Question

Let’s say I have a tabbar application that nests a lot of uitableviewcontrollers and uiviewcontrollers. What is the line of code that i would use to get a handle on a particular controller?

For example, let’s say I want to grab the uitableviewcontroller which is currently the 3rd tab of the tab bar controller. I am in the MyObject.h/m file which has the following code:

MyObject.h

#import <Foundation/Foundation.h>
#import "MyAppDelegate.h"

@interface MyObject : NSObject

-(void) myfunction;

@end

MyObject.m

#import "MyObject.h"

@implementation MyObject



-(void) myfunction  {

    UITableViewController * mytvc = /*Some line of code*/;

}
@end

What do i replace /*Some line of code*/ with such that mytvc is a variable that points to the uitableviewcontroller i’m interested in?

I am using XCode 4.2. I have a storyboard that illustrates each of my uiviewcontrollers. The Tabbar view controller was the first thing xcode made for me. So I think that means it’s the top of the app?

Answer 1

If it is your root view controller, and you have access to your app delegate, you should be able to access your controller like this:

appDelegate.window.rootViewController