I have a tabbarController:
UITabBarController* tabBarController = [[UITabBarController alloc] init];
UIViewController* view1 = [[UIViewController alloc] init];
UIViewController* view2 = [[UIViewController alloc] init];
tabBarController.viewControllers = [NSArray arrayWithObjects:view1, view2, nil];
I want to add a long press gesture to view1's tab button(called tabBarItem)
or just add a long press gesture to the tabbar.
How could I do?
Thanks. Any advice would be appreciated.
Just put your UITabbarController Methods
UITabBarController *tabBarController = [[UITabBarController alloc] init];
and than use this for add gesture->
UILongPressGestureRecognizer *longRecog = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:#selector(longPressed)];
[tabBarController.tabBar addGestureRecognizer:longRecog];
and the selector is -
-(void)longPressed{
//Long pressed Occures
}
Related
I am new in Xcode. I have viewcontroller with a navigation tabbar with items. I need that one on this menu item calls a splitview with master/detail. Is possible create a splitview in a view and not necessary in appdelegate? In appdelegate I have create one splitview, but if an option on menu.
Is possible to put this code in a the view that i clic the barbutton? The code used is:
detallContactesAccions = [[[CrmContactesAccionesDetallVC alloc] init] initWithNibName:#"CrmContactesAccionesDetallVC" bundle:nil];
masterContactesAccions = [[CrmContactesAccionesMasterTVC alloc] initWithStyle:UITableViewStylePlain];
masterContactesAccions.detailViewController = detallContactesAccions;
masterContactesAccions.navigationItem.title = NSLocalizedString(#"Acciones",#"");
UINavigationController *navMaster = [[[UINavigationController alloc] initWithRootViewController:masterContactesAccions] autorelease];
UINavigationController *navDetail = [[[UINavigationController alloc] initWithRootViewController:detallContactesAccions] autorelease];
splitViewController = [[UISplitViewController alloc] init];
//splitViewController.tabBarItem = controller.tabBarItem;
[splitViewController setValue:[NSNumber numberWithFloat:300.0] forKey:#"_masterColumnWidth"]; //Dóna més amplada a l'split view
splitViewController.viewControllers = [NSArray arrayWithObjects:navMaster, navDetail, nil];
splitViewController.delegate = detallContactesAccions;
I have this pretty standard Tab Bar Controller setup:
UIViewController *homeViewController = [[PLOTHomeViewController alloc] init];
UIViewController *upcomingViewController = [[PLOTUpcomingViewController alloc] init];
UIViewController *checkInViewController = [[PLOTCheckInViewController alloc] init];
UIViewController *watchlistViewController = [[PLOTWatchlistViewController alloc] init];
UIViewController *profileViewController = [[PLOTProfileViewController alloc] init];
PLOTNavigationController *homeNavVC = [[PLOTNavigationController alloc] initWithRootViewController:homeViewController];
PLOTNavigationController *upcomingNavVC = [[PLOTNavigationController alloc] initWithRootViewController:upcomingViewController];
PLOTNavigationController *checkInNavVC = [[PLOTNavigationController alloc] initWithRootViewController:checkInViewController];
PLOTNavigationController *watchlistNavVC = [[PLOTNavigationController alloc] initWithRootViewController:watchlistViewController];
PLOTNavigationController *profileNavVC = [[PLOTNavigationController alloc] initWithRootViewController:profileViewController];
self.tabBarController = [[PLOTTabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:homeNavVC, upcomingNavVC, checkInNavVC, watchlistNavVC, profileNavVC, nil];
However, I'm trying to work out how, when the user selects the middle tab (checkInViewController), I can present that View Controller modally (fullscreen)? I'd maybe imagine something in the viewDidAppear method in that VC, but I'm not sure if you can present yourself modally, if you're a VC? What's the best approach for this?
You can use
[self presentViewController:checkInViewController animated:YES completion:nil];
Then hide the tab and navigation bars in the destination view controller's viewWillAppear:
-(void)viewWillAppear:(BOOL)animated {
[self.navigationController setNavigationBarHidden:YES animated:YES];
[self.tabBarController.tabBar setHidden:YES];
}
This question already has an answer here:
Showing login view controller before main tab bar controller
(1 answer)
Closed 9 years ago.
Im beginner to IOS app development learning.
I have a login screen as my first view controller and i need the second view controller to be a tab bar view controller .with 4 different tabs and i have 4 different XIB's for them.
some one help me to go ahead.
Best way you can do is Present the login screen modally when the app starts from your tab bar controller first screen, add code for presenting login screen in viewWillAppear and after login dismiss the screen. You can create TabBarController in appDelegate like this
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UITabBarController tabBarController=[[UITabBarController alloc] init];
FirstViewController *firstVC = [[UIViewController alloc] initWithNibName:#"FirstVC" bundle:nil];
UINavigationController *firstNavController = [[UINavigationController alloc] initWithRootViewController: firstVC];
SecondViewController *secondVC = [[UIViewController alloc] initWithNibName:#"secondVC" bundle:nil];
UINavigationController *secondNavController = [[UINavigationController alloc] initWithRootViewController:secondVC];
tabBarController.viewControllers = [NSArray arrayWithObjects: firstNavController, secondNavController, nil];
tabBarController.selectedIndex=0;
tabBarController.delegate = self;
UITabBarItem *item1 = [[UITabBarItem alloc] initWithTitle:#"Movies" image:[UIImage imageNamed:#"MoviesTAB.png"] tag:1];
[firstVC setTabBarItem:item1];
UITabBarItem *item2 = [[UITabBarItem alloc] initWithTitle:#"Music" image:[UIImage imageNamed:#"musicTAB.png"] tag:2];
[seconfVC setTabBarItem:item2];
tabController.tabBar.translucent = NO;
tabController.tabBar.barStyle = UIBarStyleBlack;
tabBarController.tintColor = [UIColor whiteColor];
self.window.rootViewController = tabController;
return YES;
}
Best way is use storyboard and there just have one initial UIViewController and from that make segue to UITabBarViewController.
http://youtu.be/a_DCTSTv1Mw
If you want to make it through xib make a UITabBarViewController and add viewControllers to the array of object of that UITabBarViewController's object.
