Hide My Files from Another Application

In my application i m downloading some (mp4 or mp3 ) files from the internet. Now i want to 开发者_如何转开发hide those files from any other application like(Astro any Music player) so how can i do this ?

Please help me....

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Create a file called ".nomedia" in the folder where you are storing your downloaded files. Well behaved apps should now ignore your content.

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if you save the files in your application space, it will automatically be hidden from all other applications.