如何安全地将数据存储在android设备中？

Question

I have the problem to store the downloaded data in my android device Now I store the data on my sdcard, but this is not much prevent from the user. I need to store the data securely from the user. How can I do that?

Answer 1

there is no way you can prevent the user from accessing your data. The max you can do is :

1. Make the folders you create as hidden ( prefix the folder names with a . )
2. remove the extension of the files you create, if possible. In most cases you can still access them & your files dont show up in other apps (like music players, Image viewers).

Answer 2

For storing senstive data or some downloaded dat in the application , just use internal Storage. ie "data/data/{App package name}/{direcdtory name}". if you store data inside the internal storage, only your application can access the data not the user nor other application.