I have a TabBar with ViewController in it. I do this in my AppDelegate. So I have one UINavigationController
test1ViewController = [[Test1ViewController alloc] init];
test2ViewController = [[Test2ViewController alloc] init];
test3ViewController = [[Test3ViewController alloc] init];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController: test2ViewController];
NSArray* controllers = [NSArray arrayWithObjects: test1ViewController, navigationController, test3ViewController, nil];
[self.tabBarController setViewControllers:controllers animated:YES];
[navigationController release];
Now I have the problem with this line of source code:
[(Test2ViewController *)[appDelegate.myTabBarController selectedViewController] methodName:arg1 withTag:arg2];
Here there will be a SIGBRT, because the selectedViewController is in this case an "UINavigationController". But I want to call a method of the "Test2ViewController". How could I do this?
Normally I also do this:
if([[appDelegate.myTabBarController selectedViewController] isKindOfClass:[Test2ViewController class]]) { ... }
But this also fail because it is a UINavigationController. How to fix that? Does anyone know?
Thanks a lot in advance & Best Regards.
Try the following:
UINavigationController *navController = (UINavigationController *) [appDelegate.myTabBarController selectedViewController];
Test2ViewController *viewController = (Test2ViewController *) [[navController viewControllers] objectAtIndex: 0];
[viewController methodName:arg1 withTag:arg2];
Related
In a UITabBarController, upon selecting a tab, I want that tab's UIViewController to change (assign a new viewcontroller). I'm trying this-
NSMutableArray *tabBarViewControllers = [myUITabBarController.viewControllers mutableCopy];
[tabbarViewControllers replaceObjectAtIndex:0 withObject:[[myViewcontroller1 alloc] init]];
[myUITabBarController setViewControllers:tabbarViewControllers];
But it gives error. How to assign a new UIViewController and refresh instantly?
This is based on femina's answer but doesn't require you to build the whole array of view controllers, it just lets you replace an existing view controller with another. In my case I wanted to swap in a different xib file for the iPhone 5 screen:
if ([[UIScreen mainScreen] bounds].size.height == 568) {
NSMutableArray *viewControllers = [NSMutableArray arrayWithArray:self.tabBarController.viewControllers];
Tracking *tracking568h = [[Tracking alloc] initWithNibName:#"Tracking-568h" bundle:nil];
tracking568h.title = [[viewControllers objectAtIndex:0] title];
tracking568h.tabBarItem = [[viewControllers objectAtIndex:0] tabBarItem];
[viewControllers replaceObjectAtIndex:0 withObject:tracking568h];
[tracking568h release];
[self.tabBarController setViewControllers:viewControllers animated:FALSE];
}
This changes the view controller for the first tab, keeping the same tab icon and label.
Please see this code , it offers 2 tabbar's with navigation.
In the AppDelegate.h please declare
UINavigationController *nav1;
UINavigationController *nav2;
UITabBarController *tab;
And in the Appdelegate.m , in the didFinishLaunchingWithOptions please add:-
tab = [[UITabBarController alloc]init];
ViewController *view1 = [[ViewController alloc]init];
nav1= [[UINavigationController alloc]initWithRootViewController:view1];
UITabBarItem *tab1 = [[UITabBarItem alloc]initWithTitle:#"Add" image:[UIImage imageNamed:#"Plus.png"] tag:1];
view1.title = #"Add";
[view1 setTabBarItem:tab1];
SettingsViewController *view2 = [[SettingsViewController alloc]init];
nav2= [[UINavigationController alloc]initWithRootViewController:view2];
UITabBarItem *tab2 = [[UITabBarItem alloc]initWithTitle:#"Setting" image:[UIImage imageNamed:#"settings.png"] tag:2];
view2.title = #"Setting";
[view2 setTabBarItem:tab2];
tab.viewControllers = [NSArray arrayWithObjects:nav1,nav2,nil];
self.window.backgroundColor = [UIColor whiteColor];
self.window.rootViewController = tab;
Also check this link for further implementation ... Hope this helps :)
UItabBar changing View Controllers
In the AppDelegate.h
UIViewController *vc1;
UIViewController *vc2;
UIViewController *vc3;
in the Appdelegate.m
in the didFinishLaunchingWithOptions
NSMutableArray *listOfViewControllers = [[NSMutableArray alloc] init];
vc1 = [[UIViewController alloc] init];
vc1.title = #"A";
[listOfViewControllers addObject:vc1];
vc2 = [[UIViewController alloc] init];
vc2.title = #"B";
[listOfViewControllers addObject:vc2];
vc3 = [[UIViewController alloc] init];
vc3.title = #"C";
[listOfViewControllers addObject:vc3];
[self.tabBarController setViewControllers:listOfViewControllers
animated:YES];
I have a UIViewController with two UITableView's in it. When i select a row in the first UITableView it has to push the same UIViewController which doesnt happen.
