UIWebView crashing on second pdf load request

Question

I have a UIWebView I\'m using to show several small PDF\'s. The user selects a news article from a table and then the article(PDF) is loaded in a UIWebView on the same screen.

Answer 1

I had a similar issue, with my UIWebView hanging (just freezing at a gray screen with the spinning "loading" circle that never ended). If I exited the program, it would make it crash the second time I loaded.

Finally I did enough tracing into it and flailing around that I found that if I loaded a label font (with a CCLabelTTF using Cocos2d) from the app resource bundle first, THEN tried to load the PDF, then it would work and wouldn't crash.

It's a very ugly hack, but someone else might find it useful.

// HACK: Loading a TTF font first is needed to properly load PDF / HTML
CCLabelTTF* label = [CCLabelTTF labelWithString:@"Testing" fontName:@"DIN-Black" fontSize:12];
[label setVisible:false];

// We never actually use the label -- we just create it so that it loads the font
NSString *path = [[NSBundle mainBundle]
                  pathForResource:myPDF
                  ofType:@"pdf"];

CCLOG(@"Retrieving PDF from '%@'", path);

NSURL *pdfUrl = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:pdfUrl];

[webView loadRequest:request];
[webView setScalesPageToFit:YES];
[super onEnter];