Preview class Null safety

Widget for displaying preview frames from a CaptureSession.

Inheritance

Constructors

Preview({Key? key, required PreviewController controller})
Construct a Preview.

Properties

controller PreviewController
Controls the underlying iOS UIView that displays the preview frames.
final
gestureRecognizers Set<Factory<OneSequenceGestureRecognizer>>
Which gestures should be forwarded to the PlatformView.
finalinherited
hashCode int
The hash code for this object.
@nonVirtualread-onlyinherited
hitTestBehavior PlatformViewHitTestBehavior
How this widget should behave during hit testing.
finalinherited
instance Object
The object that will be stored in instanceManager.
finalinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
layoutDirection TextDirection
Direction the text flows.
finalinherited
platformViewCreatedListener PlatformViewCreatedCallback?
Callback signature for when a platform view was created.
finalinherited
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
viewType String
The unique identifier for the view type to be embedded.
finalinherited

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
inherited
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.
@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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.
@nonVirtualinherited