Android : Getting The Contents Of A Specific Directory On The SDCard
Jul 8, 2010How would I go about getting an array of all the files in a specific directory on the sdcard, i.e. /ringtones/?

How would I go about getting an array of all the files in a specific directory on the sdcard, i.e. /ringtones/?
I connected my android phone to my PC via USB cable and created a folder and file at "F:/Android/mymusic/so_happy.mp3". What I am trying to with my program on the phone is to list the contents of "F:/Android/mymusic/" (however that is represented on the device, I think it is something like /mnt/sdcard/Android/mymusic/ but that is not working). So far I am not getting anywhere. A listing of my code is posted below. Basically what it does is checks the directory for file contents, stores it in an arraylist of strings, and then is added to a spinner. So far, files is always null and "song0" and "song1" just get added to the spinner. What I want is to see "so_happy.mp3" there instead.
Code:
public class AndroidSimpleMusicPlayerActivity extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
[Code] ......
Security is top priority for me, i realise there are apps out there that can remote wipe lock etc, but if the thief is quick enough to take out the sdcard and put it in another phone the sdcards contents can still be accessed can't it?
So i would like to know if there is anyway to encrypt or protect the sdcard and the contents within it?
I have been trying to create a directory in sdcard programatically but it always showing me directory not created.
my code is this.
CODE:....................
When I saved a file or open a dir under sdcard dir, it always complains:"Parent directory of file is not writable: /sdcard/myfile, java.io.IOException: Parent directory of file is not writable" Any idea what's wrong?
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I have this code:
CODE:...............
On the marked line of file.createNewFile();
I get java.io.IOException: Parent directory of file is not writable: /sdcard/log.db
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/sdcard/MyDirectory/Dir1/Dir2 (exists: false, canWrite: false, isDirectory: false, isFile: false);
/sdcard/MyDirectory/Dir1 (exists: true, canWrite: true, isDirectory: true, isFile: false);
/sdcard/MyDirectory (exists: true, canWrite: true, isDirectory: true, isFile: false);
/sdcard (exists: true, canWrite: true, isDirectory: true, isFile: false);
/ (exists: true, canWrite: false, isDirectory: true, isFile: false);
The strange thing is that the parent directory is writable (canWrite=true), I can't print the execute file permission but from what I've read, write is what you need when creating directories... What I've looked at so far is the WRITE_EXTERNAL_STORAGE permission, if the sd card is full and if the sdcard is mounted read only:...........................
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CODE:....................
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