我正在使用MPAndroidChart,我正在尝试使用mpandroidchart lib创建一个看起来像甜甜圈的饼图,但不知怎的,我无法做到这一点.
以下是我的代码 –

ArrayList<Entry> entries = new ArrayList<>();
        entries.add(new Entry((float) 20.0, 0));
        entries.add(new Entry((float) 30.0, 1));

        int colors[] = {Color.parseColor("#DCDEE0"),Color.parseColor("#466A80"),Color.parseColor("#0078CA"),Color.parseColor("#5BC2E7"),Color.parseColor("#99E4FF")};
        PieDataSet dataset = new PieDataSet(entries, "# of Calls");
        dataset.setColors(colors);
        dataset.setSliceSpace(3f);
        ArrayList<String> labels = new ArrayList<String>();
        labels.add("January"); 
        labels.add("February"); 
    /*  labels.add("March"); 
        labels.add("April"); 
        labels.add("May");
        labels.add("June");*/

        PieChart chart1 = new PieChart(this);
        chart1.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.5f));
        chart1.setHoleRadius(60f);
        chart1.setHoleColorTransparent(false);
        chart1.setDrawHoleEnabled(true);
        chart1.setUsePercentValues(true);
        chart1.setHoleColor(Color.WHITE);
        PieChart chart2 = new PieChart(this);
        chart2.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.5f));
        LinearLayout chart = (LinearLayout)findViewById(R.id.chart);
        chart.addView(chart1);
        chart.addView(chart2);

        PieData data = new PieData(labels, dataset);
        chart1.setData(data);
        chart2.setData(data);

我能够绘制饼图,但不能使它看起来像甜甜圈.请参阅附加的屏幕截图.有人可以请帮助.

解决方法:

这是已知问题,已在最新提交中修复.
https://github.com/PhilJay/MPAndroidChart/issues/527

包含修复程序的库的v2.1.0应该在下周内发布！