Is NDK required for flutter?

It depends on the project type . The dialog you showed appears for an Android project but not for a Flutter one for me. With a Flutter app, the accepted answer was the one that helped me, too: installing the required NDK. I think this is the correct answer for the general use of the NDK.

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What is NDK used for?

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.

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