I want to add a tab Bar Controller to my current App Flow. Currently I have a page with a button which on clicking opens a new viewcontroller with a web view where the user logs in and after login I want to take him to his home Page where the navigation bar has his name and a logout button in the right. The home page should also have a tab bar with 3 different tabs. I am able to load the home page view from the webview and get the navigation bar. But I am unable to add the tabBar and get it working. I am confused as to where to add the code for adding TabBar. I am using the below code to add tab bar -
UITabBarController *tabBar = [[UITabBarController alloc] init];
HomeViewController *home = [[PPHomeViewController alloc] initWithUserName:[self.userInfo objectForKey:@"name"] Email:[self.userInfo objectForKey:@"email"] Phone:[self.userInfo objectForKey:@"phone_number"]];
home.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:1];
UINavigationController *homeNavController = [[UINavigationController alloc]initWithRootViewController:home];
RequestViewController *req = [[RequestMoneyViewController alloc]init];
req.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:2];
UINavigationController *reqNavController = [[UINavigationController alloc]initWithRootViewController:req];
UIViewController *thirdViewController = [[UIViewController alloc]init];
thirdViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:3];
UINavigationController *thirdNavController = [[UINavigationController alloc]initWithRootViewController:thirdViewController];
UIViewController *fourthViewController = [[UIViewController alloc]init];
thirdViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:3];
UINavigationController *fourthNavController = [[UINavigationController alloc]initWithRootViewController:fourthViewController];
tabBar.viewControllers = [[NSArray alloc] initWithObjects:homeNavController, reqNavController, thirdNavController, fourthNavController, nil];
tabBar.delegate=self;
tabBar.selectedIndex=0;
UIImageView *homeImg=[[UIImageView alloc]initWithFrame:CGRectMake(0, 432, 80, 49)];
homeImg.tag=11;
homeImg.image=[UIImage imageNamed:@"footer"];
UIImageView *reqImg=[[UIImageView alloc]initWithFrame:CGRectMake(81, 432,80, 49)];
reqImg.tag=12;
reqImg.image=[UIImage imageNamed:@"footer"];
UIImageView *sendImg=[[UIImageView alloc]initWithFrame:CGRectMake(162, 432,80, 49)];
sendImg.tag=13;
sendImg.image=[UIImage imageNamed:@"footer"];
UIImageView *localImg=[[UIImageView alloc]initWithFrame:CGRectMake(243, 432, 80, 49)];
localImg.tag=14;
localImg.image=[UIImage imageNamed:@"footer"];
[tabBar.view addSubview:homeImg];
[tabBar.view addSubview:reqImg];
[tabBar.view addSubview:sendImg];
[tabBar.view addSubview:localImg];
[[[UIApplication sharedApplication]keyWindow]addSubview:tabBar.view];
Currently I have put the above code in the viewDidLoad of a ViewController TabViewController which extends UITabBarController. In my webView controller I have put the following code -
TabViewController *tab=[[TabViewController alloc] init];
tab.userInfo=userInfo;
[self presentViewController:tab animated:YES completion:nil];
But the app crashes as soon as I click any tab other than the one already open. Please Help.
The way I've done this in the past is to create a UITabBarController
subclass that contains all of the tabBar
creation code you have above.
Then use your UINavigationController
to push the tabBar
subclass to the screen.
Here's a sample of my UITabBarController
subclass:
- (void)viewDidLoad {
[super viewDidLoad];
UIViewController *view1 = [[UIViewController alloc] init];
UIViewController *view2 = [[UIViewController alloc] init];
UIViewController *view3 = [[UIViewController alloc] init];
NSMutableArray *tabViewControllers = [[NSMutableArray alloc] init];
[tabViewControllers addObject:view1];
[tabViewControllers addObject:view2];
[tabViewControllers addObject:view3];
[self setViewControllers:tabViewControllers];
//can't set this until after its added to the tab bar
view1.tabBarItem =
[[UITabBarItem alloc] initWithTitle:@"view1"
image:[UIImage imageNamed:@"view1"]
tag:1];
view2.tabBarItem =
[[UITabBarItem alloc] initWithTitle:@"view2"
image:[UIImage imageNamed:@"view3"]
tag:2];
view3.tabBarItem =
[[UITabBarItem alloc] initWithTitle:@"view3"
image:[UIImage imageNamed:@"view3"]
tag:3];
}