Question

I have to make som changes to a iPhone app…

How can i change the background on a UIViewController on load (viewDidLoad) .. I have to show a .png from a URL .. Is that posible?

I have tried:

NSURL *url = [NSURL URLWithString:@"http://url_to_my_project/xmas-bg-test.png"];
NSData *data = [NSData dataWithContentsOfURL:url];
UIImage *image = [UIImage imageWithData:data];

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

this is from my : “- (void)viewDidLoad” method .. Nothing happend when I start my app.. no errors ether.

I have also tried from my .. viewDidAppear

Answer 1

You have to create UIImageView as a background image. Remove self.view.backgroundColor = ... line and add this:

UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
imageView.frame = self.view.frame;
[self.view addSubview:imageView];
[self.view sendSubviewToBack:imageView];

in viewDidLoad: method.