How to navigate from app delegate class in window based iPhone application. How to write pushViewcontroller method in app delegate class

  • In my window base application I need to navigate to informationview from my appdelegate when i click on alert view button.
  • alert view works with NSlog.
  • But i need to push to the other view for this purpose i used

    [self.navigationController pushViewController:info animated:YES];

but it doesn't pushes. just nslog only prints

- (void)applicationDidBecomeActive:(UIApplication *)application { //To count the number of launches NSInteger i = [[NSUserDefaults standardUserDefaults] integerForKey:@"numOfCalls"]; [[NSUserDefaults standardUserDefaults] setInteger:i+1 forKey:@"numOfCalls"]; NSLog(@"the number of active calls are %d",i%3); if(i%3==0 && i!=0) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"you might prefer MedChart+" message:@"Get it now for more options" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Ok",nil]; [alert show]; [alert release]; } } - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex == 0) { NSLog(@"canceled"); } else if (buttonIndex == 1) { NSLog(@"Pushed to the information view "); InformationViewCotroller *info = [[InformationViewCotroller alloc]initWithNibName:@"InformationViewCotroller" bundle:nil]; [self.navigationController pushViewController:info animated:YES]; } }

(dont consider 'i' values it is part of my logic). Thanks in advance

-------------Problems Reply------------

Before Navigate to any viewController , set the RootController for your navigationController of appDelegate. Add navigationController.View as subview of window.Then your root controller will be the first ViewController.from there you can push to any viewController.

Category:iphone Views:1 Time:2012-02-22

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