How to remove bottom space in a pie chart?

Question

I am using Pie Chart in my application, Right now Pie Chart is displaying properly ,only issue is getting space at bottom of Pie Chart. Following is code of Pie Chart and output what I want and What I am trying to get.

Using this library for piechart

https://github.com/PhilJay/MPAndroidChart

 PieChart pieChart = (PieChart) view.findViewById(R.id.fragment_chart);
        pieChart.setUsePercentValues(true);
        Display display = getActivity().getWindowManager().getDefaultDisplay();
        int height = display.getHeight();  // deprecated

        int offset = (int)(height * 0.65); /* percent to move */

       /* RelativeLayout.LayoutParams rlParams =
                (RelativeLayout.LayoutParams)pieChart.getLayoutParams();
        rlParams.setMargins(0, 0, 0, -offset);
        pieChart.setLayoutParams(rlParams);*/
        // IMPORTANT: In a PieChart, no values (Entry) should have the same
        // xIndex (even if from different DataSets), since no values can be
        // drawn above each other.
        ArrayList<PieEntry> yvalues = new ArrayList<PieEntry>();
        yvalues.add(new PieEntry(8f, 0));
        yvalues.add(new PieEntry(15f, 1));
        yvalues.add(new PieEntry(12f, 2));


        PieDataSet dataSet = new PieDataSet(yvalues, "Reward Points");

        ArrayList<String> xVals = new ArrayList<String>();

        xVals.add("January");
        xVals.add("February");
        xVals.add("March");
        xVals.add("April");
        xVals.add("May");
        xVals.add("June");

        PieData data = new PieData( dataSet);

        data.setValueFormatter(new PercentFormatter());
        pieChart.setData(data);
        //pieChart.setDescription("This is Pie Chart");

        pieChart.setBackgroundColor(Color.TRANSPARENT);
        pieChart.setHoleColor(Color.WHITE);
        pieChart.setTransparentCircleColor(Color.WHITE);
        pieChart.setTransparentCircleAlpha(0);
        pieChart.setHoleRadius(18f);
        pieChart.setDrawCenterText(true);
        pieChart.isRotationEnabled();
        pieChart.isHighlightPerTapEnabled();
        pieChart.setCenterTextOffset(0f,-20f);
        pieChart.setEntryLabelColor(Color.WHITE);
        pieChart.setEntryLabelTypeface(Typeface.DEFAULT);
        pieChart.setEntryLabelTextSize(16f);
        pieChart.setTransparentCircleRadius(11f);

        pieChart.setDrawHoleEnabled(true);


        pieChart.setMaxAngle(180.0f);
        pieChart.setRotationAngle(180.0f);
        pieChart.setCenterTextSize(30);

        dataSet.setColors(ColorTemplate.VORDIPLOM_COLORS);
        data.setValueTextSize(13f);

        data.setValueTextColor(Color.DKGRAY);
        //pieChart.setOnChartValueSelectedListener(getActivity());

        pieChart.animateY(1400, Easing.EaseInOutQuad);

Expected Output

Getting Output

Answer 1

Use below code.

pieChart.setHoleRadius(64f);//18f
pieChart.setCenterTextSize(10);//30
pieChart.setCenterText("Reward Points: 150");//new line

pieChart.setExtraOffsets(5f,0f,10f,-100f);

Adjust value of bottom offset in setExtraOffsets(in above code value -100f) in order to adjust space.