UITabBarControllerDelegate compare value of viewController

Posted by T9 on Stack Overflow See other posts from Stack Overflow or by T9
Published on 2010-05-01T23:27:38Z Indexed on 2010/05/01 23:37 UTC
Read the original article Hit count: 382

I have a tabBar with 4 tabs on it, and I want to perform some action when a specific tab is selected, so I have uncommented the UITabBarControllerDelegate in the xxAppDelegate.m

I also wanted to see the value that was being sent logged in the console - in order to test my "if" statement. However this is where I got stumped.

// Optional UITabBarControllerDelegate method
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {

    NSLog(@"%@", viewController);
}

The console dutifully logged any selected controller that had been selected, but in this particular format:

<MyViewController: 0x3b12950>

Now, I wasn't expecting the square brackets or the colon or the Hex. So my question is how do I format my IF statement? This is what I thought would work but I get an error mentioned further down.

// Optional UITabBarControllerDelegate method
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {

    NSLog(@"%@", viewController);
    if (viewController == MyViewController)
    {
    //do something nice here …
    };
}

... The error is "Expected expression before 'MyViewController'"

Anyone know how I should be doing this?

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