Question

I am properly pushing viewController B from A using navigationController. However, I would like to do it once uiwebview from viewController B finishes its load and not immediately. I tried firstly init B and push A when load ends but with no success, controller is not viewed. How can it be done? thank you.

from controllerA,

self.controllerB = [[BViewController alloc] initWithNibName:@"BViewController" bundle:nil anUser:self.idUser aLang:self.lang];

//[[self navigationController] pushViewController:controllerB animated:NO]; working if pushed directly here

[self.controllerB view];

then, controllerB is initialized, viewDidLoad triggered and when webviewDidFinishLoad, B must be pushed now or viewed at front.

- (void)webViewDidFinishLoad:(UIWebView*)theWebView
{
    AViewController *theInstance = [[AViewController alloc] init];
    [theInstance pushBcontroller]; }

on AViewController,

-(void)pushBcontroller{

    [[self navigationController] pushViewController:self.controllerB animated:NO];

}

not working…

Answer 1

The line AViewController *theInstance = [[AViewController alloc] init]; creates a new instance of a AViewController. Since it’s new it isn’t part of the view controller hierarchy and is therefore not connected to the navigation controller.

Give your BViewController a reference to the previous controller and use that instead of creating a different one. Or, perhaps better, send a notification when loading is done that the original AViewController uses to know when to change the display.