TestPlatformDispatcher class Null safety

PlatformDispatcher that wraps another PlatformDispatcher and allows faking of some properties for testing purposes.

See also:

Implemented types

Constructors

TestPlatformDispatcher({required PlatformDispatcher platformDispatcher})
Constructs a TestPlatformDispatcher that defers all behavior to the given dart:ui.PlatformDispatcher unless explicitly overridden for test purposes.

Properties

accessibilityFeatures → AccessibilityFeatures
Additional accessibility features that may be enabled by the platform.
read-onlyoverride
accessibilityFeaturesTestValue ← AccessibilityFeatures
Hides the real accessibility features and reports the given accessibilityFeaturesTestValue instead.
write-only
alwaysUse24HourFormat → bool
The setting indicating whether time should always be shown in the 24-hour format.
read-onlyoverride
alwaysUse24HourFormatTestValue ← bool
Hides the real clock format and reports the given alwaysUse24HourFormatTestValue instead.
write-only
brieflyShowPassword → bool
Whether briefly displaying the characters as you type in obscured text fields is enabled in system settings.
read-onlyoverride
brieflyShowPasswordTestValue ← bool
Hides the real brieflyShowPassword and reports the given brieflyShowPasswordTestValue instead.
write-only
configuration → PlatformConfiguration
The current platform configuration.
read-onlyoverride
defaultRouteName → String
The route or path that the embedder requested when the application was launched.
read-onlyoverride
defaultRouteNameTestValue ← String
Hides the real default route name and reports the given defaultRouteNameTestValue instead.
write-only
frameData → FrameData
The FrameData object for the current frame.
read-onlyoverride
hashCode → int
The hash code for this object.
read-onlyinherited
initialLifecycleState → String
The lifecycle state immediately after dart isolate initialization.
read-onlyoverride
initialLifecycleStateTestValue ← String
Sets a faked initialLifecycleState for testing.
write-only
locale → Locale
The system-reported default locale of the device.
read-onlyoverride
locales → List<Locale>
The full system-reported supported locales of the device.
read-onlyoverride
localesTestValue ← List<Locale>
Hides the real locales and reports the given localesTestValue instead.
write-only
localeTestValue ← Locale
Hides the real locale and reports the given localeTestValue instead.
write-only
nativeSpellCheckServiceDefined → bool
Whether the spell check service is supported on the current platform.
read-onlyoverride
nativeSpellCheckServiceDefinedTestValue ← bool
write-only
onAccessibilityFeaturesChanged ↔ VoidCallback?
A callback that is invoked when the value of accessibilityFeatures changes.
read / writeoverride
onBeginFrame ↔ FrameCallback?
A callback invoked when any view begins a frame.
read / writeoverride
onDrawFrame ↔ VoidCallback?
A callback that is invoked for each frame after onBeginFrame has completed and after the microtask queue has been drained.
read / writeoverride
onError ↔ ErrorCallback?
A callback that is invoked when an unhandled error occurs in the root isolate.
read / writeinherited
onFrameDataChanged ↔ VoidCallback?
A callback that is invoked when the window updates the FrameData.
read / writeoverride
onKeyData ↔ KeyDataCallback?
A callback that is invoked when key data is available.
read / writeoverride
onLocaleChanged ↔ VoidCallback?
A callback that is invoked whenever locale changes value.
read / writeoverride
onMetricsChanged ↔ VoidCallback?
A callback that is invoked whenever the ViewConfiguration of any of the views changes.
read / writeoverride
onPlatformBrightnessChanged ↔ VoidCallback?
A callback that is invoked whenever platformBrightness changes value.
read / writeoverride
onPlatformConfigurationChanged ↔ VoidCallback?
Called when the platform configuration changes.
read / writeoverride
onPlatformMessage ↔ PlatformMessageCallback?
Called whenever this platform dispatcher receives a message from a platform-specific plugin.
read / writeoverride
onPointerDataPacket ↔ PointerDataPacketCallback?
A callback that is invoked when pointer data is available.
read / writeoverride
onReportTimings ↔ TimingsCallback?
A callback that is invoked to report the FrameTiming of recently rasterized frames.
read / writeoverride
onSemanticsAction ↔ SemanticsActionCallback?
A callback that is invoked whenever the user requests an action to be performed.
read / writeoverride
onSemanticsEnabledChanged ↔ VoidCallback?
A callback that is invoked when the value of semanticsEnabled changes.
read / writeoverride
onSystemFontFamilyChanged ↔ VoidCallback?
A callback that is invoked whenever systemFontFamily changes value.
read / writeinherited
onTextScaleFactorChanged ↔ VoidCallback?
A callback that is invoked whenever textScaleFactor changes value.
read / writeoverride
platformBrightness → Brightness
The setting indicating the current brightness mode of the host platform. If the platform has no preference, platformBrightness defaults to Brightness.light.
read-onlyoverride
platformBrightnessTestValue ← Brightness
Hides the real text scale factor and reports the given platformBrightnessTestValue instead.
write-only
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
semanticsEnabled → bool
Whether the user has requested that updateSemantics be called when the semantic contents of a view changes.
read-onlyoverride
semanticsEnabledTestValue ← bool
Hides the real semantics enabled and reports the given semanticsEnabledTestValue instead.
write-only
systemFontFamily → String?
The setting indicating the current system font of the host platform.
read-onlyinherited
textScaleFactor → double
The system-reported text scale.
read-onlyoverride
textScaleFactorTestValue ← double
Hides the real text scale factor and reports the given textScaleFactorTestValue instead.
write-only
views → Iterable<FlutterView>
The current list of views, including top level platform windows used by the application.
read-onlyoverride

