I am trying to add UIBarButtonItem to navigationItem but it does not gets displayed
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
lbl =[[UILabel alloc] initWithFrame:CGRectMake(20, 100, 200, 40)];
lbl.text=#"Hello,World";
lbl.textAlignment= NSTextAlignmentCenter;
[self.view addSubview:lbl];
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc]
initWithImage:[UIImage imageNamed:#"house.png"]
style:UIBarButtonItemStylePlain
target:self
action:#selector(goHome:)];
self.navigationItem.rightBarButtonItem = rightButton;
}
app delegate code
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
ViewController *controller = [[ViewController alloc] init];
[controller.navigationItem setTitle:#"Main View"];
UINavigationController *navcontroller =[[UINavigationController alloc] initWithRootViewController:controller];
self.window.rootViewController=navcontroller;
self.window.backgroundColor = [UIColor whiteColor];
// Override point for customization after application launch.
return YES;
}
Related
I implemented a UITabBarController with 4 items.
I set the initial ViewController from AppDelegate.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
HomeTabBarViewController* homeVC = [[HomeTabBarViewController alloc] init];
[self.window setRootViewController:homeVC];
[self.window makeKeyAndVisible];
return YES;
}
Here is HomeTabBarViewController ViewDidLoad Code:
UIViewController *view1 = [[UIViewController alloc] init];
[view1.view setBackgroundColor:[UIColor redColor]];
UIViewController *view2 = [[UIViewController alloc] init];
UINavigationController * centerNav=[[UINavigationController alloc]initWithRootViewController:view1];
HomePagingViewController * view3=(HomePagingViewController*)[storyboard instantiateViewControllerWithIdentifier:#"HomePagingViewController"];
UINavigationController * centerNav3=[[UINavigationController alloc]initWithRootViewController:view3];
UIViewController *view4 = [[UIViewController alloc] init];
UINavigationController * centerNav4=[[UINavigationController alloc]initWithRootViewController:view4];
[view2.view setBackgroundColor:[UIColor greenColor]];
[view3.view setBackgroundColor:[UIColor purpleColor]];
[view4.view setBackgroundColor:[UIColor grayColor]];
NSMutableArray *tabViewControllers = [[NSMutableArray alloc] init];
[tabViewControllers addObject:centerNav];
[tabViewControllers addObject:view2];
[tabViewControllers addObject:centerNav3];
[tabViewControllers addObject:centerNav4];
[self setViewControllers:tabViewControllers];
view1.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Home"
image:[UIImage imageNamed:#"home_tab_item.png"] selectedImage:[UIImage imageNamed:#"home_tab_item_active.png"]] ;
view2.tabBarItem =
[[UITabBarItem alloc] initWithTitle:#"Bookmark"
image:[UIImage imageNamed:#"bookmark_tab_item.png"] selectedImage:[UIImage imageNamed:#"bookmark_tab_item_active.png"]];
view3.tabBarItem =
[[UITabBarItem alloc] initWithTitle:#"Paper"
image:[UIImage imageNamed:#"paper_tab_item.png"] selectedImage:[UIImage imageNamed:#"paper_tab_item_active.png"]];
view4.tabBarItem =
[[UITabBarItem alloc] initWithTitle:#"More"
image:[UIImage imageNamed:#"menu_tab_item.png"] selectedImage:[UIImage imageNamed:#"menu_tab_item_active.png"]];
In HomePagingViewController ViewDidLoad I setUp a Navigation as in code
-(void)navigationSetUp{
self.navigationController.navigationBar.translucent=NO;
UIBarButtonItem * settingBtn=[[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:#"settings.png"] style:UIBarButtonItemStylePlain target:self action:#selector(menuHandler:)];
UIBarButtonItem * searchBtn=[[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:#"settings.png"] style:UIBarButtonItemStylePlain target:self action:#selector(menuHandler:)];
self.navigationItem.leftBarButtonItem = settingBtn;
self.navigationItem.rightBarButtonItem = searchBtn;
self.navigationItem.titleView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"ie_New_logo.png"]];
}
After this when I changed the tab for HomePagingViewController the navigation right button not placed correctly there is no margin from right.
Refer Image :
Please Help.
I resolved the issue , there is no issue with the code . Actually for Epaper we using third party SDK So that this problem occur.I Removed SDK & the code is working fine now.
you should think UIBarButtonSystemItemFixedSpace effect.
eg:
UIBarButtonItem * space = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
--
Why use a system navigation bar ？Custom navigation bar is nice！like:https://github.com/chenliangloveyou/EasyNavigation
I have created tabBar controller programmatically and i have to add Reside menu..i implemented reside menu and done all process but its not working.
