RenderingFlutterBinding class
A concrete binding for applications that use the Rendering framework directly. This is the glue that binds the framework to the Flutter engine.
You would only use this binding if you are writing to the rendering layer directly. If you are writing to a higher-level library, such as the Flutter Widgets library, then you would use that layer's binding.
See also BindingBase.
- Inheritance
- Object
- BindingBase
- RenderingFlutterBinding
- Mixed in types
Constructors
- RenderingFlutterBinding({RenderBox root })
- Creates a binding for the rendering layer. [...]
Properties
- accessibilityFeatures → AccessibilityFeatures
-
The currently active set of AccessibilityFeatures. [...]
read-only, inherited
- currentFrameTimeStamp → Duration
-
The time stamp for the frame currently being processed. [...]
read-only, inherited
- disableAnimations → bool
-
The platform is requesting that animations be disabled or simplified. [...]
read-only, inherited
-
endOfFrame
→ Future<
void> -
Returns a Future that completes after the frame completes. [...]
read-only, inherited
- framesEnabled → bool
-
Whether frames are currently being scheduled when scheduleFrame is called. [...]
read-only, inherited
- gestureArena → GestureArenaManager
-
The gesture arenas used for disambiguating the meaning of sequences of
pointer events.
final, inherited
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- hasScheduledFrame → bool
-
Whether this scheduler has requested that handleBeginFrame be called soon.
read-only, inherited
- lifecycleState → AppLifecycleState
-
Whether the application is visible, and if so, whether it is currently
interactive. [...]
read-only, inherited
- locked → bool
-
Whether lockEvents is currently locking events. [...]
@protected, read-only, inherited
- pipelineOwner → PipelineOwner
-
The render tree's owner, which maintains dirty state for layout,
composite, paint, and accessibility semantics
read-only, inherited
- pointerRouter → PointerRouter
-
A router that routes all pointer events received from the engine.
final, inherited
- renderView ↔ RenderView
-
The render tree that's attached to the output surface.
read / write, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
- schedulerPhase → SchedulerPhase
-
The phase that the scheduler is currently operating under.
read-only, inherited
- schedulingStrategy ↔ SchedulingStrategy
-
The strategy to use when deciding whether to run a task or not. [...]
read / write, inherited
- transientCallbackCount → int
-
The current number of transient frame callbacks scheduled. [...]
read-only, inherited
Methods
-
addPersistentFrameCallback(
FrameCallback callback) → void -
Adds a persistent frame callback. [...]
inherited
-
addPostFrameCallback(
FrameCallback callback) → void -
Schedule a callback for the end of this frame. [...]
inherited
-
cancelFrameCallbackWithId(
int id) → void -
Cancels the transient frame callback with the given
id. [...]inherited -
cancelPointer(
int pointer) → void -
Dispatch a PointerCancelEvent for the given pointer soon. [...]
inherited
-
createViewConfiguration(
) → ViewConfiguration -
Returns a ViewConfiguration configured for the RenderView based on the
current environment. [...]
inherited
-
debugAssertNoTransientCallbacks(
String reason) → bool -
Asserts that there are no registered transient callbacks; if
there are, prints their locations and throws an exception. [...]
inherited
-
dispatchEvent(
PointerEvent event, HitTestResult result) → void -
Dispatch an event to a hit test result's path. [...]
inherited
-
drawFrame(
) → void -
Pump the rendering pipeline to generate a frame. [...]
@protected, inherited
-
ensureVisualUpdate(
) → void -
Schedules a new frame using scheduleFrame if this object is not
currently producing a frame. [...]
inherited
-
evict(
String asset) → void -
Called in response to the
ext.flutter.evictservice extension. [...]@mustCallSuper, @protected, inherited -
handleAccessibilityFeaturesChanged(
) → void -
Called when the platform accessibility features change. [...]
@protected, inherited
-
handleAppLifecycleStateChanged(
AppLifecycleState state) → void -
Called when the application lifecycle state changes. [...]
@mustCallSuper, @protected, inherited
-
handleBeginFrame(
Duration rawTimeStamp) → void -
Called by the engine to prepare the framework to produce a new frame. [...]
inherited
-
handleDrawFrame(
) → void -
Called by the engine to produce a new frame. [...]
inherited
-
handleEvent(
PointerEvent event, HitTestEntry entry) → void -
Override this method to receive events.
inherited
-
handleEventLoopCallback(
) → bool -
Execute the highest-priority task, if it is of a high enough priority. [...]
