In my tab based application delegate i added the navigation controller as like the following,
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
UIViewController *viewController3 = [[view1 alloc] initWithNibName:#"view1" bundle:nil];
UIViewController *viewController4 = [[view2 alloc] initWithNibName:#"view2" bundle:nil];
UIViewController *viewController5 = [[view3 alloc] initWithNibName:#"view3" bundle:nil];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[viewController1, viewController2,viewController3,viewController4,viewController5];
navigationController=[[UINavigationController alloc]initWithRootViewController:self.tabBarController];
[self.window addSubview:[navigationController view]];
self.window.rootViewController = self.navigationController;
i would not be able to added the title in each view. While adding it doesn showing the title?Pls help me to resolve this issue
use bellow code...
Here i add UINavigationController to every tab and also assign title for tab and also for UINavigationBar like bellow...
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
UIViewController *viewController1, *viewController2, *viewController3, *viewController4, *viewController5;
UINavigationController *navviewController1 , *navviewController2, *navviewController3, *navviewController4, *navviewController5;
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
viewController1 = [[[YourViewController1 alloc] initWithNibName:#"YourViewController1" bundle:nil] autorelease];
navviewController1=[[UINavigationController alloc]initWithRootViewController:viewController1];
navviewController1.title = #"Home";
// navviewController1.navigationBarHidden=YES;
viewController2 = [[[YourViewController2 alloc] initWithNibName:#"YourViewController2" bundle:nil] autorelease];
navviewController2=[[UINavigationController alloc]initWithRootViewController:viewController2];
// navviewController2.navigationBarHidden=YES;
navviewController2.title = #"HowItsWork";
viewController3 = [[[YourViewController3 alloc] initWithNibName:#"YourViewController3" bundle:nil] autorelease];
navviewController3=[[UINavigationController alloc]initWithRootViewController:viewController3];
// navviewController3.navigationBarHidden=YES;
navviewController3.title = #"Join Us";
viewController4 = [[[YourViewController4 alloc] initWithNibName:#"YourViewController4" bundle:nil] autorelease];
navviewController4=[[UINavigationController alloc]initWithRootViewController:viewController4];
// navviewController4.navigationBarHidden=YES;
navviewController4.title = #"Become";
viewController5 = [[[YourViewController5 alloc] initWithNibName:#"YourViewController5" bundle:nil] autorelease];
navviewController5=[[UINavigationController alloc]initWithRootViewController:viewController5];
// navviewController4.navigationBarHidden=YES;
navviewController5.title = #"Contact Us";
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navviewController1, navviewController2,navviewController3,navviewController4,navviewController5, nil];
self.window.rootViewController = self.tabBarController;
}
[self.window makeKeyAndVisible];
}
2)OR
Also you can simple assign title in your particular class like bellow...
-(void)viewWillAppear:(BOOL)animated{
self.title = #"yourTitle";
}
i hope this helpful to you...
Go to viewdidload method in every tabbar controller & use line:
navigationController.title=#"hello";
In every viewcontroller viewdidload
self.navigationcontroler.title=#"firstVC";
"title" is the property of UIViewController and UINavigationController is the subclass of UIViewController you can also access it object of UINavigationController, just like navviewController.title = #"myTitle"; and for more detail check Apple Docs. Hope it will help. Cheers
You have added TabBar Controller inside a Navigation Controller so you cannot add title and arises this issue.
Try to add each navigation controller with View controller inside tabbar controller.
I mean add ur ViewController as a root View controller of navigation controller then add to tab Bar controller.
viewController1 = [[[YourViewController1 alloc] initWithNibName:#"YourViewController1" bundle:nil] autorelease];
navviewController1=[[UINavigationController alloc]initWithRootViewController:viewController1];
Now then ad this navigation controller inside to tabbar controller. Do this for all other viewcontrollers
Related
My app has a first page containing a UITabBarController and tabBar.
