MPAndroid Chart not displaying any labels for xAxis , what is missing?

Question

I'm implementing a feature for displaying Incomes/Expenses for properties & also provided Filter for 1 Month , 3 Months , 6 Months & 12 Months .

So, I have to display Months labels according to filter selected for example if 3 Month filter selected then need to display March , Feb & Jan but what currently labels are not displaying on XAxis.

Here is my code , please rectify any issue:

private void setChart() {

    ArrayList<BarEntry> incomeEntries = getIncomeEntries();
    ArrayList<BarEntry> expenseEntries = getExpenseEntries();

    BarDataSet set1, set2;

    set1 = new BarDataSet(incomeEntries, "Income");
    set1.setColor(Color.rgb(65, 168, 121));
    set1.setValueTextColor(Color.rgb(55, 70, 73));
    set1.setValueTextSize(10f);

    set2 = new BarDataSet(expenseEntries, "Expense");
    set2.setColors(Color.rgb(241, 107, 72));
    set2.setValueTextColor(Color.rgb(55, 70, 73));
    set2.setValueTextSize(10f);

    ArrayList<IBarDataSet> dataSets = new ArrayList<>();
    dataSets.add(set1);
    dataSets.add(set2);

    BarData data = new BarData(dataSets);
    barChart.setData(data);


    barChart.getDescription().setEnabled(false);
    barChart.setDrawBarShadow(false);
    barChart.setDrawValueAboveBar(true);
    barChart.setMaxVisibleValueCount(10);
    barChart.setPinchZoom(false);
    barChart.setDrawGridBackground(false);
    barChart.animateY(1400, Easing.EaseInOutQuad);
    barChart.animateXY(3000, 3000);

    Legend l = barChart.getLegend();
    l.setWordWrapEnabled(true);
    l.setTextSize(14);
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.CENTER);
    l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
    l.setDrawInside(false);
    l.setForm(Legend.LegendForm.CIRCLE);


    XAxis xAxis = barChart.getXAxis();
    xAxis.setGranularity(1f);
    xAxis.setCenterAxisLabels(true);
    xAxis.setDrawGridLines(false);
    xAxis.setLabelRotationAngle(-45);
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setAxisMaximum(data.getXMax() + 0.25f);

    ArrayList<String> formatter = getFormattter();

    Log.d(TAG,"Labels Received :"+formatter.size()); // Printing 3

    barChart.getXAxis().setValueFormatter(new IndexAxisValueFormatter(formatter));

    barChart.getXAxis().setLabelCount(formatter.size(),true);

    Log.d(TAG,"Labels Count :"+xAxis.getLabelCount()); // Printing 3

    YAxis leftAxis = barChart.getAxisLeft();
    leftAxis.removeAllLimitLines();
    leftAxis.setTypeface(Typeface.DEFAULT);
    leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setTextColor(Color.BLACK);
    leftAxis.setDrawGridLines(false);
    leftAxis.setAxisMinValue(0f); // this replaces setStartAtZero(true
    barChart.getAxisRight().setEnabled(false);

    float maxValue = 0, minValue = 0;

    for (int i = 0; i < incomeEntries.size(); i++) {

        if (maxValue < incomeEntries.get(i).getY()) {
            maxValue = incomeEntries.get(i).getY();
        }

        if (maxValue < expenseEntries.get(i).getY()) {
            maxValue = expenseEntries.get(i).getY();
        }

    }

    maxValue = maxValue + 100;
    Log.e(TAG, "==================== MAX VALUE = " + maxValue);

    leftAxis.setAxisMaximum(maxValue);
    leftAxis.setAxisMinimum(minValue);

    leftAxis.setAxisMaxValue(maxValue);
    leftAxis.setStartAtZero(true);

    data.setValueFormatter(new LargeValueFormatter());

    //data
    float groupSpace = 0.25f;
    float barSpace = 0.05f; // x2 dataset
    float barWidth = 0.35f; // x2 dataset


    barChart.getBarData().setBarWidth(barWidth);
    barChart.getXAxis().setAxisMinValue(10f);
    barChart.groupBars(10, groupSpace, barSpace);
    barChart.invalidate();

