(This is the legacy documentation for SDL2, the previous stable version; SDL3 is the current stable version.)

SDL_AndroidGetJNIEnv

Get the Android Java Native Interface Environment of the current thread.

Header File

Syntax

void * SDL_AndroidGetJNIEnv(void);

Return Value

(void *) Returns a pointer to Java native interface object (JNIEnv) to which the current thread is attached, or 0 on error.

Remarks

This is the JNIEnv one needs to access the Java virtual machine from native code, and is needed for many Android APIs to be usable from C.

The prototype of the function in SDL's code actually declare a void* return type, even if the implementation returns a pointer to a JNIEnv. The rationale being that the SDL headers can avoid including jni.h.

Version

This function is available since SDL 2.0.0.