Adding Navigation Bar programmatically iOS
xib method:
tutorial from here
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Create the PlainViewController (and give it a title)
PlainViewController *plainView = [[PlainViewController alloc] initWithNibName:@"PlainViewController" bundle:nil];
[plainView setTitle:@"PlainView"];
// Create the NavRootView controller (and give it a title)
NavRootView *navRoot = [[NavRootView alloc] initWithNibName:@"NavRootView" bundle:nil];
[navRoot setTitle:@"NavRoot"];
// Create our navigation controller using our NavRootView as it's root view
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:navRoot];
// Make an array containing our plain view controller and our navigation controller
NSArray *viewArray = [NSArray arrayWithObjects:plainView, navController, nil];
// Release the views and nav controller
[plainView release];
[navRoot release];
[navController release];
// Create our tab bar controller
UITabBarController *tabbarController = [[UITabBarController alloc] init];
// Tell the tab bar controller to use our array of views
[tabbarController setViewControllers:viewArray];
// Finally, add the tabbar controller as a subview of the app window
[window addSubview:[tabbarController view]];
[self.window makeKeyAndVisible];
return YES;
}
only code:
howto-implement-uinavigationcontroller-uitabbarcontroller-programmatically
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
/* Initialize window view */
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
/* Initialize tab bar controller, add tabs controllers */
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [self initializeTabBarItems];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return (YES);
}
- (NSArray *)initializeTabBarItems
{
NSArray * retval;
/* Initialize view controllers */
ViewController1 * viewController1 = [[ViewController1 alloc] init];
ViewController2 * viewController2 = [[ViewController2 alloc] init];
ViewController3 * viewController3 = [[ViewController3 alloc] init];
ViewController4 * viewController4 = [[ViewController4 alloc] init];
ViewController5 * viewController5 = [[ViewController5 alloc] init];
/* Initialize navigation controllers */
UINavigationController * navigationController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
UINavigationController * navigationController2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
UINavigationController * navigationController3 = [[UINavigationController alloc] initWithRootViewController:viewController3];
UINavigationController * navigationController4 = [[UINavigationController alloc] initWithRootViewController:viewController4];
UINavigationController * navigationController5 = [[UINavigationController alloc] initWithRootViewController:viewController5];
/* Stuff Navigation Controllers into return value */
retval = [NSArray arrayWithObjects:viewController1,viewController2,viewController3,viewController4,viewController5,nil];
return (retval);
}
storyboard:
storyboards-tutorial-in-ios-7
In Objective-C
UINavigationBar* navigationbar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, UIApplication.sharedApplication.statusBarFrame.size.height, self.view.frame.size.width, 50)];
UINavigationItem* navigationItem = [[UINavigationItem alloc] initWithTitle:@"Title"];
[navigationbar setItems:@[navigationItem]];
[self.view addSubview:navigationbar];
In Swift
let navigationBar = UINavigationBar(frame: CGRect(x: 0, y: UIApplication.shared.statusBarFrame.size.height, width: view.frame.size.width, height:44))
let navigationItem = UINavigationItem()
navigationItem.title = "Title"
navigationBar.items = [navigationItem]
self.view.addSubview(navigationBar)
-(void)ViewDidLoad
{
UINavigationBar* navbar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 50)];
UINavigationItem* navItem = [[UINavigationItem alloc] initWithTitle:@"karthik"];
// [navbar setBarTintColor:[UIColor lightGrayColor]];
UIBarButtonItem* cancelBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(onTapCancel:)];
navItem.leftBarButtonItem = cancelBtn;
UIBarButtonItem* doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(onTapDone:)];
navItem.rightBarButtonItem = doneBtn;
[navbar setItems:@[navItem]];
[self.view addSubview:navbar];
}
-(void)onTapDone:(UIBarButtonItem*)item{
}
-(void)onTapCancel:(UIBarButtonItem*)item{
}
Swift3
let navigationBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height:44)) // Offset by 20 pixels vertically to take the status bar into account
navigationBar.backgroundColor = UIColor.white
// Create a navigation item with a title
let navigationItem = UINavigationItem()
navigationItem.title = "Title"
// Create left and right button for navigation item
let leftButton = UIBarButtonItem(title: "Save", style: .plain, target: self, action: #selector(ViewController.btn_clicked(_:)))
let rightButton = UIBarButtonItem(title: "Right", style: .plain, target: self, action: nil)
// Create two buttons for the navigation item
navigationItem.leftBarButtonItem = leftButton
navigationItem.rightBarButtonItem = rightButton
// Assign the navigation item to the navigation bar
navigationBar.items = [navigationItem]
// Make the navigation bar a subview of the current view controller
self.view.addSubview(navigationBar)
func btn_clicked(_ sender: UIBarButtonItem) {
// Do something
}
Swift
// Create the navigation bar
let navigationBar = UINavigationBar(frame: CGRectMake(0, 0, self.view.frame.size.width, 44)) // Offset by 20 pixels vertically to take the status bar into account
navigationBar.backgroundColor = UIColor.whiteColor()
navigationBar.delegate = self;
// Create a navigation item with a title
let navigationItem = UINavigationItem()
navigationItem.title = "Title"
// Create left and right button for navigation item
let leftButton = UIBarButtonItem(title: "Save", style: UIBarButtonItemStyle.Plain, target: self, action: "btn_clicked:")
let rightButton = UIBarButtonItem(title: "Right", style: UIBarButtonItemStyle.Plain, target: self, action: nil)
// Create two buttons for the navigation item
navigationItem.leftBarButtonItem = leftButton
navigationItem.rightBarButtonItem = rightButton
// Assign the navigation item to the navigation bar
navigationBar.items = [navigationItem]
// Make the navigation bar a subview of the current view controller
self.view.addSubview(navigationBar)
func btn_clicked(sender: UIBarButtonItem) {
// Do something
}