achartengine

package com.example.han.graph2;
import android.content.Intent;import android.graphics.Color;import android.os.Bundle;import android.support.v7.app.ActionBarActivity;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.LinearLayout;import android.widget.ViewFlipper;
import org.achartengine.ChartFactory;import org.achartengine.GraphicalView;import org.achartengine.model.CategorySeries;import org.achartengine.renderer.DefaultRenderer;import org.achartengine.renderer.SimpleSeriesRenderer;

public class MainActivity extends ActionBarActivity {

    ViewFlipper vFlipper;


    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        vFlipper = (ViewFlipper) findViewById(R.id.viewFlipper);
        LinearLayout layout = (LinearLayout) findViewById(R.id.layout);
        CategorySeries series = new CategorySeries(null);
        DefaultRenderer renderer = new DefaultRenderer();
        int[] colors = new int[] { Color.BLUE, Color.GREEN, Color.MAGENTA,
                Color.YELLOW, Color.CYAN, Color.RED };

        series.add("Cupcake", new Integer(40));
        series.add("Donut", new Integer(5));
        series.add("Eclair", new Integer(10));
        series.add("Froyo", new Integer(25));
        series.add("Gingerbread", new Integer(20));
        series.add("Honeycomb", new Integer(50));

        renderer.setLabelsTextSize(15); 

        renderer.setShowLabels(false); 

        renderer.setLegendTextSize(24);

        renderer.setShowLegend(false); 

        for (int color : colors) {
            SimpleSeriesRenderer r = new SimpleSeriesRenderer();
            r.setColor(color);
            renderer.addSeriesRenderer(r);
        }

        GraphicalView pie_chart = ChartFactory.getPieChartView(this, series, renderer);
        layout.addView(pie_chart);
    }



    public void btnPrev (View v){
        vFlipper.showPrevious();
    }

    public void btnNext (View v){
       vFlipper.showNext();
    }



    public void lineGraphHander (View v){
        LineGraph line = new LineGraph();
        Intent lineIntent = line.getIntent(this);
        startActivity(lineIntent);

            }

    @Override    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest.xml.        int id = item.getItemId();

        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}