如何安全地将图像和视频存储在android中，以便其他应用程序不能使用？

Question

I have lots of images and video, so I cannot store in internal storage. I want to store it in external storage and I don't want to show this images and video to user. It can not be copy when it connected to USB.
I already tried to encrypt a video and images, but it takes to much time to decrypt a video and it is not played directly. This solution is told by so many people on stack overflow but it is not feasible for me.
I tried this solution, so please give me the another solution if it is possible.

Thanks in advance.

Answer 1

Include an empty file named .nomedia in your external files directory (note the dot prefix in the filename). This will prevent Android's media scanner from reading your media files and including them in apps like Gallery or Music. for example , you store your images and video in sdcard/yourappname/ then put .nomedia file in sdcard/yourappname/.nomedia And then other application can not read your media files