I have a custom action sheet viewController. Which is presented modally on the current top view controller. Like this:
//MARK: Static Func
static func initViewController() -> CustomActionSheetViewController {
let customActionSheetViewController = CustomActionSheetViewController(nibName: "CustomActionSheetViewController", bundle: nil)
return customActionSheetViewController
}
func presentViewController<T: UIViewController>(viewController: T) {
DispatchQueue.main.async {
if let topViewController = UIApplication.getTopViewController() {
viewController.modalTransitionStyle = .crossDissolve
viewController.modalPresentationStyle = .overCurrentContext
topViewController.present(viewController, animated: true, completion: nil)
}
}
}
// MARK: UIApplication extensions
extension UIApplication {
class func getTopViewController(base: UIViewController? = UIApplication.shared.keyWindow?.rootViewController) -> UIViewController? {
if let nav = base as? UINavigationController {
return getTopViewController(base: nav.visibleViewController)
} else if let tab = base as? UITabBarController, let selected = tab.selectedViewController {
return getTopViewController(base: selected)
} else if let presented = base?.presentedViewController {
return getTopViewController(base: presented)
}
return base
}
}
And I am dismissing it like this:
@objc func dismissViewController() {
DispatchQueue.main.async {
if let topViewController = UIApplication.getTopViewController() {
topViewController.dismiss(animated: true, completion: nil)
}
NotificationCenter.default.removeObserver(self)
}
}
It's working perfectly fine. I have added the notification observer in my customTabbarController, to dismiss the action sheet if user tap on some another tabbar button like this:
func tabBarController(_ tabBarController: UITabBarController, didSelect viewController: UIViewController) {
// print("Selected view controller", viewController)
// print("index", tabBarController.selectedIndex )
let tabbarNotiKey = Notification.Name(rawValue: "TabbarNotiKey")
NotificationCenter.default.post(name: tabbarNotiKey, object: nil, userInfo: nil)
}
The action sheet is right now presenting on Home tab > Profile (by push) > Action sheet (by modal). So if I tap on Home tab again it will dismiss the action sheet viewController and come back to Home perfectly. But if I tap on some other tabbar button rather than home and come back home, it shows a black screen. What I am missing here? Any suggestions would be highly appreciable.
