Question

okay i have a tabbed view, so two view controllers. in one view controller i have a segmented control and to know which segment was selected i have an action connected to it. like this:

-(IBAction)selectAngle:(id)sender{
    clickedSegment = [myAngleType selectedSegmentIndex];
}

here clickedSegment is an integer which i have exposed as a property in my header. now i want to use the value of this clickedSegment in my other view controller but whenever i create an instance of that VC(segmented controller one) and try to use clickedSegment, i always get 0 as the value no matter if i selected other segment 1 or 2. its always zero. where am i going wrong?

Answer 1

How is your second view controller going to know about any property in the first view controller? This is impossible, unless you explicitly get a reference to it.

// in second view controller
FirstViewController *firstVC = 
   (FirstViewController*)[self.tabBarController.viewControllers objectAtIndex:0];

NSLog(@"clicked segment: %d", firstVC.clickedSegment); // assuming int