與x軸的日期

Question

在這裏，我試圖表現出與x軸的日期，其中值從網絡服務器檢索圖表的Android圖：

// Our first data 

Date[] x = dates_array; // x values! 

double[] y = readings_array; // y values! 



       XYMultipleSeriesRenderer mRenderer = new XYMultipleSeriesRenderer(); // Holds a collection of XYSeriesRenderer and customizes the graph 
       XYSeriesRenderer renderer = new XYSeriesRenderer(); // This will be used to customize line 1 
       XYSeriesRenderer renderer2 = new XYSeriesRenderer(); // This will be used to customize line 2 
       mRenderer.addSeriesRenderer(renderer); 
       mRenderer.addSeriesRenderer(renderer2); 
       TimeSeries series = new TimeSeries("peak flow"); 
       for(int i = 0; i < x.length; i++) 
       { 
        series.add(x[i], y[i]); 
       } 

       // Our second data 
      int[] x2 = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; // x values! 




       int[] y2 = { 145, 123, 111, 100, 89, 77, 57, 45, 34, 30}; // y values! 
       TimeSeries series2 = new TimeSeries("Line2"); 
       for(int i = 0; i < x2.length; i++) 
       { 
        series2.add(x2[i], y2[i]); 

       } 

       XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset(); 
       dataset.addSeries(series); 
       dataset.addSeries(series2); 



       // Customization time for line 1! 
       renderer.setColor(Color.WHITE); 
       renderer.setPointStyle(PointStyle.SQUARE); 
       renderer.setFillPoints(true); 
       // Customization time for line 2! 
       renderer2.setColor(Color.YELLOW); 
       renderer2.setPointStyle(PointStyle.DIAMOND); 
       renderer2.setFillPoints(true); 



       Intent intent = ChartFactory.getTimeChartIntent(getApplicationContext(), dataset, 
        mRenderer, "DD MMM yyyy"); 
       startActivity(intent); 
      } 
     }); 

它正常工作與Y-但在x軸上顯示的值是隨機值，不是我的值！ 請幫忙嗎？

Answer 1

在TimeSeries你應該使用add(Date x, double y)方法，而不是add(double x, double y)之一。

如果你想在X軸標籤必須準確數據的日期，然後這樣做：

renderer.setXRoundedLabels(false);