package com.xxmassdeveloper.mpchartexample;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.text.SpannableString;
import android.text.style.ForegroundColorSpan;
import android.text.style.RelativeSizeSpan;
import android.text.style.StyleSpan;
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.animation.Easing;
import com.github.mikephil.charting.charts.PieChart;
import com.github.mikephil.charting.components.Legend;
import com.github.mikephil.charting.components.Legend.LegendPosition;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.data.PieData;
import com.github.mikephil.charting.data.PieDataSet;
import com.github.mikephil.charting.data.PieEntry;
import com.github.mikephil.charting.formatter.PercentFormatter;
import com.github.mikephil.charting.highlight.Highlight;
import com.github.mikephil.charting.interfaces.datasets.IDataSet;
import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
import com.github.mikephil.charting.utils.ColorTemplate;
import com.github.mikephil.charting.utils.MPPointF;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
import java.util.ArrayList;
public class PieChartActivity extends DemoBase implements OnSeekBarChangeListener,
OnChartValueSelectedListener {
private PieChart 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_piechart);
tvX = (TextView) findViewById(R.id.tvXMax);
tvY = (TextView) findViewById(R.id.tvYMax);
mSeekBarX = (SeekBar) findViewById(R.id.seekBar1);
mSeekBarY = (SeekBar) findViewById(R.id.seekBar2);
mSeekBarX.setProgress(4);
mSeekBarY.setProgress(10);
mChart = (PieChart) findViewById(R.id.chart1);
mChart.setUsePercentValues(true);
mChart.getDescription().setEnabled(false);
mChart.setExtraOffsets(5, 10, 5, 5);
mChart.setDragDecelerationFrictionCoef(0.95f);
mChart.setCenterTextTypeface(mTfLight);
mChart.setCenterText(generateCenterSpannableText());
mChart.setDrawHoleEnabled(true);
mChart.setHoleColor(Color.WHITE);
mChart.setTransparentCircleColor(Color.WHITE);
mChart.setTransparentCircleAlpha(110);
mChart.setHoleRadius(58f);
mChart.setTransparentCircleRadius(61f);
mChart.setDrawCenterText(true);
mChart.setRotationAngle(0);
// enable rotation of the chart by touch
mChart.setRotationEnabled(true);
mChart.setHighlightPerTapEnabled(true);
// mChart.setUnit(" €");
// mChart.setDrawUnitsInChart(true);
// add a selection listener
mChart.setOnChartValueSelectedListener(this);
setData(4, 100);
mChart.animateY(1400, Easing.EasingOption.EaseInOutQuad);
// mChart.spin(2000, 0, 360);
mSeekBarX.setOnSeekBarChangeListener(this);
mSeekBarY.setOnSeekBarChangeListener(this);
Legend l = mChart.getLegend();
l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
l.setOrientation(Legend.LegendOrientation.VERTICAL);
l.setDrawInside(false);
l.setXEntrySpace(7f);
l.setYEntrySpace(0f);
l.setYOffset(0f);
// entry label styling
mChart.setEntryLabelColor(Color.WHITE);
mChart.setEntryLabelTypeface(mTfRegular);
mChart.setEntryLabelTextSize(12f);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.pie, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.actionToggleValues: {
for (IDataSet<?> set : mChart.getData().getDataSets())
set.setDrawValues(!set.isDrawValuesEnabled());
mChart.invalidate();
break;
}
case R.id.actionToggleIcons: {
for (IDataSet<?> set : mChart.getData().getDataSets())
set.setDrawIcons(!set.isDrawIconsEnabled());
mChart.invalidate();
break;
}
case R.id.actionToggleHole: {
if (mChart.isDrawHoleEnabled())
mChart.setDrawHoleEnabled(false);
else
