double[] values = {500.00, 800.00, 1000.00, 900.00};
double sumVal = values[0] + values[1] + values[2] + values[3];

CategorySeries dataset = buildCategoryDataset("圖文報表", values);

protected CategorySeries buildCategoryDataset(String title, double[] values){
 CategorySeries series = new CategorySeries(title);
 series.add("房租:"+values[0], values[0]/sumVal);
 series.add("伙食費:"+values[1], values[1]/sumVal);
 series.add("生活費:"+values[2], values[2]/sumVal);
 series.add("其它:"+values[3], values[3]/sumVal);
 return series;
}

private DefaultRenderer getPieRenderer(){
 DefaultRenderer renderer = new DefaultRenderer();
 renderer.setZoomButtonsVisible(true);//設置顯示放大放小縮小按鈕
 renderer.setZoomEnabled(true);//設置允許放大放小
 //設置各個類別分別對應的顏色
 SimpleSeriesRenderer yellowRenderer = new SimpleSeriesRenderer();
 yellowRenderer.setColor(Color.YELLOW);
 SimpleSeriesRenderer blueRenderer = new SimpleSeriesRenderer();
 blueRenderer.setColor(Color.BLUE);
 SimpleSeriesRenderer redRenderer = new SimpleSeriesRenderer();
 redRenderer.setColor(Color.RED);
 renderer.addSeriesRenderer(yellowRenderer);
 renderer.addSeriesRenderer(blueRenderer);
 renderer.addSeriesRenderer(redRenderer);

 renderer.setLabelsTextSize(30);//設置坐標字號
 renderer.setLegendTextSize(50);//設置圖例字號
 renderer.setApplyBackgroundColor(true);//設置是否應用背景色
 renderer.setBackgroundColor(Color.BLACK);

 return renderer;
}

int[] colors = {Color.BLUE, Color.GREEN, Color.MAGENTA, Color.RED};

DefaultRenderer renderer = buildCategoryRenderer(colors);

protected DefaultRenderer buildCategoryRenderer(int[] colors){
 DefaultRenderer renderer = new DefaultRenderer();
 renderer.setLegendTextSize(35);//設置左下角標注文字的大小
 renderer.setLabelsTextSize(25);//餅圖上標記文字的字體大小
 renderer.setLabelsColor(Color.BLACK);//餅圖上標記文字的顏色
 renderer.setPanEnabled(false);
 renderer.setDisplayValues(true);//顯示數據


 for(int color : colors){
 SimpleSeriesRenderer r = new SimpleSeriesRenderer();
 r.setColor(color);
 //設置百分比
 r.setChartValuesFormat(NumberFormat.getPercentInstance());
 renderer.addSeriesRenderer(r);
 }
 return renderer;
}

<LinearLayout
 android:id="@+id/ll_expense_piechart"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_centerHorizontal="true"
 android:layout_centerVertical="true"
 android:orientation="vertical">
</LinearLayout>

private LinearLayout ll_expense_piechart;
private GraphicalView graphicalView;
 
private void initPieChart(View v){
 ll_expense_piechart = (LinearLayout) v.findViewById(R.id.ll_expense_piechart);
 ll_expense_piechart.removeAllViews();

 graphicalView = ChartFactory.getPieChartView(getContext()
  ,dataset, renderer);//餅狀圖
 graphicalView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

 ll_expense_piechart.addView(graphicalView);
}