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我是安卓新手。如何旋转绘图标签?我能够在轴上旋转标签。我正在使用 chartengine。有人可以帮忙吗?

public class SimpleChartExample extends Activity {

    private GraphicalView mChartView;

    XYMultipleSeriesRenderer renderer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layoutlinechart);

        ...
        ...


        int[] colors = new int[] { Color.BLUE,Color.RED};
        PointStyle[] styles = new PointStyle[] { PointStyle.CIRCLE,PointStyle.CIRCLE};

        renderer = buildRenderer(colors, styles);


        renderer.setXLabels(12);
        renderer.setYLabels(10);
        renderer.setShowGrid(false);
        renderer.setXLabelsAlign(Align.CENTER);
        renderer.setYLabelsAlign(Align.CENTER);
        ...
     }
  }

如上面的代码片段所示,我能够配置图表 X、Y 轴等,我还能够绘制值。但是如何为绘图值设置旋转角度?

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