}

private ArrayList<String> getFormattter() {

    Log.e(TAG, "GET FORMATTED VALUE");

    switch (chartType) {

        case AppConstants.CHART_TYPE_1_MONTH:
            monthFormatter();
            return oneMonthLabels;

        case AppConstants.CHART_TYPE_3_MONTH:
            threeMonthFormatter();
            return threeMonthLabels;

        case AppConstants.CHART_TYPE_6_MONTH:
            sixMonthFormatter();
            return sixMonthLabels;

        case AppConstants.CHART_TYPE_12_MONTH:
            yearFormatter();
            return yearLabels;
    }
    return null;
}

private void threeMonthFormatter() {

    Log.e(TAG, "threeMonthFormatter , label list size : " + threeMonthLabels.size());
    if (null != threeMonthLabels) {
        threeMonthLabels.clear();
    }

    Calendar calendar = Calendar.getInstance();
    String month = new SimpleDateFormat("MMM").format(calendar.getTime());
    threeMonthLabels.add(month);

    calendar.add(Calendar.MONTH, -1);
    month = new SimpleDateFormat("MMM").format(calendar.getTime());
    threeMonthLabels.add(month);

    calendar.add(Calendar.MONTH, -1);
    month = new SimpleDateFormat("MMM").format(calendar.getTime());
    threeMonthLabels.add(month);

    for (int i = 0; i < threeMonthLabels.size(); i++) {
        Log.e(TAG, "Label : " + threeMonthLabels.get(i));
    }
}

I have attached screen which is achieved as of now.As you can see as per three month Filter , it's displaying bars as per 3 months but there are no labels even monthFormatter create exactly 3 months labels.

Here is another screenshot to display labels received log from Formatter method.

Log From Formatter method

Main Screen

[How to create a Minimal, Complete, and Verifiable example](https://stackoverflow.com/help/mcve). Please consider. — Ole V.V., Mar 25 '19 at 15:40
Can you post the following code: new IndexAxisValueFormatter(formatter) — Ricardo, Mar 27 '19 at 11:01
Hi @Ricardo , formatter is actually ArrayList which has labels received from getFormatter() method, something like this ArrayList formatter = getFormattter(); barChart.getXAxis().setValueFormatter(new IndexAxisValueFormatter(formatter)); Is this something you asking for ? — Deep Shah, Mar 27 '19 at 11:25
You have this in you github repo?. anyways will answer this by end of the day. — Extremis II, Mar 27 '19 at 11:28
@sudesh , sorry not uploaded on github repo . Thanks for your interest & looking forward to your answer. — Deep Shah, Mar 27 '19 at 11:33
@DeepShah can you post the code of the formatter? Thats what gets the values for the Axis — Ricardo, Mar 27 '19 at 12:02
Also, if this `barChart.getXAxis().setLabelCount(formatter.size(),true);` returns 0, you wont get labels either — Ricardo, Mar 27 '19 at 12:03
@Ricardo , I have received 3 labels for 3 months & also able to print xAxis.getLabelCount() with value 3. — Deep Shah, Mar 27 '19 at 12:28
ping me on hangout or chat.stackoverflow.com I have same type of [issue](https://stackoverflow.com/questions/55613135/mpchart-library-is-hiding-x-axis-labels-including-bars) — Anshul Tyagi, Apr 11 '19 at 12:00

score 16 · Accepted Answer · edited Mar 28 '19 at 15:02

These two lines are causing the issue :

barChart.getXAxis().setAxisMinValue(10f);     
barChart.groupBars(10, groupSpace, barSpace);

you are setting the minimum value of x axis to 10, whereas the labels will begin with index 0, So internally IndexOut of bound exception keeps occurring So,

Change To:

barChart.getXAxis().setAxisMinValue(0f);     // Better remove setAxisMinValue(), as it deprecated
barChart.groupBars(0, groupSpace, barSpace);

If you still want to have 10 as the initial spacing, override IAxisValueFormatter (Not recommended)

barChart.getXAxis().setValueFormatter(new IndexAxisValueFormatter(formatter) {

 @Override
        public String getFormattedValue(float value) {
            int x = (int)value / 10
            if(x > = 0 && x < formatter.size())
               return formatter.get(x);
            else
               return "";
        }
});

As you have fixed group space, bar space and width. you will need to heavily customise for multiple dataset.

