# Introducing Curtains

DevFeed: [Introducing Curtains](<https://devfeed.tech/articles/introducing-curtains-15703.md>)

Original publisher: [Read original article](<https://developer.squareup.com/blog/introducing-curtains>)

Author: P-Y Ricau

Published: 2021-03-05T20:00:00Z

Content type: release

Language: en

Sources: [Square Corner Blog RSS Feed](<https://devfeed.tech/sources/square-corner-blog-rss-feed.md>)

Topics: [Android](<https://devfeed.tech/topics/android.md>), [Library](<https://devfeed.tech/topics/library.md>), [Code](<https://devfeed.tech/topics/code.md>), [GitHub](<https://devfeed.tech/topics/github.md>)

Tags: [android](<https://devfeed.tech/tags/android.md>), [code](<https://devfeed.tech/tags/code.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [github](<https://devfeed.tech/tags/github.md>), [gradle](<https://devfeed.tech/tags/gradle.md>), [libraries](<https://devfeed.tech/tags/libraries.md>), [library](<https://devfeed.tech/tags/library.md>)

## AI overview

Square introduces Curtains, a small Android library that exposes app window information and provides APIs for observing window additions and removals, identifying the widgets that add root views, and interacting with window events.

## Source excerpt

Lift the curtain on Android Windows!