Implement the setSelectedIndex to tabBarController with presentmodalview to the tabbarcontroller

Question

I am using ARC and Storyboard in my iphone application. I have simple input text view with button, On clicking button I am implementing presentModalvuewcontroller to a mainview with Tabbarcontroller. It is working fine. Now I need to conditionally implement setSelectedIndex:1 to tabbarcontroller Here is the code I am using:

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:[NSBundle mainBundle]];
ViewController *viewCon = (ViewController*)[storyboard instantiateViewControllerWithIdentifier:@"MainTab"];
   viewCon.tabBarController.selectedIndex= 1;   
[self presentModalViewController:viewCon animated:YES];

It is working properly.Just not changing the tab. It is displaying on default 0 tab.

Wolverine · Answer 1 · 2012-09-05T09:34:22.177

0

Try this

self.tabBarController.selectedIndex = 1; // Your desired index

The tabBarController property is built in to UIViewController.

Or

Do the following, before trying to change tab:

UITabBarController *tab=self.tabBarController;

And if you have used navigation controller then

UITabBarController *tab = self.navigationBar.tabBarController

And then

if (tab){
   NSLog(@"I have a tab bar");
   [self.tabBarController setSelectedIndex:1];
}
else{
   NSLog(@"I don't have");
}

edited Sep 05 '12 at 09:34

answered Sep 05 '12 at 09:28

Wolverine

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Thanks for your efforts but no impact on the functioning. – MobileGeek Sep 05 '12 at 09:48

Paresh Navadiya · Accepted Answer · 2012-09-05T10:09:42.590

In viewDidLoad of ViewController add this line:

self.tabBarController.selectedIndex = 1;

EDIT : call this selectedIndex only when coming from previous view's button click.

Make one property BOOL flag; in appDeleagete.

Now intially it will be self.flag = FALSE; in application didFinishLaunching.

So on previous view's button click.

-(void)btnBackClicked:(id)sender
{
   AppDelegate *objAppDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
   objAppDelegate.flag = TRUE;
   ........
}

Now In viewDidLoad of ViewController add these lines:

 AppDelegate *objAppDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
if(objAppDelegate.flag)//if from previous then only tabbar has selected index 1
{
  self.tabBarController.selectedIndex = 1;
}

Yes, That will work but I need to call this selectedIndex only when we are coming from previous view's button click. — MobileGeek, Sep 05 '12 at 10:02

Implement the setSelectedIndex to tabBarController with presentmodalview to the tabbarcontroller

2 Answers2