CODEWITHSUNDEEP
javaandroidcharmpandroidchart
Paras Santoki
Paras Santoki

Reputation: 841

Set Label is not working in Bar Chart using MPAndroid Library

enter image description hereI am using MPAndroid library. implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3' I need to create BarChart with labels. My code is bellow but it's not working: This is array of bar to display.

public ArrayList<BarEntry> getBarEntryArrayList() {

    ArrayList<BarEntry> barEntries = new ArrayList<BarEntry>();
    barEntries.add(new BarEntry(2f, 0));
    barEntries.add(new BarEntry(4f, 1));
    barEntries.add(new BarEntry(6f, 2));
    barEntries.add(new BarEntry(8f, 3));
    barEntries.add(new BarEntry(7f, 4));
    barEntries.add(new BarEntry(3f, 5));
    return barEntries;

}

This is label array to display at bottom.

public ArrayList<String> getBarEntryLabels() {

    ArrayList<String> BarEntryLabels = new ArrayList<String>();
    BarEntryLabels.add("J");
    BarEntryLabels.add("F");
    BarEntryLabels.add("M");
    BarEntryLabels.add("A");
    BarEntryLabels.add("M");
    BarEntryLabels.add("J");
    BarEntryLabels.add("J");
    BarEntryLabels.add("A");
    BarEntryLabels.add("S");
    BarEntryLabels.add("O");
    BarEntryLabels.add("N");
    BarEntryLabels.add("D");
    return BarEntryLabels;

}

Problem to set labels array and entry array

private void setBarChartData() {
    BarDataSet barDataSet = new BarDataSet(getBarEntryArrayList(), getBarEntryLabels() );
    barDataSet.setColors(ColorTemplate.COLORFUL_COLORS);
    BarData barData = new BarData(barDataSet);
    barChart.setData(barData);
    barChart.animateY(3000);

}

This line is not working.

BarDataSet barDataSet = new BarDataSet(getBarEntryArrayList(), getBarEntryLabels() );

If make code without labels it's working.

BarDataSet barDataSet = new BarDataSet(getBarEntryArrayList(), "Dummy text" );

I have to use array of lables. Thanks in advance.

I need to created graph like this. Please help me.

Upvotes: 1

Views: 2369

Answers (3)

Kirit Khant
Kirit Khant

Reputation: 141

You can set it as following way,

In Kotlin, 

val xAxis = chart.xAxis
xAxis.valueFormatter = IndexAxisValueFormatter(labels)

If you are still facing issue, make sure you have not hidden x-Axis. If you'll hide x-Axis, label will not be shown. If you want x-Axis hidden then, you have to make x-Axis visible and give it a transparent color.

Upvotes: 2

Muhammad Saad Rafique
Muhammad Saad Rafique

Reputation: 3189

You need to do following:

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

Happy Coding :)

Upvotes: 3

Misha Akopov
Misha Akopov

Reputation: 13027

When you create bar entries, add the label as third parameter:

    barEntries.add(new BarEntry(2f, 0, "J"));
    barEntries.add(new BarEntry(4f, 1, "F"));
    barEntries.add(new BarEntry(6f, 2, "M"));
    barEntries.add(new BarEntry(8f, 3, "A"));
    barEntries.add(new BarEntry(7f, 4, "M"));
    barEntries.add(new BarEntry(3f, 5, "P"));

After barChart.setData(barData); you can set Labels above or below bars with setValueFormatter:

    barChart.getBarData().setValueFormatter(new IValueFormatter() {
        @Override
        public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
            return entry.getData().toString();
        }
    });

Also increase font size:

barChart.getData().setValueTextSize(15);

P.S. you don't need getBarEntryLabels method.

Here is the result:

enter image description here

Upvotes: 4

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