Responsive class
Lets you define alternate widgets for different screen sizes.
Different constructors are provided for different use cases. Use Responsive.builder to create a Responsive from a ResponsiveBuilder. Use Responsive.withShared to create a Responsive from a ResponsiveBuilderWithShared to share a Widget between different ResponsiveFormats.
A Screen is considered to be ResponsiveFormat.mobile if the screen width is below the lowerBound (default: 850px). A Screen is considered to be ResponsiveFormat.desktop if the screen width is equal or above the upperBound (default: 1550px). Anything in between is considered a ResponsiveFormat.tablet screen. To customize this behavior, you may override the upperBound and/or lowerBound static properties as well as the isMobile, isDesktop and isTablet static methods.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- Responsive
Constructors
- Responsive({Key? key, Widget? onMobile, Widget? onTablet, Widget? onDesktop, ResponsiveFormat? preferredTabletFormat})
-
Creates a Responsive Widget which returns on of the provided
onMobile
,onTablet
oronDesktop
Widgets based on the current ResponsiveFormat. - Responsive.builder({ResponsiveBuilder? onMobile, ResponsiveBuilder? onTablet, ResponsiveBuilder? onDesktop, ResponsiveFormat? preferredTabletFormat})
-
Creates a Responsive Widget which returns either of the provided
onMobile
,onTablet
oronDesktop
Widgets based on the current ResponsiveFormat.
Properties
Methods
-
build(
BuildContext context) → Widget -
the widget build method which returns the chosen Widget.
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNode
objects describing this node's children.inherited -
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- defaultFormat ↔ ResponsiveFormat
-
The default ResponsiveFormat for the Responsive widget. If for any reason no other ResponsiveFormat can be determined, this one is used.
getter/setter pair
- isDesktop ↔ IsResponsiveFormat
-
getter/setter pair
- isMobile ↔ IsResponsiveFormat
-
getter/setter pair
- isTablet ↔ IsResponsiveFormat
-
getter/setter pair
- lowerBound ↔ double
-
the lower bound of the screen width. If the screen width is below this value, its considered a ResponsiveFormat.mobile screen.
getter/setter pair
- upperBound ↔ double
-
the upper bound of the screen width. If the screen width is equal or above this value, its considered a ResponsiveFormat.desktop screen.
getter/setter pair
Static Methods
-
getFormat(
BuildContext context) → ResponsiveFormat - Returns the current ResponsiveFormat based on the isMobile, isDesktop and isTablet methods.
-
value<
T> ({required BuildContext context, T? onMobile, T? onDesktop, T? onTablet, ResponsiveFormat? preferredTabletFormat}) → T -
Creates a simple Value of one of the provided
onMobile
,onTablet
oronDesktop
values based on the current ResponsiveFormat. -
Creates a Responsive Widget which returns either of the provided
onMobile
,onTablet
oronDesktop
Widgets based on the current ResponsiveFormat.