Here is my code:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
self.tabBarController =[[UITabBarController alloc]init];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:[[LeftMenuView alloc] init]];
LeftMenuView *leftMenuViewController = [[LeftMenuView alloc] init];
RESideMenu *sideMenuViewController=[[RESideMenu alloc]initWithContentViewController:navigationController leftMenuViewController:leftMenuViewController rightMenuViewController:leftMenuViewController];
sideMenuViewController.backgroundImage = [UIImage imageNamed:#"logo"];
sideMenuViewController.menuPreferredStatusBarStyle = 1; // UIStatusBarStyleLightContent
sideMenuViewController.delegate = self;
sideMenuViewController.contentViewShadowColor = [UIColor blackColor];
sideMenuViewController.contentViewShadowOffset = CGSizeMake(0, 0);
sideMenuViewController.contentViewShadowOpacity = 0.6;
sideMenuViewController.contentViewShadowRadius = 12;
sideMenuViewController.contentViewShadowEnabled = YES;
self.window.rootViewController = sideMenuViewController;
//Initialize View controller and speciality
UIViewController *viewcontroller1=[[HomeView alloc]init];
UIViewController *viewcontroller2=[[Speciality alloc]init];
UIViewController *viewcontroller3=[[Activity alloc]init];
UIViewController *viewcontroller4 =[[Notification alloc]init];
UIViewController *viewcontroller5 =[[Profile alloc]init];
UIViewController *viewconroller6=[[LeftMenuView alloc]init];
[navigationController pushViewController:viewconroller6 animated:YES];
self.tabBarController.viewControllers=[NSArray arrayWithObjects:viewcontroller1,viewcontroller2,viewcontroller3,viewcontroller4,viewcontroller5, nil];
self.window.rootViewController =self.tabBarController;
self.tabBarController.tabBar.barTintColor = [UIColor colorWithRed:0.376 green:0.729 blue:0.318 alpha:1.000];
self.window.backgroundColor=[UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
//HomeView.h
-(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{
self=[super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self){
UIView *singleView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 480)];
self.title=#"Home";
self.tabBarItem.image=[UIImage imageNamed:#"home.png"];
UINavigationBar *navbar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.frame), 50)];
[navbar setTranslucent:YES];
[navbar setBackgroundColor:[UIColor colorWithRed:0.376 green:0.729 blue:0.318 alpha:1.000]];
[singleView addSubview:navbar];
UIButton *btn=[UIButton buttonWithType:UIButtonTypeSystem];
[btn addTarget:self action:#selector(presentLeftMenuViewController:) forControlEvents:UIControlEventTouchUpInside];
[btn setTitle:#"Menu" forState:UIControlStateNormal];
btn.frame=CGRectMake(20, 25, 40, 40);
[singleView addSubview:btn];
[self.view addSubview:singleView];
}
return self;
}
I have an app with four viewControllers, and there is a lot of code that is repeating exactly the same way in the four view controllers, and I would like to know what is the best OOP way to write this code only one time and reuse it in the others view controllers.
This is the code from viewDidLoad of my first view controller:
- (void)viewDidLoad {
[super viewDidLoad];
[self setCanDisplayBannerAds:YES];
[[[self.tabBarController.viewControllers objectAtIndex:1] tabBarItem]setImage:[UIImage imageNamed:#"iconoBota30x30.png"]];
[[[self.tabBarController.viewControllers objectAtIndex:2] tabBarItem]setImage:[UIImage imageNamed:#"actividades.png"]];
[[[self.tabBarController.viewControllers objectAtIndex:3] tabBarItem]setImage:[UIImage imageNamed:#"nosotros.png"]];
float width = [UIScreen mainScreen].bounds.size.width;
float height = [UIScreen mainScreen].bounds.size.height;
static_iVar = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, width,height)];
static_iVar.delegate = self;
NSURL *url = [NSURL URLWithString:#"http://guiasdelsur.es"];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[static_iVar loadRequest:requestObj];
[self.view addSubview:static_iVar];
//GESTURES
//DOWN
UISwipeGestureRecognizer *gest1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(hideTabBar:)];
gest1.delegate = self;
[gest1 setDirection:UISwipeGestureRecognizerDirectionDown];
[self.view addGestureRecognizer:gest1];
//UP
UISwipeGestureRecognizer *gest2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(showTabBar:)];
gest2.delegate = self;
[gest2 setDirection:UISwipeGestureRecognizerDirectionUp];
[self.view addGestureRecognizer:gest2];
//first tab
_tabInicio = [[UITabBarItem alloc] initWithTitle:#"Inicio" image:[UIImage imageNamed:#"d.png"] tag:0];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];
[self.tabBarController setSelectedIndex:0];
self.tabBarItem = _tabInicio;
_cToolBar = [[UIToolbar alloc] init];
_cToolBar.frame = CGRectMake(0, 0, self.view.frame.size.width, 44);
NSMutableArray *items = [[NSMutableArray alloc] init];
[_cToolBar setBarStyle:UIBarStyleBlack];
[_cToolBar setTranslucent:YES ];
[_cToolBar setTintColor:[UIColor greenColor]];
// Do any additional setup after loading the view, typically from a nib.
