About the NativeActivity in Android 2.2/NDK-r5

With the NDK-r5, we can create 开发者_运维百科Native Activities with C++. My question is: Can it be run in Android 2.2?

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With the NDK-r5, we can create Native Activity in c++.

No. NativeActivity is a class in Android 2.3.

Can it be run in android 2.2 ?

No. NativeActivity is a class introduced in Android 2.3, and therefore does not exist in Android 2.2.