How to download the photos?

【Introduction】

In MSDK v5, the pullOriginalMediaFileFromCamera will pull the original data from the photos. If you want to download a complete photo into a specified location of your Android device, you need to set the input parameter offset as 0 and write the media data from the MediaFileDownloadListener callback to the byteStreamBuffer.

【Demo code】

fun downloadFile(){
    //Define the path of the saved photo, create it if it does not exist. Be careful that the authorization of the shared storage is changed from Android 11.
    val dirs: File = File(DiskUtil.getExternalCacheDirPath(ContextUtil.getContext(), mediaFileDir))
    if (!dirs.exists()) {
        dirs.mkdirs()
    }

 //Define the name of the saved photo, override it if it does exist. Be careful that the authorization of the shared storage is changed from Android 11
    val filepath = DiskUtil.getExternalCacheDirPath(ContextUtil.getContext(), mediaFileDir + "/" + mediaFile?.fileName)
    val file: File = File(filepath)
    if (file.exists()) {
        file.delete()
    }

    //Open up the byte output stream.
    val outputStream = FileOutputStream(file)
    val bos = BufferedOutputStream(outputStream)
    var beginTime = System.currentTimeMillis()
    mediaFile?.pullOriginalMediaFileFromCamera(0 , object :MediaFileDownloadListener {
        override fun onStart() {
            showProgress()
        }

        override fun onProgress(total: Long, current: Long) {
            updateProgress(current , total)
        }

        //Write the data when the callback has returned each time.
        override fun onRealtimeDataUpdate(data: ByteArray, position: Long) {
            try {
                bos.write(data, 0, data.size)
                bos.flush()
            } catch (e: IOException) {
                LogUtils.e("MediaFile" , "write error" + e.message)
            }
        }

        //The downlaod process is completed, close the byte output stream.
        override fun onFinish() {
            var spendTime = (System.currentTimeMillis() - beginTime)
            var speedBytePerMill : Float? = mediaFile?.fileSize?.div(spendTime.toFloat())
            var divs = 1000.div(1024 * 1024.toFloat());
            var speedKbPerSecond : Float?= speedBytePerMill?.times(divs)

            ToastUtils.showToast(getString(R.string.msg_download_compelete_tips) + "${speedKbPerSecond }Mbps"
                    + getString(R.string.msg_download_save_tips) + "${filepath}"  )
            hideProgress()
            try {
                outputStream.close()
                bos.close()
            } catch (error: IOException) {
                LogUtils.e("MediaFile" , "close error$error" )
            }
        }

        override fun onFailure(error: IDJIError?) {
            LogUtils.e("MediaFile" , "download error$error" )
        }

    })
}