如何在graphview中設置X軸上的固定水平標簽（Android Studio）

Question

我正在使用GraphView庫，我想在X軸上顯示一年中的幾個月。 我的問題是標簽在“縱向”模式下重疊。 它在“風景”模式下看起來更好，盡管也是重疊標簽。

這就是我的圖表在“肖像”模式下的樣子：

這就是我的圖表在“橫向”模式下的表現（更好）：

當我嘗試制作更短的標簽（jan，feb，mar，apr等等）或更小的字體大小時，它會變得更糟（它看起來會產生更多的垂直線條）：

那是我的代碼：

   GraphView graph_LastYear = (GraphView) findViewById(R.id.graph_yearly);
    GraphView graph_Last3Months = (GraphView) findViewById(R.id.graph_last3month);

    LineGraphSeries<DataPoint> series = new LineGraphSeries<DataPoint>(new DataPoint[]{

            new DataPoint(1, Sallries_WholeYear.get(0).getNetoPayment()),
            new DataPoint(2, Sallries_WholeYear.get(1).getNetoPayment()),
            new DataPoint(3, Sallries_WholeYear.get(2).getNetoPayment()),
            new DataPoint(4, Sallries_WholeYear.get(3).getNetoPayment()),
            new DataPoint(5, Sallries_WholeYear.get(4).getNetoPayment()),
            new DataPoint(6, Sallries_WholeYear.get(5).getNetoPayment()),
            new DataPoint(7, Sallries_WholeYear.get(6).getNetoPayment()),
            new DataPoint(8, Sallries_WholeYear.get(7).getNetoPayment()),
            new DataPoint(9, Sallries_WholeYear.get(8).getNetoPayment()),
            new DataPoint(10, Sallries_WholeYear.get(9).getNetoPayment()),
            new DataPoint(11, Sallries_WholeYear.get(10).getNetoPayment()),
            new DataPoint(12, Sallries_WholeYear.get(11).getNetoPayment())
    }
    );



    series.setDrawDataPoints(true);
    series.setColor(Color.BLACK);
    series.setDrawDataPoints(true);
    series.setDataPointsRadius(10);
    series.setThickness(8);

    graph_LastYear.addSeries(series);
    graph_LastYear.setTitle("Last Year");
    graph_LastYear.setTitleTextSize(60);

    graph_LastYear.getViewport().setScalable(true);
    graph_LastYear.getViewport().setScrollable(true);



    graph_LastYear.getGridLabelRenderer().setTextSize(40);
    graph_LastYear.getGridLabelRenderer().setNumHorizontalLabels(12);
    graph_LastYear.getGridLabelRenderer().setGridColor(Color.BLUE);


    StaticLabelsFormatter staticLabelsFormatter = new StaticLabelsFormatter(graph_LastYear);
    staticLabelsFormatter.setHorizontalLabels(new String[]{getString(R.string.Janury_Month), getString(R.string.February_Month), getString(R.string.March_Month), getString(R.string.April_Month), getString(R.string.My_Month), getString(R.string.June_Month), getString(R.string.July_Month), getString(R.string.August_Month),
            getString(R.string.September_Month), getString(R.string.October_Month), getString(R.string.November_Month), getString(R.string.December_Month)});
    graph_LastYear.getGridLabelRenderer().setLabelFormatter(staticLabelsFormatter);

謝謝您的幫助 ！

Answer 1

您可以使用以下方法垂直旋轉標簽：

GridLabelRenderer renderer = graphView.getGridLabelRenderer();
renderer.setHorizontalLabelsAngle(90);

或者，如果使用foll，x軸的值不是太大，則使一些標簽不可見

GridLabelRenderer gridLabel = graphView.getGridLabelRenderer();
gridLabel.setLabelFormatter(new DefaultLabelFormatter(){
            @Override
            public String formatLabel(double value, boolean isValueX) {
                if (isValueX) {
                    // return as Integer
                    if (value % Commons.getDivisier(finalCategoryArray.length) == 0){
                        return ""+ finalCategoryArray[((int) value)];
                    }else {
                        return null;
                    }

                } else {
                    // show currency for y values
                    return super.formatLabel(value, isValueX);
                }
            }
        });

public static double getDivisier(int length) {
        if (length < 5){
                return 1;
        }else if (length < 10){
            return 2;
        }else if (length < 50){
            return 5;
        }else if (length < 100){
            return 10;
        }
        return 1;
    }