iOS webview注入JS

- (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()"];
}

目前沒用到，備份一下

原帖地址：http://ios.jobbole.com/84216/