Android平台Retrofit下载PDF文件损坏问题求助

在Android设备上下载的PDF文件无法打开，提示文件已损坏，但该文件在PC端可正常打开。

请求代码 #

//Request;
@GET("url")
suspend fun getDocumentDownload(@Path("File") file: String?): Response<ResponseBody>

文件写入代码 #

//writeResponseBodyToDisk
var inputStream: InputStream? = null
var outputStream: OutputStream? = null
val byteArray = ByteArray(4096)
val fileSize = body.contentLength()
var fileSizeDownloaded: Long = 0
inputStream = body.byteStream()
outputStream = FileOutputStream(file)
while (true) {
    val read = inputStream.read(byteArray)
    if (read == -1) {
        break
    }
    outputStream.write(byteArray, 0, read)
    fileSizeDownloaded += read.toLong()
}
outputStream.flush()

响应对比截图 #

• 损坏响应截图：
• 成功响应截图：

内容的提问来源于stack exchange，提问作者Mustafa Maden