How to determine if a resize event was triggered by soft keyboard in mobile browser?

I recently ran into some problems that needed a check for this. I managed to solve it like so:

$(window).on('resize', function(){
   // If the current active element is a text input, we can assume the soft keyboard is visible.
   if($(document.activeElement).attr('type') === 'text') {
      // Logic for while keyboard is shown
   } else {
      // Logic for while keyboard is hidden
   }
});

I only needed it for text inputs, but obviously this could be expanded for any kind of element which might trigger the soft keyboard/number picker etc.