relaunch the iphone app by AppDelegate programmatically - iphone

I'm new in iPhone, I created application that is started with UITabbarController with 4 items using AppDelegate. through the app I opened some views and I want to relaunch the AppDelegate again by using a code like:
[appdelegate presentModalViewController:myNavController animated:YES];
is this possible?
this is in my AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
NSMutableArray *array = [[NSMutableArray alloc] init];
MaktabatyTableViewController *own = [[MaktabatyTableViewController alloc] initWithStyle:UITableViewStylePlain];
UINavigationController *ownNavController = [[UINavigationController alloc] initWithRootViewController:own];
[array addObject:ownNavController];
NewestTableViewController *newest = [[NewestTableViewController alloc] initWithStyle:UITableViewStylePlain];
UINavigationController *newestNavController = [[UINavigationController alloc] initWithRootViewController:newest] ;
[array addObject:newestNavController];
MostBuyTableViewController *mostbuy = [[MostBuyTableViewController alloc] initWithStyle:UITableViewStylePlain];
UINavigationController *mostbuyNavController = [[UINavigationController alloc] initWithRootViewController:mostbuy];
[array addObject:mostbuyNavController];
FreeBooksTableViewController *free = [[FreeBooksTableViewController alloc] initWithStyle:UITableViewStylePlain];
UINavigationController *freeNavController = [[UINavigationController alloc] initWithRootViewController:free];
[array addObject:freeNavController];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = array;
[self.window setBackgroundColor:[UIColor whiteColor]];
[self.window addSubview:self.tabBarController.view];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
Thanks in advance.

I think you are looking for something like this..
A login screen which is a simple view with login fields, upon login, this screen is of no use. And the main app is based on tab bar.
And a Logout screen or A screen showing after user signed out.
I had this requirement in one of my app, so i made a sample template. May be it helps you checkout this.

Related

Strange behavior with UITableViewController and tabbed navigation

I have an application in which the requirement is to have sections laid out in tabbed format. Under one of the tabs, there will be a table view that has a segue to a detail view. When I setup this transition outside of the tabbed navigation, it works. however, when I try to do this within the tabbed navigation, I get a runtime error and crash. Is there a known issue of trying to have a tableview with segues loaded by a tab?
Thanks! Viv
Following is simple example for How can you use UITabBarController
Firsts Create all object of UIViewController and UINavigationController in AppDelegate.h file and use following method of AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window=[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds ]];
self.viewCon=[[ViewController alloc] init];
self.navCon=[[UINavigationController alloc] initWithRootViewController:self.viewCon];
self.navCon.navigationBar.tintColor=[UIColor blackColor];
self.viewCon.title=#"First View";
self.fView=[[FirstViewController alloc] init];
self.FnavCon=[[UINavigationController alloc] initWithRootViewController:self.fView];
self.FnavCon.navigationBar.tintColor=[UIColor blackColor];
self.fView.title=#"Secound View";
self.sView=[[SecoundViewController alloc] init];
self.SnavCon=[[UINavigationController alloc] initWithRootViewController:self.sView];
self.SnavCon.navigationBar.tintColor=[UIColor blackColor];
self.sView.title=#"Third View";
.
.
// create UIViewController and UINavigationController As you need
.
.
.
UIImage *img1=[UIImage imageNamed:#"Australia.gif"];
self.tbItem1=[[UITabBarItem alloc] initWithTitle:#"First Page" image:img1 tag:1];
self.viewCon.tabBarItem=self.tbItem1;
UIImage *img2=[UIImage imageNamed:#"Cameroon.gif"];
self.tbItem2=[[UITabBarItem alloc] initWithTitle:#"Secound Page" image:img2 tag:2];
self.fView.tabBarItem=self.tbItem2;
UIImage *img3=[UIImage imageNamed:#"Canada.png"];
self.tbItem3=[[UITabBarItem alloc] initWithTitle:#"Third Page" image:img3 tag:3];
self.sView.tabBarItem=self.tbItem3;
NSMutableArray *viewArr=[[NSMutableArray alloc] init];
[viewArr addObject:self.navCon];
[viewArr addObject:self.FnavCon];
[viewArr addObject:self.SnavCon];
self.tbCon=[[UITabBarController alloc] init];
self.tbCon.viewControllers=viewArr;
[self.window addSubview:tbCon.view];
[self.window makeKeyAndVisible];
return YES;
}

