Question

How do I check to see how much space (in MB or GB) is left on the Android device? I am using Java and Android SDK 2.0.1.

Is there a system service that would expose something like this?

Answer 1

Try this code:

StatFs stat = new StatFs(Environment.getExternalStorageDirectory().getPath());

long bytesAvailable = (long)stat.getBlockSize() *(long)stat.getBlockCount();
long megAvailable   = bytesAvailable / 1048576;

System.out.println("Megs: " + megAvailable);

Explanation

getBlockCount() – return size of SD card;

getAvailableBlocks() – return the number of blocks that are still accessible to normal programs (thanks Joe)