Sample code :
NSMutableArray *arrViewControllers = [[NSMutableArray alloc] init];
UIViewController *tabController;
UIImage *tabImage ;
NSString *tabTitle;
for (int i= 0; i < 3; i++) {
switch (i) {
case 0:
tabController = [[ViewController alloc] init];
tabImage = [UIImage imageNamed:#"icon1.png"];
tabTitle = #"Text";
break;
case 1:
tabController = [[ImageDemoViewController alloc] init];
tabImage = [UIImage imageNamed:#"icon2.png"];
tabTitle = #"Image";
break;
case 2:
tabController = [[TableDemoViewController alloc] init];
tabImage = [UIImage imageNamed:#"icon3.png"];
tabTitle = #"Table";
break;
}
// set the image and title using some properties of UIViewController
tabController.tabBarItem.image = tabImage;
tabController.tabBarItem.title = tabTitle;
//add objects to array
[arrViewControllers addObject:tabController];
[tabController release];
}
_baseController = [[UITabBarController alloc] init];
_baseController.viewControllers = arrViewControllers;
[arrViewControllers release];
go to your appDelegate
1.create a viewController for login screen.
LoginViewController *viewController1 = [[LoginViewController alloc] initWithNibName:#"LoginViewController" bundle:nil];
2.create a navigationController with root view your login ViewController.
UINavigationController *nVC = [[UINavigationController alloc] initWithRootViewController:viewController1];
3.make navigationController to root view of window.
self.window.rootViewController = self.nVC;
[self.window makeKeyAndVisible];
Now go to Touch-Up-Inside method of login button in LoginViewController.
1.After validation of password and userId initialise your viewControllers for tabbar and TabbarViewController.
UiViewController ...*yourViewControllers,..,
UITabBarController *YourtabBarController = [[UITabBarController alloc] init];
2.Now add these viewControllers to your tabbarController.
YourtabBarController.viewControllers = #[ YourViewController1,YourViewController2,YourViewController3,......];
3.Finally push this tabbarController to navigationControllere.
[self.navigationController pushViewController:YourtabBarController animated:NO];
Is there a way to reorder tabs of a TabBar programmatically on xCode?
Thank you a lot, Matteo!
Try this:
- (void)applicationDidFinishLaunching:(UIApplication *)application {
tabBarController = [[UITabBarController alloc] init];
MyViewController* vc1 = [[MyViewController alloc] init];
MyOtherViewController* vc2 = [[MyOtherViewController alloc] init];
NSArray* controllers = [NSArray arrayWithObjects:vc1, vc2, nil];
tabBarController.viewControllers = controllers;
// Add the tab bar controller's current view as a subview of the window
[window addSubview:tabBarController.view];
}
I have the following TabBarController with the uiTabBarItems
[Item1, Item2, Item3, Item4]
This struct works fine (Every ViewController is displayed correctly), my problem is:
When I change to another ViewController from Item1, Item2 ... the TabBarItems bottom are hidden/lose
[, , , ]
I'm using the following code to change of viewController from Item1 ViewController
NewViewController *controller = [[NewViewController alloc]init];
[self.tabBarController setViewControllers:[[NSArray alloc] initWithObjects:controller, nil]];
is correct change of viewcontroller with the code showed previously?
EDIT.-
Basically I want to navigate on ViewControllers of Item1 (UITabBar) without lost the UITabBarItems
If you want to set the active tab, you should't use setViewControllers: since that replaces all your tabs. You should use setSelectedIndex: on your UITabBarController instead.
Try this.
call this method , where to present UITabBar
In .h,
#property (strong, nonatomic) UINavigationController *navigation;
#property(nonatomic, strong) UITabBarController *tabbarcontroller;
In .m,
-(void)loadtabview
{
self.tabbarcontroller = [[UITabBarController alloc] init];
NSMutableArray *localControllersArray = [[NSMutableArray alloc] initWithCapacity:4];
self.firstViewController = [[FirstViewController alloc]initWithNibName:#"firstViewController" bundle:nil];
navigation = [[UINavigationController alloc] initWithRootViewController:self.firstViewController];
self.viewController.navigationItem.title=#"First";
[localControllersArray addObject:navigation];
self.secondViewController = [[secondViewController alloc] initWithNibName:#"secondViewController" bundle:nil];
navigation = [[UINavigationController alloc] initWithRootViewController:secondViewController];
self.secondViewController.navigationItem.title=#"second";
[localControllersArray addObject:navigation];
self.ThirdViewController = [[Third ViewController alloc]initWithNibName:#"Third ViewController" bundle:nil];
navigation = [[UINavigationController alloc] initWithRootViewController:ThirdViewController];
self.secondViewController.navigationItem.title=#"Third";
[localControllersArray addObject:navigation];
tabbarcontroller.viewControllers = localControllersArray;
self.tabbarcontroller.delegate = self;
[self.tabbarcontroller setSelectedIndex:0];
[self.window addSubview:tabbarcontroller.view];
}