Have you ever wanted to create your own Android app? Whether you're a beginner or someone looking to enhance your mobile ...

This is Android Studio telling you that you have used a new construct (View) without importing it in the import section, at the top of the Java code. This is easy to fix.

Google has released the stable build of Android Studio 4.0, its newest official integrated development environment (IDE) for building Android apps on Windows, Mac, Linux and Chrome OS.