Android Loading System Gallery

 Public classMainactivityextendsActivityImplementsLoadercallbacks<cursor>{    PrivateListView listview=NULL; PrivateUri uri=NULL; PrivateContentresolver resolver=NULL; PrivateCursorloader cursorloader=NULL; Privatestring[] Projection =NewString[]{mediastore.images.media._id,mediastore.images.media.bucket_display_name}; PrivateSimplecursoradapter cursoradapter=NULL; Private Long[] IDs =NULL; PrivateLoadermanager loadermanager=NULL; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.activity_main); ListView=(ListView) Findviewbyid (R.id.listview); //gets the URI of the media pictureUri=MediaStore.Images.Media.EXTERNAL_CONTENT_URI; Resolver=Getcontentresolver (); Cursorloader=NewCursorloader ( This, Uri, projection,NULL,NULL,NULL); CursorAdapter=NewSimplecursoradapter ( This, R.layout.item,NULL, Projection,New int[]{r.id.textview_id,r.id.textview_name}, Simplecursoradapter.flag_register_content_observer);        Listview.setadapter (CursorAdapter); //get the ID of all the entriesids=Listview.getcheckeditemids (); Listview.setonitemclicklistener (NewOnitemclicklistener () {@Override Public voidOnitemclick (adapterview<?> Parent, view view,intPositionLongID) {IDs=Listview.getcheckeditemids (); TextView textview_id=(TextView) View.findviewbyid (r.id.textview_id); TextView Textview_name=(TextView) View.findviewbyid (r.id.textview_name); BooleanFLG =false;  for(inti = 0; i < ids.length; i++) {                                        if(id==Ids[i])                        {Textview_id.settextcolor ((color.blue));                        Textview_name.settextcolor (Color.Blue); FLG=true; }                                    }                                if(!FLG)                    {Textview_id.settextcolor ((color.black));                Textview_name.settextcolor (Color.Black);                }            }        }); Loadermanager=Getloadermanager (); Loadermanager.initloader (2,NULL, This); } @Override PublicLoader<cursor> Oncreateloader (intID, Bundle args) {        //TODO auto-generated Method Stub        returnCursorloader; } @Override Public voidOnloadfinished (loader<cursor>loader, Cursor data) {        //TODO auto-generated Method Stubcursoradapter.swapcursor (data); } @Override Public voidOnloaderreset (loader<cursor>loader) {        //TODO auto-generated Method StubCursoradapter.swapcursor (NULL); }        }

Android Loading System Gallery