Space Behind TabBar Unrecognizable - ios

Question

In my app, there exist a scenario where I hide the bottom TabBar by [self.tabBarController.tabBar setHidden:YES] and later add a UIView containing UIButtons in the vacated area at the bottom of the view.
The area where the TabBar was will not respond to touch events so I can't select any of the buttons in the UIView.
I've done research on here and this question has been around for awhile but the old answers don't seem to work anymore. [self setNeeds Display] and self.tabBarController.tabBar.translucent = YES, do not work anymore as you still can't press the UIButtons. On a side note, I created my UIView with UIButtons in storyboards and put a bottom constraint to the superview. Please provide an answer known to work for iOS 9 and 10.

Answer 1

I created a project according to question. It's work fine. Please try this.
- (void)viewDidLoad {
[super viewDidLoad];
[self.tabBarController.tabBar setHidden:YES];
UIView *view = [[UIView alloc]initWithFrame:self.tabBarController.tabBar.frame];
[self.view addSubview:view];
view.backgroundColor = [UIColor redColor];
UIButton *btn = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 100,view.frame.size.height)];
[view addSubview:btn];
[btn setTitle:#"clicked me " forState:UIControlStateNormal];
[btn addTarget:self action:#selector(btnclicked:) forControlEvents:UIControlEventTouchDown];
}
-(void)btnclicked:(UIButton *)sender{ NSLog(#"button clicked event."); }

Answer 2

I created a test project to check the functionality that you want.
class ViewController: UIViewController {
#IBOutlet weak var testButton: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
testButton.addTarget(self, action: #selector(tapped), for: .touchUpInside)
self.tabBarController?.tabBar.isHidden = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tapped(_ sender:UIButton){
print("Tapped")
}
}
As per your requirement, i created a uiview containing a UIButton as a subview and created a outlet for the button.
As, i tab on on the button the action - tapped is triggered.