Can't change background for UIWebView in iOS

Question

Is there a way to change background color for UIWebView?

None of the colors set in IB effect UIWebView behavior: before actual content is l

Answer 1

Give this a try. It will fade the UIWebView in once it has finished loading and you won't see the flash.

@interface Web_ViewViewController : UIViewController <UIWebViewDelegate> {

UIWebView *web;
BOOL firstLoad;
}

@property (nonatomic, retain) IBOutlet UIWebView *web;
@end

...

(void)viewDidLoad {
    [super viewDidLoad];
    firstLoad = YES;
    web.delegate = self;
    web.alpha = 0.0;
    NSURL *clUrl = [NSURL URLWithString:@"http://www.apple.com"];
    NSURLRequest *req = [NSURLRequest requestWithURL:clUrl];
    [web loadRequest:req];
}

- (void)webViewDidFinishLoad:(UIWebView *)webView {
if (firstLoad) {
    firstLoad = NO;
    [UIView beginAnimations:@"web" context:nil];
    web.alpha = 1.0;
    [UIView commitAnimations];
    }
}

The animation block in webViewDidFinishLoad will fade the view in once it's loaded, or if you prefer to have it pop on then just remove the UIView calls.

Answer 2

None of the answers here worked for me, they all involved still some sort of flash. I found a working answer here: http://www.iphonedevsdk.com/forum/iphone-sdk-development/4918-uiwebview-render-speeds-white-background.html (I had to adjust the delay to .25 to avoid the flashing). Remember to check the UIWebView's "hidden" flag in InterfaceBuilder.

- (void)webViewDidFinishLoad:(UIWebView *)webView 
{
    [self performSelector:@selector(showAboutWebView) withObject:nil afterDelay:.25];          
}

- (void)showAboutWebView 
{
    self.infoWebView.hidden = NO;
}