棒グラフ：XYBarRenderer :AFreeChart

	package com.example.afreechart;
	import org.afree.chart.AFreeChart;
	import org.afree.chart.axis.NumberAxis;
	import org.afree.chart.plot.XYPlot;
	import org.afree.chart.renderer.xy.XYBarRenderer;
	import org.afree.data.xy.XYSeries;
	import org.afree.data.xy.XYSeriesCollection;
	import android.os.Bundle;
	import android.app.Activity;
	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);
	// X軸の定義
	NumberAxis domainAxis = new NumberAxis("X軸");
	// Y軸の定義
	NumberAxis rangeAxis = new NumberAxis("Y軸");
	// 折れ線の定義
	//XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();
	XYBarRenderer renderer = new XYBarRenderer();
	XYPlot plot = new XYPlot(dataset, domainAxis, rangeAxis, renderer);
	AFreeChart chart = new AFreeChart(plot);
	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

	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);
	}
	@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

	<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