UIWebView contentSize

UIWebView contentSize change

UIWebView在加载内容时有时候需要改变内容的字体大小，这个时候UIWebView的scrollView中的contentSize没有变化，解决该问题的方法如下：

-(void)webViewDidFinishLoad:(UIWebView *)webView
{
   		[SVProgressHUD dismiss];

	UserManagerFontType fontType = [UserManager getSystemFontType];
	NSArray *array = @[@"80%", @"100%", @"120%"];
	NSString *str = [NSStringstringWithFormat:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '%@'", array[fontType -  UserManagerFontTypeSmall]];
	[webView stringByEvaluatingJavaScriptFromString:str];

	CGRect webViewFrame = webView.frame;
	webViewFrame.size.height = 1;
	webView.frame = webViewFrame;
	CGSize fittingSize = [webView sizeThatFits:CGSizeZero];
	webViewFrame.size = fittingSize;
	webView.frame = webViewFrame;
}