导航栏后退按钮方法

Question

I want to navigate to the particular page in my application and i also dont want to create any custom back button for that.If I can override the method of the navigation bar back button so I can call the poptorootviewcontroller.so i can go to specific page. Anyone knows what is the method that is called by the navigation bar button and if we can use it?

Answer 1

You can try this.. Write your logic in this native method.

-(void) viewWillDisappear:(BOOL)animated {

    [super viewWillDisappear:YES];
    // Your Code
}

Answer 2

You will have to provide the name and the implementation for the button method As there is no standard method ..

self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:self action:@selector(backButtonPressed)] autorelease];

implementation ..

-(void) backButtonPressed {
 NSLog(@"Back button presses");

}

Answer 3

Try to use the below code:

NSArray * viewController = self.navigationController.viewControllers;
if([viewController count] > 3)
{
    UIViewController * vc = [viewController objectAtIndex:0];
    [self.navigationController popToViewController:vc animated:YES];
}