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package com.xxmassdeveloper.mpchartexample;
import android.content.Intent;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.WindowManager;
import com.github.mikephil.charting.charts.BarChart;
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.data.BarData;
import com.github.mikephil.charting.data.BarDataSet;
import com.github.mikephil.charting.data.BarEntry;
import com.github.mikephil.charting.formatter.ValueFormatter;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
public class BarChartPositiveNegative extends DemoBase {
private BarChart chart;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_barchart_noseekbar);
setTitle("BarChartPositiveNegative");
chart = findViewById(R.id.chart1);
chart.setBackgroundColor(Color.WHITE);
chart.setExtraTopOffset(-30f);
chart.setExtraBottomOffset(10f);
chart.setExtraLeftOffset(70f);
chart.setExtraRightOffset(70f);
chart.setDrawBarShadow(false);
chart.setDrawValueAboveBar(true);
chart.getDescription().setEnabled(false);
// 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.setTypeface(tfRegular);
xAxis.setDrawGridLines(false);
xAxis.setDrawAxisLine(false);
xAxis.setTextColor(Color.LTGRAY);
xAxis.setTextSize(13f);
xAxis.setLabelCount(5);
xAxis.setCenterAxisLabels(true);
xAxis.setGranularity(1f);
YAxis left = chart.getAxisLeft();
left.setDrawLabels(false);
left.setSpaceTop(25f);
left.setSpaceBottom(25f);
left.setDrawAxisLine(false);
left.setDrawGridLines(false);
left.setDrawZeroLine(true); // draw a zero line
left.setZeroLineColor(Color.GRAY);
left.setZeroLineWidth(0.7f);
chart.getAxisRight().setEnabled(false);
chart.getLegend().setEnabled(false);
// THIS IS THE ORIGINAL DATA YOU WANT TO PLOT
final List<Data> data = new ArrayList<>();
data.add(new Data(0f, -224.1f, "12-29"));
data.add(new Data(1f, 238.5f, "12-30"));
data.add(new Data(2f, 1280.1f, "12-31"));
data.add(new Data(3f, -442.3f, "01-01"));
data.add(new Data(4f, -2280.1f, "01-02"));
xAxis.setValueFormatter(new ValueFormatter() {
@Override
public String getFormattedValue(float value) {
return data.get(Math.min(Math.max((int) value, 0), data.size()-1)).xAxisValue;
}
});
setData(data);
}
private void setData(List<Data> dataList) {
ArrayList<BarEntry> values = new ArrayList<>();
List<Integer> colors = new ArrayList<>();
int green = Color.rgb(110, 190, 102);
int red = Color.rgb(211, 74, 88);
for (int i = 0; i < dataList.size(); i++) {
Data d = dataList.get(i);
BarEntry entry = new BarEntry(d.xValue, d.yValue);
values.add(entry);
// specific colors
if (d.yValue >= 0)
colors.add(red);
else
colors.add(green);
}
BarDataSet set;
if (chart.getData() != null &&
chart.getData().getDataSetCount() > 0) {
set = (BarDataSet) chart.getData().getDataSetByIndex(0);
set.setValues(values);
chart.getData().notifyDataChanged();
chart.notifyDataSetChanged();
} else {
set = new BarDataSet(values, "Values");
set.setColors(colors);
set.setValueTextColors(colors);
BarData data = new BarData(set);
data.setValueTextSize(13f);
data.setValueTypeface(tfRegular);
data.setValueFormatter(new Formatter());
data.setBarWidth(0.8f);
chart.setData(data);
chart.invalidate();
}
}
/**
* Demo class representing data.
*/
private class Data {
final String xAxisValue;
final float yValue;
final float xValue;
Data(float xValue, float yValue, String xAxisValue) {
this.xAxisValue = xAxisValue;
this.yValue = yValue;
this.xValue = xValue;
}
}
private class Formatter extends ValueFormatter
{
private final DecimalFormat mFormat;
Formatter() {
mFormat = new DecimalFormat("######.0");
}
@Override
public String getFormattedValue(float value) {
return mFormat.format(value);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.only_github, 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/BarChartPositiveNegative.java"));
startActivity(i);
break;
}
}
return true;
}
@Override
public void saveToGallery() { /* Intentionally left empty */ }
}
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