CODEWITHSUNDEEP
objective-cios
objlv
objlv

Reputation: 601

viewWillAppear is not called

I know that viewWillAppear is not called on pop/push views, but I really need that method. Here is what I try

I added UINavigationControllerDelegate and adopt 

- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
       [viewController viewWillAppear:animated];
}

-(void)viewWillAppear
{
    NSLog(@"Log");
}

but viewWillAppear is still not invoked

EDIT

AppDelegate.m

    self.navigationController = [[UINavigationController alloc]init];
    [self.window setRootViewController:self.navigationController];

    FirstView *fview = [FirstView]alloc]init];
    [self.viewController pushViewController:fview animated:YES];

FirstView.m
....
-(void)viewWillAppear
{
  NSLog(@"Logged");
}

....

Upvotes: 0

Views: 1635

Answers (2)

Stephen Darlington
Stephen Darlington

Reputation: 52565

The clue is here:

  [viewController viewWillAppear:animated];
} 

-(void)viewWillAppear

You call a method that takes one parameter. But your method doesn't have one. In Objective C terms that's a completely different method.

It should look like this:

-(void)viewWillAppear:(BOOL)animated {
  // blah
}

Upvotes: 6

NeverBe
NeverBe

Reputation: 5038

do you have navigation controller on window? paste your appdelegate.m

my working code:

self.navController = [[[CustomNavigationController alloc] initWithRootViewController:[[[HomeViewController alloc] init] autorelease]] autorelease];
[self.window addSubview:navController.view];
[self.window makeKeyAndVisible];

Upvotes: 0

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