組合圖實時圖

Question

我有一個小問題，實時組合圖由MPAndroidChart。我有兩個不同的圖表，它在兩個單獨的圖表中工作，但我想合併爲一個。主要的問題是，當傳入值時圖中沒有任何內容。我明白了，參考文件沒問題。

這裏是我的代碼：

private void IntialcombinedChart(){ 
    mChart = (CombinedChart) findViewById(R.id.chartFetalandToco); 

    mChart.setDescription(""); 
    mChart.setNoDataText("No data yet"); 
    mChart.setDrawGridBackground(false); 

    mChart.setTouchEnabled(true); 
    mChart.setDragEnabled(true); 
    mChart.setScaleEnabled(true); 
    mChart.setDrawGridBackground(false); 

    mChart.setVisibleXRangeMaximum((float)10); 

    XAxis x1 = mChart.getXAxis(); 
    x1.setDrawGridLines(false); 
    x1.setAxisMaxValue(1200); 
    x1.setAvoidFirstLastClipping(true); 

    YAxis y1 = mChart.getAxisLeft(); 
    y1.setAxisMaxValue(255); 
    y1.setAxisMinValue(0); 
    y1.setDrawGridLines(true); 


    YAxis y12 = mChart.getAxisRight(); 
    y12.setEnabled(false); 


    cData = new CombinedData(); 

    cData.setData(new LineData()); 
    cData.setData(new ScatterData()); 
    mChart.setData(cData); 
    mChart.invalidate(); 
} 



public ScatterDataSet createFetalSet(){ 
    ScatterDataSet set = new ScatterDataSet(null,"Fetal"); 
    set.setScatterShapeSize(7.5f); 
    set.setDrawValues(false); 
    set.setValueTextSize(10f); 
    set.setDrawValues(false); 
    set.setColor(ColorTemplate.COLORFUL_COLORS[2]); 
    set.setAxisDependency(YAxis.AxisDependency.LEFT); 
    return set; 
} 
private LineDataSet createTocoSet(){ 
    LineDataSet set = new LineDataSet(null,"Toco"); 
    set.setDrawCircles(false); 
    set.setDrawCubic(true); 
    set.setDrawValues(false); 
    set.setColor(ColorTemplate.COLORFUL_COLORS[3]); 
    set.setAxisDependency(YAxis.AxisDependency.LEFT); 
    return set; 


} 

public void AddFetalEntry(float sinValue){ 
    CombinedData data = mChart.getData(); 
    if (data != null) { 
     LineDataSet dataSetGraphA = (LineDataSet) data.getDataSetByIndex(0); 
     ScatterDataSet dataSetGraphB = (ScatterDataSet) data.getDataSetByIndex(1); 

     if (dataSetGraphA == null) { 
      dataSetGraphA = createTocoSet(); 
      data.addDataSet(dataSetGraphA); 
     } 
     if (dataSetGraphB == null) { 
      dataSetGraphB = createFetalSet(); 
      data.addDataSet(dataSetGraphB); 
     } 

     data.addXValue(""); 

     data.addEntry(new Entry(sinValue, dataSetGraphA.getEntryCount()), 0); 

     data.addEntry(new Entry(sinValue, dataSetGraphB.getEntryCount()), 1); 

     data.notifyDataChanged(); 


     // let the chart know it's data has changed 
     mChart.notifyDataSetChanged(); 
     mChart.invalidate(); // refresh 

     mChart.setVisibleXRangeMaximum(2000); 

     //int valueCount = data.getXValCount(); 
     mChart.moveViewToX(data.getXValCount() - 2000); 


    } 
} 

我覺得我寫了一個良好的代碼，但它不工作。我嘗試了很多方法來解決這個問題，但我不能。當圖表上出現相同的值時，我會很高興。

我希望有人可以幫助我。

Answer 1

因此，我花了更多時間瞭解mpandroid圖表系統。首先，我創建了一個帶有數據集的空散點數據和一個帶linedataset的空數據線。之後，我必須以組合數據的形式查找這些chartdatas，我從組合圖表中得到了什麼。

這裏是我的代碼：

private void IntialcombinedChart(){ 
    mChart = (CombinedChart) findViewById(R.id.chartFetalandToco); 

    mChart.setDescription(""); 
    mChart.setNoDataText("No data yet"); 
    mChart.setDrawGridBackground(false); 
    mChart.setTouchEnabled(true); 
    mChart.setDragEnabled(true); 
    mChart.setScaleEnabled(true); 
    mChart.setDrawGridBackground(false); 
    mChart.setVisibleXRangeMaximum((float)10); 

