OC UIWebView 笔记

• 使webView内容图片适应屏幕大小(插入JS语句)

- (void)webViewDidFinishLoad:(UIWebView *)webView {
  
     NSString *js = @"function imgAutoFit() { \\\\
     var imgs = document.getElementsByTagName('img'); \\\\
     for (var i = 0; i < imgs.length; ++i) {\\\\
        var img = imgs[i];   \\\\
        img.style.maxWidth = %f;   \\\\
     } \\\\
  }";
  js = [NSString stringWithFormat:js, [UIScreen mainScreen].bounds.size.width - 20];
 
  [webView stringByEvaluatingJavaScriptFromString:js];
  [webView stringByEvaluatingJavaScriptFromString:@"imgAutoFit()"];
}