How to change TabBarController index and call method

I have a UIButton in one of my tabBar view's controller and I want that button to change the tabBar selectedIndex and call that selectedIndex's controller method.

Example: My button is selectedIndex 3. When the user clicks the button, I want to change the selectedIndex to 0 and call a method in that selectedIndex's controller.

Is this possible? If so, how?

Th开发者_如何学JAVAanks in advance!

This is how you can switch to a different tab:

- (IBAction)buttonPressed:(id)sender 
{
    self.tabBarController.selectedIndex = 0;

    /* Running method declared in FirstViewController */

    FirstViewController *firstView = [[FirstViewController alloc] init];

    // call methods here
    [firstView methodName];    

    [firstView release];
}

Ya you can do it easily....just use this in your button event method

[self.tabBarController setSelectedIndex:3];