In UIViewController.h i have,
FirstTableViewController *firstController;
SecondTableViewController *secondController;
In UIViewController.m i have,
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
if (firstController == nil) {
firstController = [[FirstTableViewController alloc] init];
}
if (secondController == nil) {
secondController = [[SecondTableViewController alloc] init];
}
UINavigationController *firstNavigationController = [[UINavigationController alloc] initWithRootViewController:firstController];
firstController.product = self.product;
[firstTable setDataSource:firstController];
[firstTable setDelegate:firstController];
firstNavigationController.view = firstController.tableView;
}
In FirstTableViewController.m, didSelectRowAtIndexPath i have,
[self.searchDisplayController setActive:YES animated:YES];
UIViewController *controller = [[UIViewController alloc]initWithNibName:#"UIViewController" bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:controller];
navController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
controller.product = prod;
NSLog(#"Navigation controller is %#",self.navigationController); //not null
[[self navigationController]pushViewController:controller animated:YES];
Please help.
EDIT #1: UIViewController is called from the FlipsideViewController of the UtilityApp.
Add a property to your AppDelegate UINavigationController *nav
add this line to AppDelegate.m in application didFinishLaunching method
navigationControl = [[UINavigationController alloc] initWithRootViewController:yourFirst ViewController];
Go to yourFirstViewController, add an UINavigationController *nav property and add these lines to viewDidLoad method
AppDelegate *app = [[UIApplication sharedApplication] delegate];
self.nav = app.nav;
Use this line to push any viewController
[self.nav pushViewController:controller animated:YES];
If you want to show a view controller modally, you should use presentViewController:animated:completion: and not pushViewController:animated:.
[self presentViewController:controller animated:YES completion:nil];
Use this Code in "didSelectRowAtIndexPath"
UIViewController *controller = [[UIViewController alloc]initWithNibName:#"UIViewController" bundle:nil];
[self.navigationController pushViewController:controller animated:YES];
[viewController release];
LoginViewSimpleController *loginViewSimple = [[LoginViewSimpleController alloc]init];
UINavigationController *navController = [[UINavigationController alloc]initWithRootViewController:loginViewSimple];
[self setNavigationController:navController];
Have you identify both tableviews ? Can you Post log status here ?
I am making an application which will have 3 pages
Login Page - first page after the app loads
My First Page- when user successfully logs in then he comes into this page.This page
contains a UITabBar with two UITabBarItems. The first one is connected to
My firstPage
and the other one to My Second Page.
My Second Page - this is another UIViewController.
I have made the login page but I am unable to find the solution to UITabBar adding in My First Page
Please help me out
Define
AppDelegate.h
#property (strong, nonatomic) UITabBarController *tabBarController;
in AppDelegate.m
didFinishLaunchingWithOptions
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.delegate=self;
self.tabBarController.selectedIndex=0;
self.tabBarController.delegate=self;
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController{
return YES;
}
now when you get success login write below code in that method
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
delegate.tabBarController = [[UITabBarController alloc] init];
delegate.tabBarController.selectedIndex = 0;
delegate.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, nil];
delegate.tabBarController.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self.navigationController pushViewController:delegate.tabBarController animated:YES];
Try this out,
suppose this is LoginViewController.m
-(IBAction)loginButtonClicked:(id)sender
{
[self createTabBarView];
}
//Create TabBar View here
-(void)createTabBarView
{
NSMutableArray *tabItems = [NSMutableArray array];
UIViewController *firstViewController = [[FirstViewController alloc] init];;
firstViewController = #"First View";
firstViewController = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemContacts tag:0];
[tabItems addObject:firstViewController];
UIViewController *secondViewController = [[SecondViewController alloc] init];;
secondViewController = #"Second View";
secondViewController = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemContacts tag:1];
[tabItems addObject:secondViewController];
self.tabBarController = [[UITabBarController alloc]init];
self.tabBarController.viewControllers = tabItems;
self.tabBarController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:tabBarController animated:YES];
}
Thanks,
Nikhil.
Are you using interface builder?
From my point of view, I'd rather like to use programmatic way to implement it.
//In the appDidFinishLaunch method
BOOL loggedIn = [[NSUserDefault standDefault]boolForKey:"userlogin"];
if(loggedIn)
{
//Setup your UITabbarViewController
}
else
{
//Setup your loginView Controller
}
After login in LogInViewController
- (void)didLogin
{
YourAppDelegate *delegate = [UIApplication shareApplication].delegate;
[delegate.window addSubView:self.tabBarViewController.view];
[delegate.window removeSubView:self.view]
//Other Config
}
You should create Tabbar at place where you can identify that login is successfully done. This method should be part of your loginViewController.
