About DownloadManager download saved path problem

Has now been downloaded to the SD card, and I was wondering if the phone is no SD card how to do, then get down to the phone's memory card.

However, this path to how to write, or is there any way to achieve. Please advise!

Attached code:

 
downloadManager = (DownloadManager) getSystemService (DOWNLOAD_SERVICE); 

Uri uri = Uri.parse ("http://XXX.XX.XX/SinaNewsRelease.apk"); 

Request request = new Request (uri); 

/ / Set to allow the use of network types, here is the mobile network and wifi can 
request.setAllowedNetworkTypes (DownloadManager.Request.NETWORK_MOBILE | DownloadManager.Request.NETWORK_WIFI); 

/ / Notice 
 to interfacerequest.setShowRunningNotification (true); 

/ / Set the title 
request.setTitle ("Sina News"); 

/ / Display the download interface 
request.setVisibleInDownloadsUi (true); 

/ / Set the download path / mnt / sosspad / download 
request.setDestinationInExternalPublicDir ("/ download /", "SinaNewsRelease.apk"); 

When using 
 / / Record ID Installationid = downloadManager.enqueue (request); 

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Look inbox, plus I Q Q
Reply:
Brothers, there is no SD card you finally how to achieve it? QQ: 393282035 Thanks
Reply:
The landlord to solve this problem? ? Advice. . .
Reply:
How I added the phrase after

 request.setAllowedNetworkTypes (DownloadManager.Request.NETWORK_MOBILE | DownloadManager.Request.NETWORK_WIFI); 

On the Meizu M9, 4.0.3 can not download it