@visibleForTesting, inherited
-
handleMetricsChanged(
) → void -
Called when the system metrics change. [...]
@protected, inherited
-
handleTextScaleFactorChanged(
) → void -
Called when the platform text scale factor changes. [...]
@protected, inherited
-
hitTest(
HitTestResult result, Offset position) → void -
Check whether the given position hits this object. [...]
inherited
-
initInstances(
) → void -
The initialization method. Subclasses override this method to hook into
the platform and otherwise configure their services. Subclasses must call
"super.initInstances()". [...]
inherited
-
initLicenses(
) → void -
Adds relevant licenses to the LicenseRegistry. [...]
@mustCallSuper, @protected, inherited
-
initRenderView(
) → void -
Creates a RenderView object to be the root of the
RenderObject rendering tree, and initializes it so that it
will be rendered when the engine is next ready to display a
frame. [...]
inherited
-
initServiceExtensions(
) → void -
Called when the binding is initialized, to register service
extensions. [...]
inherited
-
lockEvents(
Future< void> callback()) → Future< void> -
Locks the dispatching of asynchronous events and callbacks until the
callback's future completes. [...]
@protected, inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
performReassemble(
) → Future< void> -
This method is called by reassembleApplication to actually cause the
application to reassemble, e.g. after a hot reload. [...]
inherited
-
reassembleApplication(
) → Future< void> -
Cause the entire application to redraw, e.g. after a hot reload. [...]
inherited
-
registerBoolServiceExtension(
{String name, AsyncValueGetter< bool> getter, AsyncValueSetter< bool> setter }) → void -
Registers a service extension method with the given name (full
name "ext.flutter.name"), which takes a single argument
"enabled" which can have the value "true" or the value "false"
or can be omitted to read the current value. (Any value other
than "true" is considered equivalent to "false". Other arguments
are ignored.) [...]
@protected, inherited
-
registerNumericServiceExtension(
{String name, AsyncValueGetter< double> getter, AsyncValueSetter< double> setter }) → void -
Registers a service extension method with the given name (full
name "ext.flutter.name"), which takes a single argument with the
same name as the method which, if present, must have a value
that can be parsed by double.parse, and can be omitted to read
the current value. (Other arguments are ignored.) [...]
@protected, inherited
-
registerServiceExtension(
{String name, ServiceExtensionCallback callback }) → void -
Registers a service extension method with the given name (full name
"ext.flutter.name"). [...]
@protected, inherited
-
registerSignalServiceExtension(
{String name, AsyncCallback callback }) → void -
Registers a service extension method with the given name (full
name "ext.flutter.name"), which takes no arguments and returns
no value. [...]
@protected, inherited
-
registerStringServiceExtension(
{String name, AsyncValueGetter< String> getter, AsyncValueSetter< String> setter }) → void -
Registers a service extension method with the given name (full name
"ext.flutter.name"), which optionally takes a single argument with the
name "value". If the argument is omitted, the value is to be read,
otherwise it is to be set. Returns the current value. [...]
@protected, inherited
-
resetEpoch(
) → void -
Prepares the scheduler for a non-monotonic change to how time stamps are
calculated. [...]
inherited
-
scheduleForcedFrame(
) → void -
Schedules a new frame by calling Window.scheduleFrame. [...]
inherited
-
scheduleFrame(
) → void -
If necessary, schedules a new frame by calling
Window.scheduleFrame. [...]
inherited
-
scheduleFrameCallback(
FrameCallback callback, { bool rescheduling: false }) → int -
Schedules the given transient frame callback. [...]
inherited
-
scheduleTask<
T>( TaskCallback< T> task, Priority priority, { String debugLabel, Flow flow }) → Future< T> -
Schedules the given
taskwith the givenpriorityand returns a Future that completes to thetask's eventual return value. [...]inherited -
scheduleWarmUpFrame(
) → void -
Schedule a frame to run as soon as possible, rather than waiting for
the engine to request a frame in response to a system "Vsync" signal. [...]
inherited
-
setSemanticsEnabled(
bool enabled) → void -
Whether the render tree associated with this binding should produce a tree
of SemanticsNode objects.
inherited
-
toString(
) → String -
Returns a string representation of this object.
inherited
-
unlocked(
) → void -
Called by lockEvents when events get unlocked. [...]
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited