I used a TabBar in my iPhone application and integrated it programmatically.
I have several TabBarItems in it and every click will load a XYZ-ViewController with a corresponding XYZ-View.xib.
Now I use to have a screen with the TabBar and a NavBar with SearchBar and a segmented control like in this example of Apple:
http://developer.apple.com/iphone/library/samplecode/TableSearch/index.html
But in this example, there is not a TabBar and copy the source into my project causes the problem, that I did the loading in XViewController.m viewDidLoad method:
// Add create and configure the navigation controller.
MyAppDelegate *myAppDelegate = [[UIApplication sharedApplication] delegate];
// Add create and configure the navigation controller.
UINavigationController * navigationController = [[UINavigationControlleralloc] initWithRootViewController:self];
myAppDelegate.navController = navigationController;
[navigationController release];
[myAppDelegate.window addSubview:myAppDelegate.navController.view];
The effect is, that there is a toolbar with the correct title, but there is no searchbar and no TabBar at the bottom.
Could anyone give me a hint what's wrong here?
I solved the problem:
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:test2ViewController];
NSArray* controllers = [NSArray arrayWithObjects:test1ViewController, navigationController, test3ViewController, nil];
[self.myTabBarController setViewControllers:controllers];
Related
i am using the following code to present a modal View but still my navigation bar is hiding behind the status bar.
I can only see half of my Navigation bar ..
Plz point out my error and Suggest me the solution to it.
tabBarController = [[UITabBarController alloc]init ];
UINavigationController *cntrol = [[UINavigationController alloc] initWithRootViewController:tabBarController];
NSArray* controllers = [NSArray arrayWithObjects:firstNav,secondNav,thirdNav,fourthNav,fifthNav, nil];
tabBarController.viewControllers = controllers;
tabBarController.selectedIndex=type;
[self presentModalViewController:cntrol animated:NO];
here firstNav, secondNav,thirdNav, fourthNav and fifthNav are the instatnces of UINavigationController.
TabBarControllers are not meant to live inside navigation controllers, but each tab of a TabBarController can be a NavigationController. I've never tried to display a TabBarController modally but I suppose it should work. Switch the nesting of the TabBarController/NavigationController and it should work.
I'm having trouble initializing a viewcontroller when the app loads in my app delegate. The viewcontroller loads okay, but it overlaps the tabbar that I have at the bottom. Do I need to create another viewcontroller and have it load into that in the app delegate? I currently have a tabBarController set up in my MainWindow.xib, which contains Navigation controllers and inside those are viewControllers.
Here is my code...
In my didFinishLaunchingWithOptions I have:
sub = [[SubGabViewController alloc] initWithNibName:#"SubGabViewController" bundle:nil];
nav = [[UINavigationController alloc] initWithRootViewController:sub];
[window addSubview:nav.view];
Should it be something like?
sub = [[SubGabViewController alloc] initWithNibName:#"SubGabViewController" bundle:nil];
nav = [[UINavigationController alloc] initWithRootViewController:sub];
[newViewController.view addSubview:nav.view];
Thanks!
If you're trying to use a UITabBarController, each tab has its own root view controller (these can even be UINavigationController objects). Assuming you have a property for self.tabBarController (I think this gets created by default in Xcode if you are doing a tab-bar app), then:
sub = [[SubGabViewController alloc] initWithNibName:#"SubGabViewContrller" bundle:nil];
nav = [[UINavigationContoller alloc] initWithRootViewController:sub];
[self.tabBarController setViewControllers:[NSArray arrayWithObject:nav] animated:NO];
self.window.rootViewController = self.tabBarController;
// Clean up memory here... only if you don't need references to them
[sub release];
[nav release];
With setViewControllers:animated: you should probably include additional view controllers in the NSArray, otherwise you'll end up with a tab bar only containing one item!
[window addSubview:tabBarController.view]; would be right......
Rather than adding navigation controller using code..... you should add it from Interface Builder.... in interface builder remove the tabBarItem and add a navigationController on it and then set viewController for that navigation controller..........
create an outlet of tabBarController in appDelegate so that you can add it on window. Pleas do not forget to make connection between components in Interface Builder.
Thanks,
So, I'm having some issues with my implementation of the Three20 TTLauncherView. I am using their code, not a fork (although I have heard of rodmaz's version), and I can't get it to work properly. This is what my app looks like.
alt text http://img709.imageshack.us/img709/8792/screenshot20100715at409.png
I removed the icon image, that's not the issue. The issue is, at the top there is no Navigation bar at all, and I believe also causes the white strip at the bottom, which appears to have the same dimensions as a Nav Bar. I've spent quite a while looking through their code and can't figure this out at all. It looks like their Navigation bar (as seen in their Catalog example app) stems from the TTTableViewController, or something further up. However, my app starts like the Facebook app does, not into a table, but into the TTLauncherView. So... how do I get the Navigation bar into my TTLauncher view, if it goes "App Delegate -> TTLauncherView Subclass"
Thanks for your help!
