The code below works fine if I give statically but
imgDescView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:
[NSURL URLWithString:[NSString stringWithFormat:#"http://4cing.com/mobile_app/uploads/pageicon/6.jpg"]]]];
Same code - I am passing the image url name dynamically it's not working
imgDescView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:
[NSURL URLWithString:[NSString stringWithFormat:#"%#",[imagename objectAtIndex:0]]]];
You need to verify the NSArray contents. Log out the objects of the array:
NSLog(#"imagename = %#",[imagename description]);
Also, a side-note - might want to think about loading that image dynamically. I wrote a class that makes this pretty painless:
https://stackoverflow.com/a/9786513/585320
The answer is geared toward using in TableViews (where lag would really hurt performance), but you can (and I do) use this for any web image loading. This keeps the UI fluid and is very fast.
NSMutableArray *imagename = [[NSMutableArray alloc] initWithObjects:#"http://4cing.com/mobile_app/uploads/pageicon/6.jpg", nil];
UIImageView *imgDescView = [[UIImageView alloc] initWithFrame:CGRectMake(0,0, 200, 200)];
imgDescView.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:
[NSURL URLWithString:[NSString stringWithFormat:#"%#",[imagename objectAtIndex:0]]]]];
it is working ... i think u r not creating array properly.
Hi create url in this manner
[NSURL URLWithString:[[NSString stringWithFormat:#"%#",[imagename objectAtIndex:0]] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]
i think it will work and will resolve ur problem.
Related
I have a NSMutableArray where it stores url to a image. And this NSMutableArray is called userPic. From my server it only prints out the url: not JSON or anything, only the url.
I can see in the output in Xcode that it shows the url, but how to I get this url in userPic to a background? Im trying to addSubView with the image for a background.
If something is unclear, sorry about that. Just let me know.
Please try to use this one.And i think your URL at index 0 of your array.
NSURL *imgURL = [NSURL URLWithString:[userPic objectAtIndex:0]]; // put your particular index where your image url in your array...
NSData *imgData = [[NSData alloc]initWithContentsOfURL:imgURL];
UIImage *img = [UIImage imageWithData: imgData];
[newView setBackgroundColor:[UIColor colorWithPatternImage:img]]
When trying to Parse the XML file from remote web server, I can parse the data from XML file successfully. From the XML file i tried to retrieve an image URL and assign it to a UIImageView for a view controller. here am getting the following Error,
ARC Semantic Issue: No known class method for selector 'imageWithContentsOfUrl:'
Sematic Issue: Incompatible pointer types sending 'NSURL *__strong' to parameter of type 'NSString *'
Below is my code,
//My View Controller
[super viewDidLoad];
NSURL *url = [NSURL URLWithString:#"http://sample.com/Products.xml"];
EGSParser *parser = [[EGSParser alloc] init];
// Error in below line( here firstImage is a UIImageView property)
self.firstImage.image = [UIImage imageWithContentsOfUrl:[NSURL URLWithString:url]];
if ([parser loadXMLByURL:url]) {
NSLog(#"success; products=%#",parser.products);
self.xmlProductsResults = parser.products;
}
else
{
NSLog(#"Log Fail");
}
Kindly Suggest me an idea to solve this.
Try this :-
Replace
self.firstImage.image = [UIImage imageWithContentsOfUrl:[NSURL URLWithString:url]];
with
NSData *mydata = [[NSData alloc] initWithContentsOfURL:url];
self.firstImage.image = [UIImage imageWithData:mydata];
Hope it helps you..
Change this line :
self.firstImage.image = [UIImage imageWithContentsOfUrl:[NSURL URLWithString:url]];
to
self.firstImage.image = [UIImage imageWithContentsOfFile:[NSString stringWithFormat:#"%#",url]];
You have a typo, it is imageWithContentsOfURL: (capital URL) and not imageWithContentsOfUrl:. That's why the class method is not recognized.
