place a chart in a view

I have a chart that I use to display a graph.

To display the chart I use a jar taken from here:

http://writerbay.wordpress.com/2011/03/12/android-tutorial-displaying-chart-on-android/#comment-54

And the code for it is also similar to that one....and it looks like this:

package com.google.android.chartView;

import com.kidroid.kichart.model.Aitem;    
import com.kidroid.kichart.view.LineView;    
import android.app.Activity;    
import android.graphics.Color;
import android.os.Bundle;

public class chartView extends Activity {
  /** Called when the activity is first created. */
  LineView lv;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    String xaxis[]=new String[4];
    xaxis[0]="2006";
    xaxis[1]="2007";
    xaxis[2]="2008";
    xaxis[3]="2009";
    float line1[]=new float[4];
    line1[0]=120;
    line1[1]=240;
    line1[2]=500;
    line1[3]=100;
    float line2[]=new float[4];
    line2[0]=100;
    line2[1]=650;
    line2[2]=700;
    line2[3]=300;
    float line3[]=new float[4];
    line3[0]=50;
    line3[1]=180;
    line3[2]=360;
    line3[3]=900;
    Aitem items[]=new Aitem[3];
    items[0]= new Aitem(Color.BLUE,"pauOut",line1);
    items[1]= new Aitem(Color.GREEN,"pauOut",line2);
    items[2]= new Aitem(Color.YELLOW,"pauOut",line3);
    lv=new LineView(this);
    lv.setTitle("Yearly Budget");
    lv.setAxisValueX(xaxis);
    lv.setItems(items);
    setContentView(lv);
  }
}

The problem I'm facing is that the chart fills entire my image and when I also wanna place a button on that activity it won't get visible be开发者_如何学Gocause the chart occupies the full screen....

Question: Is someone who could tell me how to place that chart in order for it not to fill my entire screen so I could place button underneath it?? Thx...My app is on android

---

You're calling setContentView on just the layout object you've created. So thats all that will be shown!

Try using an xml file containing a blank linearlayout, and a button setup how you want it, and then in code, ThatLinearLayout.addView(lv);