Edit:
Added the code I used. I put this in my app delegate, wrapping my first view with the UINavigation Controller, and it worked just as I wanted!
MainViewController *aController = [[MainViewController alloc] initWithNibName:nil bundle:nil]; //my Main view
self.mainViewController = aController;
[aController release]; //release for Memory Management
self.mainViewController.view.frame = [UIScreen mainScreen].applicationFrame;
UINavigationController *navigationController = [[UINavigationController alloc] init];
[navigationController pushViewController:self.mainViewController animated:NO]; //Gets the main view on the screen
[window addSubview:navigationController.view];
You simply wrap the view with a navigation bar before you push the new view. As an example, here is a snippet of my code where I present a modal view controller with a navigation bar.
- (IBAction) showNewNavView: (id) sender
{
// Present it as a modal view and wrap the controller in a navigation controller to provide a navigation bar for the Edit and Save buttons
ModalViewController *addController = [[ModalViewController alloc] initWithNibName:#"ModalViewController" bundle:nil];
addController.delegate = self;
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addController];
navigationController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
[self presentModalViewController:navigationController animated:YES];
[navigationController release];
[addController release];
}
If you want to add any buttons or set the title of it, you need to do that in the viewDidLoad method of the view that you are pushing (i.e. your TTLauncher view)
I'm relatively new to objective c but not programming and am stuck with my iphone app.
I created a nav based app with both a navbar and a tab bar controller. I set the tab bar as the root controller. I'm able to switch between each tab without any issues to various UIViews and UITableViews.
My issue is that in one of my UITableViews that I call from the TabBarController, didSelectRowAtIndexPath function is suppose to display a new UIView. The below code does not give any errors and runs fine but does not show the new Nib.
if(newViewController == nil) {
NSLog(#"yes nil");
BookViewController *aNewViewController = [[BookViewController alloc] initWithNibName:#"BookOptionView" bundle:nil];
self.newViewController = aNewViewController;
[aNewViewController release];
}
BookAppDelegate *delegate = (BookAppDelegate *)[[UIApplication sharedApplication] delegate];
[delegate.appNavBar pushViewController:newViewController animated:YES];
Now when I do the below, it works fine but it gets rid of the nav and tab which I'm assuming because its a modal call instead of pushing the view controller.
BookViewController *screen = [[BookViewController alloc] initWithNibName:#"BookOptionView" bundle:[NSBundle mainBundle]];
screen.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
[self presentModalViewController:screen animated:YES];
[screen release];
Any ideas why I can't get the View Controller to push correctly? In my application delegate file, I declared an AppNavBarController object (inherit from UINavigationController) called appNavBar.
Any help would be appreciated!
If you want to present your view as a modal view with nav controller, you can do it as below:
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:myViewController];
[self presentModalViewController:navigationController animated:YES];
Also, from what I see, you have your navcontroller in your appdelegate. So I guess you are using a global navcontroller for all your tab views, which ideally shouldn't be the case. Your navcontroller should be within your tab controller and preferably you need to have different nav controllers in different tabs.
I actually found my answer. I'm not sure I understand why my code above doesn't work but the following accomplishes what I want:
[self.navigationController pushViewController:newControllerName animated:YES];
So, I want my app starts with a UIViewController(without seeing a tabbar), and then enter a UITableView with navigationbar and tabbar. the problem is that the Tabbar is visible at the app starts up, anyone can help on this will be very appreciated...
I think you should either send -presentModalViewController:animated: to your main UIViewController with the tab bar controller as an argument or just do this:
[myWindow addSubview: myTabBarController.view];
Make your app a navigation based application (rather than a tab bar based one) then add a tab bar on the UITableView.
There is help for adding the UITabBar here
I do it like this : in this case drawing a table view and map view (From the Locati application)
tabBarController = [[UITabBarController alloc] init]; // creates your tab bar so you can add everything else to it
searchTableViewController = [[SearchTableViewController alloc] init]; // creates your table view - this should be a UIViewController with a table view in it, or UITableViewController
UINavigationController *searchTableNavController = [[[UINavigationController alloc] initWithRootViewController:searchTableViewController] autorelease];
[searchTableViewController release]; // creates your table view's navigation controller, then adds the view controller you made. Note I then let go of the view controller as the navigation controller now holds onto it
searchMapViewController = [[SearchMapViewController alloc] init];
UINavigationController *mapTableNavController = [[[UINavigationController alloc] initWithRootViewController:searchMapViewController] autorelease];
[searchMapViewController release]; // does exactly the same as the first round, but for your second tab at the bottom of the bar.
tabBarController.viewControllers = [NSArray arrayWithObjects:searchTableNavController, mapTableNavController, nil]; //add both of your navigation controllers to the tab bar. You can put as many controllers on as you like
I found this pattern a long time ago. Sorry that I can't point at the original.
YOu then need to add the tabbarcontoller to the relevant view ([...view addSubView:tabBarController];) possibly setting frame first.