MPChartExample/src/com/xxmassdeveloper/mpchartexample/RealmDatabaseActivity.java

package com.xxmassdeveloper.mpchartexample;

import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.view.WindowManager;

import com.github.mikephil.charting.animation.Easing;
import com.github.mikephil.charting.charts.LineChart;
import com.github.mikephil.charting.components.YAxis;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.data.LineData;
import com.github.mikephil.charting.data.realm.RealmLineDataSet;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;

import java.util.ArrayList;

/**
 * Created by Philipp Jahoda on 21/10/15.
 */
public class RealmDatabaseActivity extends DemoBase {

    private LineChart mChart;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_linechart_noseekbar);

        mChart = (LineChart) findViewById(R.id.chart1);
        mChart.setDrawGridBackground(false);

        // no description text
        mChart.setDescription("");
        mChart.setNoDataTextDescription("You need to provide data for the chart.");

        // enable touch gestures
        mChart.setTouchEnabled(true);

        // enable scaling and dragging
        mChart.setDragEnabled(true);
        mChart.setScaleEnabled(true);

        // if disabled, scaling can be done on x- and y-axis separately
        mChart.setPinchZoom(true);

        Typeface tf = Typeface.createFromAsset(getAssets(), "OpenSans-Regular.ttf");

        YAxis leftAxis = mChart.getAxisLeft();
        leftAxis.removeAllLimitLines(); // reset all limit lines to avoid overlapping lines
        leftAxis.setAxisMaxValue(220f);
        leftAxis.setAxisMinValue(-50f);
        leftAxis.setStartAtZero(false);
        leftAxis.enableGridDashedLine(10f, 10f, 0f);

        mChart.getAxisRight().setEnabled(false);

        // add data
        setData(45, 100);

        mChart.animateY(1400, Easing.EasingOption.EaseInOutQuart);
    }

    private void setData(int count, float range) {

        ArrayList<String> xVals = new ArrayList<String>();
        for (int i = 0; i < count; i++) {
            xVals.add((i) + "");
        }

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

        for (int i = 0; i < count; i++) {

            float mult = (range + 1);
            float val = (float) (Math.random() * mult) + 3;// + (float)
            // ((mult *
            // 0.1) / 10);
            yVals.add(new Entry(val, i));
        }

        // create a dataset and give it a type
        RealmLineDataSet set1 = new RealmLineDataSet();

        // set the line to be drawn like this "- - - - - -"
//        set1.enableDashedLine(10f, 5f, 0f);
//        set1.enableDashedHighlightLine(10f, 5f, 0f);
//        set1.setColor(Color.BLACK);
//        set1.setCircleColor(Color.BLACK);
//        set1.setLineWidth(1f);
//        set1.setCircleSize(3f);
//        set1.setDrawCircleHole(false);
//        set1.setValueTextSize(9f);
//        set1.setFillAlpha(65);
//        set1.setFillColor(Color.BLACK);
//        set1.setDrawFilled(true);
        // set1.setShader(new LinearGradient(0, 0, 0, mChart.getHeight(),
        // Color.BLACK, Color.WHITE, Shader.TileMode.MIRROR));

        ArrayList<RealmLineDataSet> dataSets = new ArrayList<RealmLineDataSet>();
        dataSets.add(set1); // add the datasets

        // create a data object with the datasets
        LineData data = new LineData(null, dataSets);

        // set data
        mChart.setData(data);
    }
}