Android Chart - Examples
SciChart Android ships with ~90 Android Chart Examples which you can browse, play with, view the source-code and even export each SciChart Android Chart Example to a stand-alone Android Studio project. All of this is possible with the new and improved SciChart Android Examples Suite, which ships as part of our Android Charts SDK.
Demonstrates how to add Error Bars to an Android Line or Scatter Chart. There are two Error Bar Series types in SciChart Android:
- FastErrorBarsRenderableSeries which can render HlDataSeries or OhlcDataSeries
- FastFixedErrorBarsRenderableSeries which can be used to render an XyDataSeries (which contains one X-point and one Y-point), XyyDataSeries (renders Y values), XyzDataSeries, HlDataSeries and OhlcDataSeries (renders Close values). Error values are fixed and specified by calling setErrorLow() and setErrorHigh() methods.
Tip!
Read the Error Bars documentation to find out more about this Android Chart Type.
Do you need to change the width of a error bar? Try calling the setDataPointWidth() method passing in any number from 0.0 to 1.0. This alters how much space the bar takes up.
The full source code for the Android Error Bars Chart example is included below (Scroll down!).
Did you know you can also view the source code from one of the following sources as well?
- Clone the SciChart.Android.Examples from Github.
- Or, view source and export each example to an Android Studio project from the Java version of the SciChart Android Examples app.
- Also the SciChart Android Trial contains the full source for the examples (link below).
Kotlin: ErrorBarsChartFragment.kt
View source code//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2021. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales: sales@scichart.com
//
// ErrorBarsChartFragment.kt is part of SCICHART®, High Performance Scientific Charts
// For full terms and conditions of the license, see http://www.scichart.com/scichart-eula/
//
// This source code is protected by international copyright law. Unauthorized
// reproduction, reverse-engineering, or distribution of all or any portion of
// this source code is strictly prohibited.
//
// This source code contains confidential and proprietary trade secrets of
// SciChart Ltd., and should at no time be copied, transferred, sold,
// distributed or made available without express written permission.
//******************************************************************************
package com.scichart.examples.fragments.examples2d.multiChart.kt
import android.view.animation.LinearInterpolator
import android.widget.SeekBar
import com.scichart.charting.model.dataSeries.HlDataSeries
import com.scichart.charting.visuals.SciChartSurface
import com.scichart.charting.visuals.renderableSeries.ErrorDirection.Vertical
import com.scichart.charting.visuals.renderableSeries.ErrorType.Absolute
import com.scichart.charting.visuals.renderableSeries.FastErrorBarsRenderableSeries
import com.scichart.examples.R
import com.scichart.examples.data.DataManager
import com.scichart.examples.data.DoubleSeries
import com.scichart.examples.fragments.base.ExampleSingleChartBaseFragment
import com.scichart.examples.utils.SeekBarChangeListenerBase
import com.scichart.examples.utils.ViewSettingsUtil
import com.scichart.examples.utils.interpolator.DefaultInterpolator
import com.scichart.examples.utils.interpolator.ElasticOutInterpolator
import com.scichart.examples.utils.scichartExtensions.*
import com.scichart.examples.utils.widgetgeneration.ImageViewWidget
import com.scichart.examples.utils.widgetgeneration.Widget
import java.util.*
class ErrorBarsChartFragment : ExampleSingleChartBaseFragment() {
override fun showDefaultModifiersInToolbar(): Boolean = false
override fun getToolbarItems(): List<Widget> = ArrayList<Widget>().apply {
