Question

I have a main tabController that has two tabs, first one is selected as default. When tab2 is pressed, file is loaded on a webview but you must wait few seconds. How could I load content before tab2 will be selected? I tried to call carrega (containing working ViewDidLoad code) function once tabController was set and is executed properly, however when tab2 is selected, content is blank… Thank you.

from delegate,

    viewControllers = [NSArray arrayWithObjects:firstVC, secondVC, nil];
    [tabBarController setViewControllers:viewControllers animated:NO];

    [self.window makeKeyAndVisible];

    [firstVC carrega];
    [secondVC carrega];

//now few seconds later, tab2 will be pressed and should have content already loaded!

second viewController,

-(void)carrega{
//here my loading content code that if is on ViewDidLoad works great but with loading timeout
}

Answer 1

Try

viewControllers = [NSArray arrayWithObjects:firstVC, secondVC, nil];
[tabBarController setViewControllers:viewControllers animated:NO];

[self.window makeKeyAndVisible];

[secondVC view];

To force the second view to load.