However I wouldn't go with your solution for such a dynamic graph,

I have re-written your solution to adapt to changing width. (This are the results)

Github Project Link

Apk Link

BarChart barChart;
ArrayList<IBarDataSet> dataSets = new ArrayList<>();
float defaultBarWidth = -1;
List<String> xAxisValues = new ArrayList<>(Arrays.asList("Jan", "Feb", "March", "April", "May", "June","July", "August", "September", "October", "November", "December"));


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    barChart = findViewById(R.id.barchart);
    setChart(3);
    RadioGroup radioGroup = findViewById(R.id.radio_group);
    radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup radioGroup, int switchId) {

            switch (switchId) {
                case R.id.one_month:
                    setChart(1);
                    break;
                case R.id.three_month:
                    setChart(3);
                    break;
                case R.id.six_month:
                    setChart(6);
                    break;
                case R.id.tweleve_month:
                    setChart(12);
                    break;
            }
        }
    });
}


private void setChart(int size) {

    List<BarEntry> incomeEntries = getIncomeEntries(size);
    List<BarEntry> expenseEntries = getExpenseEntries(size);
    dataSets = new ArrayList<>();
    BarDataSet set1, set2;

    set1 = new BarDataSet(incomeEntries, "Income");
    set1.setColor(Color.rgb(65, 168, 121));
    set1.setValueTextColor(Color.rgb(55, 70, 73));
    set1.setValueTextSize(10f);

    set2 = new BarDataSet(expenseEntries, "Expense");
    set2.setColors(Color.rgb(241, 107, 72));
    set2.setValueTextColor(Color.rgb(55, 70, 73));
    set2.setValueTextSize(10f);

    dataSets.add(set1);
    dataSets.add(set2);

    BarData data = new BarData(dataSets);
    barChart.setData(data);
    barChart.getAxisLeft().setAxisMinimum(0);

    barChart.getDescription().setEnabled(false);
    barChart.getAxisRight().setAxisMinimum(0);
    barChart.setDrawBarShadow(false);
    barChart.setDrawValueAboveBar(true);
    barChart.setMaxVisibleValueCount(10);
    barChart.setPinchZoom(false);
    barChart.setDrawGridBackground(false);

    Legend l = barChart.getLegend();
    l.setWordWrapEnabled(true);
    l.setTextSize(14);
    l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
    l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.CENTER);
    l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
    l.setDrawInside(false);
    l.setForm(Legend.LegendForm.CIRCLE);

    XAxis xAxis = barChart.getXAxis();
    xAxis.setGranularity(1f);
    xAxis.setCenterAxisLabels(true);
    xAxis.setDrawGridLines(false);
    xAxis.setLabelRotationAngle(-45);
    xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
    xAxis.setAxisMaximum(getExpenseEntries(size).size());

    barChart.getXAxis().setValueFormatter(new IndexAxisValueFormatter(xAxisValues));

    YAxis leftAxis = barChart.getAxisLeft();
    leftAxis.removeAllLimitLines();
    leftAxis.setTypeface(Typeface.DEFAULT);
    leftAxis.setPosition(YAxis.YAxisLabelPosition.OUTSIDE_CHART);
    leftAxis.setTextColor(Color.BLACK);
    leftAxis.setDrawGridLines(false);
    barChart.getAxisRight().setEnabled(false);

    setBarWidth(data, size);
    barChart.invalidate();

}

private void setBarWidth(BarData barData, int size) {
    if (dataSets.size() > 1) {
        float barSpace = 0.02f;
        float groupSpace = 0.3f;
        defaultBarWidth = (1 - groupSpace) / dataSets.size() - barSpace;
        if (defaultBarWidth >= 0) {
            barData.setBarWidth(defaultBarWidth);
        } else {
            Toast.makeText(getApplicationContext(), "Default Barwdith " + defaultBarWidth, Toast.LENGTH_SHORT).show();
        }
        int groupCount = getExpenseEntries(size).size();
        if (groupCount != -1) {
            barChart.getXAxis().setAxisMinimum(0);
            barChart.getXAxis().setAxisMaximum(0 + barChart.getBarData().getGroupWidth(groupSpace, barSpace) * groupCount);
            barChart.getXAxis().setCenterAxisLabels(true);
        } else {
            Toast.makeText(getApplicationContext(), "no of bar groups is " + groupCount, Toast.LENGTH_SHORT).show();
        }

