AFreeChartでグラフ作成

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <com.example.afreechart.GraphView
        android:id="@+id/graphView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

GraphView.java

package com.example.afreechart;

import org.afree.chart.AFreeChart;
import org.afree.graphics.geom.RectShape;

import android.content.Context;
import android.graphics.Canvas;
import android.util.AttributeSet;
import android.view.View;

public class GraphView extends View {

	private AFreeChart chart;
	private RectShape chartArea;

	public GraphView(Context context, AttributeSet attrs) {
		super(context, attrs);
		// TODO Auto-generated constructor stub
		chartArea = new RectShape(); 
	}

	@Override
	protected void onSizeChanged(int w, int h, int oldw, int oldh) {
		super.onSizeChanged(w, h, oldw, oldh);
		chartArea.setWidth(w);
		chartArea.setHeight(h/2);
	}

	@Override
	protected void onDraw(Canvas canvas) {
		super.onDraw(canvas);
		this.chart.draw(canvas, chartArea);
	}

	public void setChart(AFreeChart chart) {
		this.chart = chart;
	}
}

MainActivity.java

package com.example.afreechart;

import org.afree.chart.AFreeChart;
import org.afree.chart.ChartFactory;
import org.afree.chart.plot.PlotOrientation;
import org.afree.data.xy.XYSeries;
import org.afree.data.xy.XYSeriesCollection;
import org.afree.graphics.SolidColor;

import android.os.Bundle;
import android.app.Activity;
import android.graphics.Color;
import android.view.Menu;

public class MainActivity extends Activity {

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

		XYSeriesCollection dataset = new XYSeriesCollection();
		XYSeries series = new XYSeries("XYSeries");
		series.add(1, 1);
		series.add(2, 2);
		series.add(3, 3);
		series.add(4, 4);
		series.add(5, 5);
		series.add(6, 6);
		series.add(7, 7);
		dataset.addSeries(series);

		AFreeChart chart = ChartFactory.createXYLineChart("タイトル", "X軸ラベル",
				"ｙ軸ラベル", dataset, PlotOrientation.VERTICAL, false, true, false); 

		chart.setBackgroundPaintType(new SolidColor(Color.GRAY));//背景の色
		chart.setBorderPaintType(new SolidColor(Color.BLACK));//枠線の色

		GraphView spcv = (GraphView) findViewById(R.id.graphView1);
		spcv.setChart(chart);

	}


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

}