package com.xxmassdeveloper.mpchartexample;
import android.graphics.Color;
import android.os.Bundle;
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 android.widget.Toast;
import com.github.mikephil.charting.charts.BarChart;
import com.github.mikephil.charting.components.Legend;
import com.github.mikephil.charting.components.Legend.LegendPosition;
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.data.Entry;
import com.github.mikephil.charting.highlight.Highlight;
import com.github.mikephil.charting.interfaces.datasets.IBarDataSet;
import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
import com.github.mikephil.charting.utils.ColorTemplate;
import com.xxmassdeveloper.mpchartexample.custom.MyAxisValueFormatter;
import com.xxmassdeveloper.mpchartexample.custom.MyValueFormatter;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
import java.util.ArrayList;
import java.util.List;
public class StackedBarActivity extends DemoBase implements OnSeekBarChangeListener, OnChartValueSelectedListener {
private BarChart mChart;
private SeekBar mSeekBarX, mSeekBarY;
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_barchart);
tvX = (TextView) findViewById(R.id.tvXMax);
tvY = (TextView) findViewById(R.id.tvYMax);
mSeekBarX = (SeekBar) findViewById(R.id.seekBar1);
mSeekBarX.setOnSeekBarChangeListener(this);
mSeekBarY = (SeekBar) findViewById(R.id.seekBar2);
mSeekBarY.setOnSeekBarChangeListener(this);
mChart = (BarChart) findViewById(R.id.chart1);
mChart.setOnChartValueSelectedListener(this);
mChart.getDescription().setEnabled(false);
// if more than 60 entries are displayed in the chart, no values will be
// drawn
mChart.setMaxVisibleValueCount(40);
// scaling can now only be done on x- and y-axis separately
mChart.setPinchZoom(false);
mChart.setDrawGridBackground(false);
mChart.setDrawBarShadow(false);
mChart.setDrawValueAboveBar(false);
mChart.setHighlightFullBarEnabled(false);
// change the position of the y-labels
YAxis leftAxis = mChart.getAxisLeft();
leftAxis.setValueFormatter(new MyAxisValueFormatter());
leftAxis.setAxisMinimum(0f); // this replaces setStartAtZero(true)
mChart.getAxisRight().setEnabled(false);
XAxis xLabels = mChart.getXAxis();
xLabels.setPosition(XAxisPosition.TOP);
// mChart.setDrawXLabels(false);
// mChart.setDrawYLabels(false);
// setting data
mSeekBarX.setProgress(12);
mSeekBarY.setProgress(100);
Legend l = mChart.getLegend();
l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM);
l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
l.setOrientation(Legend.LegendOrientation.HORIZONTAL);
l.setDrawInside(false);
l.setFormSize(8f);
l.setFormToTextSpace(4f);
l.setXEntrySpace(6f);
// mChart.setDrawLegend(false);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.bar, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.actionToggleValues: {
List<IBarDataSet> sets = mChart.getData()
.getDataSets();
for (IBarDataSet iSet : sets) {
BarDataSet set = (BarDataSet) iSet;
set.setDrawValues(!set.isDrawValuesEnabled());
}
mChart.invalidate();
break;
}
case R.id.actionToggleIcons: {
List<IBarDataSet> sets = mChart.getData()
.getDataSets();
for (IBarDataSet iSet : sets) {
BarDataSet set = (BarDataSet) iSet;
set.setDrawIcons(!set.isDrawIconsEnabled());
}
mChart.invalidate();
break;
}
case R.id.actionToggleHighlight: {
if (mChart.getData() != null) {
mChart.getData().setHighlightEnabled(!mChart.getData().isHighlightEnabled());
mChart.invalidate();
}
break;
}
case R.id.actionTogglePinch: {
if (mChart.isPinchZoomEnabled())
mChart.setPinchZoom(false);
else
mChart.setPinchZoom(true);
mChart.invalidate();
break;
}
case R.id.actionToggleAutoScaleMinMax: {
mChart.setAutoScaleMinMaxEnabled(!mChart.isAutoScaleMinMaxEnabled());
mChart.notifyDataSetChanged();
break;
}
case R.id.actionToggleBarBorders: {
for (IBarDataSet set : mChart.getData().getDataSets())
((BarDataSet) set).setBarBorderWidth(set.getBarBorderWidth() == 1.f ? 0.f : 1.f);
mChart.invalidate();
break;
}
case R.id.animateX: {
mChart.animateX(3000);
break;
}
case R.id.animateY: {
mChart.animateY(3000);
break;
}
case R.id.animateXY: {
mChart.animateXY(3000, 3000);
break;
}
case R.id.actionSave: {
if (mChart.saveToGallery("title" + System.currentTimeMillis(), 50)) {
Toast.makeText(getApplicationContext(), "Saving SUCCESSFUL!", Toast.LENGTH_SHORT).show();
} else
Toast.makeText(getApplicationContext(), "Saving FAILED!", Toast.LENGTH_SHORT).show();
break;
}
}
return true;
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
tvX.setText("" + (mSeekBarX.getProgress() + 1));
tvY.setText("" + (mSeekBarY.getProgress()));
ArrayList<BarEntry> yVals1 = new ArrayList<BarEntry>();
for (int i = 0; i < mSeekBarX.getProgress() + 1; i++) {
float mult = (mSeekBarY.getProgress() + 1);
float val1 = (float) (Math.random() * mult) + mult / 3;
float val2 = (float) (Math.random() * mult) + mult / 3;
float val3 = (float) (Math.random() * mult) + mult / 3;
yVals1.add(new BarEntry(
i,
new float[]{val1, val2, val3},
getResources().getDrawable(R.drawable.star)));
}
BarDataSet set1;
if (mChart.getData() != null &&
mChart.getData().getDataSetCount() > 0) {
set1 = (BarDataSet) mChart.getData().getDataSetByIndex(0);
set1.setValues(yVals1);
mChart.getData().notifyDataChanged();
mChart.notifyDataSetChanged();
} else {
set1 = new BarDataSet(yVals1, "Statistics Vienna 2014");
set1.setDrawIcons(false);
set1.setColors(getColors());
set1.setStackLabels(new String[]{"Births", "Divorces", "Marriages"});
ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
dataSets.add(set1);
BarData data = new BarData(dataSets);
data.setValueFormatter(new MyValueFormatter());
data.setValueTextColor(Color.WHITE);
mChart.setData(data);
}
mChart.setFitBars(true);
mChart.invalidate();
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onValueSelected(Entry e, Highlight h) {
BarEntry entry = (BarEntry) e;
if (entry.getYVals() != null)
Log.i("VAL SELECTED", "Value: " + entry.getYVals()[h.getStackIndex()]);
else
Log.i("VAL SELECTED", "Value: " + entry.getY());
}
@Override
public void onNothingSelected() {
// TODO Auto-generated method stub
}
private int[] getColors() {
int stacksize = 3;
// have as many colors as stack-values per entry
int[] colors = new int[stacksize];
for (int i = 0; i < colors.length; i++) {
colors[i] = ColorTemplate.MATERIAL_COLORS[i];
}
return colors;
}
}