ZoomableWidget class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ZoomableWidget
Constructors
-
ZoomableWidget({Key? key, double minScale = 0.7, double maxScale = 1.4, double initialScale = 1.0, Offset initialOffset = Offset.zero, double initialRotation = 0.0, bool enableZoom = true, double panLimit = 1.0, bool singleFingerPan = true, bool multiFingersPan = true, bool enableRotate = false, Widget? child, VoidCallback? onTap, int zoomSteps = 0, bool autoCenter = false, bool bounceBackBoundary = true, bool enableFling = true, double flingFactor = 1.0, ValueChanged<
double> ? onZoomChanged, Duration resetDuration = const Duration(milliseconds: 250), Curve resetCurve = Curves.easeInOut})
Properties
- autoCenter → bool
-
Center offset when zooming to minimum scale.
final
- bounceBackBoundary → bool
-
Enable the bounce-back boundary.
final
- child → Widget?
-
The child widget that is display.
final
- enableFling → bool
-
Allow fling child widget after panning.
final
- enableRotate → bool
-
Allow rotating the
image.final - enableZoom → bool
-
Allow zooming the child widget.
final
- flingFactor → double
-
Greater value create greater fling distance.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- initialOffset → Offset
-
The initial offset.
final
- initialRotation → double
-
The initial rotation.
final
- initialScale → double
-
The initial scale.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- maxScale → double
-
The maximum size for scaling.
final
- minScale → double
-
The minimum size for scaling.
final
- multiFingersPan → bool
-
Allow panning with more than one finger.
final
- onTap → VoidCallback?
-
Tap callback for this widget.
final
-
onZoomChanged
→ ValueChanged<
double> ? -
When the scale value changed, the callback will be invoked.
final
- panLimit → double
-
Create a boundary with the factor.
final
- resetCurve → Curve
-
The curve of reset animation.
final
- resetDuration → Duration
-
The duration of reset animation.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- singleFingerPan → bool
-
Allow panning with one finger.
final
- zoomSteps → int
-
Allow users to zoom with double tap steps by steps.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → _ZoomableWidgetState -
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
-
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