text: 
  package com.github.mikephil.charting.charts;
  
  import android.content.Context;
  import android.util.AttributeSet;
  
  import com.github.mikephil.charting.data.BubbleData;
  import com.github.mikephil.charting.interfaces.dataprovider.BubbleDataProvider;
  import com.github.mikephil.charting.renderer.BubbleChartRenderer;
  
  /**
   * The BubbleChart. Draws bubbles. Bubble chart implementation: Copyright 2015
   * Pierre-Marc Airoldi Licensed under Apache License 2.0. In the BubbleChart, it
   * is the area of the bubble, not the radius or diameter of the bubble that
   * conveys the data.
   *
   * @author Philipp Jahoda
   */
  public class BubbleChart extends BarLineChartBase<BubbleData> implements BubbleDataProvider {
  
      public BubbleChart(Context context) {
          super(context);
      }
  
      public BubbleChart(Context context, AttributeSet attrs) {
          super(context, attrs);
      }
  
      public BubbleChart(Context context, AttributeSet attrs, int defStyle) {
          super(context, attrs, defStyle);
      }
  
      @Override
      protected void init() {
          super.init();
  
          mRenderer = new BubbleChartRenderer(this, mAnimator, mViewPortHandler);
      }
  
      @Override
      public BubbleData getBubbleData() {
          return mData;
      }
  }
  