While Android does allow apps to use picture-in-picture mode (PiP), it's just a handful of apps actually supporting the feature. Most of the apps that are are video apps. The thing is, PiP is useful for more than just watching videos, and the Galaxy Note 9 has been released.
Samsung devices, like the Galaxy Note 9, have a built-in feature known as floating windows. This feature lets you create windows of your favorite app which can be overlaid on top of other apps. You can interact with these apps normally as the app in full-screen mode. Now, Samsung has made this feature even better.
Step 1: Download Good Lock 201
First, you'll need an app from the Galaxy Note 9's second app store, galaxy apps. Open Galaxy Apps in your app drawer and search for "Good Lock 2018," then tap the "Install" button.
Good Lock 2018 has six different Extensions which offer various aspects of the Galaxy Note 9. The add-on we need is "MultiStar," which you can find near the bottom of the page. Choose "MultiStar," then "Install" to download and install the Galaxy Note 9.
Once installed, head back to Good Lock 2018 and select MultiStar again (it should have a green check box next to it now). Once inside MultiStar, you will find the toggle "Ghost Mode."
Now, open an app you wish to turn into a floating window. Select the recent apps button to open up. Long press the title of the app in the title bar and drag it to the designated blue square in the center of the screen.
If you wish to open a second window, reenter Overview mode and drag a new app to the blue center.
You can resize the window by pressing it in the opposite direction. You can get rid of it using the "X" located in the upper-right corner of the window. You can reduce the window to a floating icon using the icon with two arrows pointing to each other. This feature will let you minimize the window when not in use.
Finally, you can open the full screen view of the icon. While I'm sure there is a limit to the amount, I was not able to find exact number. I can say I've had six apps floating in windows with no problems.
You may have noticed I did not talk about the leftmost icon. This is a new icon created when we enabled "Ghost Mode." By selecting this icon, you can reduce the transparency of the window from 0% to 100% (moving in 20% intervals). How to Create Transparent Floating Windows on Your Galaxy Note 9 ” width=”480″ height=”480″ style=”max-width:532px;height:auto;”/>