Create a function like below to create a Tabbar and present it over loginController.
-(void) createTabBarController
{
UITabBarController *tabBar = [[UITabBarController alloc]init];
UIViewController *firstViewController = [[[UIViewController alloc] init]autorelease];
UINavigationController *firstNavController = [[UINavigationController alloc]initWithRootViewController:firstViewController];
firstNavController.tabBarItem.title=#"First Controller";
firstNavController.tabBarItem.image = [UIImage imageNamed:#"first.png"];
UIViewController *secondViewController = [[[UIViewController alloc] init]autorelease];
UINavigationController *secondNavController = [[UINavigationController alloc]initWithRootViewController:secondViewController];
secondNavController.tabBarItem.title=#"First Controller";
secondNavController.tabBarItem.image = [UIImage imageNamed:#"first.png"];
[tabBar setViewControllers:[NSArray arrayWithObject:firstNavController,secondNavController,nil]];
[firstNavController release];
[secondNavController release];
[self presentModalViewController: tabBar];
[tabBar release];
}
I need to add a UINavigationController to a UIViewController,and don't use appDelegate.In my Controller I write like this
OneViewController *oneVC = [[OneViewControlelr alloc] initWithNibName:nil bundle:nil];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:oneVC];
[self presendModalViewController:nav];
and it nothing to found.
It should be
[self presentModalViewController: nav animated:YES];
For more info, please visit UIViewController documentation
Try this :
OneViewController *oneVC = [[OneViewControlelr alloc] initWithNibName:#"OneViewControlelr" bundle:nil];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:oneVC];
[self presentModalViewController: nav animated:YES];
if you dnt want navigationcontroller just try this
OneViewController *oneVC = [[OneViewControlelr alloc] initWithNibName:#"xibname" bundle:nil];
[self presendModalViewController:oneVC animated:YES];
[oneVC release];
if u want navigationController try this code
OneViewController *oneVC = [[OneViewControlelr alloc] initWithNibName:#"xibname" bundle:nil];
UINavigationController *navigationController=[[UINavigationController alloc] initWithRootViewController:oneVC];
[self presendModalViewController:navigationController animated:YES];
[oneVC release];
[navigationController release];
Just do like this in AppDelegate.m file
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
SoapWebServiceViewController *root = [[SoapWebServiceViewController alloc] initWithNibName:nil bundle:nil];
nav = [[UINavigationController alloc] initWithRootViewController:root];
// Add the view controller's view to the window and display.
[self.window addSubview:nav.view];
}
Hope this help U
OneViewController *oneVC = [[OneViewControlelr alloc] initWithNibName:nil bundle:nil];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:oneVC];
AppDelegate *appDelegate=(AppDelegate*)[[UIApplication sharedApplication]delegate];
[[[appDelegate <viewController>]view] removeFromSuperview]; // put UIViewController reference into <viewController>
[[appDelegate window]addSubview:[[appDelegate nav]view]];
I have a window based app. I added two viewcontrollers and one Tabbarcontroller to that. Now I want to navigate each viewcontroller to next view. I tried but can't find the solution. Can anyone please help me?
When you add the tab bar on window, add like this-
NSMutableArray * viewControllers = [[NSMutableArray alloc]init];
FirstViewController * firstViewController = [[FirstViewController alloc]initWithNibName:#"FirstViewController" bundle:nil];
UINavigationController * nvc = [[UINavigationController alloc] initWithRootViewController:firstViewController];
[firstViewController release];
[viewControllers addObject:nvc];
[nvc release];
SecondViewController * secondViewController = [[SecondViewController alloc]initWithNibName:#"SecondViewController" bundle:nil];
nvc = [[UINavigationController alloc] initWithRootViewController:secondViewController];
[secondViewController release];
[viewControllers addObject:nvc];
[nvc release];
UITabBarController * tabBarController = [[UITabBarController alloc] init];
tabBarController.viewControllers = viewControllers;
[window addSubview:tabBarController.view];
EDIT -
Whenever you want to navigate in any one of the controller. All you need is to call
[self.navigationController pushViewController:anotherViewController animated:YES];
And you will get exactly what you want. :)
UINavigationController *urNavController = [[UINavigationController alloc] initWithRootViewController:rootController];
If you want to show this on the window
[window addSubview:urNavController.view];
use like this
secondViewController *obj=[[[secondViewController alloc] initWithNibName:#"secondViewController" bundle:nil] autorelease];
UINavigationController *navBar=[[UINavigationController alloc] initWithRootViewController:obj];
[self.navigationController pushViewController:navBar animated:YES];
[navBar release];