禁用wkwebview长按

• (void)noLongTouch
  {
  //禁止长按弹出 UIMenuController 相关
  //禁止选择 css 配置相关
  NSStringcss = @"body{-webkit-user-select:none;-webkit-user-drag:none;}";
  //css 选中样式取消
  NSMutableStringjavascript = [NSMutableString string];
  [javascript appendString:@"var style = document.createElement('style');"];
  [javascript appendString:@"style.type = 'text/css';"];
  [javascript appendFormat:@"var cssContent = document.createTextNode('%@');", css];
  [javascript appendString:@"style.appendChild(cssContent);"];
  [javascript appendString:@"document.body.appendChild(style);"];
  [javascript appendString:@"document.documentElement.style.webkitUserSelect='none';"];//禁止选择
  [javascript appendString:@"document.documentElement.style.webkitTouchCallout='none';"];//禁止长按
  //javascript 注入
  WKUserScript noneSelectScript = [[WKUserScript alloc] initWithSource:javascript
  injectionTime:WKUserScriptInjectionTimeAtDocumentEnd
  forMainFrameOnly:YES];
  WKUserContentControlleruserContentController = [[WKUserContentController alloc] init];
  [userContentController addUserScript:noneSelectScript];
  WKWebViewConfiguration*configuration = [[WKWebViewConfiguration alloc] init];
  configuration.userContentController = userContentController;
  //控件加载
  [self.myWebView.configuration.userContentController addUserScript:noneSelectScript];

}