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POScroll bar set on Bar chart in android using achartengine
 

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    <p>In my project i have to display the bar chart for 30 days with daily net amount. While view of bar chart activity the X-axis labels were collapsed and <strong>all are</strong> *<em>shown</em>* without any spacing. While i clicked the zoom buttons that time the views are expanded and we can see the bar with their corresponding x-axis labels. I need to show the bar chart on expanded view on the time of activity started.</p> <h2>Coding for display the Bar Chart:</h2> <pre><code> XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer(); renderer.setAxisTitleTextSize(16); renderer.setChartTitleTextSize(20); renderer.setLabelsTextSize(15); renderer. setLegendTextSize(15); // renderer.setInScroll(true); //renderer.setMargins(new int[]{10,10,10,0}); int length = colors.length; for (int j = 0; j &lt; length; j++) { SimpleSeriesRenderer r = new SimpleSeriesRenderer(); r.setColor(colors[j]); renderer.addSeriesRenderer(r); } if(flag==1) renderer.setChartTitle("Monthly Basis"); if(flag==0) renderer.setChartTitle("Weekly Basis"); if(flag==2) renderer.setChartTitle("Yearly Basis"); renderer.setXTitle("Date"); renderer.setYTitle("NetAmount"); renderer.setXAxisMin(0); //renderer renderer.setYAxisMin(100); // renderer.setYAxisMax(35000); renderer.setAxesColor(Color.GRAY); renderer.setLabelsColor(Color.LTGRAY); renderer.setXLabels(0); //renderer.setYLabels(31); renderer.setDisplayChartValues(true); renderer.setXLabelsAlign(Align.LEFT); renderer.setYLabelsAlign(Align.RIGHT); if(flag==0 || flag==1) { for(int axis=1;axis&lt;=31;axis++) { String d; d=String.valueOf(axis); renderer.addTextLabel(axis,d); } } else { renderer.setXAxisMin(2005); for(int axis=2005;axis&lt;=2011;axis++) { String d; d=String.valueOf(axis); renderer.addTextLabel(axis,d); } // renderer.setXLabels(4); } //renderer.setPanEnabled(false,false); //renderer.setZoomEnabled(false,false); // renderer.setPanLimits(new double[] { 0, 32, -10, 40 }); // renderer.setZoomLimits(new double[] { 0, 32, -10, 40 }); renderer.setZoomRate(3.0f); renderer.setBarSpacing(0.25); //renderer.set(new double[] {0,30,100,35000}); //Intent in; List&lt;double[]&gt; xvalues = new ArrayList&lt;double[]&gt;(); int count=1,j=0; if(flag==0 || flag==1) { double xdata[]=new double[31]; while(count&lt;32) { xdata[j]=count; count++; j++; } xvalues.add(xdata); } if(flag==2) { double xdata[]=new double[7]; count=2005; while(j&lt;7) { xdata[j]=count; count++; j++; } xvalues.add(xdata); } // return ChartFactory.getBarChartIntent(context, buildBarDataset(titles,xvalues,values), renderer, // Type.DEFAULT); mchart=ChartFactory.getBarChartView(context,buildBarDataset(titles,xvalues,values), renderer, Type.STACKED); //LinearLayout layout = (LinearLayout) findViewById(R.id.chart1); layout.addView(mchart); mchart.repaint(); //startActivity(in); } protected XYMultipleSeriesDataset buildBarDataset(String[] titles, List&lt;double[]&gt; xvalues, List&lt;double[]&gt; values) { XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset(); int length = titles.length; for (int i = 0; i &lt; length; i++) { //CategorySeries series = new CategorySeries(titles[i]); XYSeries series = new XYSeries(titles[i]); double[] v = values.get(i); double[]x=xvalues.get(i); int seriesLength = v.length; for (int k = 0; k &lt; seriesLength; k++) { if(v[k]==0) { v[k]=MathHelper.NULL_VALUE; } else { series.add(x[k],v[k]); } //Log.i("Invent","X Axis"+x[k]); //series.add(xdata[k],v[k]); } dataset.addSeries(series); for (int k = 0; k &lt; seriesLength; k++) { if(v[k]==MathHelper.NULL_VALUE) { v[k]=0; } } } return dataset; } } </code></pre>
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    1. USVenkatesh
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    1. COIt's really hard to understand what you describe, could you add a picture or try to write in another way? What do you mean with congested? Above each other? Also some short code where you add the values to the bar chart could help.
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      1. USlarlin
    2. COThank you for Reply larlin. Sorry for that issue. For your understanding i added my code now. Please verify it. In this coding i had set the x-axis value as 31 and their corresponding y-axis values. The problem occur on Bar chart View set the x-axis labels were collapsed with another. The View is form of 31 entries are appeared within on view screen at a time. So i want to set the scroll bar to view the 30 days value with accurate spacing
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      1. USVenkatesh
    3. COlarlin sir. Can u understand it? Please help me . It's urgent.
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