MPChartExample/src/main/java/com/xxmassdeveloper/mpchartexample/LineChartActivity2.java - master - NikolayIvkin/MPAndroidChart1

MPChartExample/src/main/java/com/xxmassdeveloper/mpchartexample/LineChartActivity2.java
408 строк14 KB
almic
Bump version to 3.1.0-alpha
29 окт 2018, 22:23
29 окт 2018, 22:239148f37

package com.xxmassdeveloper.mpchartexample;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import androidx.core.content.ContextCompat;
import android.util.Log;
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.LineChart;
import com.github.mikephil.charting.components.Legend;
import com.github.mikephil.charting.components.Legend.LegendForm;
import com.github.mikephil.charting.components.XAxis;
import com.github.mikephil.charting.components.YAxis;
import com.github.mikephil.charting.components.YAxis.AxisDependency;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.data.LineData;
import com.github.mikephil.charting.data.LineDataSet;
import com.github.mikephil.charting.highlight.Highlight;
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet;
import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
import com.github.mikephil.charting.utils.ColorTemplate;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;

import java.util.ArrayList;
import java.util.List;

/**
 * Example of a dual axis {@link LineChart} with multiple data sets.
 *
 * @since 1.7.4
 * @version 3.1.0
 */
public class LineChartActivity2 extends DemoBase implements OnSeekBarChangeListener,
        OnChartValueSelectedListener {

    private LineChart 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_linechart);

        setTitle("LineChartActivity2");

        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.setOnChartValueSelectedListener(this);

        // no description text
        chart.getDescription().setEnabled(false);

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

        chart.setDragDecelerationFrictionCoef(0.9f);

        // enable scaling and dragging
        chart.setDragEnabled(true);
        chart.setScaleEnabled(true);
        chart.setDrawGridBackground(false);
        chart.setHighlightPerDragEnabled(true);

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

        // set an alternative background color
        chart.setBackgroundColor(Color.LTGRAY);

        // add data
        seekBarX.setProgress(20);
        seekBarY.setProgress(30);

        chart.animateX(1500);

        // get the legend (only possible after setting data)
        Legend l = chart.getLegend();

        // modify the legend ...
        l.setForm(LegendForm.LINE);
        l.setTypeface(tfLight);
        l.setTextSize(11f);
        l.setTextColor(Color.WHITE);
        l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
        l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.LEFT);
        l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
        l.setDrawInside(false);
//        l.setYOffset(11f);

        XAxis xAxis = chart.getXAxis();
        xAxis.setTypeface(tfLight);
        xAxis.setTextSize(11f);
        xAxis.setTextColor(Color.WHITE);
        xAxis.setDrawGridLines(false);
        xAxis.setDrawAxisLine(false);

        YAxis leftAxis = chart.getAxisLeft();
        leftAxis.setTypeface(tfLight);
        leftAxis.setTextColor(ColorTemplate.getHoloBlue());
        leftAxis.setAxisMaximum(200f);
        leftAxis.setAxisMinimum(0f);
        leftAxis.setDrawGridLines(true);
        leftAxis.setGranularityEnabled(true);

        YAxis rightAxis = chart.getAxisRight();
        rightAxis.setTypeface(tfLight);
        rightAxis.setTextColor(Color.RED);
        rightAxis.setAxisMaximum(900);
        rightAxis.setAxisMinimum(-200);
        rightAxis.setDrawGridLines(false);
        rightAxis.setDrawZeroLine(false);
        rightAxis.setGranularityEnabled(false);
    }

    private void setData(int count, float range) {

        ArrayList<Entry> values1 = new ArrayList<>();

        for (int i = 0; i < count; i++) {
            float val = (float) (Math.random() * (range / 2f)) + 50;
            values1.add(new Entry(i, val));
        }

        ArrayList<Entry> values2 = new ArrayList<>();

        for (int i = 0; i < count; i++) {
            float val = (float) (Math.random() * range) + 450;
            values2.add(new Entry(i, val));
        }

        ArrayList<Entry> values3 = new ArrayList<>();

        for (int i = 0; i < count; i++) {
            float val = (float) (Math.random() * range) + 500;
            values3.add(new Entry(i, val));
        }

