activity->callbacks->onNativeWindowCreated = &native_window_created;
activity->callbacks->onNativeWindowResized = &native_window_resized;
activity->callbacks->onNativeWindowDestroyed = &native_window_destroyed;
activity->callbacks->onInputQueueCreated = &input_queue_created;
activity->callbacks->onInputQueueDestroyed = &input_queue_destroyed;
activity->instance = this;
activity->callbacks->onNativeWindowCreated = &native_window_created;
activity->callbacks->onNativeWindowResized = &native_window_resized;
activity->callbacks->onNativeWindowDestroyed = &native_window_destroyed;
activity->callbacks->onInputQueueCreated = &input_queue_created;
activity->callbacks->onInputQueueDestroyed = &input_queue_destroyed;
activity->instance = this;