open intercom from tabbar button click

Question

I have four tabs in my tabBarController, I want to add a fifth tab(chat tab) to open my intercom chat,

But what I want to achieve is when the user clicks the chat tabBar button then intercom should present on the currently opened tab and when it dismisses then it shows the same tab that it was opened on

I know it's possible but nothing coming in my head at the moment

Answer 1

That's not how tab bars are used, but if want to do it anyway, you can create a custom UITabBarController subclass and add a button programmatically as a subview to the tab bar.