In iOS 9, the view controller that is displayed in a tab is responsible for it's
. But a tab bar controller only loads the view controllers for each tab as they are needed. So initially, it only loads the view controller for tab 1 (if the app launches on the first tab). Therefore, unless you're setting the title for each tab item in a storyboard, only the first tab displays a title since it is the only view controller loaded at that time, while the rest only show their icon (which I am doing through a storyboard since the icon doesn't need to be localized).
How can you set the title for all tabs without doing it through a storyboard?