code: def init_widget(self):
          
          super(AndroidProgressBar, self).init_widget()
          d = self.declaration
          self.set_indeterminate(self.indeterminate)
  
          if not self.indeterminate:
              if d.max:
                  self.set_max(d.max)
              if d.min:
                  self.set_min(d.min)
  
              self.set_progress(d.progress)
  
              if d.secondary_progress:
                  self.set_secondary_progress(d.secondary_progress)
docs: Initialize the underlying widget.