Trigger image picker on UITabBarController button click - ios

Question

I have made a tabbar in storyboard with 4 bar items, I connected all of them to other view controllers by rightclick dragging and setting viewcontroller segue. Now for the second button i want to show an imagepicker instead of a viewcontroller. When i delete the second segue from storyboard in UITabBarController, my 4th bar item disappears.
This is my tabview controller
class BaseTabBarController: UITabBarController, UITabBarControllerDelegate {
let arrayOfImageNameForUnselectedState = ["home", "explore", "addIcon", "notification", "accountIcon"]
let arrayOfImageNameForSelectedState = ["homeFilled", "exploreFilled", "addIcon", "notificaitonFilled", "accountIcon"]
override func viewDidLoad() {
super.viewDidLoad()
self.delegate = self
if let count = self.tabBar.items?.count {
for i in 0..<count {
let imageNameForSelectedState = arrayOfImageNameForSelectedState[i]
let imageNameForUnselectedState = arrayOfImageNameForUnselectedState[i]
self.tabBar.items?[i].selectedImage = UIImage(named: imageNameForSelectedState)?.withRenderingMode(.alwaysOriginal)
self.tabBar.items?[i].image = UIImage(named: imageNameForUnselectedState)?.withRenderingMode(.alwaysOriginal)
}
}
}
override func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) {
if tabBar.items?.index(of: item) ?? 0 == 2 {
//Clicked add tab, cancel segue and show imagepicker
} else {
selectedTabindex = tabBar.items?.index(of: item) ?? 0
}
}
}
How do I show image picker on 2nd bar button click

Answer 1

Do not Delete Second segue from storyboard put dummy view controller to show tab button inside tabbar. Implement UITabBarController controller's delegate method in subclass of UITabBarController and return false in shouldSelect method for second viewcontroller and present ImagePicker View for there.
Code:
class BaseTabBarController : UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
self.delegate = self
}
override var prefersStatusBarHidden: Bool {
return false
}
}
extension BaseTabBarController : UITabBarControllerDelegate {
func tabBarController(_ tabBarController: UITabBarController, shouldSelect viewController: UIViewController) -> Bool {
if self.viewControllers?.index(of:viewController) == 1 {
// TO Do code for Image Picker and Present it
return false
} else {
return true
}
}
func tabBarController(_ tabBarController: UITabBarController, didSelect viewController: UIViewController) {
}
}