        LineDataSet set1, set2, set3;

        if (chart.getData() != null &&
                chart.getData().getDataSetCount() > 0) {
            set1 = (LineDataSet) chart.getData().getDataSetByIndex(0);
            set2 = (LineDataSet) chart.getData().getDataSetByIndex(1);
            set3 = (LineDataSet) chart.getData().getDataSetByIndex(2);
            set1.setValues(values1);
            set2.setValues(values2);
            set3.setValues(values3);
            chart.getData().notifyDataChanged();
            chart.notifyDataSetChanged();
        } else {
            // create a dataset and give it a type
            set1 = new LineDataSet(values1, "DataSet 1");

            set1.setAxisDependency(AxisDependency.LEFT);
            set1.setColor(ColorTemplate.getHoloBlue());
            set1.setCircleColor(Color.WHITE);
            set1.setLineWidth(2f);
            set1.setCircleRadius(3f);
            set1.setFillAlpha(65);
            set1.setFillColor(ColorTemplate.getHoloBlue());
            set1.setHighLightColor(Color.rgb(244, 117, 117));
            set1.setDrawCircleHole(false);
            //set1.setFillFormatter(new MyFillFormatter(0f));
            //set1.setDrawHorizontalHighlightIndicator(false);
            //set1.setVisible(false);
            //set1.setCircleHoleColor(Color.WHITE);

            // create a dataset and give it a type
            set2 = new LineDataSet(values2, "DataSet 2");
            set2.setAxisDependency(AxisDependency.RIGHT);
            set2.setColor(Color.RED);
            set2.setCircleColor(Color.WHITE);
            set2.setLineWidth(2f);
            set2.setCircleRadius(3f);
            set2.setFillAlpha(65);
            set2.setFillColor(Color.RED);
            set2.setDrawCircleHole(false);
            set2.setHighLightColor(Color.rgb(244, 117, 117));
            //set2.setFillFormatter(new MyFillFormatter(900f));

            set3 = new LineDataSet(values3, "DataSet 3");
            set3.setAxisDependency(AxisDependency.RIGHT);
            set3.setColor(Color.YELLOW);
            set3.setCircleColor(Color.WHITE);
            set3.setLineWidth(2f);
            set3.setCircleRadius(3f);
            set3.setFillAlpha(65);
            set3.setFillColor(ColorTemplate.colorWithAlpha(Color.YELLOW, 200));
            set3.setDrawCircleHole(false);
            set3.setHighLightColor(Color.rgb(244, 117, 117));

            // create a data object with the data sets
            LineData data = new LineData(set1, set2, set3);
            data.setValueTextColor(Color.WHITE);
            data.setValueTextSize(9f);

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

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.line, 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/LineChartActivity2.java"));
                startActivity(i);
                break;
            }
            case R.id.actionToggleValues: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    set.setDrawValues(!set.isDrawValuesEnabled());
                }

                chart.invalidate();
                break;
            }
            case R.id.actionToggleHighlight: {
                if (chart.getData() != null) {
                    chart.getData().setHighlightEnabled(!chart.getData().isHighlightEnabled());
                    chart.invalidate();
                }
                break;
            }
            case R.id.actionToggleFilled: {

                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    if (set.isDrawFilledEnabled())
                        set.setDrawFilled(false);
                    else
                        set.setDrawFilled(true);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleCircles: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    if (set.isDrawCirclesEnabled())
                        set.setDrawCircles(false);
                    else
                        set.setDrawCircles(true);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleCubic: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    set.setMode(set.getMode() == LineDataSet.Mode.CUBIC_BEZIER
                            ? LineDataSet.Mode.LINEAR
                            : LineDataSet.Mode.CUBIC_BEZIER);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleStepped: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    set.setMode(set.getMode() == LineDataSet.Mode.STEPPED
                            ? LineDataSet.Mode.LINEAR
                            : LineDataSet.Mode.STEPPED);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleHorizontalCubic: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    set.setMode(set.getMode() == LineDataSet.Mode.HORIZONTAL_BEZIER
                            ? LineDataSet.Mode.LINEAR
                            : LineDataSet.Mode.HORIZONTAL_BEZIER);
                }
                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.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
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

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

        setData(seekBarX.getProgress(), seekBarY.getProgress());

        // redraw
        chart.invalidate();
    }

    @Override
    protected void saveToGallery() {
        saveToGallery(chart, "LineChartActivity2");
    }

    @Override
    public void onValueSelected(Entry e, Highlight h) {
        Log.i("Entry selected", e.toString());

        chart.centerViewToAnimated(e.getX(), e.getY(), chart.getData().getDataSetByIndex(h.getDataSetIndex())
                .getAxisDependency(), 500);
        //chart.zoomAndCenterAnimated(2.5f, 2.5f, e.getX(), e.getY(), chart.getData().getDataSetByIndex(dataSetIndex)
        // .getAxisDependency(), 1000);
        //chart.zoomAndCenterAnimated(1.8f, 1.8f, e.getX(), e.getY(), chart.getData().getDataSetByIndex(dataSetIndex)
        // .getAxisDependency(), 1000);
    }

    @Override
    public void onNothingSelected() {
        Log.i("Nothing selected", "Nothing selected.");
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {}

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