add(ImageViewWidget.Builder().setId(R.drawable.example_toolbar_settings).setListener { openSettingsDialog() }.build())
}
override fun initExample(surface: SciChartSurface) {
surface.theme = R.style.SciChart_NavyBlue
val data = DataManager.getInstance().getFourierSeries(1.0, 0.1, 5.0, 5.15, 5000)
val dataSeries0 = HlDataSeries<Double, Double>().apply { fillSeries(this, data,1.0) }
val dataSeries1 = HlDataSeries<Double, Double>().apply { fillSeries(this, data,1.3) }
val color = 0xFFC6E6FF
surface.suspendUpdates {
xAxes { numericAxis() }
yAxes { numericAxis() }
renderableSeries {
fastErrorBarsRenderableSeries {
dataSeries = dataSeries0
strokeStyle = SolidPenStyle(color)
errorDirection = Vertical
errorType = Absolute
waveAnimation {
zeroLine = 2.5
duration = 500
startDelay = 100
interpolator = DefaultInterpolator.getInterpolator()
}
}
fastLineRenderableSeries {
dataSeries = dataSeries0
strokeStyle = SolidPenStyle(color)
ellipsePointMarker {
setSize(5)
fillStyle = SolidBrushStyle(color)
}
// scaleAnimation { interpolator = ElasticOutInterpolator() }
}
fastErrorBarsRenderableSeries {
dataSeries = dataSeries1
strokeStyle = SolidPenStyle(color)
errorDirection = Vertical
errorType = Absolute
scaleAnimation {
zeroLine = 3.5
duration = 500
startDelay = 600
interpolator = DefaultInterpolator.getInterpolator()
}
}
xyScatterRenderableSeries {
dataSeries = dataSeries1
ellipsePointMarker {
setSize(7)
fillStyle = SolidBrushStyle(0x00FFFFFF)
strokeStyle = SolidPenStyle(color)
}
// scaleAnimation { interpolator = ElasticOutInterpolator() }
}
}
chartModifiers { defaultModifiers() }
}
}
private fun fillSeries(dataSeries: HlDataSeries<Double, Double>, sourceData: DoubleSeries, scale: Double) {
val xValues = sourceData.xValues
val yValues = sourceData.yValues
val random = Random()
for (i in 0 until xValues.size()) {
val y = yValues[i] * scale
dataSeries.append(xValues[i], y, random.nextDouble() * 0.2, random.nextDouble() * 0.2)
}
}
private fun openSettingsDialog() {
val dialog = ViewSettingsUtil.createSettingsPopup(activity, R.layout.example_error_bars_chart_popop_layout)
ViewSettingsUtil.setUpSeekBar(dialog, R.id.data_point_width_seek_bar, 50, object : SeekBarChangeListenerBase() {
override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
onDataPointWidthChanged(progress)
}
})
ViewSettingsUtil.setUpSeekBar(dialog, R.id.stroke_thickness_seek_bar, 1, object : SeekBarChangeListenerBase() {
override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
onStrokeThicknessChanged(progress + 1)
}
})
dialog.show()
}
private fun onDataPointWidthChanged(dataPointWidth: Int) {
binding.surface.suspendUpdates {
(renderableSeries[2] as FastErrorBarsRenderableSeries).dataPointWidth = (dataPointWidth / 100f).toDouble()
(renderableSeries[3] as FastErrorBarsRenderableSeries).dataPointWidth = (dataPointWidth / 100f).toDouble()
}
}
private fun onStrokeThicknessChanged(strokeThickness: Int) {
binding.surface.suspendUpdates {
for (i in renderableSeries.indices) {
renderableSeries[i].run {
val currentStyle = strokeStyle
strokeStyle = SolidPenStyle(currentStyle.color, strokeThickness.toFloat(), currentStyle.antiAliasing)
}
}
}
}
}Java: ErrorBarsChartFragment.java
View source code//******************************************************************************
// SCICHART® Copyright SciChart Ltd. 2011-2021. All rights reserved.
//
// Web: http://www.scichart.com
// Support: support@scichart.com
// Sales: sales@scichart.com
//
// ErrorBarsChartFragment.java is part of SCICHART®, High Performance Scientific Charts
// For full terms and conditions of the license, see http://www.scichart.com/scichart-eula/
//
// This source code is protected by international copyright law. Unauthorized
// reproduction, reverse-engineering, or distribution of all or any portion of
// this source code is strictly prohibited.