But when I pushViewController to UINavigationController , my UITabBarController is not showing.
appdelegate:
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
anasayfaViewController * firstTab= [[anasayfaViewController alloc] initWithNibName:#"anasayfaViewController" bundle:nil];
SehirRehberiViewController *sehirRehberi = [[SehirRehberiViewController alloc] initWithNibName:#"SehirRehberiViewController" bundle:nil];
duyuruViewController *duyuru = [[duyuruViewController alloc] initWithNibName:#"duyuruViewController" bundle:nil];
sikayetViewController *sikayet = [[sikayetViewController alloc] initWithNibName:#"sikayetViewController" bundle:nil];
digerViewController *diger = [[digerViewController alloc] initWithNibName:#"digerViewController" bundle:nil];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[firstTab,sehirRehberi,duyuru,sikayet,diger];
navigationController=[[UINavigationController alloc]initWithRootViewController:self.tabBarController];
self.window.rootViewController = self.navigationController;
// [self.window addSubview:self.navigationController.view];
[self.window makeKeyAndVisible];
return YES;
firstTab viewcontroller have button and click events:
-(void)btnClick:(id)sender
{
[self.navigationController pushViewController:haberler animated:NO];
}
when I click UIViewController it is opening, but not showing UITabBarController. How can I solve this problem?
You have UITabBarController as rootViewController of your UINavigationController. And UINavigationController as root Controller of your app. Instead of that you have to set UITabBarController as root Controller of your App and add UINavigationController in each tab.
Check this answer.
You should try using my following snippet
anasayfaViewController * firstTab= [[anasayfaViewController alloc] initWithNibName:#"anasayfaViewController" bundle:nil];
UINavigationController *firstNav = [[UINavigationController alloc] initWithRootViewController:firstTab];
SehirRehberiViewController *sehirRehberi = [[SehirRehberiViewController alloc] initWithNibName:#"SehirRehberiViewController" bundle:nil];
UINavigationController *secondNav = [[UINavigationController alloc] initWithRootViewController:sehirRehberi];
// object for tabbarviewcontroller
self.tab.viewControllers = [NSArray arrayWithObjects:firstNav,secondNav,nil];
I've shown you the sample for two tabs inside tabbarcontroller. You can customise it as per your need.
Enjoy Programming!
First thing is that you need to create Array of Your All view-controller(Navigation Controller) like
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navigationController2,navigationController1,navigationController3,nil];
and
you need to set Winodw's Rootviewcontroller is
[self.window setRootViewController:tabBarController]; not a Navigationcontroller
As par you Code example:-
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
anasayfaViewController * firstTab= [[anasayfaViewController alloc] initWithNibName:#"anasayfaViewController" bundle:nil];
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:firstTab];
SehirRehberiViewController *sehirRehberi = [[SehirRehberiViewController alloc] initWithNibName:#"SehirRehberiViewController" bundle:nil];
UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:sehirRehberi];
duyuruViewController *duyuru = [[duyuruViewController alloc] initWithNibName:#"duyuruViewController" bundle:nil];
UINavigationController *navigationController3 = [[UINavigationController alloc] initWithRootViewController:duyuru];
sikayetViewController *sikayet = [[sikayetViewController alloc] initWithNibName:#"sikayetViewController" bundle:nil];
UINavigationController *navigationController4 = [[UINavigationController alloc] initWithRootViewController:sikayet];
digerViewController *diger = [[digerViewController alloc] initWithNibName:#"digerViewController" bundle:nil];
UINavigationController *navigationController5 = [[UINavigationController alloc] initWithRootViewController:diger];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[navigationController1,navigationController2,navigationController3,navigationController4,navigationController5];
[self.window setRootViewController:tabBarController];
[self.window makeKeyAndVisible];
return YES;
UPDATE:-
If you want to TabbarController adding at button Click for NextViewcontroller then you can do with something different way like Bellow :-
For example you have loginScreen while app lonch and it login button click you need to push a view-controller and that View-controller contain those Tabbar.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
LoginViewcontroller *objLogin = [[LoginViewcontroller alloc] initWithNibName:#"LoginViewcontroller" bundle:nil];
self.navigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];
return YES;
}
In loginViewcontroller LoginButton action:-
-(IBAction)LoginSuccess
{
anasayfaViewController * firstTab= [[anasayfaViewController alloc] initWithNibName:#"anasayfaViewController" bundle:nil];
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:firstTab];
SehirRehberiViewController *sehirRehberi = [[SehirRehberiViewController alloc] initWithNibName:#"SehirRehberiViewController" bundle:nil];
UINavigationController *navigationController2 = [[UINavigationController alloc] initWithRootViewController:sehirRehberi];
duyuruViewController *duyuru = [[duyuruViewController alloc] initWithNibName:#"duyuruViewController" bundle:nil];
UINavigationController *navigationController3 = [[UINavigationController alloc] initWithRootViewController:duyuru];
sikayetViewController *sikayet = [[sikayetViewController alloc] initWithNibName:#"sikayetViewController" bundle:nil];
UINavigationController *navigationController4 = [[UINavigationController alloc] initWithRootViewController:sikayet];
digerViewController *diger = [[digerViewController alloc] initWithNibName:#"digerViewController" bundle:nil];
UINavigationController *navigationController5 = [[UINavigationController alloc] initWithRootViewController:diger];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[navigationController1,navigationController2,navigationController3,navigationController4,navigationController5];
[self.navigationController pushViewController:self.tabBarController animated:YES];
}
I've been looking at programatically adding a tab bar to my view controller because having a scroll view I can't place it on without it being in the middle of my view. I'm abit confused about how to add it. Does it need to be initiated in my ViewDidLoad method or my AppDelegate?
