Image not set in Background

Question

I want to set image on view background. I am using this code.

 NSString *userString =[NSString stringWithFormat:@"http:///background/%@",myString];
 NSString *escapedDataString = [userString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 NSURL *imageUrl=[NSURL URLWithString:escapedDataString];


 UIImage *images=[UIImage imageWithCIImage:[CIImage imageWithContentsOfURL:imageUrl]];
 self.view.backgroundColor=[UIColor clearColor];
 self.view.backgroundColor =[UIColor colorWithPatternImage:[UIImage imageNamed:images]];

But i m getting error

[UIImage length]: unrecognized selector sent to instance 0x14629ce0 2015-04-28 15:50:02.662 BoomAGift[21865:2587355] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIImage length]: unrecognized selector sent to instance 0x14629ce0'

Please see my answer you have done small mistake. – Ashok Londhe Apr 28 '15 at 10:38 — Ashok Londhe, Apr 28 '15 at 10:38
Why don't you simply use a UIImageView? – Vivek Molkar Apr 28 '15 at 10:48 — Vivek Molkar, Apr 28 '15 at 10:48
try this...http://stackoverflow.com/a/8077854/3411787 – Mohammad Zaid Pathan Apr 28 '15 at 11:02 — Mohammad Zaid Pathan, Apr 28 '15 at 11:02
@Varun can you please up vote if my answer helps you. – Ashok Londhe May 26 '15 at 09:16 — Ashok Londhe, May 26 '15 at 09:16

score 2 · Answer 1 · answered Apr 28 '15 at 12:03

set-a-background-image-in-your-ios-application
or how-to-set-background-image-uiview

and ios-uiview-background-image

Objective-c

 UIGraphicsBeginImageContext(self.view.frame.size);
 [[UIImage imageNamed:@"YourImage"] drawInRect:self.view.bounds];
 UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
 UIGraphicsEndImageContext();

 self.view.backgroundColor = [UIColor colorWithPatternImage:image];

Swift

UIGraphicsBeginImageContext(self.view.frame.size)
UIImage(named:"YourImage")!.drawInRect(self.view.bounds)
var image: UIImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()

self.view.backgroundColor = UIColor(patternImage: image)

score 1 · Answer 2 · answered Apr 28 '15 at 11:44

You can download asynchronous UIImage with GCD.

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),
                   ^{
                       NSURL *imageURL = [NSURL URLWithString:@"http://www.southampton.ac.uk/~fangohr/computing/ImageMagick/pic.png"];
                       NSData *imageData = [NSData dataWithContentsOfURL:imageURL];

                       //This is your completion handler
                       dispatch_sync(dispatch_get_main_queue(), ^{

                           self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageWithData:imageData]];

                       });
                   });

Hope this help you.

@varun, let me know if you have any issue – Jatin Patel - JP Apr 28 '15 at 11:54 — Jatin Patel - JP, Apr 28 '15 at 11:54

Ashok Londhe · Accepted Answer · 2015-04-28T10:50:34.203

-1

Try this.

NSString *userString =@"http://www.fnordware.com/superpng/pnggrad16rgba.png";  
NSString *escapedDataString = [userString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURL *imageUrl=[NSURL URLWithString:escapedDataString];
UIImage *images=[UIImage imageWithCIImage:[CIImage imageWithContentsOfURL:imageUrl]];

UIImageView *imageView = [[UIImageView alloc] initWithImage:images];
[self.view addSubview:imageView];

UIColor *patternColor = [UIColor colorWithPatternImage:images];
UIView  *patternView = [[UIView alloc] initWithFrame:self.view.frame];
[patternView setBackgroundColor:patternColor];
[self.view addSubview:patternView];`

edited Apr 28 '15 at 10:50

answered Apr 28 '15 at 10:37

Ashok Londhe

1,491
11
29

wait.. i will try it first – Ashok Londhe Apr 28 '15 at 10:43
its problem of UIImage.. you will not getting proper image. – Ashok Londhe Apr 28 '15 at 10:44
there is tableview on my view. is this effect on seting an image. – varun Apr 28 '15 at 10:49
@varun Hey try it ... it will work for view as well as for tableview also. i have edited my answer check it. please inform me after solving your problem. – Ashok Londhe Apr 28 '15 at 10:51
image has been coming but they hide my all controller. tableview,button – varun Apr 28 '15 at 11:19
@varun no yar i have check it. i think your doing something wrong. please share your project or zip file of that so i can solve your problem. – Ashok Londhe Apr 28 '15 at 11:36
hi .. friend is my answer is wrong.. i am sure it is correct. please tell me the reason of down voting. – Ashok Londhe Apr 29 '15 at 06:10
Friend please explain why you have down voted my answer. so that next time i am not doing same mistake. – Ashok Londhe Apr 29 '15 at 06:16

Image not set in Background

3 Answers3