android - Mpandroidchart text not properly showing on x axis on line chart

Question

I am working on Mpandroidchart. I have created a line chart and tried to place strings on my xaxis.

final ArrayList<String> xAxisLabel = new ArrayList<>(Arrays.asList("March","April","May"));



private ArrayList<Entry> lineChartDataSet(){
    ArrayList<Entry> dataSet = new ArrayList<Entry>();

    dataSet.add(new Entry(1,40));
    dataSet.add(new Entry(2,10));
    dataSet.add(new Entry(3,15));    
    return  dataSet;


}

 lineDataSet = new LineDataSet(lineChartDataSet(),"data set");
 XAxis xAxis = lineChart.getXAxis();
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setDrawGridLines(false);

    //String setter in x-Axis
    xAxis.setValueFormatter(new com.github.mikephil.charting.formatter.IndexAxisValueFormatter(xAxisLabel));
    xAxis.setGranularity(1f);
    xAxis.setGranularityEnabled(true);

Output

In the above image, you can see that month names are not properly placed. i.e march is not displaying and only april and may are shown.

Expected Output

How can I do it?

Any help would be highly appreciated

Answer 1

Instead of IndexAxisValueFormatter in MPAndroidChart version v3.1.0 you can use a custom ValueFormatter and override String getAxisLabel(float value, AxisBase axis) method where you can define your own logic to replace for each X value its corresponding String. Example based on your data Set will be like below:

xAxis.setValueFormatter(new ValueFormatter() {
  @Override
  public String getAxisLabel(float value, AxisBase axis) {
     String label = "";
     if(value == 1)
       label = "March";
     else if(value == 2)
       label = "April";
     else if(value == 3)
       label = "May";
     return label;
   }
}); 

And the result will be like below: