BarGraphActivity.java

public class BarGraphActivity extends Activity implements OnItemClickListener{

	View mView;
	ArrayList<String> arrList = new ArrayList<String>();
	LinearLayout layout ;
	boolean flag = false;
	ArrayAdapter<String> adapter;
	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        arrList.add("Bar");
        arrList.add("Line");

        ListView mListView = (ListView) findViewById(R.id.list_view);
        layout = (LinearLayout)findViewById(R.id.i_l);
//        mListView.setVerticalScrollBarEnabled(false);
        mListView.setOnItemClickListener(this);
        adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arrList);
        mListView.setAdapter(adapter);

    }

	@Override
	public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {

		if(position == 0){

			// ChartFactory can return View or Intent

			XYMultipleSeriesRenderer renderer = Bar_Chart.getBarDemoRenderer();
			layout.removeAllViews();
			mView = ChartFactory.getBarChartView(this, Bar_Chart.getBarDemoDataset(), renderer, Type.DEFAULT);
            mView.setLayoutParams(new LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT) );
			layout.addView(mView);
		}
		else if (position == 1) {

			layout.removeAllViews();
			mView = ChartFactory.getLineChartView(this, Line_Chart.getLineDemoDataset(), Line_Chart.getLineDemoRenderer());
			mView.setLayoutParams(new LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT) );
			layout.addView(mView);
		}
	}
}


Bar_Chart.java

public class Bar_Chart {

	 public static XYMultipleSeriesRenderer getBarDemoRenderer() {
	        XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();

//	        renderer.setFitLegend(true);
//	        renderer.setZoomButtonsVisible(true);
//	        renderer.setFitLegend(true);

	        renderer.setAxisTitleTextSize(16); // Title of X-Axis & Y-Axis
	        renderer.setAxesColor(Color.RED);
	        renderer.setChartTitleTextSize(20); // Title Size
	        renderer.setLabelsTextSize(15); // Label's on X-Axis and Y-Axis
	        renderer.setLabelsColor(Color.WHITE);
	        renderer.setLegendTextSize(15);   // Legend Size(Demo series1, Demo series2)
	        renderer.setMargins(new int[] {20, 30, 15, 0}); // {margin from top, margin from left , margin from bottom, margin from right}

	        // First Single Renederer
	        SimpleSeriesRenderer r = new SimpleSeriesRenderer();
	        r.setColor(Color.WHITE);
	        renderer.addSeriesRenderer(r);

//	        // Second Single Renederer
//	        r = new SimpleSeriesRenderer();
//	        r.setColor(Color.GREEN);
//	        renderer.addSeriesRenderer(r);
//
//	        // Third Single Renederer
//	        r = new SimpleSeriesRenderer();
//	        r.setColor(Color.CYAN);
//	        renderer.addSeriesRenderer(r);
//
//	        // Fourth Single Renederer
//	        r = new SimpleSeriesRenderer();
//	        r.setColor(Color.WHITE);
//	        renderer.addSeriesRenderer(r);

	        /*
	         *
	         * Dataset and renderer should be not null and should have the same number of series
	         *
	         */

	        return renderer;
	      }

//	    public static void setChartSettings(XYMultipleSeriesRenderer renderer) {
//	        renderer.setChartTitle("Chart demo");
//	        renderer.setXTitle("x values");
//	        renderer.setYTitle("y values");
//	        renderer.setXAxisMin(0.5);
//	        renderer.setXAxisMax(20.5);
//	        renderer.setYAxisMin(0);
//	        renderer.setYAxisMax(210);
//	      }

	    public static XYMultipleSeriesDataset getBarDemoDataset() {
	        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
//	        final int nr = 10;
	        final int dataSet_Renderer = 1;
//	        Random r = new Random();
	        Integer[] point_to_plot = new Integer[]{100,2,3,4,5,6,7,8,9,10,34,56,32,98,54,78,12,34,23,1};
	        for (int i = 0; i < dataSet_Renderer; i++) {
	          CategorySeries series = new CategorySeries("Demo series " + (i + 1));
	          for (int position = 0; position < point_to_plot.length; position++) {

//	        	  100 + r.nextInt() % 100;
	        	  series.add(point_to_plot[position]);
	          }
	          dataset.addSeries(series.toXYSeries());
	        }
	        return dataset;
	      }
}


Line_Chart.java

public class Line_Chart {

	 public static XYMultipleSeriesDataset getLineDemoDataset() {
		    XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
		    final int dataSet_Renderer = 1;
		    Integer[] point_to_plot = new Integer[]{100,2,3,4,5,6,7,8,9,10,34,56,32,98,54,78,12,34,23,1};
		    for (int i = 0; i < dataSet_Renderer; i++) {
		      XYSeries series = new XYSeries("Demo series " + (i + 1));
		      for (int k = 0; k < point_to_plot.length; k++) {

		        series.add(k, point_to_plot[k]);
		      }
		      dataset.addSeries(series);
		    }
		    return dataset;
		  }

	 public static XYMultipleSeriesRenderer getLineDemoRenderer() {
		    XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();

//		    renderer.setChartTitle("Chart demo");
//	        renderer.setXTitle("x values");
//	        renderer.setYTitle("y values");
//	        renderer.setXAxisMin(0.5);
//	        renderer.setXAxisMax(20.5);
//	        renderer.setYAxisMin(0);
//	        renderer.setYAxisMax(210);

//		    renderer.setZoomButtonsVisible(true);

		    renderer.setAxisTitleTextSize(16);
		    renderer.setChartTitleTextSize(20);
		    renderer.setLabelsTextSize(15);
		    renderer.setLegendTextSize(15);
		    renderer.setPointSize(5f);
		    renderer.setMargins(new int[] {20, 30, 15, 0});

		    XYSeriesRenderer r = new XYSeriesRenderer();

//		    r.setColor(Color.BLUE);
//		    r.setPointStyle(PointStyle.SQUARE);
//		    r.setFillBelowLine(true);
//		    r.setFillBelowLineColor(Color.WHITE);
//		    r.setFillPoints(true);
//		    renderer.addSeriesRenderer(r);

		    r = new XYSeriesRenderer();
		    r.setPointStyle(PointStyle.SQUARE);
		    r.setColor(Color.RED);
		    r.setFillPoints(true);
		    renderer.addSeriesRenderer(r);

		    renderer.setAxesColor(Color.LTGRAY);
		    renderer.setLabelsColor(Color.LTGRAY);
		    return renderer;
		  }
}

AndroidManifest file(Don't forget to include the jar file)

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.bar"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>

    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".BarGraphActivity"
                  android:label="@string/app_name" android:configChanges="keyboardHidden|orientation">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
		<activity android:name="org.achartengine.GraphicalActivity" />
    </application>
</manifest>