突出饼图切片当AChartEngine点击了 [英] Highlighting Pie Chart Slice When Clicked in AChartEngine

问题描述

我想，当用户点击以突出饼图特定切片（变色）。
我可以在样品中找到（在$ C $下面三），这是可能的，显示切片的索引和确切点。但对重新着色的切片什么？

  mChartView.setOnClickListener（新View.OnClickListener（）{
        @覆盖
        公共无效的onClick（视图v）{
          SeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint（）;
          如果（seriesSelection == NULL）{
            烤面包
                .makeText（PieChartBuilder.this，无图表元素被点击了，Toast.LENGTH_SHORT）
                。显示（）;
          }其他{
            Toast.makeText（
                PieChartBuilder.this，
                图表元素数据点指数+ seriesSelection.getPointIndex（）
                    +被点击+点值=+ seriesSelection.getValue（）
                Toast.LENGTH_SHORT）.show（）;
          }
        }
      }）;
 

解决方案

这会做你需要的东西：

  mRenderer.getSeriesRendererAt（seriesSelection.getPointIndex（））的setColor（彩色）。
mChartView.repaint（）;
 

I want to highlight (change color) of a pie graph specific slice when clicked by the user. I can find in the samples (the code below) that it is possible to show the index of the slice and the exact point. but what about recoloring the slice ?

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();
          }
        }
      });

解决方案

This will do the stuff you need:

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

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