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iOS

Posted by wasiq aftab
wasiq aftab
1,994 Points

TableView Controller + Tab bar Controller

What is the way to use multiple buttons on root view controller linked with different tab views in Xcode 4.5?

I have got 4 buttons on the home screen, I want the flow to go as, when I tap on a button1 it should go to tab1 similarly when I tap on button 2 ,tab2 should be open.

I have tried to use >

  • (IBAction)button1:(id)sender { self.tabBarController.selectedIndex = 0; } But it is not working properly, kindly give solution or helping links Much appreciated

1 Answer

Ben Jakuben
STAFF
Ben Jakuben
Treehouse Teacher
Ben Jakuben
Ben Jakuben
Treehouse Teacher

Your code about setting the selectedIndex seems like the appropriate way to solve this problem. Can you paste in your whole header and implementation files for us to review? What currently happens when you tap on the button?

It may depend on how your tab and navigation controllers are arranged. Which is first? Is the tab bar embedded in the nav controller or vice versa?

wasiq aftab
wasiq aftab
1,994 Points

i am trying another approach, i have set up a tabbar controller programmatically, then i added a new class called rootViewController, i want to set it as root and it would contain the four buttons which would point to four different tabs, but its just showing a blank screen even though the rootViewController has a label and it has no error.

this is my AppDelegate.m 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.tabBarController = [[UITabBarController alloc] init];
self.rootViewController = [[UIViewController alloc] init];
UIViewController *viewController1 = [[FirstViewController alloc] init];
UIViewController *viewController2 = [[SecondViewController alloc] init];
self.tabBarController.viewControllers=[NSArray arrayWithObjects:viewController1,viewController2, nil];
self.window.rootViewController = self.rootViewController;
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}

please help.

Ben Jakuben
Ben Jakuben
Treehouse Teacher
Ben Jakuben
Ben Jakuben
Treehouse Teacher

Naming a class "rootViewController" is quite confusing - that term refers to the view controller at the root of your current navigation stack. Can you rename it to something more appropriate?

I think your original code was probably close, but this latest code doesn't have enough for me to go on. Can you restart with something simple, like add a tab bar controller in a storyboard and configure the FirstViewController with 4 buttons? Make sure that works. Then add two more tabs. Make sure that works. Then try and get one button working to switch to one of the other tabs. If you do it piece by piece then you can pinpoint smaller errors.