CODEWITHSUNDEEP
iosobjective-cuiimageviewimageview
sathya
sathya

Reputation: 135

Image fetched from webservice is not displaying in viewcontroller

I tried fetching the image location but its not displaying it in UIImageView, the code which is used for fetching is,

in class.h file,

@property (strong, nonatomic) IBOutlet UIImageView *imageview;

class.m file,

NSString *imagee;

imagee = [result objectForKey:@"image"];
NSLog(@"image is %@ \n",imagee);

the 'imagee' string could return the exact url for the image.

code for image displaying is,

UIImage *imagevieww = [UIImage imageNamed:[result objectForKey:@"image"]];
imageview.image = imagevieww;

but at final i could get the empty space where the image should be placed.

Upvotes: 1

Views: 1411

Answers (7)

Jeremy
Jeremy

Reputation: 386

I did the following and it works for me.

NSURL *url = [NSURL URLWithString:@"http://www.yourdomain.com/imagename.png"];
NSData *myData = [NSData dataWithContentsOfURL:url];
UIImage *image = [[UIImage alloc] initWithData:myData];
["%storyboardImageName%" setImage:image];

Please note that storyboardImagename is the variable that you put on the xib or storyboard. You will need to change it. Also note the 'setImage' attribute which actually ties it together.

Hope this helps.

Upvotes: 0

sathya
sathya

Reputation: 135

Found the answer for my problem, thanks for everyone who helped me to find this answer.

UPDATED: Include 'http' with the urlstring so that, it can fetch the correct image from the webservice.

 NSString *urlString = [NSString stringWithFormat:@"http://%@",[result objectForKey:@"image"]];
    NSLog(@"url image is %@ \n",urlString);

    NSData *imageData = [[NSData alloc] init];

   imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:urlString]];

    NSLog(@"image data is %@",imageData);

    imageview.image = [UIImage imageWithData:imageData];

Upvotes: 2

Imran
Imran

Reputation: 1715

Convert the URL into UIImage,

Try This:

NSURL *url = [NSURL URLWithString:@"http://yoursite.com/imageName.png/jpg"];

NSData *myData = [NSData dataWithContentsOfURL:url];

UIImage *image = [[[UIImage alloc] initWithData:myData] autorelease];

Use this image on imageview. If you are getting problem then try to download the image in background. Follow this Link

Upvotes: -1

Kasirajan M
Kasirajan M

Reputation: 135

.h

@property (strong, nonatomic) IBOutlet UIImageView *imageView;

.m

Get Image From Webservices:

NSURL *url = [NSURL URLWithString:@"http://www.site.com/image.jpg"];
NSData *myImageData = [NSData dataWithContentsOfURL:url];        
UIImage *image = [[UIImage alloc] initWithData:myImageData];

Set Image to ImageView:

imageView.image = image;

Upvotes: 0

Prasad_R
Prasad_R

Reputation: 557

Try this

NSString *imageString = [NSString stringWithFormat:@"data:image/jpg;base64,%@",[yourDict objectForKey:@"ImageString"]];
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:imageString]];
UIImage *image = [UIImage imageWithData:imageData];

Upvotes: 0

Amar
Amar

Reputation: 13222

The UIImage method imageNamed: is used to load image present locally. In your case you need to download the image from the URL. There are various ways to do this based on requirement.

Easiest one is,

//URL encode the string
NSString *url = [[result objectForKey:@"image"] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:url]];
imageview.image = [UIImage imageWithData:imageData];

This will download the image synchronously and on the main thread(if called from main thread). You want to do this asynchronously on background thread. Usually dispatch_async(GCD) is used for doing this.

Hope that helps!

Upvotes: 1

wesley
wesley

Reputation: 859

If 'imagee' returned exact url , then fetch the image from web service should be like this.

imageview.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[result objectForKey:@"image"]]]];

Upvotes: 0

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