Everything you can do with your Galaxy makes it easy to forget that it is still a phone. Incoming calls that take up the entire screen are a rude reminder of this fact. Fortunately, Samsung phones like the S10 and Note 10 are equipped with an integrated setting that is designed to keep these interruptions to a minimum.
Since the first version of One UI (Android 9), Samsung has had an option that allows you to receive incoming calls as a less intrusive pop-up card instead of taking over the entire screen. If this option is activated, you will no longer be cut off from your activities completely on incoming calls, making it much easier to go to the point where you left off after answering or rejecting the call. To start, simply open the phone app, press the three-dot button in the upper right corner and select "Settings" from the menu. Tap on "Call Viewer while using apps" and select "Popup" on the following page.
If you don't want the phone app to answer of a call is shown in full screen mode, you must activate the option "Keep calls in the pop-up window". If you are in One UI 2, you can continue to change the size of the business card if you find the standard size too large. To do this, simply select "Mini-Popup" in the "Call display when using apps" marked above.
Calls are now simply displayed as a heads-up notification with simple "Reply" and "Decline" buttons in the popup. It cuts a little on your screen, but is much less intrusive than the full-screen user interface!  How to prevent incoming calls from taking over the entire screen of your galaxy ” width=”532″ height=”532″ style=”max-width:532px;height:auto;”/>