If I have:
UITabBarController *tabBar = [[UITabBarController alloc] init];
[self.view addSubview:tabBar.view];
[tabBar release];
How can I allocate it to the bottom of my scrollview?
Thanks!
Now in my appDelegate class :
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.viewController = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
UITabBarController *tabBarController = [[UITabBarController alloc] init];
ViewController* vc = [[ViewController alloc] init];
NSArray* controllers = [NSArray arrayWithObjects:vc, tabBarController, nil];
tabBarController.viewControllers = controllers;
[_window addSubview:tabBarController.view];
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
return YES;
}
It's crashing and not sure if it's a release I'm missing.
Edit:
For anyone else wondering this in Appdelegate.m:
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = #[viewController1, viewController2, viewController3, viewController4];
Take a look at this Documentation given by Apple: ViewControllers.
Sample Code :
- (void)applicationDidFinishLaunching:(UIApplication *)application {
UITabBarController *tabBarController = [[UITabBarController alloc] init];
FirstViewController* vc1 = [[FirstViewController alloc] init];
SecondViewController* vc2 = [[SecondViewController 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 did it this way. I copied this from my App Delegate and it works fine. Basically you add the view controllers to the tab bar then add the tab bar to the window's subview.
Instantiate the instance
iVacationTabBar = [[UITabBarController alloc] init];
However you create the views/view controllers:
UINavigationController *rvc_tools = [[UINavigationController alloc] initWithRootViewController: vc_tools];
UINavigationController *rvc_settings = [[UINavigationController alloc] initWithRootViewController: vc_settings];
UINavigationController *rvc_about = [[UINavigationController alloc] initWithRootViewController: vc_about];
UINavigationController *rvc_currentpage = [[UINavigationController alloc] initWithRootViewController: vc_currentpage];
UINavigationController *rvc_backup = [[UINavigationController alloc] initWithRootViewController:vc_backup];
Add the controllers to the array:
NSArray* controllers = [NSArray arrayWithObjects: rvc_currentpage, rvc_tools,rvc_settings, rvc_backup, rvc_about, nil];
Set the array of view controllers to your tab bar:
[iVacationTabBar setViewControllers: controllers animated:NO];
Add the tab bar to the window's subview.
[_window addSubview:iVacationTabBar.view];
You can not add a UITabbarController on a UIViewController. Instead, on a ViewController you have to show the TabbarController, create a TabbarController, set ViewControllers for it, and add it to a Window.
I have created a custom navigation controller in appDelegate :
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
poemsView = [[[PoemsViewController alloc]initWithNibName:#"PoemsViewController" bundle:nil] autorelease];
self.navigationController = [[[UINavigationController alloc] initWithRootViewController:poemsView] autorelease];
self.navigationController.navigationBarHidden = YES;
self.viewController = [[[ViewController alloc] initWithNibName:#"ViewController" bundle:nil] autorelease];
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];
so the problem is I need my app lunches from viewController , but if I set my viewController as rootviewController , my navigation controller does not push navigation and vice versa , if set my navigation controller as a root , app does not load from menus or main view controller .
Why you Creating Poemsview as rootviewcontroller of Navigation Controller ?
if You Want To Load ViewController First Then use the following Code.
