Multiple line charts don't work?

[anta40]

Hello,

I'd like to draw Bollinger Band, so guess I need 3 line charts and 1 candle chart.
And this is my code (which is based on CombinedChartActivity.java):

      protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_chart);

    mChart = (CombinedChart) findViewById(R.id.chart);
     mChart.setDescription("");
     mChart.setBackgroundColor(Color.WHITE);
     mChart.setDrawGridBackground(false);
     mChart.setDrawBarShadow(false);
     mChart.setDrawOrder(new DrawOrder[] {DrawOrder.LINE, DrawOrder.LINE, DrawOrder.LINE, DrawOrder.CANDLE});

     YAxis rightAxis = mChart.getAxisRight();
     rightAxis.setDrawGridLines(false);

     YAxis leftAxis = mChart.getAxisLeft();
     leftAxis.setDrawGridLines(false);

     XAxis xAxis = mChart.getXAxis();
     xAxis.setPosition(XAxisPosition.BOTH_SIDED);

     CombinedData data = new CombinedData(mMonths);
     data.setData(generateCandleData());
     data.setData(generateLineData1());
     data.setData(generateLineData2());
     data.setData(generateLineData3());
     mChart.setData(data);
        mChart.invalidate();

}

private LineData generateLineData1() {

    LineData d = new LineData();

    ArrayList<Entry> entries = new ArrayList<Entry>();

    float[] values = new float[]{ 88, 89, 89, 89, 89, 90 , 90, 90, 90, 91, 88 , 88};

    for (int index = 0; index < itemcount; index++)
        entries.add(new Entry(values[index], index));   

    LineDataSet set = new LineDataSet(entries, "Line 1");
    set.setColor(Color.rgb(240, 238, 70));
    set.setLineWidth(2.5f);
    set.setCircleColor(Color.rgb(240, 238, 70));
    set.setCircleSize(5f);
    set.setFillColor(Color.rgb(240, 238, 70));
    set.setDrawCubic(true);
    set.setDrawValues(true);
    set.setValueTextSize(10f);
    set.setValueTextColor(Color.rgb(240, 238, 70));

    set.setAxisDependency(YAxis.AxisDependency.LEFT);

    d.addDataSet(set);

    return d;
}

private LineData generateLineData2() {

    LineData d = new LineData();

    ArrayList<Entry> entries = new ArrayList<Entry>();

    float[] values = new float[] {91, 91, 92, 92, 95, 90, 95 , 94, 95, 96, 98, 99};

    for (int index = 0; index < itemcount; index++)
        entries.add(new Entry(values[index], index));

    LineDataSet set = new LineDataSet(entries, "Line 2");
    set.setColor(Color.GREEN);
    set.setLineWidth(2.5f);
    set.setCircleColor(Color.rgb(240, 238, 70));
    set.setCircleSize(5f);
    set.setFillColor(Color.rgb(240, 238, 70));
    set.setDrawCubic(true);
    set.setDrawValues(true);
    set.setValueTextSize(10f);
    set.setValueTextColor(Color.rgb(240, 238, 70));

    set.setAxisDependency(YAxis.AxisDependency.LEFT);

    d.addDataSet(set);

    return d;
}

private LineData generateLineData3() {

    LineData d = new LineData();

    ArrayList<Entry> entries = new ArrayList<Entry>();

    float[] values = new float[] {85, 85, 86, 86, 80, 80, 83, 84, 82, 85, 80, 86};

    for (int index = 0; index < itemcount; index++)
        entries.add(new Entry(values[index], index));

    LineDataSet set = new LineDataSet(entries, "Line 3");
    set.setColor(Color.RED);
    set.setLineWidth(2.5f);
    set.setCircleColor(Color.rgb(240, 238, 70));
    set.setCircleSize(5f);
    set.setFillColor(Color.rgb(240, 238, 70));
    set.setDrawCubic(true);
    set.setDrawValues(true);
    set.setValueTextSize(10f);
    set.setValueTextColor(Color.rgb(240, 238, 70));

    set.setAxisDependency(YAxis.AxisDependency.LEFT);

    d.addDataSet(set);

    return d;
}

protected CandleData generateCandleData() {

    CandleData d = new CandleData();

    ArrayList<CandleEntry> entries = new ArrayList<CandleEntry>();

    for (int index = 0; index < itemcount; index++)
        entries.add(new CandleEntry(index, 20f, 10f, 13f, 17f));

    CandleDataSet set = new CandleDataSet(entries, "Data");
    set.setColor(Color.rgb(80, 80, 80));
    set.setBodySpace(0.3f);
    set.setValueTextSize(10f);
    set.setDrawValues(false);
    d.addDataSet(set);

    return d;
}

Out of those 3 line charts, only the last 1 is drawn. Is this indeed a bug, or maybe I simply don't understand how to use the API properly? I'm using MPAndroidChart 2.1.0, btw.

[PhilJay]

Put the lines into one LineData object, not 3 different ones.

[ITM15-HR]

Thanks, that works great :)
I just created one LineData and added all LineDataSets to it.

Works perfectly!

[maniixm]

I want to display like this ... multiple line xaxis and values