Retrieve the Java instance of the Android activity class.
Defined in SDL_system.h
void * SDL_AndroidGetActivity(void);(void *) Returns the jobject representing the instance of the Activity class of the Android application, or NULL on error.
The prototype of the function in SDL's code actually declares a void* return type, even if the implementation returns a jobject. The rationale being that the SDL headers can avoid including jni.h.
The jobject returned by the function is a local reference and must be released by the caller. See the PushLocalFrame() and PopLocalFrame() or DeleteLocalRef() functions of the Java native interface:
https://docs.oracle.com/javase/1.5.0/docs/guide/jni/spec/functions.html
This function is available since SDL 2.0.0.