Android get all available storage devices

问题

Is there any function/method which allow to detect all kind of different storage to your phone with their names. I mean to detect all internal/external storage if there is more than one available on your device. And how to detect if there is available SD Card or not?

Thanks in advance!

回答1:

I don't know about other types of storage device, I only know Internal Storage and External Storage device for android.

Now for check available external storage something like,

public static boolean isSdPresent() {

return android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED);

}

return type boolean(true->available,false->NA).

And for Internal storage, (Internal storage is always remain (present) so no need to check it) just get like,

File path = Environment.getDataDirectory();

Now, in both case to check available free memory and usage memory,

StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSize();
long availableBlocks = stat.getAvailableBlocks();
return Formatter.formatFileSize(this, availableBlocks * blockSize);

回答2:

Try this one..

public static boolean isSdCardPresent() {

        return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);

        }

来源：https://stackoverflow.com/questions/8133601/android-get-all-available-storage-devices