AndroidChart/MPAndroidChart/MPChartExample/src/main/java/com/xxmassdeveloper/mpchartexample/CandleStickChartActivity.java

package com.xxmassdeveloper.mpchartexample;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.graphics.Paint;
import android.net.Uri;
import android.os.Bundle;
import androidx.core.content.ContextCompat;
import android.view.Menu;
import android.view.MenuItem;
import android.view.WindowManager;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;

import com.github.mikephil.charting.charts.CandleStickChart;
import com.github.mikephil.charting.components.XAxis;
import com.github.mikephil.charting.components.XAxis.XAxisPosition;
import com.github.mikephil.charting.components.YAxis;
import com.github.mikephil.charting.components.YAxis.AxisDependency;
import com.github.mikephil.charting.data.CandleData;
import com.github.mikephil.charting.data.CandleDataSet;
import com.github.mikephil.charting.data.CandleEntry;
import com.github.mikephil.charting.interfaces.datasets.ICandleDataSet;
import com.github.mikephil.charting.interfaces.datasets.IDataSet;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;

import java.util.ArrayList;

public class CandleStickChartActivity extends DemoBase implements OnSeekBarChangeListener {

    private CandleStickChart chart;
    private SeekBar seekBarX, seekBarY;
    private TextView tvX, tvY;

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

        setTitle("CandleStickChartActivity");

        tvX = findViewById(R.id.tvXMax);
        tvY = findViewById(R.id.tvYMax);

        seekBarX = findViewById(R.id.seekBar1);
        seekBarX.setOnSeekBarChangeListener(this);

        seekBarY = findViewById(R.id.seekBar2);
        seekBarY.setOnSeekBarChangeListener(this);

        chart = findViewById(R.id.chart1);
        chart.setBackgroundColor(Color.WHITE);

        chart.getDescription().setEnabled(false);

        // if more than 60 entries are displayed in the chart, no values will be
        // drawn
        chart.setMaxVisibleValueCount(60);

        // scaling can now only be done on x- and y-axis separately
        chart.setPinchZoom(false);

        chart.setDrawGridBackground(false);

        XAxis xAxis = chart.getXAxis();
        xAxis.setPosition(XAxisPosition.BOTTOM);
        xAxis.setDrawGridLines(false);

        YAxis leftAxis = chart.getAxisLeft();
//        leftAxis.setEnabled(false);
        leftAxis.setLabelCount(7, false);
        leftAxis.setDrawGridLines(false);
        leftAxis.setDrawAxisLine(false);

        YAxis rightAxis = chart.getAxisRight();
        rightAxis.setEnabled(false);
//        rightAxis.setStartAtZero(false);

        // setting data
        seekBarX.setProgress(40);
        seekBarY.setProgress(100);

        chart.getLegend().setEnabled(false);
    }

    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

        progress = (seekBarX.getProgress());

        tvX.setText(String.valueOf(progress));
        tvY.setText(String.valueOf(seekBarY.getProgress()));

        chart.resetTracking();

        ArrayList<CandleEntry> values = new ArrayList<>();

        for (int i = 0; i < progress; i++) {
            float multi = (seekBarY.getProgress() + 1);
            float val = (float) (Math.random() * 40) + multi;

            float high = (float) (Math.random() * 9) + 8f;
            float low = (float) (Math.random() * 9) + 8f;

            float open = (float) (Math.random() * 6) + 1f;
            float close = (float) (Math.random() * 6) + 1f;

            boolean even = i % 2 == 0;

            values.add(new CandleEntry(
                    i, val + high,
                    val - low,
                    even ? val + open : val - open,
                    even ? val - close : val + close,
                    getResources().getDrawable(R.drawable.star)
            ));
        }

        CandleDataSet set1 = new CandleDataSet(values, "Data Set");

        set1.setDrawIcons(false);
        set1.setAxisDependency(AxisDependency.LEFT);
//        set1.setColor(Color.rgb(80, 80, 80));
        set1.setShadowColor(Color.DKGRAY);
        set1.setShadowWidth(0.7f);
        set1.setDecreasingColor(Color.RED);
        set1.setDecreasingPaintStyle(Paint.Style.FILL);
        set1.setIncreasingColor(Color.rgb(122, 242, 84));
        set1.setIncreasingPaintStyle(Paint.Style.STROKE);
        set1.setNeutralColor(Color.BLUE);
        //set1.setHighlightLineWidth(1f);

        CandleData data = new CandleData(set1);

        chart.setData(data);
        chart.invalidate();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.candle, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        switch (item.getItemId()) {
            case R.id.viewGithub: {
                Intent i = new Intent(Intent.ACTION_VIEW);
                i.setData(Uri.parse("https://github.com/PhilJay/MPAndroidChart/blob/master/MPChartExample/src/com/xxmassdeveloper/mpchartexample/CandleStickChartActivity.java"));
                startActivity(i);
                break;
            }
            case R.id.actionToggleValues: {
                for (IDataSet set : chart.getData().getDataSets())
                    set.setDrawValues(!set.isDrawValuesEnabled());

                chart.invalidate();
                break;
            }
            case R.id.actionToggleIcons: {
                for (IDataSet set : chart.getData().getDataSets())
                    set.setDrawIcons(!set.isDrawIconsEnabled());

                chart.invalidate();
                break;
            }
            case R.id.actionToggleHighlight: {
                if(chart.getData() != null) {
                    chart.getData().setHighlightEnabled(!chart.getData().isHighlightEnabled());
                    chart.invalidate();
                }
                break;
            }
            case R.id.actionTogglePinch: {
                if (chart.isPinchZoomEnabled())
                    chart.setPinchZoom(false);
                else
                    chart.setPinchZoom(true);

                chart.invalidate();
                break;
            }
            case R.id.actionToggleAutoScaleMinMax: {
                chart.setAutoScaleMinMaxEnabled(!chart.isAutoScaleMinMaxEnabled());
                chart.notifyDataSetChanged();
                break;
            }
            case R.id.actionToggleMakeShadowSameColorAsCandle: {
                for (ICandleDataSet set : chart.getData().getDataSets()) {
                    ((CandleDataSet) set).setShadowColorSameAsCandle(!set.getShadowColorSameAsCandle());
                }

                chart.invalidate();
                break;
            }
            case R.id.animateX: {
                chart.animateX(2000);
                break;
            }
            case R.id.animateY: {
                chart.animateY(2000);
                break;
            }
            case R.id.animateXY: {
                chart.animateXY(2000, 2000);
                break;
            }
            case R.id.actionSave: {
                if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
                    saveToGallery();
                } else {
                    requestStoragePermission(chart);
                }
                break;
            }
        }
        return true;
    }

    @Override
    protected void saveToGallery() {
        saveToGallery(chart, "CandleStickChartActivity");
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {}

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {}
}