Android songs fetching from SD card

Question

I am fetching my songs from the SD card and putting him to the list view.

I am using this method. but its taking some time and if path is different I didn\'t get tha

Answer 1

please use this code to implement this functionality.

public class SdCardSongsFragment extends Fragment {
public File file;
private List myList;
private List mycountList;
private ListView listView;
private TextView pathTextView;
private String mediapath = new String(Environment.getExternalStorageDirectory().getAbsolutePath());
String selection =MediaStore.Audio.Media.DATA +" like ?";
String[] projection = {MediaStore.Audio.Media.DATA , MediaStore.Audio.Media.DISPLAY_NAME}; 
Cursor cursor2;
//your database elect statement 
String selection2 = MediaStore.Audio.Media.IS_MUSIC + " != 0";
//your projection statement 
String[] projection2= {
        MediaStore.Audio.Media._ID,
        MediaStore.Audio.Media.ARTIST,
        MediaStore.Audio.Media.TITLE,
        MediaStore.Audio.Media.DATA,
        MediaStore.Audio.Media.DISPLAY_NAME,
        MediaStore.Audio.Media.DURATION,
        MediaStore.Audio.Media.ALBUM_ID
};

private final static String[] acceptedExtensions= {"mp3", "mp2", "wav", "flac", "ogg", "au" , "snd", "mid", "midi", "kar"
    , "mga", "aif", "aiff", "aifc", "m3u", "oga", "spx"};

/** Called when the activity is first created. */
@Override

public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.activity_sdcrad_song, container, false);

    listView=(ListView) rootView.findViewById(R.id.pathlist);
    pathTextView=(TextView) rootView.findViewById(R.id.path);

    myList = new ArrayList();   
    mycountList= new ArrayList();   
    String root_sd = Environment.getExternalStorageDirectory().toString();
    Log.e("Root",root_sd);

    String state = Environment.getExternalStorageState();
    File list[] = null ;
    /* if ( Environment.MEDIA_MOUNTED.equals(state) || Environment.MEDIA_MOUNTED_READ_ONLY.equals(state) ) {  // we can read the External Storage...
        list=getAllFilesOfDir(Environment.getExternalStorageDirectory());
    }*/

    pathTextView.setText(root_sd);

    file = new File( root_sd ) ;       
    list = file.listFiles(new AudioFilter());
    Log.e("Size of list ","" +list.length);
    //LoadDirectory(root_sd);

    for( int i=0; i< list.length; i++)
    {

        String name=list[i].getName();
        int count =     getAudioFileCount(list[i].getAbsolutePath());
        Log.e("Count : "+count, list[i].getAbsolutePath());
        if(count!=0) {
            myList.add(name);
            mycountList.add(""+count);
        }


    }


    listView.setAdapter(new SDcardSongListAdapter(getActivity(), myList,mycountList ));

    listView.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView arg0, View arg1, int position,
                long arg3) {
            File temp_file = new File( file, myList.get( position ) );  

            if( !temp_file.isFile())        
            {


                file = new File( file, myList.get( position ));
                File list[] = file.listFiles(new AudioFilter());

                myList.clear();
                mycountList.clear();
                for( int i=0; i< list.length; i++)
                {
                    String name=list[i].getName();

                    int count =     getAudioFileCount(list[i].getAbsolutePath());
                    Log.e("Count : "+count, list[i].getAbsolutePath());
                    if(count!=0) {
                        myList.add(name);
                        mycountList.add(""+count);
                    }

                }

                pathTextView.setText( file.toString());
                //Toast.makeText(getApplicationContext(), file.toString(), Toast.LENGTH_LONG).show(); 
                listView.setAdapter(new SDcardSongListAdapter(getActivity(), myList,mycountList ));

            }

            else {
                Log.e("Not dirctory ", file.getAbsolutePath());
                Cursor cur=getAudioFileCursor(file.getAbsolutePath());
                Log.e("Cur count ", ""+cur.getCount());
                 MusicUtils.playAll(getActivity(), cur,position);
            }


        }
    });
    return rootView;



}

private int getAudioFileCount(String dirPath) {

     Log.e("Path :  ", dirPath);
    String[] selectionArgs={dirPath+"%"};
    Cursor cursor = getActivity().managedQuery(
            MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
            projection2,
            selection,
            selectionArgs,
            null);


    cursor2=cursor;
    if(cursor!=null)
        Log.e("Cur : ", ""+cursor.getCount());
    return cursor.getCount();
}

private Cursor getAudioFileCursor(String dirPath) {


    String[] selectionArgs={dirPath+"%"};
    Cursor cursor = getActivity().managedQuery(
            MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
            projection2,
            selection,
            selectionArgs,
            null);
    return cursor;
}




public void onBack() {
    String parent="";
    if(file!=null)
        parent = file.getParent().toString();

    file = new File( parent ) ;         
    File list[] = file.listFiles(new AudioFilter());

    myList.clear();
    mycountList.clear();
    for( int i=0; i< list.length; i++)
    {
        String name=list[i].getName();
        int count =     getAudioFileCount(list[i].getAbsolutePath());
        Log.e("Count : "+count, list[i].getAbsolutePath());
        if(count!=0) {
            myList.add(name);
            mycountList.add(""+count);

        }
        /*int count=getAllFilesOfDir(list[i]);
            Log.e("Songs count ",""+count);
            if(count!=0)*/

    }
    pathTextView.setText(parent);
    //  Toast.makeText(getApplicationContext(), parent,          Toast.LENGTH_LONG).show(); 
    listView.setAdapter(new SDcardSongListAdapter(getActivity(), myList,mycountList ));

}



// class to limit the choices shown when browsing to SD card to media files
public class AudioFilter implements FileFilter {

    // only want to see the following audio file types
    private String[] extension = {".aac", ".mp3", ".wav", ".ogg", ".midi", ".3gp", ".mp4", ".m4a", ".amr", ".flac"};

    @Override
    public boolean accept(File pathname) {

        // if we are looking at a directory/file that's not hidden we want to see it so return TRUE
        if ((pathname.isDirectory() || pathname.isFile()) && !pathname.isHidden()){
            return true;
        }

        // loops through and determines the extension of all files in the directory
        // returns TRUE to only show the audio files defined in the String[] extension array
        for (String ext : extension) {
            if (pathname.getName().toLowerCase().endsWith(ext)) {
                return true;
            }
        }

        return false;
    }      
}

}

XML file code :