Display images from XML!! HELP!!

[Lordpanzer]

Hey everyone,
I'm trying to display an image from an xml file online. The xml file has a <img>myurl</img> structure and the xml is parsed and than fed to an NSDictionary and than to a NSArray.

Here's the code. Now I know that i'm basically asking it to fetch a string of text, and not an image, but i've looked all over the web trying to find something but without sucess.

- (id)initWithDictionary:(NSDictionary *)dict {
	self = [super init];
	
	if (self) {
		self.title = @"Details";
		self.detailDictionary = dict;
		self.categories = [[dict valueForKey:@"img"] componentsSeparatedByString:@", "];
				
		[[self navigationItem] setLeftBarButtonItem:[[[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleDone target:self action:@selector(backButton:)] autorelease]];
		
		categoryPosition = 0;
	}

Thanks for any help and insight!!!

[Lordpanzer]

Nobody????? pleaseeeee!!

[smithdale87]

are you using NSXMLParser anywhere?

[CanadaDev]

	
NSString *param = image.URL; // the URL from the XML
NSString *encodedParam = [param stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *urlString = [NSString stringWithFormat: @"%@", param];
NSURL *url = [NSURL URLWithString:urlString];
UIImage *image = [[UIImage imageWithData: [NSData dataWithContentsOfURL: url]] retain];
finalImage = image;

[quischi79]

Hey everyone,

I have the same Problem with th display images from XML.
Already everything tried. can help their me?

accusing for my bad English ;-)

Thank you!

Here is the Code:

Parser Code

-(void)parsXMLFileAtURL:(NSString*)URL

{

tutorials  = [[NSMutableArrayalloc]init];

     NSURL* xmlURL = [NSURL URLWithString:URL];

xmlParser = [[NSXMLParser alloc]initWithContentsOfURL:xmlURL];

     [xmlParser setDelegate:self];

     [xmlParser parse];

     [xmlURL release];

}



- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict

{

currentElement = [elementName copy];

     if([elementName isEqualToString:@"newsticker"])

     {

item  = [[NSMutableDictionaryalloc]init];

currentTitle  = [[NSMutableStringalloc]init];

currentLink  = [[NSMutableStringalloc]init];

currentImage  = [[NSMutableStringalloc]init];

          

     }

}



- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName

{

     if([elementName isEqualToString:@"newsticker"])

     {

          [item setObject :currentTitleforKey:@"title"];

          [item setObject :currentLinkforKey:@"subtitle"];

          [item setObject :currentImageforKey:@"image"];

          

          [tutorials addObject :[itemcopy]];

     }

}



- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string

{

if([currentElement isEqualToString:@"title"])

     {

          [currentTitle appendString:string];

     }else if([currentElement isEqualToString:@"subtitle"])

     {

          [currentLink appendString:string];

          

     }else if([currentElement isEqualToString:@"image"])

     {

          [currentImage appendString:string];

     }

}



- (void)parserDidEndDocument:(NSXMLParser *)parser

{

     [self.tableView reloadData];

}

TableView

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {



    static NSString *CellIdentifier = @"Cell";



    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {

          

          cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];

          cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

          cell.selectionStyle = UITableViewCellSelectionStyleGray;

          cell.textLabel.font = [UIFont fontWithName:kFonttextLabel size:18.0f];

          cell.detailTextLabel.textColor = [UIColor redColor ];

    }

     

     int tutorialIndex = [indexPath indexAtPosition:[indexPath length]-1];

     cell.textLabel.text = [[tutorials objectAtIndex:tutorialIndex] objectForKey:@"title"];

     cell.detailTextLabel.text = [[tutorials objectAtIndex:tutorialIndex] objectForKey:@"subtitle"];

     

     NSString* theURL = [[tutorials objectAtIndex:tutorialIndex] objectForKey:@"image"];

     NSLog(theURL);



UIImage *theImage = [UIImage imageWithData :[ NSDatadataWithContentsOfURL: [NSURLURLWithString: theURL]]];



     cell.imageView.image = theImage;



    return cell;

}

[wizowsky]

Originally Posted by CanadaDev

	
NSString *param = image.URL; // the URL from the XML
NSString *encodedParam = [param stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *urlString = [NSString stringWithFormat: @"%@", param];
NSURL *url = [NSURL URLWithString:urlString];
UIImage *image = [[UIImage imageWithData: [NSData dataWithContentsOfURL: url]] retain];
finalImage = image;

I got the same problem and when I tried CanadaDev code, it worked like a charm!

