问题
I have implemented offline caching in my app and for that I am storing images in external storage.I am automatically deleting the cached data based on the available space in external storage and once the limit reaches the specified value.I want that cached data to be remain hidden from user so that user can't access it.Is it possible to hide the cached data from the user?Or is there any way i can make cached data folder visiblity invisible in external storage?
来源：https://stackoverflow.com/questions/28893810/hiding-cached-data-from-user-so-that-user-cant-access-it