What Is Popup Window in Android?

android.widget.PopupWindow. This class represents a popup window that can be used to display an arbitrary view. The popup window is a floating container that appears on top of the current activity.

How do I open a pop-up window on android?

Open the app you want to run in split-screen or pop-up view, then bring up the multitasking screen by tapping the recents key next to the home button. Tap the icon above the app’s card, then select the relevant option from the list that shows up.

What is pop-up window used for?

A window that suddenly appears (pops up) when you select an option with a mouse or press a special function key. Usually, the pop-up window contains a menu of commands and stays on the screen only until you select one of the commands. It then disappears.