switch from one navigation Controller to another navigation View Controller

Question

I am developing an application in which I am using two navigation Controllers , and uilocalNotification

first NavigationViewController N1 has two ViewControllers v1 and v2 second NavigationViewController N2 has two ViewControllers v3 and v4

Also , when application is in background , and if UILocalNotification appears and if I click on it , the application should detect which navigation Controller and which viewController is displayed and then switch to another navigationController's viewcontroller .

Ex:- If v2 in N1 is displayed , then after notification is clicked , then switched to v3 in N2 is displayed

How to do this ??

Answer 1

just paste this bellow methods in your AppDelegate.m file and call particular method when you want to change UINavigationController...

For Example: if you are in v2 of N1 and notification changed then call bellow method like bellow...

AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
[appDelegate setRootViewControllerN2];

use this bellow methods for switch navigation controller with animations..

1. setRootViewControllerN1 : this is for set RootViewController with N1 navigationController.

-(void)setRootViewControllerN1{
    self.window.rootViewController = N1;
    
    [self.window makeKeyAndVisible];
    CATransition *animation = [CATransition animation];
    [animation setDelegate:self];   
    [animation setType:kCATransitionFade];
    [animation setDuration:0.5];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:
                                  kCAMediaTimingFunctionEaseInEaseOut]];
    [[self.window layer] addAnimation:animation forKey:kAnimationKey];
}

2. setRootViewControllerN2 : this is for set RootViewController with N2 navigationController.

-(void)setRootViewControllerN2{
    self.window.rootViewController = N2;
    
    [self.window makeKeyAndVisible];
    CATransition *animation = [CATransition animation];
    [animation setDelegate:self];   
    [animation setType:kCATransitionFade];
    [animation setDuration:0.5];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:
                                  kCAMediaTimingFunctionEaseInEaseOut]];
    [[self.window layer] addAnimation:animation forKey:kAnimationKey];
}