add Egl Callback
Adds callback for underlying OpenGL calls of swap buffers.
Parameters
callback
GlSurfaceListener.EglCallback callback to handle eglSwapBuffers event.
Throws
IllegalStateException when MapView is not valid
Adds callback for underlying OpenGL calls of swap buffers.
GlSurfaceListener.EglCallback callback to handle eglSwapBuffers event.
IllegalStateException when MapView is not valid