Galaxy S8 floating camera button was introduced in Galaxy S8 and S8+ when it is not convenient for your fingers to tap the camera (shutter) button.
The floating camera button offers an alternative location on the screen for you to tap to take photos.
This Galaxy S8 camera guide shows you how to enable the floating camera button in Galaxy S8 and Galaxy S8+, and how to move it around in the screen to relocate the Galaxy S8 floating camera button.
What is the Galaxy S8 floating camera button? and why you may need it?
Occasionally, you may find it is not convenient to reach the camera shutter button to take a photo.
You may want a hardware button or relocate the camera button to other locations in the screen.
Galaxy S8 or S8+, like other smartphones, does not offer a hardware camera button. The hardware button below volume key is for Samsung Bixby, not for camera.
But Samsung  did offer a new floating camera button, which can be placed anywhere in Galaxy S8 camera app interface, to help you in this situation.
The Galaxy S8 floating camera button is just a duplicate of the camera button with identical size and color as the camera shutter button.
You may want to use Galaxy S8 floating camera button when your fingers have some difficulties to reach the camera button.
How to enable Galaxy S8 floating camera button?
By default, Galaxy S8 floating camera button is NOT enabled in any Galaxy S8 and Galaxy S8+.
You need to enable it if you want to use the floating camera button in Galaxy S8 or S8+.
To enable Galaxy S8 floating camera button, you can tap settings icon in Galaxy S8 camera preview screen as shown below to access Galaxy S8 … Read the rest