android - 在 AChartEngine 中单击时突出显示饼图切片

Question

我想在用户单击时突出显示(更改颜色)饼图特定切片。 我可以在示例(下面的代码)中发现可以显示切片的索引和确切的点。但是如何为切片重新着色呢？

mChartView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
          SeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint();
          if (seriesSelection == null) {
            Toast
                .makeText(PieChartBuilder.this, "No chart element was clicked", Toast.LENGTH_SHORT)
                .show();
          } else {
            Toast.makeText(
                PieChartBuilder.this,
                "Chart element data point index " + seriesSelection.getPointIndex()
                    + " was clicked" + " point value=" + seriesSelection.getValue(),
                Toast.LENGTH_SHORT).show();
          }
        }
      });

Answer 1

这将完成您需要的工作:

mRenderer.getSeriesRendererAt(seriesSelection.getPointIndex()).setColor(color);
mChartView.repaint();