显示具有选定TableView项和选项卡栏控制器的View Controller

Question

I'm trying to present a SharkProfileTableViewController from my Main.storyboard file with a TabBarViewController from a button action in a modal view in Upload.storyboard that has no tab bar.

The ViewController I'm trying to present is a selected item from a SharksTableViewController tableview based on the data from the modal view.

How do I show the SharkProfileViewController along with the TabBarViewController ?

@IBAction func viewProfileButtonPressed(_ sender: UIButton) {
    let stb = UIStoryboard(name: "Main", bundle: nil)
    let tabBar = stb.instantiateViewController(withIdentifier: "tabBar") as! TabBarViewController
    let sharkTabBar = stb.instantiateViewController(withIdentifier: "sharkTableView") as! SharksTableViewController
    let sharkProfile = stb.instantiateViewController(withIdentifier: "sharkProfile") as! SharkProfileTableViewController

    sharkProfile.selectedShark = shark as JSONObject

    tabBar.selectedIndex = 3

    self.present(tabBar, animated: true) {

    }

}

TabBarController - the 'Shark' tab is the tab that should show

SharksTableViewController - when selecting an item in this tableview it presents the ...

SharkProfileTableViewController - this is the view I'm trying to present (with the tab bar showing)

Answer 1

If you want to pass any data to SharkProfileTableViewController that you have added in UITabbarController then you can access it using the viewControllers property of UITabbarController . viewControllers property will return array of UIViewController so you need to access it using subscript with your controller index in Tabbar.

@IBAction func viewProfileButtonPressed(_ sender: UIButton) {
    let stb = UIStoryboard(name: "Main", bundle: nil)
    let tabBar = stb.instantiateViewController(withIdentifier: "tabBar") as! TabBarViewController
    //If SharkProfileTableViewController at 4 position in tabbar then access it from array like this
    let nav = tabBar.viewcontrollers?[3] as! UINavigationController 
    let sharkProfile = stb.instantiateViewController(withIdentifier: "sharkProfile") as! SharkProfileTableViewController
    sharkProfile.selectedShark = shark as JSONObject        
    tabBar.selectedIndex = 3        
    self.present(tabBar, animated: true) {
        nav.pushViewController(sharkProfile, animated: false)
    }
}

Now you need to simply change index in viewcontrollers?[3] to access other controller from array.