iphone - controlling order of received data in NSURLConnection? -


i have array of urls use receive associated images remote server using nsurlconnection 

nsurl *url = [nsurl urlwithstring:urlstring];         nsmutableurlrequest *urlrequest = [nsmutableurlrequest                                            requestwithurl:url                                             cachepolicy:nsurlrequestuseprotocolcachepolicy                                            timeoutinterval:2.0f];             // run network request asynchronously         nsurlconnection *urlconnection = [[nsurlconnection alloc] initwithrequest:urlrequest delegate:self];

in delegate protocol 

- (void)connection:(nsurlconnection *)connection didreceivedata:(nsdata *)data {    // chuncks of image received, build our data file     [self.imagedata appenddata:data]; }

and 

- (void)connectiondidfinishloading:(nsurlconnection *)connection { // data has been downloaded, can set image in images array _img = [uiimage imagewithdata:self.imagedata]; [self.imagesarray insertobject:_img atindex:_index]; [self.imagedata setlength:0]; _index = _index+ 1; }

but order of received not same order of sending url request tried using instance variable index insert these images in same order in images array not work , still getting unordered listings , point me in right direction how achieve this.

in general if downloading images rely on excellent afnetworking classes. http://afnetworking.com provides overall behavior looking (one takes uiimageview, , default image, deliver image bytes)

if there reason must make own, have dictionary of download name nsurlconnection. allow figure out download has asynchronously completed, , act correctly on it.

if mean synchronous delivery of download objects, dispatch them 1 @ time, wait response, , start next on completion.


Comments

Post a Comment

Popular posts from this blog

java.util.scanner - How to read and add only numbers to array from a text file -

i'm learning java , have question regarding reading file want read numbers file contains strings well. here example of file: 66.56 "3 java 3-43 5-42 2.1 1 and here coding: public class test { public static void main (string [] args){ if (0 < args.length) { file x = new file(args[0]); try{ scanner in = new scanner( new fileinputstream(x)); arraylist<double> test = new arraylist<>(); while(in.hasnext()){ if(in.hasnextdouble()){ double f=in.nextdouble(); test.add(f);} else {in.next();} } catch(ioexception e) { system.err.println("exception during reading: " + e); } } my problem add 66.56,2.1 , 1 doesn't add 3 after "3 or ignores 3-43 , 5-42 can tell me how skip strings , add doubles here? thanks all said 3 ie; "3, 3-43 , 4-42 strings either u read string , split , check number @ " , - or put in space between characters , integers. jvm after compilation tre...
Read more

rewrite - Trouble with Wordpress multiple custom querystrings -

i'm working on adding multiple querystring , doesn't seem work. i've found codes seems work others might i'm missing something. i want like: http://mydomain.com/board/?getyear=2013&getsometext2=sometext to http://mydomain.com/board/2013/sometext/ i added code below functions.php file. doesn't seem work should though. this works. echoing querystring gets both variable without problem. http://mydomain.com/board/2013/sometext/ but doesn't. tested querystring vis isset() seems nothing being set/get http://mydomain.com/board/2013/ function add_query_vars($vars) { $vars[] = "getyear"; $vars[] = "getsometext2"; return $vars; } add_filter('query_vars', 'add_query_vars'); function add_rewrite_rules($arules) { $anewrules = array('board/([^/]+)/([^/]+)/?$' => 'index.php?pagename=board&getyear=$matches[1]&getsometext2=$matches[2]'); $arules = $a...
Read more