Swapping centreViewControllers with FloatingDrawers - ios

Question

I am using a third party pod KGFloatingDrawer which is great because it achieves this:
and is a reimplementation of JVFloatingDrawer. I used their sample code and the sliding drawers are working great!
BUT
When I first run my app I call one centreViewController with no drawers (Login). Then after login I call a new centreViewController with
appDelegate.centerViewController = appDelegate.navigationBarController()
which only works if I restart the app. Am I missing something?
The logout seems fine though
appDelegate.centerViewController = appDelegate.drawerSettingsViewController()
which puzzles me a bit because then I think I'm on the right track?
Am I supposed to only use normal segues and such first and then only call the drawerViewController?
Here is the other code when setting up the floating drawers :
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window = UIWindow(frame: UIScreen.mainScreen().bounds)
window?.rootViewController = drawerViewController
window?.makeKeyAndVisible()
return true
}
private var _drawerViewController: KGDrawerViewController?
var drawerViewController: KGDrawerViewController {
get {
if let viewController = _drawerViewController {
return viewController
}
return prepareDrawerViewController()
}
}
func prepareDrawerViewController() -> KGDrawerViewController {
let drawerViewController = KGDrawerViewController()
drawerViewController.centerViewController = drawerSettingsViewController()
drawerViewController.leftViewController = leftViewController()
drawerViewController.rightViewController = rightViewController()
drawerViewController.backgroundImage = UIImage(named: "sky3")
_drawerViewController = drawerViewController
return drawerViewController
}
private func drawerStoryboard() -> UIStoryboard {
let storyboard = UIStoryboard(name: StoryboardIDs.MainStoryBoardID , bundle: nil)
return storyboard
}
private func viewControllerForStoryboardId(storyboardId: String) -> UIViewController {
let viewController: UIViewController = drawerStoryboard().instantiateViewControllerWithIdentifier(storyboardId)
return viewController
}
func drawerSettingsViewController() -> UIViewController {
let viewController = viewControllerForStoryboardId(StoryboardIDs.LoginViewConSid)
return viewController
}
func sourcePageViewController() -> UIViewController {
let viewController = viewControllerForStoryboardId(StoryboardIDs.SettingsViewConID)
return viewController
}
func navigationBarController() -> UIViewController{
let viewController = viewControllerForStoryboardId(StoryboardIDs.NavConSid)
return viewController
}
private func leftViewController() -> UIViewController {
let viewController = viewControllerForStoryboardId(StoryboardIDs.LeftViewConID)
return viewController
}
private func rightViewController() -> UIViewController {
let viewController = viewControllerForStoryboardId(StoryboardIDs.RightViewConID)
return viewController
}
func toggleLeftDrawer(sender:AnyObject, animated:Bool) {
_drawerViewController?.toggleDrawer(.Left, animated: animated, complete: { (finished) -> Void in
// do nothing
})
}
func toggleRightDrawer(sender:AnyObject, animated:Bool) {
_drawerViewController?.toggleDrawer(.Right, animated: animated, complete: { (finished) -> Void in
// do nothing
})
}
func closeDrawer(sender:AnyObject, animated:Bool){
_drawerViewController?.closeDrawer(.Left, animated: animated, complete: { (finished) -> Void in
})
}
private var _centerViewController: UIViewController?
var centerViewController: UIViewController {
get {
if let viewController = _centerViewController {
return viewController
}
return drawerSettingsViewController()
}
set {
if let drawerViewController = _drawerViewController {
drawerViewController.closeDrawer(drawerViewController.currentlyOpenedSide, animated: true) { finished in }
if drawerViewController.centerViewController != newValue {
drawerViewController.centerViewController = newValue
}
}
_centerViewController = newValue
}
}
Any help/suggestions would be appreciated :D

Answer 1

Just gonna put this here in case anyone has similar problems.
After a week long struggle to find the problem. I eventually found that whenever I changed the centreViewController with
appDelegate.centerViewController = appDelegate.navigationBarController()
OR
appDelegate.centerViewController = appDelegate.logoutController()
that the methods
deinit {
print("deinit called")
notifCentre.removeObserver(self)
}
were not being called in any of the viewControllers.
So I added the line
self.dismissViewControllerAnimated(false, completion: {})
every time that I change the centreViewController.
Apparently Swift normally deinits automagically but when the using the third party methods there is some confusion with the memory handler and we need to step in. Good to know though as it could be a general swift issue as well.