NSString *backArrowString = #"\U000025C0\U0000FE0E Atrás"; //BLACK LEFT-POINTING TRIANGLE PLUS VARIATION SELECTOR
UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithTitle:backArrowString style:UIBarButtonItemStyleDone target:nil action:#selector(goBack)];
UIBarButtonItem *right = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:nil action:#selector(refreshControl)];
[right setTintColor:[UIColor greenColor]];
UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
[items addObject:back];
[items addObject:flexibleSpace];
[items addObject:right];
[_cToolBar setItems:items animated:NO];
[self.view addSubview:_cToolBar];
//iAD
ADBannerView * adView = [[ADBannerView alloc] initWithFrame:CGRectZero];
adView.frame = CGRectOffset(adView.frame, 0, 44);
adView.delegate = self;
[self.view addSubview:adView];
//loading indicator
_indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
[_indicator setCenter:self.view.center];
[_indicator setHidesWhenStopped:YES];
[self.view addSubview:_indicator];
[_indicator startAnimating];
}
And this is the code from viewDidLoad method of my secondViewController, very similar to the first one. The differences in all my view controllers are the same than those ones.
- (void)viewDidLoad {
[super viewDidLoad];
[self setCanDisplayBannerAds:YES];
float width = [UIScreen mainScreen].bounds.size.width;
float height = [UIScreen mainScreen].bounds.size.height;
static_iVar2 = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, width,height)];
static_iVar2.delegate = self;
NSURL *url = [NSURL URLWithString:#"http://guiasdelsur.es/category/programas/"];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[static_iVar2 loadRequest:requestObj];
[self.view addSubview:static_iVar2];
//second tab
_secondTab = [[UITabBarItem alloc] initWithTitle:#"Programas" image:[UIImage imageNamed:#"iconoBota30x30.png"] tag:1];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];
[self.tabBarController setSelectedIndex:1];
self.tabBarItem = _secondTab;
//GESTURES
//DOWN
UISwipeGestureRecognizer *gest1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(hideTabBar:)];
gest1.delegate = self;
[gest1 setDirection:UISwipeGestureRecognizerDirectionDown];
[self.view addGestureRecognizer:gest1];
//UP
UISwipeGestureRecognizer *gest2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:#selector(showTabBar:)];
gest2.delegate = self;
[gest2 setDirection:UISwipeGestureRecognizerDirectionUp];
[self.view addGestureRecognizer:gest2];
UIToolbar *cToolBar = [[UIToolbar alloc] init];
cToolBar.frame = CGRectMake(0, 0, self.view.frame.size.width, 44);
NSMutableArray *items = [[NSMutableArray alloc] init];
[cToolBar setBarStyle:UIBarStyleBlack];
[cToolBar setTranslucent:YES ];
[cToolBar setTintColor:[UIColor greenColor]];
UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil ];
UIBarButtonItem *right = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:nil action:#selector(refreshControl)];
[right setTintColor:[UIColor greenColor]];
[items addObject:flexibleSpace];
[items addObject:right];
[cToolBar setItems:items animated:NO];
[self.view addSubview:cToolBar];
//iAD
ADBannerView * adView = [[ADBannerView alloc] initWithFrame:CGRectZero];
adView.frame = CGRectOffset(adView.frame, 0, 44);
adView.delegate = self;
[self.view addSubview:adView];
//Indicator
_indicador = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
[_indicador setCenter:self.view.center];
[_indicador setHidesWhenStopped:YES];
[self.view addSubview:_indicador];
[_indicador startAnimating];
}
It is a very good idea to refactor this code; it is an example of DRY. The best way in this case would be to use inheritance: write all common code in the ViewController class, e.g.
