EasyImageView class

An interactive image viewer widget with zoom and pan capabilities.

Displays a network image with full zoom/pan functionality using InteractiveViewer and CachedNetworkImage for efficient image loading and caching. Provides real-time scale change callbacks during user interaction.

Features:

  • Cached network image loading
  • Pinch to zoom (customizable min/max scale)
  • Pan/drag to move zoomed images
  • Full screen display
  • Real-time scale change callbacks
  • High quality filtering

Example:

EasyImageView(
  imageProvider: 'https://example.com/image.jpg',
  minScale: 1.0,
  maxScale: 5.0,
  onScaleChanged: (scale) {
    print('Current scale: $scale');
    if (scale > 3.0) {
      // Handle high zoom level
    }
  },
)

See also:

Inheritance
Available extensions

Constructors

EasyImageView({Key? key, required String imageProvider, double minScale = 1.0, double maxScale = 5.0, required void onScaleChanged(double)})
Creates an interactive image viewer.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
imageProvider → String
The URL of the network image to display
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
marginZero → Widget

Available on Widget, provided by the WidgetMarginX extension

no setter
maxScale → double
Maximum scale factor (e.g., 5.0 = 500% zoom)
final
minScale → double
Minimum scale factor (1.0 = original size)
final
onScaleChanged → void Function(double)
Callback invoked when the scale changes during zoom/pan interaction.
final
paddingZero → Widget

Available on Widget, provided by the WidgetPaddingX extension

no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
sliverBox → Widget

Available on Widget, provided by the WidgetSliverBoxX extension

no setter

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _EasyImageViewState
Creates the mutable state for this widget at a given location in the tree.
override
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
marginAll(double margin) → Widget

Available on Widget, provided by the WidgetMarginX extension

marginOnly({double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0}) → Widget

Available on Widget, provided by the WidgetMarginX extension

marginSymmetric({double horizontal = 0.0, double vertical = 0.0}) → Widget

Available on Widget, provided by the WidgetMarginX extension

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
paddingAll(double padding) → Widget

Available on Widget, provided by the WidgetPaddingX extension

paddingOnly({double left = 0.0, double top = 0.0, double right = 0.0, double bottom = 0.0}) → Widget

Available on Widget, provided by the WidgetPaddingX extension

paddingSymmetric({double horizontal = 0.0, double vertical = 0.0}) → Widget

Available on Widget, provided by the WidgetPaddingX extension

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