How to set X axis labels in MP Android Chart (Bar Graph)?

Question

This is with reference to the article : https://github.com/PhilJay/MPAndroidChart/wiki/Setting-Data under the heading Bar Graph.In the given code below:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    View view = inflater.inflate(R.layout.fragment_graph_test, container, false);

    BarChart chart = view.findViewById(R.id.bar_Chart_test);

    List<BarEntry> entries = new ArrayList<>();
    entries.add(new BarEntry(0f, 30f));
    entries.add(new BarEntry(1f, 80f));
    entries.add(new BarEntry(2f, 60f));
    entries.add(new BarEntry(3f, 50f));
    // gap of 2f
    entries.add(new BarEntry(5f, 70f));
    entries.add(new BarEntry(6f, 60f));

    BarDataSet set = new BarDataSet(entries, "BarDataSet");
    BarData data = new BarData(set);
    data.setBarWidth(0.9f); // set custom bar width
    chart.setData(data);
    chart.setFitBars(true); // make the x-axis fit exactly all bars
    chart.invalidate(); // refresh

    return view;
}

the output was:

Here the X values are not displayed.Click here for the ScreenShot

how to set the X-axis values as months(1st Jan,2nd Jan,3rd Jan.....) as displayed in the article.

Answer 1

You just make a simple list of string like this :

final ArrayList<String> xAxisLabel = new ArrayList<>();
    xAxisLabel.add("Mon");
    xAxisLabel.add("Tue");
    xAxisLabel.add("Wed");
    xAxisLabel.add("Thu");
    xAxisLabel.add("Fri");
    xAxisLabel.add("Sat");
    xAxisLabel.add("Sun");

Then you do this :

    XAxis xAxis = chart.getXAxis();
    xAxis.setValueFormatter(new ValueFormatter() {
        @Override
        public String getFormattedValue(float value, AxisBase axis) {
            return xAxisLabel.get((int) value);

        }
    });

Hope this helps.