MPAndroidChart LineChart仅显示在LineData上

Question

I am having problem creating LineChart it's just showing the last Line when I need to show all Lines can you please help? here's the code:

Collections.addAll(labels,` column);
dataSets = new ArrayList<ILineDataSet>();
for (monthlysales company : companieslist) {
entries.clear();
for (int j = 0; j < listofcompanies.Total.size(); j++) {
entries.add(new Entry(Float.parseFloat(listofcompanies.Total.get(j)), j));
}
setComp1 = new LineDataSet(entries, company.StoreName);
setComp1.setAxisDependency(YAxis.AxisDependency.LEFT);
setComp1.setColor(Color.BLUE);
dataSets.add(setComp1);
}
LineData data = new LineData(column,dataSets);
linechart.setData(data);
linechart.setDescription("Sales");
linechart.animateXY(5000,5000);
linechart.setPinchZoom(true);
linechart.setDoubleTapToZoomEnabled(true);
linechart.setDragDecelerationEnabled(true);
linechart.notifyDataSetChanged();
linechart.invalidate();
}

Thank you

Answer 1

This actually makes sense. You are adding data to the entries list, and then add it to the DataSet correctly. The problem is, you are clearing the entries list every time after you add it. you should use a separate list for each dataset.

replace the line:

entries.clear();

with

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

Answer 2

it's now solved by creating a Function and call it as below :

 **dataSets.add(createLineChart(company,company.StoreName,company.Total));**

                data = new LineData(column,dataSets);


                linechart.setData(data);
                linechart.invalidate();
                linechart.setDescription("Sales");

and this is the function:

 private LineDataSet createLineChart(monthlysales company,String storeName,List<String> listofcompanies){
  //  LineData data=new LineData();
    ArrayList<Entry> entries= new ArrayList<Entry>();
    for (int j = 0; j < listofcompanies.size(); j++) {

        entries.add(new Entry(Float.parseFloat(listofcompanies.get(j)),j));

linechart.notifyDataSetChanged();

    }
    Random rd = new Random();
    setComp1 = new LineDataSet(entries,storeName);


    setComp1.setColor(Color.argb(255,rd.nextInt(256),rd.nextInt(256),rd.nextInt(256)));


   // LineData data =new LineData(labels,dataset);
    return setComp1;

}

it seems that the LineDataSet was used the last time it was called displaying just one line.