Add a navigation bar in the app delegates

I have a problem in my appdelegate. I want to add a navigation bar, but it doesn't work.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.tabBarController = [[UITabBarController alloc] init];
UniversViewController *universViewController = [[UniversViewController alloc] initWithNibName:#"ProduitsListinTableViewController" bundle:nil];
universViewController.title = #"univers";
CategoriesViewController *categoriesViewController = [[CategoriesViewController alloc] initWithNibName:#"ProduitsListinTableViewController" bundle:nil];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:categoriesViewController];
navigationController.title = #"categories";
[navigationController setNavigationBarHidden:NO];
ProduitsListinTableViewController *produitListe = [[ProduitsListinTableViewController alloc] initWithNibName:#"ProduitsListinTableViewController" bundle:nil];
produitListe.title = #"troisième";
_tabBarController.viewControllers = [NSArray arrayWithObjects:universViewController, categoriesViewController, produitListe, nil];
[self.window setRootViewController:_tabBarController];
[self.window makeKeyAndVisible];
return YES;
}
Do I have to add something in UniversViewController, CategoriesViewController and ProduitsListinTableViewController or this is directly in the appdelegate?
Try this code:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
UIViewController *viewController1, *viewController2,*viewController3,*viewController4,*viewController5;
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone)
{
viewController1 = [[[HomeViewController alloc] initWithNibName:#"HomeViewController" bundle:nil] autorelease];
navController=[[UINavigationController alloc] initWithRootViewController:viewController1];
viewController2 = [[[SearchViewController alloc] initWithNibName:#"SearchViewController" bundle:nil] autorelease];
navController2=[[UINavigationController alloc] initWithRootViewController:viewController2];
viewController3 = [[[LocationsViewController alloc] initWithNibName:#"LocationsViewController" bundle:nil] autorelease];
navController3=[[UINavigationController alloc] initWithRootViewController:viewController3];
viewController4 = [[[CallViewController alloc] initWithNibName:#"CallViewController" bundle:nil] autorelease];
navController4=[[UINavigationController alloc] initWithRootViewController:viewController4];
viewController5 = [[[MyBookingsViewController alloc] initWithNibName:#"MyBookingsViewController" bundle:nil] autorelease];
navController5=[[UINavigationController alloc] initWithRootViewController:viewController5];
}
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navController,navController2,navController3,navController4,navController5,nil];
//self.window.rootViewController =self.navController;
self.window.rootViewController=self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
I always follow this approach when I have both a UINavigationController and a UITabbarController:
You need to start with a view based application. And then create a UITabbarController in your appDelegate file.
Appdelegate.h
UITabBarController *tabBarController;
// set properties
Appdelegate.m
// Synthesize
tabBarController = [[UITabBarController alloc] init];
tabBarController.delegate=self;
// Adding Search,Nearby,Map,AboutUs,Favorites Tabs to tabBarController
Search * search = [[Search alloc] init];
UINavigationController *searchNav = [[UINavigationController alloc] initWithRootViewController:search];
Nearby* nearby = [[Nearby alloc] init];
UINavigationController *nearbyNav = [[UINavigationController alloc] initWithRootViewController:nearby];
Map* map = [[Map alloc] init];
UINavigationController *mapNav = [[UINavigationController alloc] initWithRootViewController:map];
AboutUs* aboutUs = [[AboutUs alloc] init];
UINavigationController *aboutUsNav = [[UINavigationController alloc] initWithRootViewController:aboutUs];
Favorites* favorites = [[Favorites alloc] init];
UINavigationController *favoritesNav = [[UINavigationController alloc] initWithRootViewController:favorites];
NSArray* controllers = [NSArray arrayWithObjects:searchNav,nearbyNav,mapNav,aboutUsNav,favoritesNav, nil];
tabBarController.viewControllers = controllers;
[window addSubview:tabBarController.view];
You can accordingly manage in which tab you want to place navigation controller or only a view controller.
Then in each of the view controllers mentioned above you need to implement
- (id)init {}
in which you can set Tab name and image.
I always follow this approach and it never fails. The tabs are always visible. You can make changes according to your code.

