How to get the exact size of cache directory : android

Question

NEED: I simply trying to get occupied cache size of each application which is installed in my phone.

MY APPROACH:

PackageManager packageManager = get         


        

Answer 1

Calling length on a directory doesn't always return the correct size. You could try to iterate over the file list and add up all file sizes to get the total directory size.

Like this:

long size = 0;
File[] files = cacheDirectory.listFiles();
for (File f:files) {
    size = size+f.length();
}