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
self.viewController = [[[ViewController alloc] initWithNibName:#"ViewController" bundle:nil] autorelease];
poemsView = [[[PoemsViewController alloc]initWithNibName:#"PoemsViewController" bundle:nil] autorelease];
self.navigationController = [[[UINavigationController alloc] initWithRootViewController:self.viewController] autorelease];
self.navigationController.navigationBarHidden = YES;
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];
You Can Create Another Navigation Controller as a Sub-class of Viewcontroller.
In your Poem Button Action Add The Following :
// Create a regular view controller.
PoemViewController *modalViewController = [[[PoemViewController alloc] initWithNibName:#"PoemViewController" bundle:nil] autorelease];
// Create a navigation controller containing the view controller.
UINavigationController *secondNavigationController = [[UINavigationController alloc] initWithRootViewController:modalViewController];
// Present the navigation controller as a modal view controller on top of an existing navigation controller
[self presentModalViewController:secondNavigationController animated:YES];
Now You can be able push To detail View from Your tableview DidselectRowAtindexpath .
I have an activation page in my app, which is mandatory for every user to activate the app.
Once the app is activated, the user moves to the tabbed bar view.
I have created a tabbed bar application, where from my activationView on click of button I am trying to call the tab bar, I am getting an entire black screen.
- (IBAction)moveToActivateView:(id)sender {
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
UITabBarController *tabBarController = [[UITabBarController alloc]init];
[self.view addSubview:tabBarController.view];
appDelegate.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
self.tabBarController.viewControllers = #[viewController1, viewController2];
appDelegate.window.rootViewController = self.tabBarController;
[appDelegate.window makeKeyAndVisible];}
Hey make your tabBarController's property in appDelegate and assign all ViewController there then call your tabBarController from yourViewController
in AppDelegate.h
#property (nonatomic, retain) IBOutlet UINavigationController *navigationController;
#property (retain, nonatomic) IBOutlet UITabBarController *tabBarController;
in AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[self makeTabBar];
[self addInitialVIew];
[self.window makeKeyAndVisible];
return YES;
}
-(void)makeTabBar
{
tabBarController = [[UITabBarController alloc] init];
tabBarController.delegate=self;
FirstViewController *firstVC =[[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UINavigationController *firstNC = [[UINavigationController alloc] initWithRootViewController:firstVC];
firstNC.tabBarItem.title=#"Profile";
firstVC.tabBarController.tabBar.tag = 0;
SecondViewController *secondVC = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
UINavigationController *SecondNavController = [[UINavigationController alloc] initWithRootViewController:secondVC];
SecondNavController.tabBarItem.title = #"Search";
secondVC.tabBarController.tabBar.tag = 1;
NSArray *viewControllers =[[NSArray alloc]initWithObjects:firstNC,SecondNavController, nil];
[tabBarController setViewControllers:viewControllers animated:NO];
}
-(void) addInitialVIew
{
InitialViewController *initialViewController = [[InitialViewController alloc]initWithNibName:#"InitialViewController" bundle:nil];
navigationController = [[UINavigationController alloc]initWithRootViewController:ViewController];
[self.window addSubview:navigationController.view];
}
Now in InitialViewController you can add yourTabBar and remove InitialViewController
- (IBAction)switchToTabBarBtnPress:(id)sender
{
AppDelegate *appdelegte =(AppDelegate*)[[UIApplication sharedApplication]delegate];
[[[appdelegte navigationController] view]removeFromSuperview];
[[appdelegte window]addSubview:[[appdelegte tabBarController]view]];
[[appdelegte tabBarController]setSelectedIndex:0];
}
And Follow my answer
Answer
You want to create dynamic tabbar application to resolve your problem. So you just create the view based application. in the view controller viewdidload method put these code
tabbar1 = [[UITabBarController alloc] init];
artist_tab_obj = [[artist_tab alloc] initWithNibName:#"artist_tab" bundle:nil];
UINavigationController *tabItem1 = [[[UINavigationController alloc] initWithRootViewController: artist_tab_obj] autorelease];
tabItem1.title=#"Artist";
tabItem1.tabBarItem.image=[UIImage imageNamed:#"Icon1.png"];
music_tab_obj = [[music_tab alloc] initWithNibName:#"music_tab" bundle:nil];