Thanks CanadaDev!

[mbsaeger]

I am attempting to do the same thing. Could you show me a completed example of just fetching an image from an XML file?

[avanadra]

10010010000001111110000101100

[kapps11]

Are you guys having trouble with parsing the xml or just creating the image once u have the url?

[web20devxer]

Originally Posted by mbsaeger

I am attempting to do the same thing. Could you show me a completed example of just fetching an image from an XML file?

Originally Posted by avanadra

me too! Any luck, anyone?

There are numerous examples of how to parse a XML on the forum so I aint gonna reinvent the wheel here.

Once you get that done, you will have an array containing url, image link, title, etc..
you then apply CanadaDev code above to each url as you process the data in your array.

here's an example on how to do it http://imthi.com/blog/programming/ip...ource-code.php

[Begna112]

How do you implement canadadev's code? Like where do you put it?

[DangerWillRobinson]

Any information on where CanadaDev's code goes?

I've looked at his sample and several others with different solutions to no avail so far.

Parsing, as a whole I'm covered.

It's just adding the images to the table view that has me vexed.

Help, please!

[gud4nuthin]

try this
in cell

NSString *url1 = [NSString stringWithFormat:@"%@", aBook.image];//having image info
			NSString* url = [url1 stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
			
			
			NSLog(@"String = %@",url1);
			NSURL *imageURL = [NSURL URLWithString:url];
			
			NSLog(@"urlString = %@",imageURL);
			NSData *data =  [NSData dataWithContentsOfURL:imageURL];
			UIImage *image = [[UIImage alloc] initWithData:data];
			[imgView setImage:image];

[DangerWillRobinson]

Originally Posted by gud4nuthin

try this
in cell

NSString *url1 = [NSString stringWithFormat:@"%@", aBook.image];//having image info
			NSString* url = [url1 stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
			
			
			NSLog(@"String = %@",url1);
			NSURL *imageURL = [NSURL URLWithString:url];
			
			NSLog(@"urlString = %@",imageURL);
			NSData *data =  [NSData dataWithContentsOfURL:imageURL];
			UIImage *image = [[UIImage alloc] initWithData:data];
			[imgView setImage:image];

Thanks, Gud4nuthin- I'm getting there!

I get no errors but my console log says

String = (null)
urlString = (null)

Does this mean the url i'm parsing doesn't have images? It does, so I assume I'm off somewhere else. Again, the articles parse and load fine, no problem.

// Set up the cell
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.textLabel.textColor = [UIColor colorWithRed:153.0/255.0 green:202.0/255.0 blue:60.0/255.0 alpha:1.0];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.textLabel.textColor = [UIColor colorWithRed:153.0/255.0 green:202.0/255.0 blue:60.0/255.0 alpha:1.0];

int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1];
[cell.textLabel setText:[[stories objectAtIndex: storyIndex] objectForKey: @"title"]];
[cell.detailTextLabel setText:[[stories objectAtIndex: storyIndex] objectForKey: @"summary"]];
NSString *url1 = [NSString stringWithFormat:@"%@", currentImage];//having image info
NSString* url = [url1 stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];


NSLog(@"String = %@",url1);
NSURL *imageURL = [NSURL URLWithString:url];

NSLog(@"urlString = %@",imageURL);
NSData *data = [NSData dataWithContentsOfURL:imageURL];
UIImage *image = [[UIImage alloc] initWithData:data];
[imageView setImage:image];