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POiphone graph api not working to post image in facebook
 

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    <p><strong>using this method to post the image</strong></p> <pre><code>- (void)postInAppFacebook { btnForLogout.hidden=NO; NSMutableDictionary *variables = [NSMutableDictionary dictionaryWithCapacity:3]; NSData *imageData = UIImageJPEGRepresentation(imgPicture.image, 4.0); UIImage *picture = [[UIImage alloc]initWithData:imageData]; FbGraphFile *graph_file = [[FbGraphFile alloc] initWithImage:picture]; [variables setObject:graph_file forKey:@"file"]; [variables setObject:[NSString stringWithFormat:@"%@", txtComment.text] forKey:@"message"]; **[fbGraph doGraphPost:@"me/photos" withPostVars:variables];** NSLog(@"Now log into Facebook and look at your profile &amp; photo albums..."); UIAlertView *alertForImageHasPost=[[UIAlertView alloc]initWithTitle:@"MAP IMAGE POST" message:@"SELECTED IMAGE POSTED" delegate:self cancelButtonTitle:@"CANCEL" otherButtonTitles:@"OK",nil]; [alertForImageHasPost show]; [alertForImageHasPost release]; [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO]; } </code></pre> <p><strong>problem in this method</strong> second time its crash but working well in simulator</p> <pre><code>- (FbGraphResponse *)doGraphPost:(NSString *)action withPostVars:(NSDictionary *)post_vars { NSLog(@"action is %@",action); FbGraphResponse *return_value = [[FbGraphResponse alloc] init]; NSString *urlString = [NSString stringWithFormat:@"https://graph.facebook.com/%@", action]; NSURL *url = [NSURL URLWithString:urlString]; NSString *boundary = @"----1010101010"; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@"POST"]; [request addValue:contentType forHTTPHeaderField: @"Content-Type"]; NSMutableData *body = [NSMutableData data]; [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; NSEnumerator *enumerator = [post_vars keyEnumerator]; NSString *key; NSString *value; NSString *content_disposition; //loop through all our parameters while ((key = (NSString *)[enumerator nextObject])) { //if it's a picture (file)...we have to append the binary data if ([key isEqualToString:@"file"]) { /* * the FbGraphFile object is smart enough to append it's data to * the request automagically, regardless of the type of file being * attached */ FbGraphFile *upload_file = (FbGraphFile *)[post_vars objectForKey:key]; [upload_file appendDataToBody:body]; //key/value nsstring/nsstring } else { value = (NSString *)[post_vars objectForKey:key]; content_disposition = [NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", key]; [body appendData:[content_disposition dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[value dataUsingEncoding:NSUTF8StringEncoding]]; }//end else [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; }//end while //add our access token [body appendData:[@"Content-Disposition: form-data; name=\"access_token\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[accessToken dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; //button up the request body [body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [request setHTTPBody:body]; [request addValue:[NSString stringWithFormat:@"%d", body.length] forHTTPHeaderField: @"Content-Length"]; //quite a few lines of code to simply do the business of the HTTP connection.... NSURLResponse *response; NSData *data_reply; NSError *err; **//crash after this line** *** &gt; data_reply = [NSURLConnection sendSynchronousRequest:request &gt; returningResponse:&amp;response error:&amp;err]; *** return_value.htmlResponse = (NSString *)[[NSString alloc] initWithData:data_reply encoding:NSUTF8StringEncoding]; if (err != nil) { return_value.error = err; } /* * return the json array. we could parse it, but that would incur overhead * some users might not want (not to mention dependencies), besides someone * may want raw strings back, keep it simple. * * See: http://code.google.com/p/json-framework for an easy json parser */ return return_value; } </code></pre>
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