Unfortunately, the same can't be said for the navigation bar. The navigation bar still shows up in its old, opaque layout that takes up display space when using most apps.

Customize the Back Button of UINavigationItem in the Navigation Bar

In the past, Samsung gave you the ability to hide the navigation bar with a tiny button located on the left-hand side of the bar. With the S10, this option has been ditched in favor of gesture-based navigation controls. Compared to the traditional navigation bar, the new gestures free up screen real estate on your S10 for a more immersive experience. They're even better than the old method of auto-hiding the nav bar, as the gesture controls do away with the extra step of tapping a button after swiping up to reveal the navigation bar. One way of getting around this is to remove the bar button item from the nav bar and add it back again once you need it to be visible.

How to customize a view controller’s back button on a navigation bar: backBarButtonItem

I find this method tedious. The strong reference is required so that your bar button item is not deallocated once it has been removed from the navigation bar. My solution is to create an extension that will disable the bar button item and set its tint color to transparent, effectively hiding the bar button item.

Luckily, the isEnabled property exists on a bar button item, so we can prevent it from functioning when it is hidden. I will share the full code for the extension later in this post.

For now, you can take a look at the isHidden property in my extension. I set up an example view controller with a button that toggles the visibility of the bar button item.

You can see it in action. Replace "Your Title here" to " ". By doing this you will achieve the desired result.

Question Detail

You don't need to mess with the 'Title' anymore. Setting title of the back button to "" or nil won't work. You need to set the entire button empty without a title or image :.

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This should be done on the view controller that's on top of your view controller in navigation stack i. Another solution to this issue for situations where you have a great deal of view controllers is to use a UIAppearance proxy to effectively hide the back button title text like this:.

NativeScript Default Navigation

This solution will render the text as a tiny clear dot, similar to manually setting the back button title to " " , except that it affects all nav bar buttons. I don't suggest this as a general solution to the issue because it impacts all navigation bar buttons. It flips the paradigm so that you choose when to show the button titles, rather than when to hide the titles.

To choose when to show the titles, either manually restore the title text attributes as needed, or create a specialized subclass of UIBarButtonItem that does the same potentially with another UIAppearance proxy.

Enable Full Screen Gestures Mode (Hide Navigation Bar) on Galaxy S9, S10

If you have an app where most of the back button titles need to be hidden, and only a few or none of the nav buttons are system buttons with titles, this might be for you! Note: the font size change is needed even though the text color is clear in order to ensure that long titles do not cause the center nav bar title to shift over.

You can add this Objective-C category to make all "Back" buttons created by a navigation controller have no text. I just added it to my AppDelegate. PS - I don't know how to make this extension work with Swift, it was having weird errors. Edits welcome to add a Swift version.