DisplayImage class
A widget for displaying images from various sources and formats.
The DisplayImage
class is a versatile widget that can display images from
either network sources or local assets. It supports common image formats, such as
SVG
, PNG
, JPEG
, JPG
, and GIF
. The widget determines the appropriate
rendering method based on the image URL's prefix and extension.
Parameters:
- imageUrl: The URL or asset path of the image to display.
- backgroundColor: An optional background color to apply to the image (used as a
ColorFilter
forSVG
and as a tint for other formats). - size: The desired size of the image, specified as a
Size
object.
Usage:
DisplayImage(
imageUrl: "https://example.com/image.png",
size: Size(100, 100),
),
The widget handles different image formats and sources:
- SVG Images: Uses
flutter_svg
to renderSVG
images from network or asset sources. - Raster Images: For
PNG
,JPEG/JPG
, andGIF
, it usesImage.network
orImage.asset
depending on the source.
If the image extension is not recognized or the URL does not indicate a network-based source, it returns an error icon as a fallback.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- DisplayImage
Constructors
Properties
- backgroundColor → Color?
-
final
- boxFit → BoxFit
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- imageUrl → String
-
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- size → Size?
-
final
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this 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, int wrapWidth = 65}) → 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