    XAxis x1 = mChart.getXAxis(); 
    x1.setDrawGridLines(false); 
    x1.setAxisMaxValue(1200); 
    x1.setAvoidFirstLastClipping(true); 


    YAxis y1 = mChart.getAxisLeft(); 
    y1.setAxisMaxValue(255); 
    y1.setAxisMinValue(0); 
    y1.setDrawGridLines(true); 


    YAxis y12 = mChart.getAxisRight(); 
    y12.setEnabled(false); 

    mChart.getLegend().setEnabled(false); 

    cData = new CombinedData(); 

    cData.setData(generateLineData()); 
    cData.setData(generateScatterData()); 
    mChart.setData(cData); 
    mChart.invalidate(); 




} 
protected ScatterData generateScatterData() { 

    ScatterData d = new ScatterData(); 


    d.addDataSet(createFetalSet()); 

    return d; 
} 

private LineData generateLineData() { 
    LineData d = new LineData(); 
    d.addDataSet(createTocoSet()); 
    return d; 
} 
public ScatterDataSet createFetalSet(){ 
    ScatterDataSet set = new ScatterDataSet(null,"Fetal"); 
    set.setScatterShapeSize(10f); 
    set.setDrawValues(true); 
    set.setValueTextSize(10f); 
    set.setDrawValues(false); 
    set.setColor(ColorTemplate.COLORFUL_COLORS[2]); 
    set.setAxisDependency(YAxis.AxisDependency.LEFT); 
    return set; 
} 

private LineDataSet createTocoSet(){ 
    LineDataSet set = new LineDataSet(null,"Toco"); 
    set.setDrawCircles(false); 
    set.setDrawCubic(true); 
    set.setDrawValues(false); 
    set.setColor(ColorTemplate.COLORFUL_COLORS[3]); 
    set.setAxisDependency(YAxis.AxisDependency.LEFT); 
    return set; 


} 
public void AddFetalEntry(float sinValue){ 
    fmDetected ++; 
    CombinedData data = mChart.getData(); 
    if (data != null) { 


     ScatterData scatterDataData = data.getScatterData(); 
     if(scatterDataData != null){ 

      ScatterDataSet set = (ScatterDataSet) data.getDataSetByIndex(1); 
      if (set == null) { 

       set = createFetalSet(); 
       data.addDataSet(set); 
      } 
      scatterDataData.addXValue(""); 
      LineData tocoData = data.getLineData(); 
      if(tocoData != null) { 

       LineDataSet pakk = (LineDataSet) data.getDataSetByIndex(0); 

       scatterDataData.addEntry(new Entry(sinValue,pakk.getEntryCount()-1), 0); 
      } 
      mChart.notifyDataSetChanged(); 
      mChart.invalidate(); 
     } 
     data.addXValue(""); 
     data.notifyDataChanged(); 


     // let the chart know it's data has changed 
     mChart.notifyDataSetChanged(); 
     mChart.invalidate(); 
     mChart.setVisibleXRangeMaximum(1200); 




     //int valueCount = data.getXValCount(); 
     mChart.moveViewToX(data.getXValCount() - 7); 
    } 
} 
public void AddTocoEntry(float sinValue){ 
    CombinedData data = mChart.getData(); 
    if (data != null) { 


     LineData tocoData = data.getLineData(); 
     if(tocoData != null){ 

      LineDataSet set = (LineDataSet) data.getDataSetByIndex(0); 
      if (set == null) { 

       set = createTocoSet(); 
       data.addDataSet(set); 
      } 
      tocoData.addXValue(""); 
      tocoData.addEntry(new Entry(sinValue,set.getEntryCount()),0); 

      mChart.notifyDataSetChanged(); 
      mChart.invalidate(); 
     } 
     data.addXValue(""); 
     data.notifyDataChanged(); 


     // let the chart know it's data has changed 
     mChart.notifyDataSetChanged(); 
     mChart.invalidate(); 
     mChart.setVisibleXRangeMaximum(1200); 




     //int valueCount = data.getXValCount(); 
     mChart.moveViewToX(data.getXValCount() - 7); 

    } 
} 

如果有人可以幫助我，我的代碼看起來更好，我將非常感激。 :)