//
// This source code contains confidential and proprietary trade secrets of
// SciChart Ltd., and should at no time be copied, transferred, sold,
// distributed or made available without express written permission.
//******************************************************************************
package com.scichart.examples.fragments.examples2d.multiChart;
import android.app.Dialog;
import android.view.animation.LinearInterpolator;
import android.widget.SeekBar;
import androidx.annotation.NonNull;
import com.scichart.charting.model.dataSeries.HlDataSeries;
import com.scichart.charting.visuals.SciChartSurface;
import com.scichart.charting.visuals.pointmarkers.EllipsePointMarker;
import com.scichart.charting.visuals.renderableSeries.ErrorDirection;
import com.scichart.charting.visuals.renderableSeries.ErrorType;
import com.scichart.charting.visuals.renderableSeries.FastErrorBarsRenderableSeries;
import com.scichart.charting.visuals.renderableSeries.FastLineRenderableSeries;
import com.scichart.charting.visuals.renderableSeries.IRenderableSeries;
import com.scichart.charting.visuals.renderableSeries.XyScatterRenderableSeries;
import com.scichart.core.framework.UpdateSuspender;
import com.scichart.core.model.DoubleValues;
import com.scichart.drawing.common.PenStyle;
import com.scichart.examples.R;
import com.scichart.examples.data.DataManager;
import com.scichart.examples.data.DoubleSeries;
import com.scichart.examples.fragments.base.ExampleSingleChartBaseFragment;
import com.scichart.examples.utils.SeekBarChangeListenerBase;
import com.scichart.examples.utils.ViewSettingsUtil;
import com.scichart.examples.utils.interpolator.DefaultInterpolator;
import com.scichart.examples.utils.interpolator.ElasticOutInterpolator;
import com.scichart.examples.utils.widgetgeneration.ImageViewWidget;
import com.scichart.examples.utils.widgetgeneration.Widget;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;
public class ErrorBarsChartFragment extends ExampleSingleChartBaseFragment {
@Override
public boolean showDefaultModifiersInToolbar() {
return false;
}
@NonNull
@Override
public List<Widget> getToolbarItems() {
return new ArrayList<Widget>() {{
add(new ImageViewWidget.Builder().setId(R.drawable.example_toolbar_settings).setListener(v -> openSettingsDialog()).build());
}};
}
@Override
protected void initExample(@NonNull SciChartSurface surface) {
surface.setTheme(R.style.SciChart_NavyBlue);
final HlDataSeries<Double, Double> dataSeries0 = new HlDataSeries<>(Double.class, Double.class);
final HlDataSeries<Double, Double> dataSeries1 = new HlDataSeries<>(Double.class, Double.class);
DoubleSeries data = DataManager.getInstance().getFourierSeries(1.0, 0.1, 5.0, 5.15, 5000);
fillSeries(dataSeries0, data, 1.0);
fillSeries(dataSeries1, data, 1.3);
final int color = 0xFFC6E6FF;
final FastErrorBarsRenderableSeries errorBars0 = sciChartBuilder.newErrorBarsSeries()
.withDataSeries(dataSeries0)
.withStrokeStyle(color, 1f)
.withErrorDirection(ErrorDirection.Vertical)
.withErrorType(ErrorType.Absolute)
.build();
final FastLineRenderableSeries lineSeries = sciChartBuilder.newLineSeries()
.withDataSeries(dataSeries0)
.withStrokeStyle(color, 1f)
.withPointMarker(sciChartBuilder.newPointMarker(new EllipsePointMarker()).withSize(5, 5).withFill(color).build())
.build();
final FastErrorBarsRenderableSeries errorBars1 = sciChartBuilder.newErrorBarsSeries()
.withDataSeries(dataSeries1)
