SemanticsWalker class
Walks the Flutter Semantics tree to extract structured UI descriptions.
The Semantics tree is Flutter's accessibility layer — it describes what is on screen in terms of labels, values, actions, and element types. This class reads that tree and produces ScreenContext snapshots.
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
captureScreenContext(
) → ScreenContext - Capture a snapshot of the current screen's UI elements.
-
dispose(
) → void - Release the semantics handle.
-
ensureSemantics(
) → void - Enable the semantics tree. Must be called once at startup. Returns a handle that keeps the tree alive; dispose it when done.
-
findNodeById(
int nodeId) → SemanticsNode? - Find a specific SemanticsNode by its ID.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited