Showing Camera option while uploading profile picture

Hi

While changing the profile picture from Mobile Device browser its asking for "Choose and action " and showing Camera and Documents, to capture or select image.
But when I am changing the profile picture from Mobile App its only showing documents to choose from, "Recent", "Images" etc. Its not showing Camera option.
I need to show Camera also, I am using Xamarin Forms with WebView. Application is rendering in WebView.

Thanks
GSalunkhe