mChart.setDrawHoleEnabled(true);
mChart.invalidate();
break;
}
case R.id.actionDrawCenter: {
if (mChart.isDrawCenterTextEnabled())
mChart.setDrawCenterText(false);
else
mChart.setDrawCenterText(true);
mChart.invalidate();
break;
}
case R.id.actionToggleXVals: {
mChart.setDrawEntryLabels(!mChart.isDrawEntryLabelsEnabled());
mChart.invalidate();
break;
}
case R.id.actionSave: {
// mChart.saveToGallery("title"+System.currentTimeMillis());
mChart.saveToPath("title" + System.currentTimeMillis(), "");
break;
}
case R.id.actionTogglePercent:
mChart.setUsePercentValues(!mChart.isUsePercentValuesEnabled());
mChart.invalidate();
break;
case R.id.animateX: {
mChart.animateX(1400);
break;
}
case R.id.animateY: {
mChart.animateY(1400);
break;
}
case R.id.animateXY: {
mChart.animateXY(1400, 1400);
break;
}
case R.id.actionToggleSpin: {
mChart.spin(1000, mChart.getRotationAngle(), mChart.getRotationAngle() + 360, Easing.EasingOption
.EaseInCubic);
break;
}
}
return true;
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
tvX.setText("" + (mSeekBarX.getProgress()));
tvY.setText("" + (mSeekBarY.getProgress()));
setData(mSeekBarX.getProgress(), mSeekBarY.getProgress());
}
private void setData(int count, float range) {
float mult = range;
ArrayList<PieEntry> entries = new ArrayList<PieEntry>();
// NOTE: The order of the entries when being added to the entries array determines their position around the center of
// the chart.
for (int i = 0; i < count ; i++) {
entries.add(new PieEntry((float) ((Math.random() * mult) + mult / 5),
mParties[i % mParties.length],
getResources().getDrawable(R.drawable.star)));
}
PieDataSet dataSet = new PieDataSet(entries, "Election Results");
dataSet.setDrawIcons(false);
dataSet.setSliceSpace(3f);
dataSet.setIconsOffset(new MPPointF(0, 40));
dataSet.setSelectionShift(5f);
// add a lot of colors
ArrayList<Integer> colors = new ArrayList<Integer>();
for (int c : ColorTemplate.VORDIPLOM_COLORS)
colors.add(c);
for (int c : ColorTemplate.JOYFUL_COLORS)
colors.add(c);
for (int c : ColorTemplate.COLORFUL_COLORS)
colors.add(c);
for (int c : ColorTemplate.LIBERTY_COLORS)
colors.add(c);
for (int c : ColorTemplate.PASTEL_COLORS)
colors.add(c);
colors.add(ColorTemplate.getHoloBlue());
dataSet.setColors(colors);
//dataSet.setSelectionShift(0f);
PieData data = new PieData(dataSet);
data.setValueFormatter(new PercentFormatter());
data.setValueTextSize(11f);
data.setValueTextColor(Color.WHITE);
data.setValueTypeface(mTfLight);
mChart.setData(data);
// undo all highlights
mChart.highlightValues(null);
mChart.invalidate();
}
private SpannableString generateCenterSpannableText() {
SpannableString s = new SpannableString("MPAndroidChart\ndeveloped by Philipp Jahoda");
s.setSpan(new RelativeSizeSpan(1.7f), 0, 14, 0);
s.setSpan(new StyleSpan(Typeface.NORMAL), 14, s.length() - 15, 0);
s.setSpan(new ForegroundColorSpan(Color.GRAY), 14, s.length() - 15, 0);
s.setSpan(new RelativeSizeSpan(.8f), 14, s.length() - 15, 0);
s.setSpan(new StyleSpan(Typeface.ITALIC), s.length() - 14, s.length(), 0);
s.setSpan(new ForegroundColorSpan(ColorTemplate.getHoloBlue()), s.length() - 14, s.length(), 0);
return s;
}
@Override
public void onValueSelected(Entry e, Highlight h) {
if (e == null)
return;
Log.i("VAL SELECTED",
"Value: " + e.getY() + ", index: " + h.getX()
+ ", DataSet index: " + h.getDataSetIndex());
}
@Override
public void onNothingSelected() {
Log.i("PieChart", "nothing selected");
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}