MPAndroidChart - Why BarData constructor not work?

Question

My code:

 public BarData getBarData(String fieldName) {
        ArrayList entries = new ArrayList<>();
        entries.add(new BarEntry         


        

Answer 1

It's working version of Barchart with new BarData(datasets); here is code with xml. you needto edit tools:context= in xml.

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

import com.github.mikephil.charting.charts.BarChart;
import com.github.mikephil.charting.data.BarData;
import com.github.mikephil.charting.data.BarDataSet;
import com.github.mikephil.charting.data.BarEntry;
import com.github.mikephil.charting.interfaces.datasets.IBarDataSet;
import com.github.mikephil.charting.utils.ColorTemplate;

import java.util.ArrayList;

public class SubActivity_05 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sub_05);

        BarChart bchart = (BarChart) findViewById(R.id.chart1);

        ArrayList yVals1 = new ArrayList();

        for (int i = (int) 0; i < 10 + 1; i++) {
            float val = (float) (Math.random());
            yVals1.add(new BarEntry(i, val));
        }

        BarDataSet set1;

        set1 = new BarDataSet(yVals1, "The year 2017");
        set1.setColors(ColorTemplate.MATERIAL_COLORS);

        ArrayList dataSets = new ArrayList();
        dataSets.add(set1);

        BarData data = new BarData(dataSets);

        data.setValueTextSize(10f);
        data.setBarWidth(0.9f);

        bchart.setTouchEnabled(false);
        bchart.setData(data);

    }

xml

It's good to check out tutorial page. https://github.com/PhilJay/MPAndroidChart/wiki/Getting-Started