Edit: When solving this problem, I found that it is much easier to start with your UITabBarController
, then perform login validation via your AppDelegate.m
's didFinishLaunchingWithOptions:
method.
Question: This code is in the the application didFinishLaunchingWithOptions:
method in my AppDelegate.m
if([result isEqualToString: @"log"])
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
UIViewController *ivc = [storyboard instantiateViewControllerWithIdentifier:@"TabBarControl"];
[(UINavigationController*)self.window.rootViewController pushViewController:ivc animated:NO];
NSLog(@"It's hitting log");
}
It simply takes an HTTP response for the user being logged in , and takes them to my TabBarController. The problem is that it's using a push rather than a modal transition to display the page. Since presentModalViewController method is deprecated or deleted in iOS7, how can I programmatically force a modal presentation?
The old presentViewController:animated:
method has been deprecated, we need to use presentViewController:animated:completion
instead. You now simply have to add a completion
parameter to the method - this should work:
if([result isEqualToString: @"log"])
{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
UIViewController *ivc = [storyboard instantiateViewControllerWithIdentifier:@"TabBarControl"];
[(UINavigationController*)self.window.rootViewController presentViewController:ivc animated:NO completion:nil];
NSLog(@"It's hitting log");
}
The docs are a good place to start - the docs for UIViewController presentViewController:animated
tell you exactly what you need to know:
presentModalViewController:animated:
Presents a modal view managed by the given view controller to the user. (Deprecated in iOS 6.0. Use
presentViewController:animated:completion:
instead.)- (void)presentModalViewController:(UIViewController *)modalViewController animated:(BOOL)animated
Since the accepted answer is in Objective-C, this is how you would do it in Swift. Unlike the accepted answer, though, this answer does not reference the navigation controller.
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let secondViewController = storyboard.instantiateViewController(withIdentifier: "secondViewController") as! SecondViewController
self.present(secondViewController, animated: true, completion: nil)
Change the storyboard name, view controller, and id as needed.
See also how to dismiss a view controller programmatically .
In swift 4.2 you can do it like this. For those who want this answer in swift updated version.
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let controller = storyboard.instantiateViewController(withIdentifier: "ExampleViewController")
self.present(controller, animated: true, completion: nil)
In Swift 3/4
let storyB = UIStoryboard(name: "Main", bundle: nil)
let secondViewController = storyB.instantiateViewController(withIdentifier: "SecondViewControllerID") as! SecondViewController
self.present(secondViewController, animated: true, completion: nil)
let storyB = UIStoryboard(name: "Main", bundle: nil)
let secondViewController =
storyB.instantiateViewController(withIdentifier:
"SecondViewControllerID") as! SecondViewController
self.present(secondViewController, animated: true, completion: nil)
In the secondViewController use this code to go back.
self.dismiss(animated: true, completion: nil)
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