是否可以标记网格线之间的区域而不是网格线

Question

下面是我的条形图。

我想要实现的是将xLabels定位在网格线之间。 未对齐到X网格线LEFT \ CENTER \ RIGHT。

e.g。标签Mon需要放在第一个条的中间（条形值为20）

这可能使用achart吗？

真的很感激帮助。

这是它的代码：

public class AChartEngingFragment extends Fragment {
    private GraphicalView chartView;

    private String[] weekDays = {"Mon", "Tue", "Wed", "Thu", "Fri", "Sat","Sun"};


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        final View v = inflater.inflate(R.layout.fragment_achart_engine, container, false);
        final Resources resources = getResources();
        LinearLayout linearLayout = (LinearLayout) v.findViewById(R.id.chart);

        chartView = createIntent();

        linearLayout.addView(chartView, new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));


        return v;
    }

    public GraphicalView createIntent() {
        String[] titles = new String[]{"Benchmark line"};
        //List<double []> values = new ArrayList<double []>(); //as y1
        //values.add(new double[] {20.0, 10.0, 30.0, 25.0, 40.0});
        double[] y1 = new double[]{20.0, 10.0, 30.0, 25.0, 40.0, 15.0, 19.2};
        List<double[]> x = new ArrayList<double[]>();
        for (int i = 0; i < titles.length; i++) {
            x.add(new double[]{0, 1, 2, 3, 4, 5, 6});
        }
        /*****************************************/
        List<double[]> lineValues = new ArrayList<double[]>(); //as values
        lineValues.add(new double[]{10, 10, 10, 10, 10, 10, 10, 10, 10});

        int[] colors = new int[]{Color.parseColor("#ea2e49")}; //pink


        XYMultipleSeriesRenderer mRenderer = buildBarRenderer(colors);
        mRenderer.setPointSize(0);
        int length = mRenderer.getSeriesRendererCount();
        for (int i = 0; i < length; i++) {
            XYSeriesRenderer seriesRenderer = (XYSeriesRenderer) mRenderer.getSeriesRendererAt(i);
            seriesRenderer.setDisplayChartValues(false);
            seriesRenderer.setLineWidth(2);
            seriesRenderer.setFillPoints(true);
        }
        mRenderer.setOrientation(XYMultipleSeriesRenderer.Orientation.HORIZONTAL);
        setChartSettings(mRenderer, "Average Customer Waiting Time", "Table Categories", "Minutes", 0, 7.5, 0, 30, Color.BLACK, Color.BLACK);
        mRenderer.setXLabels(0);
        mRenderer.setYLabels(10);
        mRenderer.setShowGrid(true);
        mRenderer.addXTextLabel(1, weekDays[0]);
        mRenderer.addXTextLabel(2, weekDays[1]);
        mRenderer.addXTextLabel(3, weekDays[2]);
        mRenderer.addXTextLabel(4, weekDays[3]);
        mRenderer.addXTextLabel(5, weekDays[4]);
        mRenderer.addXTextLabel(6, weekDays[5]);
        mRenderer.addXTextLabel(7, weekDays[6]);
        mRenderer.setXLabelsPadding(20f);

        mRenderer.setXLabelsAlign(Paint.Align.RIGHT);
        mRenderer.setYLabelsAlign(Paint.Align.RIGHT);

        XYSeries ySeries = new XYSeries("Average Customer Waiting Time");
        ySeries.add(0.5, y1[0]);
        ySeries.add(1.5, y1[1]);
        ySeries.add(2.5, y1[2]);
        ySeries.add(3.5, y1[3]);
        ySeries.add(4.5, y1[4]);
        ySeries.add(5.5, y1[5]);
        ySeries.add(6.5, y1[6]);
        mRenderer.setBarSpacing(0.5);

        XYSeriesRenderer yRenderer = new XYSeriesRenderer();
        yRenderer.setColor(Color.parseColor("#77c4d3")); //light blue

