How do I know if NDK is installed?

The Native Development Kit (NDK) is a set of tools that allows you to use C and C++ code with Android , and provides platform libraries you can use to manage native activities and access physical device components, such as sensors and touch input.

Summary: As of 2019, Google introduced a new NDK “side-by-side” feature which allows you to install multiple NDK versions under the Android SDK directory . All new NDK versions are downloaded to the side-by-side directory and it replaces the old “ndk-bundle” directory.

Android provides Native Development Kit (NDK) to support native development in C/C++, besides the Android Software Development Kit (Android SDK) which supports Java . [TODO] more. NDK is a complex and advanced topics.