How read and display available space in android both sd card and internal memory?

问题

how to programmatically read and display the size of sd-card and internal memory.

Internal Memory

1. total space.
2. used space.
3. free space.

External Memory

1. total space.
2. used space.
3. free space.

any related suggestions are apreciatted

回答1:

Try this code:

public static long remainingLocalStorage()
{
StatFs stat = new StatFs(Environment.getDataDirectory().getPath());
stat.restat(Environment.getDataDirectory().getPath());
long bytesAvailable = (long)stat.getBlockSize() *(long)stat.getAvailableBlocks();
return bytesAvailable;
}

回答2:

Check this Memory Status class it has both methods to get Internal and external available storage

回答3:

StatFs class 

you can use here, provide the path for your internal and external directory and calculate the total, free and avialable space.

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

See the documentation for more details.

来源：https://stackoverflow.com/questions/15521050/how-read-and-display-available-space-in-android-both-sd-card-and-internal-memory