Don't want SplitView Controller as rootViewController - ios

Question

Apple documentation says that any application using a split view controller should make it as a root view controller. But i am struck at a state where, my login screen should redirect me to a split view controller. Is there a way to achieve this?
I am Using storyboards and new to programming. Kindly help.

Answer 1

One quite common way to solve this issue to change the rootViewController of your applications main UIWindow (which again is a property of your AppDelegate) after a successful login.
So, the initial view controller of your app needs to be your LoginViewController that handles the login. After a successful login, you can do something like this:
- (void)switchToMainInterface
{
// Change the root view controller of the application window to the main storyboard
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"Main" bundle: nil];
UISplitViewController *mainSplitViewController = [mainStoryboard instantiateViewControllerWithIdentifier:#"MainSplitViewController"];
UIWindow *mainApplicationWindow = [[[UIApplication sharedApplication] delegate] window];
mainApplicationWindow.rootViewController = mainSplitViewController;
}
Note that this code is just dummy code to make my suggestion a bit more tangible, it makes the following assumptions:
you have a Storyboard called Main in your application bundle
within this Main Storyboard you have a UISplitViewController with the Storyboard ID MainSplitViewController so that you can instantiate it programmatically
you need to import AppDelegate.h to get access to the root UIWindow

Answer 2

Link your LoginViewController to a UIViewcontroller. In this controller drag an UIContainerView, and embed your UISplitViewController in it.

Answer 3

I created a custom segue class and implemented the following code. I am not sure what it does to my application. It seems a bit high level code to me as I am an amature but it works fine. Hope you find it useful.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
//Override point for customization after application launch.
// UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
// UINavigationController *navigationController = [splitViewController.viewControllers lastObject];
// splitViewController.delegate = (id)navigationController.topViewController;
return YES;
}
Commented the above code, I believe this is to pause UISplitViewController from loading into UIWindow.
And my custom segue --> segue.m is as follows..
#import "Seague.h"
#implementation Seague
-(void)perform
{
UIViewController *sourceViewController = (UIViewController *)self.sourceViewController;
UIViewController *destinationViewController = (UIViewController *)self.destinationViewController;
UISplitViewController *splitViewController = (UISplitViewController *)destinationViewController;
UINavigationController *navigationController = [splitViewController.viewControllers lastObject];
splitViewController.delegate = (id)navigationController.topViewController;
UIWindow *window = [UIApplication sharedApplication].keyWindow;
window.rootViewController = destinationViewController;
window.rootViewController = sourceViewController;
[UIView transitionWithView:sourceViewController.view.window duration:0.5 options:UIViewAnimationOptionTransitionNone animations:^{
window.rootViewController = destinationViewController;
} completion:^(BOOL finished){}];
}
#end
This segue is triggered when my login button is pressed and the login details are valid.
My rootViewController is the viewController that has my login button and not UISplitViewController.
Reference: This is not a code I wrote. Found it somewhere on web after searching for 2 days. Will update the source link for reference soon.
Thankyou all for your responses :)