title: AChartEngine does not display the maximum chart value
body: <p>I am trying to display horizontal bar chart using AChartEngine.</p>
  
  <p>In the bar chart, ChartValues should be displayed. (I am using XYSeriesRenderer.setDisplayChartValues(true) in my code.)</p>
  
  <p>Following is the rendered chart.</p>
  
  <p><a href="https://i.stack.imgur.com/RnY48.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RnY48.jpg" alt="horizontal bar chart"></a>
  </p>
  
  <p>As you can see, the maximum value is not displayed.
  I think the length of the x-axis (about 140) region is not enough to display the region of maximum chartvalue.
  Anyway, how can I display the maximum chartvalue in my chart?</p>
  
  <p>Here's my code.</p>
  
  <pre><code>renderer.setColor(Color.parseColor("#158aea"));
      renderer.setDisplayChartValues(true);
      renderer.setChartValuesTextSize(15);
      renderer.setChartValuesTextAlign(Align.LEFT);       
      myRenderer.setLabelsTextSize(15);
      myRenderer.setShowGridX(true);
      myRenderer.setShowLegend(true);
      myRenderer.setShowLabels(true);     
      myRenderer.addSeriesRenderer(renderer);
      myRenderer.setPanEnabled(false, false);     
      myRenderer.setXLabels(0);       
      myRenderer.setXLabelsAlign(Align.RIGHT);
      myRenderer.setYLabelsAlign(Align.RIGHT);
      myRenderer.setLegendTextSize(20);
      myRenderer.setBarSpacing(0.2);
      //myRenderer.setZoomEnabled(false, false);
      myRenderer.setShowAxes(true);
      myRenderer.setInScroll(true);
      myRenderer.setOrientation(Orientation.VERTICAL);        
      myRenderer.setApplyBackgroundColor(true);
      myRenderer.setBackgroundColor(Color.WHITE);
      myRenderer.setMarginsColor(Color.WHITE);        
      myRenderer.setLabelsColor(Color.BLACK);     
      myRenderer.setXLabelsColor(Color.BLACK);        
      myRenderer.setYLabelsColor(0, Color.BLACK);     
      myRenderer.setMargins(new int[] {60, -20, 80, 0});  
  </code></pre>