Android之关于图表

首先需要下载Jar包：图表jar.rar

线性图：

public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        // 1, 构造显示用渲染图XY        XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();        // 2,进行显示        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();        // 2.1, 构建数据        Random r = new Random();        for (int i = 0; i < 2; i++) {            // 创建代表哪一条线的标题，这里是画两条            XYSeries series = new XYSeries("test" + (i + 1));            // 填充数据,一条标题10个点            for (int k = 0; k < 10; k++) {                // 填x,y值                series.add(k, 20 + r.nextInt() % 100);            }            // 需要绘制的点放进dataset中            dataset.addSeries(series);        }        // 3, 对点的绘制进行设置        XYSeriesRenderer xyRenderer = new XYSeriesRenderer();        // 3.1设置颜色        xyRenderer.setColor(Color.BLUE);        // 3.2设置点的样式        xyRenderer.setPointStyle(PointStyle.SQUARE);        // 3.3, 将要绘制的点添加到坐标绘制中        renderer.addSeriesRenderer(xyRenderer);                // 3.4,重复 1~3的步骤绘制第二个系列点        xyRenderer = new XYSeriesRenderer();        xyRenderer.setColor(Color.RED);        xyRenderer.setPointStyle(PointStyle.CIRCLE);        renderer.addSeriesRenderer(xyRenderer);        // Intent intent = new LinChart().execute(this);        // 打开画图的Activity,需要在manifest中设置 <activity android:name="org.achartengine.GraphicalActivity" />        Intent intent = ChartFactory                .getLineChartIntent(this, dataset, renderer);        startActivity(intent);    }}

柱状图：

// 柱状图        XYMultipleSeriesRenderer renderer = getBarDemoRenderer();        Intent intent = ChartFactory.getBarChartIntent(this,                getBarDemoDataset(), renderer, Type.DEFAULT);        startActivity(intent);//设置柱状图的Series    private XYMultipleSeriesDataset getBarDemoDataset() {        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();        final int nr = 10;        Random r = new Random();        // 一共是3种不同的柱状图        for (int i = 0; i < SERIES_NR; i++) {            CategorySeries series = new CategorySeries("Demo series " + (i + 1));            // 设置每个的高度            for (int k = 0; k < nr; k++) {                series.add(100 + r.nextInt() % 100);            }            dataset.addSeries(series.toXYSeries());        }        return dataset;    }    //设置柱状图的Renderer,设置颜色    public XYMultipleSeriesRenderer getBarDemoRenderer() {        XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();        SimpleSeriesRenderer r = new SimpleSeriesRenderer();        r.setColor(Color.BLUE);        renderer.addSeriesRenderer(r);        r = new SimpleSeriesRenderer();        r.setColor(Color.GREEN);        renderer.addSeriesRenderer(r);        r = new SimpleSeriesRenderer();        r.setColor(Color.WHITE);        renderer.addSeriesRenderer(r);        setChartSettings(renderer);        return renderer;    }    //设置柱状图Renderer的属性    private void setChartSettings(XYMultipleSeriesRenderer renderer) {        renderer.setChartTitle("Chart demo");        renderer.setXTitle("x values");        renderer.setYTitle("y values");        renderer.setXAxisMin(0);// 设置X轴的最小值为0.5        renderer.setXAxisMax(10.5);// 设置X轴的最大值为10.5        renderer.setYAxisMin(0);// 设置Y轴的最小值为0        renderer.setYAxisMax(210);// 设置Y轴最大值为210        renderer.setDisplayChartValues(true); // 设置是否在柱体上方显示值        renderer.setShowGrid(true);// 设置是否在图表中显示网格        renderer.setXLabels(0);// 设置X轴显示的刻度标签的个数        for (int i = 1; i < 11; i++) {            // 设置x轴刻度的值            renderer.addTextLabel(i, "" + i);        }    }

饼状图：

// 饼状图            Intent intent = execute(MainActivity.this);            startActivity(intent);//设置饼状图    public Intent execute(Context context) {        double[] values = new double[] { 12, 14, 11, 10, 19 };        int[] colors = new int[] { Color.BLUE, Color.GREEN, Color.MAGENTA,                Color.YELLOW, Color.CYAN };        DefaultRenderer renderer = buildCategoryRenderer(colors);        renderer.setZoomButtonsVisible(true);        renderer.setZoomEnabled(true);        // 设置饼状图的title字体大小        renderer.setChartTitleTextSize(20);        // 设置饼状图的title        renderer.setChartTitle("这是一个饼状图");        return ChartFactory.getPieChartIntent(context,                buildCategoryDataset("Project budget", values), renderer,                "Budget");    }    //设置饼状图的Renderer    protected DefaultRenderer buildCategoryRenderer(int[] colors) {        DefaultRenderer renderer = new DefaultRenderer();        renderer.setLabelsTextSize(15);        renderer.setLegendTextSize(15);        renderer.setMargins(new int[] { 20, 30, 15, 0 });        // 设置颜色        for (int color : colors) {            SimpleSeriesRenderer r = new SimpleSeriesRenderer();            r.setColor(color);            renderer.addSeriesRenderer(r);        }        return renderer;    }    //设置饼状图的Series    protected CategorySeries buildCategoryDataset(String title, double[] values) {        CategorySeries series = new CategorySeries(title);        int k = 0;        // 设置每份的大小        for (double value : values) {            series.add("Project " + ++k, value);        }        return series;    }

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