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.
Generates an Android Digital (step) Band Series by calling the setIsDigitalLine(True). The FastBandRenderableSeries requires an XyyDataSeries, which contains one X-point and two Y-points.
Dual lines are drawn using the pen set by the setStrokeStyle(PenStyle), setStrokeY1Style(PenStyle) methods, and shaded bands are drawn using setFillBrushStyle(BrushStyle) and setFillY1BrushStyle(BrushStyle), depending on whether Y1 is greater than Y2.
The Step Band Series can be used to display:
– Envelopes
– Profit & Loss
– Warnings, such as when a value is above a threshold.
Tips!
To create a Digital Band Series, call the setIsDigitalLine() method.
If you have data where Y1 is greater than Y2 always, you’ll get an envelope effect. Great for rendering confidence intervals, error margins or Bollinger Bands!
Band Series can be used to create a Fan Chart.
The full source code for the Android Digital Band 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: DigitalBandChartFragment.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
//
// DigitalBandChartFragment.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.basicChartTypes.kt
import android.view.animation.DecelerateInterpolator
import com.scichart.charting.visuals.SciChartSurface
import com.scichart.data.model.DoubleRange
import com.scichart.examples.data.DataManager
import com.scichart.examples.fragments.base.ExampleSingleChartBaseFragment
import com.scichart.examples.utils.Constant
import com.scichart.examples.utils.interpolator.DefaultInterpolator
import com.scichart.examples.utils.scichartExtensions.*
class DigitalBandChartFragment : ExampleSingleChartBaseFragment() {
override fun initExample(surface: SciChartSurface) {
val data = DataManager.getInstance().getDampedSinewave(1.0, 0.01, 1000, 10)
val moreData = DataManager.getInstance().getDampedSinewave(1.0, 0.005, 1000, 12)
surface.suspendUpdates {
xAxes { numericAxis { visibleRange = DoubleRange(1.1, 2.7) } }
yAxes { numericAxis { growBy = DoubleRange(0.1, 0.1) } }
renderableSeries {
fastBandRenderableSeries {
setIsDigitalLine(true)
xyyDataSeries<Double, Double> {
append(data.xValues, data.yValues, moreData.yValues)
}
fillBrushStyle = SolidBrushStyle(0x33F48420)
fillY1BrushStyle = SolidBrushStyle(0x3350C7E0)
strokeStyle = SolidPenStyle(0xFFF48420)
strokeY1Style = SolidPenStyle(0xFF50C7E0)
scaleAnimation {
duration = Constant.ANIMATION_DURATION
startDelay = Constant.ANIMATION_START_DELAY
interpolator = DefaultInterpolator.getInterpolator()
}
}
}
chartModifiers { defaultModifiers() }
}
}
}Java: DigitalBandChartFragment.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
//
// DigitalBandChartFragment.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.basicChartTypes;
import android.view.animation.DecelerateInterpolator;
import androidx.annotation.NonNull;
import com.scichart.charting.model.dataSeries.XyyDataSeries;
import com.scichart.charting.visuals.SciChartSurface;
import com.scichart.charting.visuals.axes.IAxis;
import com.scichart.charting.visuals.renderableSeries.FastBandRenderableSeries;
import com.scichart.core.framework.UpdateSuspender;
import com.scichart.examples.data.DataManager;
import com.scichart.examples.data.DoubleSeries;
import com.scichart.examples.fragments.base.ExampleSingleChartBaseFragment;
import com.scichart.examples.utils.Constant;
import com.scichart.examples.utils.interpolator.DefaultInterpolator;
import java.util.Collections;
public class DigitalBandChartFragment extends ExampleSingleChartBaseFragment {
@Override
protected void initExample(@NonNull SciChartSurface surface) {
final IAxis xAxis = sciChartBuilder.newNumericAxis().withVisibleRange(1.1, 2.7).build();
final IAxis yAxis = sciChartBuilder.newNumericAxis().withGrowBy(0.1, 0.1).build();
final DoubleSeries data = DataManager.getInstance().getDampedSinewave(1.0, 0.01, 1000, 10);
final DoubleSeries moreData = DataManager.getInstance().getDampedSinewave(1.0, 0.005, 1000, 12);
final XyyDataSeries<Double, Double> dataSeries = sciChartBuilder.newXyyDataSeries(Double.class, Double.class).build();
dataSeries.append(data.xValues, data.yValues, moreData.yValues);
final FastBandRenderableSeries rSeries = sciChartBuilder.newBandSeries()
.withDataSeries(dataSeries)
.withIsDigitalLine(true)
.withFillColor(0x33F48420).withFillY1Color(0x3350C7E0)
.withStrokeStyle(0xFFF48420, 1f, true).withStrokeY1Style(0xFF50C7E0, 1f, true)
.build();
UpdateSuspender.using(surface, () -> {
Collections.addAll(surface.getXAxes(), xAxis);
Collections.addAll(surface.getYAxes(), yAxis);
Collections.addAll(surface.getRenderableSeries(), rSeries);
Collections.addAll(surface.getChartModifiers(), sciChartBuilder.newModifierGroupWithDefaultModifiers().build());
sciChartBuilder.newAnimator(rSeries).withSweepTransformation().withInterpolator(DefaultInterpolator.getInterpolator()).withDuration(Constant.ANIMATION_DURATION).withStartDelay(Constant.ANIMATION_START_DELAY).start();
});
}
}