ViewController.h
#interface ViewController : UIViewController {
// Variables which are declared here can also be used in the subclasses
}
ViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
[self setCanDisplayBannerAds:YES];
// more common code
...
}
and have your other view controllers inherit from ViewController (rather than UIViewController):
FirstViewController.h
#interface FirstViewController : ViewController
...
FirstViewController.m
- (void)viewDidLoad {
[super viewDidLoad];
// more specific code
[[[self.tabBarController.viewControllers objectAtIndex:1] tabBarItem]setImage:[UIImage imageNamed:#"iconoBota30x30.png"]];
[[[self.tabBarController.viewControllers objectAtIndex:2] tabBarItem]setImage:[UIImage imageNamed:#"actividades.png"]];
[[[self.tabBarController.viewControllers objectAtIndex:3] tabBarItem]setImage:[UIImage imageNamed:#"nosotros.png"]];
...
}
I've been using a standard TabBarController and top NavigationBar within my app. The tabBar loads in the appDelegate, initializes the navigationBar to use an image instead of center title, and this exists for all four tabBar views. Occasionally I'll push a new view onto the view controllers and that works well enough.
What I'd like to do is be able to change the NavigationBar for each of the 4 tabBar view controllers, when they are opened. I'm having trouble doing this. My initial navigationBar has an image, loaded in the appDelegate. My questions from here are:
Should each viewController generally create a new navigationBar from scratch, per its needs, in the respective viewWillAppear method?
What navigationController and navigationBar should be editted-- always the appDelegate's navigationController, the tabBarController.navigationController, or simply self.navigationController in each view? (generally, most editing most of these is not working for me, causes no changes to occur)
If I override the standard title (which is usually the tabBar's current view's title) with the imageView, and want another tabBar view to use the standard title, how should I remove the titleView image, and reset back to text? And viceVersa, dependent on view? This is what I'm really trying to accomplish unsuccessfully.
I guess I'm looking for standard practice in managing the navigationBar per view, and changing it per tabBarItem.
// in appDelegate
- (void)initNav {
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.delegate = self;
self.tabBarController.navigationController.view.backgroundColor = [UIColor whiteColor];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:self.firstViewController,
self.secondViewController,
self.thirdViewController,
self.forthViewController,
nil];
[self.window addSubview:self.tabBarController.view];
self.navigationController = [[UINavigationController alloc] initWithRootViewController:self.tabBarController];
self.navigationController.navigationBarHidden = NO;
// customize background color of nav bar to "blue"ish color
self.navigationController.navigationBar.backgroundColor = [UIColor colorWithHexString:#"00A3E1"];
self.navigationController.navigationBar.tintColor = [UIColor colorWithHexString:#"00A3E1"];
self.navigationController.navigationBar.barTintColor = [UIColor colorWithHexString:#"00A3E1"];
[self createNavs];
}
// also in appDelegate
- (void)createNavs {
// white text when present
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor],
UITextAttributeTextColor,
[UIColor clearColor],
UITextAttributeTextShadowColor, nil];
[[UIBarButtonItem appearance] setTitleTextAttributes: attributes
forState: UIControlStateNormal];
AppDelegate *delegateRef = (AppDelegate*)[[UIApplication sharedApplication] delegate];
[self.navigationController.navigationBar setTranslucent:NO];
// setup left button (currently unused -- no left button)
/*
/*
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:[UIImage imageNamed:#"glyphicons_049_star.png"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(starClick:) forControlEvents:UIControlEventTouchDown];
[button setFrame:CGRectMake(0, 0, 25, 25)];
self.navigationController.navigationBar.topItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button];
*/
// setup logo in center
self.tabBarController.navigationItem.titleView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"synced_top_logo.png"]];
// setup right button (currently unused -- no right button)
/*
UIBarButtonItem *rightButton = [[UIBarButtonItem alloc] init];
rightButton.title = #"edit";
[rightButton setTarget:self ];
[rightButton setAction:#selector(editClick:)];
self.navigationController.navigationBar.topItem.rightBarButtonItem = rightButton;
*/
[[self navigationController] setNavigationBarHidden:NO animated:YES];
[[delegateRef navigationController] setNavigationBarHidden:NO animated:YES];
}
EDIT:
This is a simplified version of the solution posted below that was helpful, and allowed the customization that was needed. Each view controller customizations its navigationbar independently from this. It was probably how it should have been done from the start.
