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Re: iPhone: UIWebView not displaying until scrolled?
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Re: iPhone: UIWebView not displaying until scrolled?


  • Subject: Re: iPhone: UIWebView not displaying until scrolled?
  • From: Peter Blazejewicz <email@hidden>
  • Date: Thu, 11 Feb 2010 21:36:51 +0100

Hi Eric,

can you post how your web view is animated?
If I setup quick test case:

@implementation WebViewController
@synthesize webView;


- (void)viewDidLoad
{
    [super viewDidLoad];
    self.webView.delegate = self;
    NSString *path = [[NSBundle mainBundle] pathForResource:@"index"
ofType:@"html"];
    NSURL *url = [[NSURL alloc] initFileURLWithPath:path];
    [self.webView loadRequest:[NSURLRequest requestWithURL:url]];
    self.webView.alpha = 0.0;
    [url release]; url = nil;
}
- (void)viewDidUnload
{
    self.webView = nil;
}

- (void)dealloc
{
    [webView release]; webView = nil;
    [super dealloc];
}

-(void)webViewDidFinishLoad:(UIWebView *)webView
{
    NSString *loadHandlerStr = @"window.pageLoaded()";
    [self.webView stringByEvaluatingJavaScriptFromString:loadHandlerStr];
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.5];
    self.webView.alpha = 1.0;
    [UIView commitAnimations];
}
@end

both UIWebView is animated (and visible) and also content within html
web page is drawn (and animated):
(JavaScript/CSS)
from opacity 0.0:
 -webkit-transition: opacity 2s linear;

to 1.0:
elem.style.opacity = 1.0;

maybe that is some different issue that somehow became apparent on
your web view use,

regards,
Peter Blazejewicz
On Thu, Feb 11, 2010 at 8:40 PM, Eric E. Dolecki <email@hidden> wrote:
> I am animating a UIWebView after it's loaded - but it doesn't display
> anything unless I scroll it a little bit. If I call [webView reload]; my
> webViewDidFinishLoad gets called - and that is where I put my [webView
> reload] call to fix the display. What is the workaround aside from placing
> the UIWebView in the main screen a few pixels?
>
> --
> http://ericd.net
> Interactive design and development
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  • Follow-Ups:
    • Re: iPhone: UIWebView not displaying until scrolled?
      • From: "Eric E. Dolecki" <email@hidden>
References: 
 >iPhone: UIWebView not displaying until scrolled? (From: "Eric E. Dolecki" <email@hidden>)

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