xcode tab bar customizable

I was wondering if there is a tutorial or any hints for this tab bar customization, when you select a tab bar and hold you can change the icons to user liking sort of like this (check the bottom).
[TAB] http://tapbots.com/software/tweetbot/
Use UIGestures
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController *tabController = [[UITabBarController alloc] init];
UIViewController *viewController1 = [[UIViewController alloc] init];
// UIlongtapGusture alloc and add it to viewController1
UIViewController *viewController2 = [[UIViewController alloc] init];
// UIlongtapGusture alloc and add it to viewController2
UIViewController *viewController3 = [[UIViewController alloc] init];
// UIlongtapGusture alloc and add it to viewController3
UIViewController *viewController4 = [[UIViewController alloc] init];
// UIlongtapGusture alloc and add it to viewController4
tabController.viewControllers = [NSArray arrayWithObjects:viewController1,
viewController2,
viewController3,
viewController4, nil];
self.window.rootViewController = tabController;
[self.window makeKeyAndVisible];
return YES;
}
see the customization of the tab-bar here

NavigationBar not appearing with TTThumbsViewController in UITabBarController

I'm trying to put a TTThumbsViewController inside a UITabBarController, but when I do, the TTThumbsViewController's NavigationBar doesn't show. There is just blank space where the NavigationBar should be. I've loaded just the TTThumbsViewController by itself, and the NavigationBar loads just fine. I'm sure I've just missed a setting, but I can't figure out what it is.
Here is what I'm doing to create the UITabBarController and the TTThumbsViewController:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.tabBarController = [[UITabBarController alloc] init];
ThumbsViewController *thumbsViewController = [[ThumbsViewController alloc] init];
UITabBarItem *thumbsTabBarItem = [[UITabBarItem alloc] initWithTitle:#"Thumbs" image:[UIImage imageNamed:#"icon.png"] tag:Thumbs];
thumbsViewController.tabBarItem = thumbsTabBarItem;
self.tabBarController.viewControllers = [NSArray arrayWithObjects:thumbsViewController, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
If you're loading the TTThumbsViewController from a UITabController, you need to create the UINavigationController yourself.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.tabBarController = [[UITabBarController alloc] init];
ThumbsViewController *thumbsViewController = [[ThumbsViewController alloc] init];
UITabBarItem *thumbsTabBarItem = [[UITabBarItem alloc] initWithTitle:#"Thumbs" image:[UIImage imageNamed:#"icon.png"] tag:Thumbs];
thumbsViewController.tabBarItem = thumbsTabBarItem;
UINavigationController *navController = [[[UINavigationController alloc] initWithRootViewController:ThumbsViewController] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navController, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}

How to Use TabBarViewController with a NavigationController

I know I can do this
[self.navigationController pushViewController:self.someUITabBarController animated:YES];
And that means putting UITabBarController on a navigationgController somehow
What about if I want someUITabBarController to be the first controller (the one located on the lowest level) of navigationController?
I simply cannot change the rootViewController of the NavigationController into someUITabBarController
Erm not sure this is what you want. Below this code will be put under the - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions in you "appDelegate" class.
UITabBarController *tabController = [[UITabBarController alloc] init];
UIViewController *viewController1 = ...
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController1];
NSArray *controllers = [NSArray arrayWithObjects:navigationController, nil]; // can add more if you want
[tabController setViewControllers:controllers];
// this is for custom title and image in the tabBar item
navigationController.tabBarItem.title = #"abc";
[navigationController.tabBarItem setImage:[UIImage imageNamed:#"abc.png"]];
self.window.rootViewController = tabController; // or [self.window addSubview: tabController.view];
[self.window makeKeyAndVisible];
I am not sure if this works. But try this,
UINavigationController *navCont = [[UINavigationController alloc] init];
[navCont pushViewController:navCont animated:NO];