android中表格绘图

android中表格绘图

 public class AverageTemperatureChart extends AbstractDemoChart {

public String getName() {

return "Average temperature";

}

public String getDesc() {

return "The average temperature in 4 Greek islands (line chart)";

}

/**

 * Executes the chart demo.

 * 

 * @param context

 *            the context

 * @return the built intent

 */

public Intent execute(Context context) {

// 每个item的title

String[] titles = new String[] { "Crete", "Corfu", "Thassos",

"Skiathos" };

// x轴的值

List<double[]> x = new ArrayList<double[]>();

for (int i = 0; i < titles.length; i++) {

x.add(new double[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 });

}

// y轴的值

List<double[]> values = new ArrayList<double[]>();

values.add(new double[] { 12.3, 12.5, 13.8, 16.8, 20.4, 24.4, 26.4,

26.1, 23.6, 20.3, 17.2, 13.9 });

values.add(new double[] { 10, 10, 12, 15, 20, 24, 26, 26, 23, 18, 14,

11 });

values.add(new double[] { 5, 5.3, 8, 12, 17, 22, 24.2, 24, 19, 15, 9, 6 });

values.add(new double[] { 9, 10, 11, 15, 19, 23, 26, 25, 22, 18, 13, 10 });

int[] colors = new int[] { Color.BLUE, Color.GREEN, Color.CYAN,

Color.YELLOW };

// 点的样式

PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE,

PointStyle.DIAMOND, PointStyle.TRIANGLE, PointStyle.SQUARE };

XYMultipleSeriesRenderer renderer = buildRenderer(colors, styles);

int length = renderer.getSeriesRendererCount();

// 点是空心还是实心

for (int i = 0; i < length; i++) {

((XYSeriesRenderer) renderer.getSeriesRendererAt(i))

.setFillPoints(true);

}

// 图表部分的背景颜色

renderer.setBackgroundColor(Color.parseColor("#f3f3f3"));

renderer.setApplyBackgroundColor(true);

// 图表与屏幕四边的间距颜色

renderer.setMarginsColor(Color.argb(0, 0xF3, 0xF3, 0xF3));

renderer.setChartTitleTextSize(30);

renderer.setAxisTitleTextSize(25);

// renderer.setLegendHeight(50);

// 图例文字的大小

renderer.setLegendTextSize(20);

renderer.setMargins(new int[] { 50, 50, 50, 30 });

// x、y轴上刻度颜色

renderer.setXLabelsColor(Color.BLACK);

renderer.setYLabelsColor(0, Color.BLACK);

// 最后两个参数代表轴的颜色和轴标签的颜色

setChartSettings(renderer, "Average temperature", "Month",

"Temperature", 0.5, 12.5, -10, 40, Color.BLACK, Color.BLACK);

// 轴上数字的数量

renderer.setXLabels(12);

renderer.setYLabels(10);

// 是否显示网格

renderer.setShowGrid(true);

// x或y轴上数字的方向，相反的。

renderer.setXLabelsAlign(Align.RIGHT);

renderer.setYLabelsAlign(Align.RIGHT);

// 有问题的方法

// renderer.setZoomButtonsVisible(true);

// renderer.setPanLimits(new double[] { -10, 20, -10, 40 });

// renderer.setZoomLimits(new double[] { -10, 20, -10, 40 });

Intent intent = ChartFactory.getLineChartIntent(context,

buildDataset(titles, x, values), renderer,

"Average temperature");

return intent;

}

}