.withStrokeStyle(color, 1f)
.withErrorDirection(ErrorDirection.Vertical)
.withErrorType(ErrorType.Absolute)
.build();
final XyScatterRenderableSeries scatterSeries = sciChartBuilder.newScatterSeries()
.withDataSeries(dataSeries1)
.withPointMarker(sciChartBuilder.newPointMarker(new EllipsePointMarker()).withSize(7, 7).withFill(0x00FFFFFF).withStroke(color, 1f).build())
.build();
UpdateSuspender.using(surface, () -> {
Collections.addAll(surface.getXAxes(), sciChartBuilder.newNumericAxis().build());
Collections.addAll(surface.getYAxes(), sciChartBuilder.newNumericAxis().build());
Collections.addAll(surface.getRenderableSeries(), lineSeries, scatterSeries, errorBars0, errorBars1);
Collections.addAll(surface.getChartModifiers(), sciChartBuilder.newModifierGroupWithDefaultModifiers().build());
sciChartBuilder.newAnimator(errorBars0).withWaveTransformation(2.5).withInterpolator(DefaultInterpolator.getInterpolator()).withDuration(500).withStartDelay(100).start();
// sciChartBuilder.newAnimator(lineSeries).withSweepTransformation().withInterpolator(new LinearInterpolator()).withDuration(3000).withStartDelay(350).start();
sciChartBuilder.newAnimator(errorBars1).withScaleTransformation(3.5).withInterpolator(DefaultInterpolator.getInterpolator()).withDuration(500).withStartDelay(600).start();
// sciChartBuilder.newAnimator(scatterSeries).withSweepTransformation().withInterpolator(new LinearInterpolator()).withDuration(3000).withStartDelay(350).start();
});
}
private void fillSeries(HlDataSeries<Double, Double> dataSeries, DoubleSeries sourceData, final double scale) {
final DoubleValues xValues = sourceData.xValues;
final DoubleValues yValues = sourceData.yValues;
final Random random = new Random();
for (int i = 0; i < xValues.size(); i++) {
final double y = yValues.get(i) * scale;
dataSeries.append(xValues.get(i), y, random.nextDouble() * 0.2, random.nextDouble() * 0.2);
}
}
private void openSettingsDialog() {
final Dialog dialog = ViewSettingsUtil.createSettingsPopup(getActivity(), R.layout.example_error_bars_chart_popop_layout);
ViewSettingsUtil.setUpSeekBar(dialog, R.id.data_point_width_seek_bar, 50, new SeekBarChangeListenerBase() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
onDataPointWidthChanged(progress);
}
});
ViewSettingsUtil.setUpSeekBar(dialog, R.id.stroke_thickness_seek_bar, 1, new SeekBarChangeListenerBase() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
onStrokeThicknessChanged(progress + 1);
}
});
dialog.show();
}
private void onDataPointWidthChanged(final int dataPointWidth) {
final SciChartSurface surface = binding.surface;
UpdateSuspender.using(surface, () -> {
((FastErrorBarsRenderableSeries) surface.getRenderableSeries().get(2)).setDataPointWidth(dataPointWidth / 100f);
((FastErrorBarsRenderableSeries) surface.getRenderableSeries().get(3)).setDataPointWidth(dataPointWidth / 100f);
});
}
private void onStrokeThicknessChanged(final int strokeThickness) {
final SciChartSurface surface = binding.surface;
UpdateSuspender.using(surface, () -> {
for (int i = 0; i < surface.getRenderableSeries().size(); i++) {
IRenderableSeries renderableSeries = surface.getRenderableSeries().get(i);
final PenStyle currentStyle = renderableSeries.getStrokeStyle();
renderableSeries.setStrokeStyle(sciChartBuilder.newPen()
.withColor(currentStyle.getColor())
.withAntiAliasing(currentStyle.antiAliasing)
.withThickness(strokeThickness)
.build());
}
});
}
}
