Java 代码：检查文件是否存在于 Assets 文件夹中

private static Boolean getReleaseSignature2exist(Context context){\n InputStream inputStream = null;\n try {\n AssetManager assetManager = context.getAssets();\n inputStream = assetManager.open(FILE_NAME_II);\n inputStream.close();\n return true;\n } catch (IOException e) {\n return false;\n }\n}