-(void)setWebView{ self.view.backgroundColor = grayBGColor; UIWebView *webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 64, SCREEN_WIDT, SCREEN_HEIGH)]; webView.backgroundColor = [UIColor whiteColor]; webView.delegate = self; //编码图片 UIImage *selectedImage = [UIImage imageNamed:@"Guarantee"]; NSString *stringImage = [self htmlForJPGImage:selectedImage]; //构造内容 NSString *contentImg = [NSString stringWithFormat:@"%@", stringImage]; NSString *content =[NSString stringWithFormat: @"<html>" "<style type="text/css">" "<!--" "body{font-size:40pt;line-height:60pt;}" "-->" "</style>" "<body>" "%@" "</body>" "</html>" , contentImg]; //让self.contentWebView加载content [webView loadHTMLString:content baseURL:nil]; [self.view addSubview:webView]; } - (void)webViewDidFinishLoad:(UIWebView *)webView { //状态栏不显示网络状态，因为当前内容不是由网络下载的 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO; CGFloat webViewHeight=[webView.scrollView contentSize].height; CGRect newFrame = webView.frame; newFrame.size.height = webViewHeight; webView.frame = newFrame; } //编码图片 - (NSString *)htmlForJPGImage:(UIImage *)image { NSData *imageData = UIImageJPEGRepresentation(image,1.0); NSString *imageSource = [NSString stringWithFormat:@"data:image/jpg;base64,%@",[imageData base64Encoding]]; return [NSString stringWithFormat:@"<img src = "%@" />", imageSource]; }