Addition of imageview on current widget

I have an android app that is a battery widget, and has an imageview thta changes depending on the battery percentage, and a textview on top of it that displays the battery percentage. I also have some extra code that does all the functionality of the widget. I just need someonw to add the code to detwct whether the device is charging (usb or ac) and if it is charging, add a thunderbolt image overlapping the battery icon in the center and below the battery percwntage. Please don't touch or modify any of the code that's there, because the app works perfectly. I will share the project after awarding it. thanks.