我正在使用Achartengine库创建默认条形图 . 值未正确显示 . 我想在条形图顶部显示图表值并与中心对齐 . 对我来说，只有第一个栏的值可见，但我想看到两个栏的值 . 我怎样才能做到这一点？我将不胜感激任何帮助 .
这是我的代码
public Intent getIntent(Context context)
{
// Bar 1
int[] y = { 124, 135, 443, 456, 234, 123, 342, 134, 123, 643, 234, 274 };
CategorySeries series = new CategorySeries("Demo Bar Graph 1");
for (int i = 0; i < y.length; i++) {
series.add("Bar " + (i+1), y[i]);
}
// Bar 2
int[] y2 = { 124, 135, 243, 256, 234, 223, 242, 234, 223, 243, 234, 274 };
CategorySeries series2 = new CategorySeries("Demo Bar Graph 2");
for (int i = 0; i < y.length; i++) {
series2.add("Bar " + (i+1), y2[i]);
}
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
dataset.addSeries(series.toXYSeries());
dataset.addSeries(series2.toXYSeries());
// This is how the "Graph" itself will look like
XYMultipleSeriesRenderer mRenderer = new XYMultipleSeriesRenderer();
mRenderer.setChartTitle("Demo Graph Title");
mRenderer.setXTitle("X VALUES");
mRenderer.setYTitle("Y VALUES");
mRenderer.setAxesColor(Color.GREEN);
mRenderer.setLabelsColor(Color.RED);
mRenderer.setBarSpacing(2.0f);
// Customize bar 1
XYSeriesRenderer renderer = new XYSeriesRenderer();
renderer.setColor(Color.RED);
renderer.setDisplayChartValues(true);
renderer.setChartValuesSpacing((float) 2.5);
mRenderer.addSeriesRenderer(renderer);
// Customize bar 2
XYSeriesRenderer renderer2 = new XYSeriesRenderer();
renderer.setColor(Color.GREEN);
renderer.setDisplayChartValues(true);
renderer.setChartValuesSpacing((float) 2.5);
mRenderer.addSeriesRenderer(renderer2);
Intent intent = ChartFactory.getBarChartIntent(context, dataset,mRenderer, Type.DEFAULT);
return intent;
}
1 回答
您正在实例化
renderer和renderer2，但您正在调用renderer.setDisplayChartValues(true)两次并且从不调用renderer2.setDisplayChartValue(true);