AFreeChartでグラフ作成 :AFreeChart

1.ライブラリ：afreechart-0.0.4.jar　をダウンロードして、libs フォルダに入れる。
2.view を作成する。
3.データを入れる。

	<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>

view raw activity_main.xml hosted with ❤ by GitHub

	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;
	}
	}

view raw GraphView.java hosted with ❤ by GitHub

	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;
	}
	}

view raw MainActivity.java hosted with ❤ by GitHub