Cocoa Touch: How can I update the table view everytime I tap on a tab of tabbar?

Question

I'm using iOS 8 and Objective c. If I do a change in the values in one view, I can't see the reflection on my other tabviews. But if I re-run the app, I can see the reflection on the other tabs. Sometimes it works, sometimes it doesn't. How can I make sure that when I tap on a tabview, it will be reload according to the database?

Answer 1

I solved it! Here is my code: "TheMaster" is the main tabview. Here selectedIndex can be 0,1,2.... according to the placement of the tab. The leftmost tab has the index 0, and after that 1,2, and so on.

   UITabBarController *controller = [self.storyboard   instantiateViewControllerWithIdentifier:@"TheMaster"];
    controller.selectedIndex=0;
            [self presentViewController:controller animated:YES completion:nil ];