ACharEnginer使用

1，新建项目
2，添加libs文件夹，将achartengine-1.1.0.jar放置到libs下，
3，使用jar完成项目。

饼图使用为例：

package com.lwj.myachartenginertest;

import org.achartengine.ChartFactory;
import org.achartengine.model.CategorySeries;
import org.achartengine.renderer.DefaultRenderer;
import org.achartengine.renderer.SimpleSeriesRenderer;

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

public class MainActivity extends Activity {
     @Override
     public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            double[] values = new double[] { 12, 14, 11, 10, 19 };
     int[] colors = new int[] { Color.BLUE, Color.GREEN, Color.MAGENTA, Color.WHITE, Color.CYAN };
            DefaultRenderer renderer = buildCategoryRenderer(colors);//取得渲染器，并设置好颜色
            renderer.setZoomButtonsVisible(true);//缩放控件
            renderer.setZoomEnabled(true);//可缩放
            renderer.setChartTitleTextSize(20);//
            //生成饼图
            View view = ChartFactory.getPieChartView(this, buildCategoryDataset("Project budget", values), renderer);
            view.setBackgroundColor(Color.YELLOW);//背景颜色
            setContentView(view);
        }

        protected DefaultRenderer buildCategoryRenderer(int[] colors) {
            DefaultRenderer renderer = new DefaultRenderer();
            renderer.setLabelsTextSize(15);
            renderer.setLegendTextSize(15);
            renderer.setMargins(new int[] { 20, 30, 15, 0 });
     for (int color : colors) {
                SimpleSeriesRenderer r = new SimpleSeriesRenderer();
                r.setColor(color);
                renderer.addSeriesRenderer(r);
            }
            return renderer;
        }

        protected CategorySeries buildCategoryDataset(String title, double[] values) {
            CategorySeries series = new CategorySeries(title);
     int k = 0;
     for (double value : values) {
                series.add("Project " + ++k + " (" + value + ")", value);
            }
            return series;
        }
}