android - Loading custom url in webview -

in app, loading "http" url in webview. url loaded correctly, there internal url's loaded protocol "sheet://". while loading url error "protocol isn't supported". can please how fix this? how load url's protocol "sheet://" ?

ps: using shouldoverrideurlloading method load url.

this code using

 public boolean shouldoverrideurlloading(webview view, string url) {         if(url.contains("sheet://")){           intent url_intent = new intent ( intent.action_view,uri.parse(url));           url_intent.addcategory(intent.category_browsable);           startactivity(url_intent);           return false;          }else{               view.loadurl(url);               return true;          }  } 

thanks & regards,

perhaps host php file, header?

<?php header("location: sheet://link_to_your_file.extention"); ?>