NavigationInstructionUpdateInfo class Navigation

Detailed information about a navigation instruction update.

Provided by the onNavigationInstructionOptimized callback in NavigationService.startNavigation and NavigationService.startSimulation. Contains the set of instruction fields that changed since the last update, enabling efficient UI updates by redrawing only affected components.

See also:

• NavigationService.startNavigation - Register the optimized instruction callback.
• NavigationInstructionDifferenceResult - Enumeration of diffable instruction fields.
• NavigationInstructionUpdateEvents - Events that triggered the update.

Constructors

NavigationInstructionUpdateInfo({required Set<NavigationInstructionDifferenceResult> differences, required bool hasNewRoute, required Set<NavigationInstructionUpdateEvents> events})

Creates a NavigationInstructionUpdateInfo instance.

Properties

differences ↔ Set<NavigationInstructionDifferenceResult>

The set of instruction fields that differ from the previous instruction.

getter/setter pair

events ↔ Set<NavigationInstructionUpdateEvents>

The set of events that triggered this instruction update.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

hasNewRoute ↔ bool

Whether the update is due to a new route being set (e.g. after recalculation).

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

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