code: @Override
      protected void initializeGraph() {
          super.initializeGraph();
          mData = new ArrayList<>();
  
          mSeperatorPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
          mSeperatorPaint.setStyle(Paint.Style.FILL_AND_STROKE);
          mSeperatorPaint.setStrokeWidth(mSeparatorWidth);
          mSeperatorPaint.setColor(0xFFFFFFFF);
  
          mTextPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
          mTextPaint.setTextSize(mTextSize);
          mTextPaint.setTextAlign(Paint.Align.CENTER);
          mTextPaint.setColor(0xFFFFFFFF);
  
          if(this.isInEditMode()) {
              StackedBarModel s1 = new StackedBarModel();
  
              s1.addBar(new BarModel(2.3f, 0xFF123456));
              s1.addBar(new BarModel(2.f,  0xFF1EF556));
              s1.addBar(new BarModel(3.3f, 0xFF1BA4E6));
  
              StackedBarModel s2 = new StackedBarModel();
              s2.addBar(new BarModel(1.1f, 0xFF123456));
              s2.addBar(new BarModel(2.7f, 0xFF1EF556));
              s2.addBar(new BarModel(0.7f, 0xFF1BA4E6));
  
              addBar(s1);
              addBar(s2);
          }
      }
docs: This is the main entry point after the graph has been inflated. Used to initialize the graph
  and its corresponding members.