1：首先下载Achartengine包，然后倒入项目中
2：代码如下：
public class Main extends Activity {
/** Called when the activity is first created. */
PieChart pc;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String[] titles = new String[] { "First", "Second"};
List x = new ArrayList();
List y = new ArrayList();
x.add(new double[] { 1, 3, 5, 7, 9, 11} );
x.add(new double[] { 0, 2, 4, 6, 8, 10} );
y.add(new double[] { 3, 14, 5, 30, 20, 25});
y.add(new double[] { 18, 9, 21, 15, 10, 6});
XYMultipleSeriesDataset dataset = buildDataset(titles, x, y);
int[] colors = new int[] { Color.BLUE, Color.GREEN};
PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE, PointStyle.TRIANGLE};
XYMultipleSeriesRenderer renderer = buildRenderer(colors, styles, false);
setChartSettings(renderer, "Line Chart Demo", "X", "Y", -1, 12, 0, 35 , Color.WHITE, Color.WHITE);
View chart = ChartFactory.getLineChartView(this, dataset, renderer); //线图
double[] values = new double[] { 12, 14, 11, 10, 19 };
int[] color = new int[] { Color.BLUE, Color.GREEN, Color.MAGENTA, Color.YELLOW, Color.CYAN };
DefaultRenderer defaultRenderer =buildCategoryRenderer(color);
CategorySeries categorySeries =buildCategoryDataset("圆", values);
View pie =ChartFactory.getPieChartView(this, categorySeries, defaultRenderer); //饼图
setContentView(pie);
}
protected DefaultRenderer buildCategoryRenderer(int[] colors) {
DefaultRenderer renderer = new DefaultRenderer();
renderer.setLabelsTextSize(15);
renderer.setLegendTextSize(15);
renderer.setMargins(new int[] { 20, 30, 15, 10 });
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);
}
return series;
}
protected XYMultipleSeriesDataset buildDataset(String[] titles,
List xValues,
List yValues)
{
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
int length = titles.length; //有几条线
for (int i = 0; i < length; i++)
{
XYSeries series = new XYSeries(titles[i]); //根据每条线的名称创建
double[] xV = (double[]) xValues.get(i); //获取第i条线的数据
double[] yV = (double[]) yValues.get(i);
int seriesLength = xV.length; //有几个点
for (int k = 0; k < seriesLength; k++) //每条线里有几个点
{
series.add(xV[k], yV[k]);
}
dataset.addSeries(series);
}
return dataset;
}
protected XYMultipleSeriesRenderer buildRenderer(int[] colors, PointStyle[] styles, boolean fill)
{
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
int length = colors.length;
for (int i = 0; i < length; i++)
{
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(colors[i]);
r.setLineWidth(3);
r.setPointStyle(styles[i]);
r.setFillPoints(fill);
renderer.addSeriesRenderer(r);
}
return renderer;
}
protected void setChartSettings(XYMultipleSeriesRenderer renderer, String title,
String xTitle,String yTitle, double xMin,
double xMax, double yMin, double yMax,
int axesColor,int labelsColor)
{
renderer.setChartTitle(title);
renderer.setXTitle(xTitle);
renderer.setYTitle(yTitle);
renderer.setXAxisMin(xMin);
renderer.setXAxisMax(xMax);
renderer.setYAxisMin(yMin);
renderer.setYAxisMax(yMax);
renderer.setAxesColor(axesColor);
renderer.setLabelsColor(labelsColor);
}
}