        barChart.groupBars(0, groupSpace, barSpace); // perform the "explicit" grouping
        barChart.invalidate();
    }
}

private List<BarEntry> getExpenseEntries(int size) {
    ArrayList<BarEntry> expenseEntries = new ArrayList<>();

    expenseEntries.add(new BarEntry(1,1710));
    expenseEntries.add(new BarEntry(2,2480));
    expenseEntries.add(new BarEntry(3,242));
    expenseEntries.add(new BarEntry(4,2409));
    expenseEntries.add(new BarEntry(5,8100));
    expenseEntries.add(new BarEntry(6,1200));
    expenseEntries.add(new BarEntry(7,6570));
    expenseEntries.add(new BarEntry(8,5455));
    expenseEntries.add(new BarEntry(9,15000));
    expenseEntries.add(new BarEntry(10,11340));
    expenseEntries.add(new BarEntry(11,9100));
    expenseEntries.add(new BarEntry(12,6300));
    return expenseEntries.subList(0, size);
}

private List<BarEntry> getIncomeEntries(int size) {
    ArrayList<BarEntry> incomeEntries = new ArrayList<>();

    incomeEntries.add(new BarEntry(1, 11300));
    incomeEntries.add(new BarEntry(2, 1390));
    incomeEntries.add(new BarEntry(3, 1190));
    incomeEntries.add(new BarEntry(4, 7200));
    incomeEntries.add(new BarEntry(5, 4790));
    incomeEntries.add(new BarEntry(6, 4500));
    incomeEntries.add(new BarEntry(7, 8000));
    incomeEntries.add(new BarEntry(8, 7034));
    incomeEntries.add(new BarEntry(9, 4307));
    incomeEntries.add(new BarEntry(10, 8762));
    incomeEntries.add(new BarEntry(11, 4355));
    incomeEntries.add(new BarEntry(12, 6000));
    return incomeEntries.subList(0, size);
}

Note that the setBarWidth() function is the most important and plays the role of adjusting the width and size of graph bar.

@Deepshah, did the solution help.? or are you still facing some issue. — Extremis II, Mar 28 '19 at 12:07
@sudesh Hi. I'm also facing a [problem](https://stackoverflow.com/questions/55613135/mpchart-library-is-hiding-x-axis-labels-including-bars), it would be great if you can help me in it. — Anshul Tyagi, Apr 11 '19 at 04:40
@sudesh hey , i am working on something similar but facing problem with the value as it is predefined ,which is (0,20,40,..) and i want to display my string arraylist values on x-axis but while returning values it takes index value as 20 and there is nothing in my arraylist at 20 index ..here is what i am trying to do...https://stackoverflow.com/questions/62791105/what-is-the-best-way-to-display-horizontal-bar-for-representing-data?noredirect=1#comment111041251_62791105 ..please help — payal_suthar, Jul 08 '20 at 11:48
@payal_suthar, I couldn't find the question in the above-mentioned link — Extremis II, Jul 11 '20 at 04:37
@sudesh ,sorry i deleted that one as it was violating the guidelines and posted a new one ..Here is the question ..https://stackoverflow.com/questions/62829006/how-to-display-available-and-unavailable-slots-in-a-horizontal-bar-graph-in-andr ... please help me through this — payal_suthar, Jul 11 '20 at 04:57
@payal_suthar, the correct way of implementing this is using HorizontalBarGraph and stacked bar entry. In your case setting width is not recommended. I Have posted the answer to your StackOverflow question. you can try out the project linked in your answers comment section. — Extremis II, Jul 11 '20 at 19:25
thanks for sharing the solution, if someone is looking for decreasing the bar width then just increase the groupSpace.. dont change the formula for barwidth or it will mess with labels again. — MDT, Sep 16 '21 at 15:24

score 2 · Answer 2 · answered Mar 27 '19 at 12:37

2

Replace below line

barChart.getXAxis().setValueFormatter(new IAxisValueFormatter(formatter));

instead of

barChart.getXAxis().setValueFormatter(new IndexAxisValueFormatter(formatter));

and check.

answered Mar 27 '19 at 12:37

Viraj Patel

2,113
16
23

Thanks. pointed me in the right direction. ir's now ValueFormatter() – Richard Muvirimi Apr 14 '21 at 16:31

MPAndroid Chart not displaying any labels for xAxis , what is missing?

2 Answers2

Linked