how to full screen mode in samsung note 8?
cocos2d supports any screen resolution.
What problem do you have?
if you have black borders have a look at resolution policy and design resolution
If you have problem with latest trend of aspect-ratio of above 1.77 i.e. 2.0 or 2.05 etc then you must target sdk 27 while compiling.
For notch screens, I’ve had to create a new theme in values-v28 folder. Found the info in this tutorial: https://proandroiddev.com/making-notch-friendly-apps-for-android-75776272be5c