Creating a Simple Pie Chart in Android

1) build.gradle( Module:app )  Code

Please add below following repositories and dependencies code to your build.gradle( Module:app ) file and You don’t need to download manually the whole library because after adding below code it will automatically download and install the Mp Android Library into your project.

dependencies {

 compile 'com.github.PhilJay:MPAndroidChart:v2.2.4'

}

repositories {

 maven { url "https://jitpack.io" }

}

2) XML Code

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context="payprocess.charts.PChart">

    <com.github.mikephil.charting.charts.PieChart

        android:layout_marginTop="20dp"

        android:id="@+id/piechart"

        android:layout_width="match_parent"

        android:layout_height="match_parent" />

</RelativeLayout>

3) Java Code

public class PChart extends AppCompatActivity {

    PieChart mChart;

    private String[] xValues = {"Data 1", "Data 2", "Data 3"};

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_pchart);

        mChart = (PieChart)findViewById(R.id.piechart);

        ArrayList<Entry> entries = new ArrayList<>();

        entries.add(new Entry(40, 0));

        entries.add(new Entry(11, 0));

        entries.add(new Entry(2, 0));

        PieDataSet dataSet =  new PieDataSet(entries, "");

        PieData data = new PieData(xValues, dataSet);

        dataSet.setColors(new int[]{Color.YELLOW, Color.CYAN, Color.GREEN});

        dataSet.setSliceSpace(5f);

        dataSet.setValueTextSize(14f);

        mChart.setUsePercentValues(true);

        mChart.setDrawHoleEnabled(false);

        mChart.setData(data);

        mChart.invalidate();

    }

}