Methods

clearAccessibilityFeaturesTestValue() → void
Deletes any existing test accessibility features and returns to using the real accessibility features.
clearAllTestValues() → void
Delete any test value properties that have been set on this TestPlatformDispatcher and return to reporting the real ui.PlatformDispatcher values for all PlatformDispatcher properties.
clearAlwaysUse24HourTestValue() → void
Deletes any existing test clock format and returns to using the real clock format.
clearDefaultRouteNameTestValue() → void
Deletes any existing test default route name and returns to using the real default route name.
clearLocalesTestValue() → void
Deletes any existing test locales and returns to using the real locales.
clearLocaleTestValue() → void
Deletes any existing test locale and returns to using the real locale.
clearNativeSpellCheckServiceDefined() → void
Deletes existing value that determines whether or not a native spell check service is defined and returns to the real value.
clearPlatformBrightnessTestValue() → void
Deletes any existing test platform brightness and returns to using the real platform brightness.
clearSemanticsEnabledTestValue() → void
Deletes any existing test semantics enabled and returns to using the real semantics enabled.
clearTextScaleFactorTestValue() → void
Deletes any existing test text scale factor and returns to using the real text scale factor.
computePlatformResolvedLocale(List<Locale> supportedLocales) → Locale?
Performs the platform-native locale resolution.
override
getPersistentIsolateData() → ByteData?
The embedder can specify data that the isolate can request synchronously on launch. This accessor fetches that data.
override
noSuchMethod(Invocation invocation) → dynamic
This gives us some grace time when the dart:ui side adds something to PlatformDispatcher, and makes things easier when we do rolls to give us time to catch up.
override
registerBackgroundIsolate(RootIsolateToken token) → void
Registers the current isolate with the isolate identified with by the token. This is required if platform channels are to be used on a background isolate.
inherited
requestDartPerformanceMode(DartPerformanceMode mode) → void
Requests the Dart VM to adjusts the GC heuristics based on the requested performance_mode.
inherited
scheduleFrame() → void
Requests that, at the next appropriate opportunity, the onBeginFrame and onDrawFrame callbacks be invoked.
override
sendPlatformMessage(String name, ByteData? data, PlatformMessageResponseCallback? callback) → void
Sends a message to a platform-specific plugin.
override
sendPortPlatformMessage(String name, ByteData? data, int identifier, SendPort port) → void
Sends a message to a platform-specific plugin via a SendPort.
inherited
setIsolateDebugName(String name) → void
Set the debug name associated with this platform dispatcher's root isolate.
override
toString() → String
A string representation of this object.
inherited
updateSemantics(SemanticsUpdate update) → void
Change the retained semantics data about this platform dispatcher.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited