RadarChartActivity.java

package com.baruberbagi.androidcharts;

import androidx.appcompat.app.AppCompatActivity;

import android.graphics.Color;
import android.os.Bundle;

import com.github.mikephil.charting.charts.RadarChart;
import com.github.mikephil.charting.components.XAxis;
import com.github.mikephil.charting.data.RadarData;
import com.github.mikephil.charting.data.RadarDataSet;
import com.github.mikephil.charting.data.RadarEntry;
import com.github.mikephil.charting.formatter.IndexAxisValueFormatter;

import java.util.ArrayList;

public class RadarChartActivity extends AppCompatActivity {

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

        RadarChart radarChart = findViewById(R.id.radarChart);

        ArrayList<RadarEntry> visitorsForFirsWebsite = new ArrayList<>();
        visitorsForFirsWebsite.add(new RadarEntry(420));
        visitorsForFirsWebsite.add(new RadarEntry(475));
        visitorsForFirsWebsite.add(new RadarEntry(508));
        visitorsForFirsWebsite.add(new RadarEntry(660));
        visitorsForFirsWebsite.add(new RadarEntry(550));
        visitorsForFirsWebsite.add(new RadarEntry(630));
        visitorsForFirsWebsite.add(new RadarEntry(470));

        RadarDataSet radarDataSetForFirsWebsite = new RadarDataSet(visitorsForFirsWebsite, "Website");
        radarDataSetForFirsWebsite.setColor(Color.RED);
        radarDataSetForFirsWebsite.setFormLineWidth(2f);
        radarDataSetForFirsWebsite.setValueTextColor(Color.RED);
        radarDataSetForFirsWebsite.setValueTextSize(14f);

        ArrayList<RadarEntry> visitorsForSecondWebsite = new ArrayList<>();
        visitorsForSecondWebsite.add(new RadarEntry(310));
        visitorsForSecondWebsite.add(new RadarEntry(420));
        visitorsForSecondWebsite.add(new RadarEntry(685));
        visitorsForSecondWebsite.add(new RadarEntry(820));
        visitorsForSecondWebsite.add(new RadarEntry(490));
        visitorsForSecondWebsite.add(new RadarEntry(730));
        visitorsForSecondWebsite.add(new RadarEntry(200));

        RadarDataSet radarDataSetForSecondWebsite = new RadarDataSet(visitorsForSecondWebsite, "Website 2");
        radarDataSetForSecondWebsite.setColor(Color.BLUE);
        radarDataSetForSecondWebsite.setFormLineWidth(2f);
        radarDataSetForSecondWebsite.setValueTextColor(Color.BLUE);
        radarDataSetForSecondWebsite.setValueTextSize(14f);

        RadarData radarData = new RadarData();
        radarData.addDataSet(radarDataSetForFirsWebsite);
        radarData.addDataSet(radarDataSetForSecondWebsite);

        String[] labels = {"2014", "2015","2016", "2017", "2018", "2019", "2020"};

        XAxis xAxis = radarChart.getXAxis();
        xAxis.setValueFormatter(new IndexAxisValueFormatter(labels));

        radarChart.getDescription().setText("Radar Chart Example");
        radarChart.setData(radarData);
    }
}