViewController" bundle:nil];
UINavigationController* navController2 = [[UINavigationController alloc]
initWithRootViewController:viewConrollerMessages];
UIViewController *viewControllerWorld = [[WorldViewController alloc] initWithNibName:#"WorldViewController" bundle:nil];
UINavigationController* navController3 = [[UINavigationController alloc]
initWithRootViewController:viewControllerWorld];
UIViewController *viewControllerCheckIn = [[CheckInViewController alloc] initWithNibName:#"CheckinViewController" bundle:nil];
UINavigationController* navController4 = [[UINavigationController alloc]
initWithRootViewController:viewControllerCheckIn];
UIViewController *viewControllerProfile = [[ProfileViewController alloc] initWithNibName:#"ProfileViewController" bundle:nil];
UINavigationController* navController5 = [[UINavigationController alloc]
initWithRootViewController:viewControllerProfile];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navController1, navController2, navController3, navController4, navController5, nil];
[self.view addSubview:self.tabBarController.view];
Answer 2:
self.tabBarController.selectedIndex = 2;
Best regards
Okan Sahin