package com.xxmassdeveloper.mpchartexample;
import android.graphics.Color;
import android.os.Bundle;
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.LineChart;
import com.github.mikephil.charting.components.AxisBase;
import com.github.mikephil.charting.components.Legend;
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.formatter.IAxisValueFormatter;
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet;
import com.github.mikephil.charting.utils.ColorTemplate;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
import java.sql.Time;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.concurrent.TimeUnit;
public class LineChartTime extends DemoBase implements OnSeekBarChangeListener {
private LineChart mChart;
private SeekBar mSeekBarX;
private TextView tvX;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_linechart_time);
tvX = (TextView) findViewById(R.id.tvXMax);
mSeekBarX = (SeekBar) findViewById(R.id.seekBar1);
mSeekBarX.setProgress(100);
tvX.setText("100");
mSeekBarX.setOnSeekBarChangeListener(this);
mChart = (LineChart) findViewById(R.id.chart1);
// no description text
mChart.getDescription().setEnabled(false);
// enable touch gestures
mChart.setTouchEnabled(true);
mChart.setDragDecelerationFrictionCoef(0.9f);
// enable scaling and dragging
mChart.setDragEnabled(true);
mChart.setScaleEnabled(true);
mChart.setDrawGridBackground(false);
mChart.setHighlightPerDragEnabled(true);
// set an alternative background color
mChart.setBackgroundColor(Color.WHITE);
mChart.setViewPortOffsets(0f, 0f, 0f, 0f);
// add data
setData(100, 30);
mChart.invalidate();
// get the legend (only possible after setting data)
Legend l = mChart.getLegend();
l.setEnabled(false);
XAxis xAxis = mChart.getXAxis();
xAxis.setPosition(XAxis.XAxisPosition.TOP_INSIDE);
xAxis.setTypeface(mTfLight);
xAxis.setTextSize(10f);
xAxis.setTextColor(Color.WHITE);
xAxis.setDrawAxisLine(false);
xAxis.setDrawGridLines(true);
xAxis.setTextColor(Color.rgb(255, 192, 56));
xAxis.setCenterAxisLabels(true);
xAxis.setGranularity(1f); // one hour
xAxis.setValueFormatter(new IAxisValueFormatter() {
private SimpleDateFormat mFormat = new SimpleDateFormat("dd MMM HH:mm");
@Override
public String getFormattedValue(float value, AxisBase axis) {
long millis = TimeUnit.HOURS.toMillis((long) value);
return mFormat.format(new Date(millis));
}
});
YAxis leftAxis = mChart.getAxisLeft();
leftAxis.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
leftAxis.setTypeface(mTfLight);
leftAxis.setTextColor(ColorTemplate.getHoloBlue());
leftAxis.setDrawGridLines(true);
leftAxis.setGranularityEnabled(true);
leftAxis.setAxisMinimum(0f);
leftAxis.setAxisMaximum(170f);
leftAxis.setYOffset(-9f);
leftAxis.setTextColor(Color.rgb(255, 192, 56));
YAxis rightAxis = mChart.getAxisRight();
rightAxis.setEnabled(false);
}
@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.actionToggleValues: {
List<ILineDataSet> sets = mChart.getData()
.getDataSets();
for (ILineDataSet iSet : sets) {
LineDataSet set = (LineDataSet) iSet;
set.setDrawValues(!set.isDrawValuesEnabled());
}
mChart.invalidate();
break;
}
case R.id.actionToggleHighlight: {
if (mChart.getData() != null) {
mChart.getData().setHighlightEnabled(!mChart.getData().isHighlightEnabled());
mChart.invalidate();
}
break;
}
case R.id.actionToggleFilled: {
List<ILineDataSet> sets = mChart.getData()
.getDataSets();
for (ILineDataSet iSet : sets) {
LineDataSet set = (LineDataSet) iSet;
if (set.isDrawFilledEnabled())
set.setDrawFilled(false);
else
set.setDrawFilled(true);
}
mChart.invalidate();
break;
}
case R.id.actionToggleCircles: {
List<ILineDataSet> sets = mChart.getData()
.getDataSets();
for (ILineDataSet iSet : sets) {
LineDataSet set = (LineDataSet) iSet;
if (set.isDrawCirclesEnabled())
set.setDrawCircles(false);
else
set.setDrawCircles(true);
}
mChart.invalidate();
break;
}
case R.id.actionToggleCubic: {
List<ILineDataSet> sets = mChart.getData()
.getDataSets();
for (ILineDataSet iSet : sets) {
LineDataSet set = (LineDataSet) iSet;
if (set.getMode() == LineDataSet.Mode.CUBIC_BEZIER)
set.setMode(LineDataSet.Mode.LINEAR);
else
set.setMode(LineDataSet.Mode.CUBIC_BEZIER);
}
mChart.invalidate();
break;
}
case R.id.actionToggleStepped: {
List<ILineDataSet> sets = mChart.getData()
.getDataSets();
for (ILineDataSet iSet : sets) {
LineDataSet set = (LineDataSet) iSet;
if (set.getMode() == LineDataSet.Mode.STEPPED)
set.setMode(LineDataSet.Mode.LINEAR);
else
set.setMode(LineDataSet.Mode.STEPPED);
}
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.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.saveToPath("title" + System.currentTimeMillis(), "")) {
Toast.makeText(getApplicationContext(), "Saving SUCCESSFUL!",
Toast.LENGTH_SHORT).show();
} else
Toast.makeText(getApplicationContext(), "Saving FAILED!", Toast.LENGTH_SHORT)
.show();
// mChart.saveToGallery("title"+System.currentTimeMillis())
break;
}
}
return true;
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
tvX.setText("" + (mSeekBarX.getProgress()));
setData(mSeekBarX.getProgress(), 50);
// redraw
mChart.invalidate();
}
private void setData(int count, float range) {
// now in hours
long now = TimeUnit.MILLISECONDS.toHours(System.currentTimeMillis());
ArrayList<Entry> values = new ArrayList<Entry>();
float from = now;
// count = hours
float to = now + count;
// increment by 1 hour
for (float x = from; x < to; x++) {
float y = getRandom(range, 50);
values.add(new Entry(x, y)); // add one entry per hour
}
// create a dataset and give it a type
LineDataSet set1 = new LineDataSet(values, "DataSet 1");
set1.setAxisDependency(AxisDependency.LEFT);
set1.setColor(ColorTemplate.getHoloBlue());
set1.setValueTextColor(ColorTemplate.getHoloBlue());
set1.setLineWidth(1.5f);
set1.setDrawCircles(false);
set1.setDrawValues(false);
set1.setFillAlpha(65);
set1.setFillColor(ColorTemplate.getHoloBlue());
set1.setHighLightColor(Color.rgb(244, 117, 117));
set1.setDrawCircleHole(false);
// create a data object with the datasets
LineData data = new LineData(set1);
data.setValueTextColor(Color.WHITE);
data.setValueTextSize(9f);
// set data
mChart.setData(data);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}