android - How to show all video thumbnails stored in a specific folder in sd card -

i getting bitmaps mediastore this

    public class videostoredinsdcard extends activity   {  private cursor videocursor;  private int videocolumnindex;  listview videolist;   int count;  string thumbpath;     string[] thumbcolumns = {          mediastore.video.thumbnails.data,mediastore.video.thumbnails.video_id };    /** called when activity first created. */    @override   public void oncreate(bundle savedinstancestate)  {  super.oncreate(savedinstancestate);  setcontentview(r.layout.main);  initialization();  }  private void initialization() {  system.gc();    string[] videoprojection = { mediastore.video.media._id,mediastore.video.media.data,    mediastore.video.media.display_name,mediastore.video.media.size };   videocursor =  managedquery(mediastore.video.media.external_content_uri,videoprojection,          null,    null, null);   count = videocursor.getcount();  videolist = (listview) findviewbyid(r.id.phonevideolist);   videolist.setadapter(new videolistadapter(this.getapplicationcontext()));  videolist.setonitemclicklistener(videogridlistener);  }    private onitemclicklistener videogridlistener = new onitemclicklistener() {  public void onitemclick(adapterview parent, view v, int position,long id)   {   system.gc();  videocolumnindex = videocursor.getcolumnindexorthrow(mediastore.video.media.data);  videocursor.movetoposition(position);  string filename = videocursor.getstring(videocolumnindex);  log.i("filename: ", filename);  //intent intent = new intent(videoactivity.this, viewvideo.class);  //intent.putextra("videofilename", filename);  //startactivity(intent);  }};   public class videolistadapter extends baseadapter  {  private context vcontext; int layoutresourceid;  public videolistadapter(context c) { vcontext = c; }    public int getcount()  {  return videocursor.getcount();  }   public object getitem(int position)  {  return position;  }  public long getitemid(int position) { return position; }  public view getview(int position, view convertview, viewgroup parent) {  view listitemrow = null;  listitemrow = layoutinflater.from(vcontext).inflate(r.layout.listitem, parent, false);    textview txttitle = (textview)listitemrow.findviewbyid(r.id.txttitle);   textview txtsize = (textview)listitemrow.findviewbyid(r.id.txtsize);   imageview thumbimage = (imageview)listitemrow.findviewbyid(r.id.imgicon);   videocolumnindex =         videocursor.getcolumnindexorthrow(mediastore.video.media.display_name);  videocursor.movetoposition(position);  txttitle.settext(videocursor.getstring(videocolumnindex));   videocolumnindex = videocursor.getcolumnindexorthrow(mediastore.video.media.size);  videocursor.movetoposition(position);  txtsize.settext(" size(kb):" + videocursor.getstring(videocolumnindex));    int videoid =   videocursor.getint(videocursor.getcolumnindexorthrow(mediastore.video.media._id));    cursor videothumbnailcursor =    managedquery(mediastore.video.thumbnails.external_content_uri,    thumbcolumns, mediastore.video.thumbnails.video_id+ "=" + videoid, null, null);  if (videothumbnailcursor.movetofirst())  {  thumbpath =     videothumbnailcursor.getstring(videothumbnailcursor.getcolumnindex(mediastore.video.thumbna     ils.data));  log.i("thumbpath: ",thumbpath);   } thumbimage.setimageuri(uri.parse(thumbpath));   return listitemrow;   }   }    } 

how thumbnails specific folder in sd card. using tutorial http://gypsynight.wordpress.com/2012/02/17/how-to-show-all-video-file-stored-in-your-sd-card-in-a-listview/

it can done way:

int videoid = videocursor.getint(videocursor.getcolumnindexorthrow(mediastore.video.media._id));  contentresolver cr = getcontentresolver(); bitmapfactory.options options=new bitmapfactory.options(); options.insamplesize = 1; bitmap curthumb = mediastore.video.thumbnails.getthumbnail(cr, videoid, mediastore.video.thumbnails.micro_kind, options); thumbimage.setimagebitmap(curthumb);