tabBarController.viewControllers = [NSArray arrayWithObjects:[[UINavigationController alloc] initWithRootViewController:self.firstViewController],
[[UINavigationController alloc] initWithRootViewController:self.secondViewController],
[[UINavigationController alloc] initWithRootViewController:self.thirdViewController],
[[UINavigationController alloc] initWithRootViewController:self.forthViewController],
nil];
This maybe what you are needing:
- (void)initTabbar {
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.delegate = self;
/*
You want each of your UIViewControllers to be wrapped in a UINavigationController. Then put each of those UINavigationControllers in a UITabBarController
*/
//You don't need to hang on to this becuase the proceeding UINavigationController will handle it
FirstViewController *firstViewController = [[FirstViewController alloc] ...];
//You'll need to declare this in your header
self.firstNavigationController = [[UINavigationController alloc] initWithRootViewController:firstViewController];
//Second view allocation
SecondViewController *secondViewController = [[SecondViewController alloc] ...];
self.secondNavigationController = [[UINavigationController alloc] initWithRootViewController:secondViewController];
//Third view allocation
ThirdViewController *thirdViewController = [[ThirdViewController alloc] ...];
self.thirdNavigationController = [[UINavigationController alloc] initWithRootViewController:thirdViewController];
//Now you add each of the UINavigationControllers (which is a subclass of UIViewController) to the UITabBarController.
self.tabBarController.viewControllers = [NSArray arrayWithObjects:self.firstNavigationController,
self.secondNavigationController,
self.thirdNavigationController,
nil];
[self.window addSubview:self.tabBarController.view];
[self createNavs];
}
//This is more of a 'formatNavs' now
- (void)createNavs {
//Now you can customize each of the UINavigationController's UINavigationBars seperatly
self.firstNavigationController.navigationBar.backgroundColor = [UIColor colorWithHexString:#"00A3E1"];
self.firstNavigationController.navigationBar.tintColor = [UIColor colorWithHexString:#"00A3E1"];
self.firstNavigationController.navigationBar.barTintColor = [UIColor colorWithHexString:#"00A3E1"];
self.secondNavigationController.navigationBar.backgroundColor = [UIColor colorWithHexString:#"...."];
self.secondNavigationController.navigationBar.tintColor = [UIColor colorWithHexString:#"...."];
self.secondNavigationController.navigationBar.barTintColor = [UIColor colorWithHexString:#"...."];
self.thirdNavigationController.navigationBar.backgroundColor = [UIColor colorWithHexString:#"...."];
self.thirdNavigationController.navigationBar.tintColor = [UIColor colorWithHexString:#"...."];
self.thirdNavigationController.navigationBar.barTintColor = [UIColor colorWithHexString:#"...."];
}
i am new on iOS and i wanna add a navigation bar on my view controller with 2 buttons back on left and subscribe on right. ive got no clue how to do it..till now i have just added a nav bar from interface builder, created a (strong)refrnce for it in .h file and did following coding.
navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 20, 1026, 50)];
[navBar setTintColor:[UIColor clearColor]];
[navBar setBackgroundColor:[UIColor redColor]];
[navBar setDelegate:self];
[self.view addSubview:navBar];
UIBarButtonItem *bi1 = [[UIBarButtonItem alloc] initWithTitle:#"subscribe" style:UIBarButtonItemStyleBordered target:self action:#selector(editBotton)];
bi1.style = UIBarButtonItemStyleBordered;
bi1.tintColor =[UIColor colorWithWhite:0.305f alpha:0.0f];
self.navigationItem.rightBarButtonItem = bi1;
but nothings happeing.. please help
You can add in AppDelegate,
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"MainStoryboard_iPhone"
bundle: nil];
SampleViewController *mainViewController = (SampleViewController*)[mainStoryboard
instantiateViewControllerWithIdentifier: #"SampleViewController"];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:mainViewController];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window setRootViewController:navigationController];
[self.window setBackgroundColor:[UIColor whiteColor]];
[self.window makeKeyAndVisible];
return YES;
}
I think you have to learn the basic concepts about UINavigationController. You can learn from the below tutorials:
http://simplecode.me/2011/09/04/an-introduction-to-uinavigationcontroller/
http://www.ralfebert.de/archive/ios/tutorial_iosdev/navigationcontroller/
http://bharanijayasuri.wordpress.com/2012/12/19/simple-uinavigationcontroller-tutorial-2/