UINavigationController *tabItem2 = [[[UINavigationController alloc] initWithRootViewController: music_tab_obj] autorelease];
tabItem2.title=#"Music";
tabItem2.tabBarItem.image=[UIImage imageNamed:#"Icon2.png"];
shout_tab_obj = [[shout_tab alloc] initWithNibName:#"shout_tab" bundle:nil];
UINavigationController *tabItem3 = [[[UINavigationController alloc] initWithRootViewController: shout_tab_obj] autorelease];
tabItem3.title=#"Shout";
tabItem3.tabBarItem.image=[UIImage imageNamed:#"Icon3.png"];
schedule_tab_obj = [[schedule_tab alloc] initWithNibName:#"schedule_tab" bundle:nil];
UINavigationController *tabItem4 = [[[UINavigationController alloc] initWithRootViewController: schedule_tab_obj] autorelease];
tabItem4.title=#"Schedule";
tabItem4.tabBarItem.image=[UIImage imageNamed:#"Icon4.png"];
follow_tab_obj = [[follow_tab alloc] initWithNibName:#"follow_tab" bundle:nil];
UINavigationController *tabItem5 = [[[UINavigationController alloc] initWithRootViewController: follow_tab_obj] autorelease];
tabItem5.title=#"Follower";
tabItem5.tabBarItem.image=[UIImage imageNamed:#"Icon5.png"];
tabbar1.viewControllers = [NSArray arrayWithObjects:tabItem1, tabItem2,tabItem3,tabItem4,tabItem5,nil];
In user acceptation is yes button action call this code.
[self.view insertSubview:tabbar1.view belowSubview: artist_tab_obj.view];
tabbar1.selectedIndex=1;
[self presentModalViewController:tabbar1 animated:YES];
Did you realize that your local varialbe tabBarController is not identical but sort of hides the property self.tabBarController? You create a new UITabBarCotnroller and assign it to your local variable tabBarController, which is accessible from this method only. Then you manipulate (add newly created view controllers) etc to self.tabBarController. Self.tabBarController could easily be nil here or anything else. But it is not the very UITabBarController that you just created.
And it is self.tabBarController (so probably nil) what you assign to the window as rootViewController.
You do add the tabBarController's view as subview to self.view. Besides that I do not know what self acutally is, I don't think is it really nessessary to manually add the tabBar's view as subview. Setting the root view controller (properly) should be enough
I want to show modal view in the start of the app but it doesn't appear. This is my code:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[self initDataBase];
CustomerModel *customer = [[[CustomerPersistor alloc] init] getLoggedCustomer];
self.window.rootViewController = self.tabBarController;
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
UIViewController *profileViewController = [[[ProfileViewController alloc] initWithNibName:#"ProfileViewController" bundle:nil] autorelease];
profileViewController.title = #"Profile";
UINavigationController *profileNavigation = [[[UINavigationController alloc] initWithRootViewController:profileViewController] autorelease];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:profileNavigation, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
if(customer == nil) { NSLog(#"HO");
ViewController *login = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
//login.delegate = self.tabBarController.view;
[self.viewController presentModalViewController:[[ViewController alloc] initWithNibName:#"ViewController" bundle:nil] animated:YES];
}
return YES;
}
How can I fix it?
First, there doesn't appear to be a self.viewController property that is set, and you're instantiating the same "ViewController" twice. This is all wrong:
ViewController *login = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
//login.delegate = self.tabBarController.view;
[self.viewController presentModalViewController:[[ViewController alloc] initWithNibName:#"ViewController" bundle:nil] animated:YES];
Try moving this code to your viewDidLoad of your profileViewController...i.e. let the TabBarController load along with its first tab's view controller.
Initiate an instanse from the model view like this:
modelView = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
Please follow the list below:
Set the viewController model presented style
[modelView setModalPresentationStyle:UIModalPresentationPageSheet];
Then present it using:
[self.viewController presentModalViewController:floorView animated:YES];
Then, set the size and location of the model controller like this:
modelView.view.superview.bounds = CGRectMake(0, 0, 700, 550);//it's important to do this after presentModalViewController
modelView.view.superview.center = self.view.superview.center;//self.view assumes the base view is doing the launching, if not you might need self.view.superview.center etc.
Hope this help you.