Edit: also, it is a method of CIImage and not UIImage.
Should work, just replace
self.firstImage.image = [UIImage imageWithContentsOfUrl:[NSURL URLWithString:url]] ;
with
self.firstImage.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:url]];
NB: the NSUrl url should be an image url
I want get image from public perfil of Facebook and show it in my iPhone. I'm using the Facebook Developer method "getPhoto" but I can´t show any image?
Can someone help me?
NSString *url = [[NSString alloc] initWithFormat:#"https://graph.facebook.com/%#/picture",objectID];
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:url]]];
As told Previously your problem to retrieve the object id. Here is the solution:-
To retrieve the images of your friend. Create the connection with the url
NSString *url = [[NSString alloc] initWithFormat:#"https://graph.facebook.com/me/friends?access_token=%#",accessTokenValue];
above url when hit returns an array of dictionary in which name of your friend and his id is written. Just Json parse that you will get the id of the person.
you need to use graph api for this purpose
NSString *url = [[NSString alloc] initWithFormat:#"https://graph.facebook.com/%#/picture",objectID];
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:url]]];
Hey all. I'm really new at this obj-c/xcode stuff. I'm trying to load the background of my xib file. To do this i'm using a UIImageView and populating that with an image I found from the net. the problem with that is that it's REALLY slow. Feels like it's crashing but it's not. I was told to use an NSURLConnection to fix the problem but don't know how. Here's the code i was using previously.
wallpaper.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://mysite.com/mobile/wallpaperR.asp?id=%i",customerID]]]];
How do i translate the above code into the NSURLConnection equivalent?
NSURLConnection will download the data in a new thread, so you app will feel much faster.
It is pretty easy to implement but it does require you to understand the concept of delegation.
I have a useful class I created to handle image downloads on separate threads, I will share the code with you, with comments to let you know what is going on:
AsyncImage.h
AsyncImage.m
If you need help implementing it just leave a comment and I can help you get it working, I remember this used to be pain for me too when I started developing.
You need to do parsing for this as you are using the webservice.Like this
-(void)startParsingForPhotoAlbumList:(NSString*)providerIdString
{
NSString *urlString = [NSString stringWithFormat:#"http://YourUrl/showalbumxml.php?id=%#&show=show",providerIdString];
NSURL *xmlURL = [NSURL URLWithString:urlString];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] initWithURL:xmlURL cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:30.0]autorelease];
NSURLResponse *returnedResponse = nil;
NSError *returnedError = nil;
NSData *itemData = [NSURLConnection sendSynchronousRequest:request returningResponse:&returnedResponse error:&returnedError];
self.xmlParser = [[NSXMLParser alloc] initWithData:itemData];
[xmlParser setDelegate:self];
[xmlParser parse];
}
and need to implement parser's delegate method as an example.
- (void)parserDidEndDocument:(NSXMLParser *)parser
{
if ([[[resultArray objectAtIndex:1]objectForKey:#"Transaction"]isEqualToString:#"Myapp/snaps"])
{
[(LoginViewController *)obj getRegisterResult:resultArray];
}
}
Then in your Viewcontroller access the data,from parsing you need to pass objects,using array or dictionary.
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:itemImagePath]];
UIImage *image = [[UIImage alloc] initWithData:imageData];
There is an example which may help:
NSURLConnection loading image example
I've got some code to load an image from a URL, it seems to work ok. Unless the URL contains curly brackets. This seems like it is a string formatting problem? I can't figure it out.
ex
#"http://site/image.png //works
#"http://site/{image}.png //doesn't work
NSString* mapURL = #"http://site.com/directory/{map}.png";
NSLog(mapURL);
NSData* imageData = [[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:mapURL]];
UIImage* image = [[UIImage alloc] initWithData:imageData];
[imageView setImage:image];
[imageData release];
[image release];
thanks
i found this helpful
http://simonwoodside.com/weblog/2009/4/22/how_to_really_url_encode/