BollingerBandIndicator<T, D> class
This class has the property of bollinger band indicator.
This indicator also has upperLineColor, lowerLineColor property for defining the brushes for the indicator lines. Also, we can specify standard deviation values for the BollingerBandIndicator using standardDeviation property.
Provides options for series visible, axis name, series name, animation duration, legend visibility, band color to customize the appearance.
- Inheritance
-
- Object
- TechnicalIndicator<
T, D> - BollingerBandIndicator
- Annotations
Constructors
-
BollingerBandIndicator({bool isVisible = true, String? xAxisName, String? yAxisName, String? seriesName, List<
double> dashArray = const <double>[0, 0], double animationDuration = 1500, double animationDelay = 0, List<T> ? dataSource, ChartValueMapper<T, D> ? xValueMapper, ChartValueMapper<T, num> ? closeValueMapper, String? name, bool isVisibleInLegend = true, LegendIconType legendIconType = LegendIconType.seriesType, String? legendItemText, Color signalLineColor = Colors.blue, double signalLineWidth = 2, int period = 14, int standardDeviation = 2, Color upperLineColor = Colors.red, double upperLineWidth = 2, Color lowerLineColor = Colors.green, double lowerLineWidth = 2, Color bandColor = const Color(0x409e9e9e), ChartIndicatorRenderCallback? onRenderDetailsUpdate}) - Creating an argument constructor of BollingerBandIndicator class.
Properties
- animationDelay → double
-
Delay duration of the technical indicator's animation.
It takes a millisecond value as input.
By default, the technical indicator will get animated for the specified
duration. If animationDelay is specified, then the technical indicator
will begin to animate after the specified duration.
finalinherited
- animationDuration → double
-
Animation duration for the technical indicators.
finalinherited
- bandColor → Color
-
Band color of the bollinger band.
final
-
closeValueMapper
→ ChartIndexedValueMapper<
num?> ? -
Value mapper to map the close values with technical indicators.
finalinherited
-
dashArray
→ List<
double> -
Property to provide dash array for the technical indicators.
finalinherited
-
dataSource
→ List<
T> ? -
Property to provide data for the technical indicators without any series.
finalinherited
- hashCode → int
-
The hash code for this object.
no setteroverride
-
highValueMapper
→ ChartIndexedValueMapper<
num?> ? -
Value mapper to map the high values with technical indicators.
finalinherited
- isVisible → bool
-
Boolean property to change the visibility of the technical indicators.
finalinherited
- isVisibleInLegend → bool
-
Boolean property to determine the rendering of legends for the
technical indicators.
finalinherited
- legendIconType → LegendIconType
-
Property to provide icon type for the technical indicators legend.
finalinherited
- legendItemText → String?
-
Property to provide the text for the technical indicators legend.
finalinherited
- lowerLineColor → Color
-
Lower line color value of the bollinger band.
final
- lowerLineWidth → double
-
Lower line width value of the bollinger band.
final
-
lowValueMapper
→ ChartIndexedValueMapper<
num?> ? -
Value mapper to map the low values with technical indicators.
finalinherited
- name → String?
-
Property to provide name for the technical indicators.
finalinherited
- onRenderDetailsUpdate → ChartIndicatorRenderCallback?
-
Callback which gets called while rendering the indicators.
finalinherited
-
openValueMapper
→ ChartIndexedValueMapper<
num?> ? -
Value mapper to map the open values with technical indicators.
finalinherited
- period → int
-
Period determines the start point for the rendering
of technical indicators.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- seriesName → String?
-
Property to link indicators to a series based on names.
finalinherited
- signalLineColor → Color
-
Property to provide the color of the signal line in the
technical indicators.
finalinherited
- signalLineWidth → double
-
Property to provide the width of the signal line in the
technical indicators.
finalinherited
- standardDeviation → int
-
Standard deviation value of the bollinger band.
final
- upperLineColor → Color
-
Upper line color of the bollinger band.
final
- upperLineWidth → double
-
Upper line width value of the bollinger band.
final
-
volumeValueMapper
→ ChartIndexedValueMapper<
num?> ? -
Volume of series.
finalinherited
- xAxisName → String?
-
Property to map the technical indicators with the axes.
finalinherited
-
xValueMapper
→ ChartIndexedValueMapper<
D> ? -
Value mapper to map the x values with technical indicators.
finalinherited
- yAxisName → String?
-
Property to map the technical indicators with the axes.
finalinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override