在unity中调用引用了资源的java代码时，必须用动态获取资源。

下面是一段测试代码

Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.story_post_test);
KakaoLog.i("R.drawable.story_post_test="+R.drawable.story_post_test);
KakaoLog.i("bitmap="+bitmap);
		
int resID = getResources().getIdentifier("story_post_test", "drawable", getCurrentActivity().getPackageName());
Drawable drawable = getResources().getDrawable(resID);
KakaoLog.i("drawable="+drawable);
Bitmap bitmap1 = BitmapFactory.decodeResource(getResources(), resID);
KakaoLog.i("R.drawable.story_post_test="+resID);
KakaoLog.i("bitmap1="+bitmap1);

运行结果