        XYMultipleSeriesDataset dataset = buildBarDataset(titles, x, lineValues);
        dataset.addSeries(0, ySeries);
        mRenderer.addSeriesRenderer(0, yRenderer);
        yRenderer.setDisplayChartValues(true);
        yRenderer.setChartValuesTextSize(20); //text size on each bar

        String[] types = new String[]{BarChart.TYPE, LineChart.TYPE};
        final GraphicalView grfv = ChartFactory.getCombinedXYChartView(getActivity(), dataset, mRenderer, types);
        return grfv;
    }

    protected XYMultipleSeriesRenderer buildBarRenderer(int[] colors) {
        XYMultipleSeriesRenderer mRenderer = new XYMultipleSeriesRenderer();
        PointStyle[] styles = new PointStyle[]{PointStyle.CIRCLE};
        mRenderer.setAxisTitleTextSize(17);
        mRenderer.setChartTitleTextSize(25);
        mRenderer.setLabelsTextSize(15);
        mRenderer.setLegendTextSize(15);
        mRenderer.setBarSpacing(-0.5);
        mRenderer.setPointSize(1f);
        mRenderer.setMarginsColor(Color.parseColor("#EEEDED"));
        mRenderer.setXLabelsColor(Color.BLACK);
        mRenderer.setYLabelsColor(0, Color.BLACK);
        mRenderer.setApplyBackgroundColor(true);

        mRenderer.setBackgroundColor(Color.parseColor("#FBFBFC"));
        int length = colors.length;
        for (int i = 0; i < length; i++) { //build benchmark line
            XYSeriesRenderer r = new XYSeriesRenderer(); //change
            r.setColor(colors[i]);
            r.setPointStyle(styles[i]);
            mRenderer.addSeriesRenderer(r);
        }
        return mRenderer;
    }

    protected void setChartSettings(XYMultipleSeriesRenderer mRenderer, String title, String xTitle, String yTitle, double xMin, double xMax, double yMin, double yMax, int axesColor, int labelsColor) {
        mRenderer.setChartTitle(title);
        mRenderer.setYLabelsAlign(Paint.Align.RIGHT);
        mRenderer.setXTitle(xTitle);
        mRenderer.setYTitle(yTitle);
        mRenderer.setXAxisMin(xMin);
        mRenderer.setXAxisMax(xMax);
        mRenderer.setYAxisMin(yMin);
        mRenderer.setYAxisMax(yMax);
        mRenderer.setMargins(new int[]{10, 65, 10, 15});
        mRenderer.setAxesColor(axesColor);
        mRenderer.setLabelsColor(labelsColor);
        mRenderer.setXLabelsAlign(Paint.Align.RIGHT);
        //mRenderer.setZoomEnabled(false);
        mRenderer.setPanEnabled(false, false);
        mRenderer.setZoomEnabled(false, false);
    }

    protected XYMultipleSeriesDataset buildBarDataset(String[] titles, List<double[]> xValues, List<double[]> yValues) {
        XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
        int length = titles.length;
        for (int i = 0; i < length; i++) {
            XYSeries series = new XYSeries(titles[i], 0);
            double[] xV = xValues.get(i);
            double[] yV = yValues.get(i);
            int seriesLength = xV.length;
            for (int k = 0; k < seriesLength; k++) {
                series.add(xV[k], yV[k]);
            }
            dataset.addSeries(series);
        }
        return dataset;
    }
}

Answer 1

您需要更新

的值

    ySeries.add(1, y1[0]);
    ySeries.add(2, y1[1]);
    ySeries.add(3, y1[2]);
    ySeries.add(4, y1[3]);
    ySeries.add(5, y1[4]);
    ySeries.add(6, y1[5]);
    ySeries.add(7, y1[6]);

更改

    mRenderer.setXLabelsAlign(Paint.Align.CENTER);

你会得到下一个结果