Currently we do not have a file picker implementation in our mobile SDKs. 

Are you trying to add the file picker functionality into a mobile app using a webview?  

No,  I'm trying to add the file picker to our website and have it work on both desktop and mobile browsers.

The Box File Picker was designed for desktop web. I will share your feedback with our PM team. 

,

Thanks for sharing that feedback with your PM team.

Could you inquire if this feedback has been or will be incorporated into a future release?

Thank you.

Hello! Box recently announced UI Elements, one of which is the Content Picker, which should work on both desktop and mobile web.

Check it out and see if it works for your use case: https://developer.box.com/docs/box-content-picker

Larger Box UI Elements launch: https://developer.box.com/page/box-ui-elements