CameraPickerState class
Inheritance
Mixed-in types
Methods
activate ()
→ void
Called when this object is reinserted into the tree after having been
removed via deactivate .
inherited
backButton (BuildContext context , BoxConstraints constraints → Widget
The back button near to the shootingButton .
build (BuildContext context → Widget
Describes the part of the user interface represented by this widget.
override
deactivate ()
→ void
Called when this object is removed from the tree.
inherited
debugFillProperties (DiagnosticPropertiesBuilder properties → void
Add additional properties associated with the node.
inherited
didChangeAccessibilityFeatures ()
→ void
Called when the system changes the set of currently active accessibility
features.
inherited
didChangeAppLifecycleState (AppLifecycleState state → void
Called when the system puts the app in the background or returns
the app to the foreground.
override
didChangeDependencies ()
→ void
Called when a dependency of this State object changes.
inherited
didChangeLocales (List <Locale ?locales → void
Called when the system tells the app that the user's locale has
changed. For example, if the user changes the system language
settings.
inherited
didChangeMetrics ()
→ void
Called when the application's dimensions change. For example,
when a phone is rotated.
inherited
didChangePlatformBrightness ()
→ void
Called when the platform brightness changes.
inherited
didChangeTextScaleFactor ()
→ void
Called when the platform's text scale factor changes.
inherited
didChangeViewFocus (ViewFocusEvent event → void
Called whenever the PlatformDispatcher receives a notification that the
focus state on a view has changed.
inherited
didHaveMemoryPressure ()
→ void
Called when the system is running low on memory.
inherited
didPopRoute ()
→ Future <bool
Called when the system tells the app to pop the current route, such as
after a system back button press or back gesture.
inherited
didPushRoute (String route → Future <bool
Called when the host tells the application to push a new route onto the
navigator.
inherited
didPushRouteInformation (RouteInformation routeInformation → Future <bool
Called when the host tells the application to push a new
RouteInformation and a restoration state onto the router.
inherited
didRequestAppExit ()
→ Future <AppExitResponse
Called when a request is received from the system to exit the application.
inherited
didUpdateWidget (covariant CameraPicker oldWidget → void
Called whenever the widget configuration changes.
inherited
dispose ()
→ void
Called when this object is removed from the tree permanently.
override
handleCancelBackGesture ()
→ void
Called when a predictive back gesture is canceled, indicating that no
navigation should occur.
inherited
handleCommitBackGesture ()
→ void
Called when a predictive back gesture is finished successfully, indicating
that the current route should be popped.
inherited
handleStartBackGesture (PredictiveBackEvent backEvent → bool
Called at the start of a predictive back gesture.
inherited
handleUpdateBackGestureProgress (PredictiveBackEvent backEvent → void
Called when a predictive back gesture moves.
inherited
initCameras ([CameraDescription ?cameraDescription → void
initState ()
→ void
Called when this object is inserted into the tree.
override
noSuchMethod (Invocation invocation → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onShootingButtonMove (PointerMoveEvent event , BoxConstraints constraints → void
Update the scale value while the user is shooting.
用户在录制时通过滑动更新缩放
reassemble ()
→ void
Called whenever the application is reassembled during debugging, for
example during hot reload.
inherited
recordDetection ()
→ void
When the shootingButton 's onLongPress called, the _recordDetectTimer
will be initialized to achieve press time detection. If the duration
reached to same as recordDetectDuration , and the timer still active,
start recording video.
recordDetectionCancel (PointerUpEvent event → void
This will be given to the Listener in the shootingButton . When it's
called, which means no more pressing on the button, cancel the timer and
reset the status.
setExposureAndFocusPoint (TapUpDetails details , BoxConstraints constraints → Future <void >
Use the details point to set exposure and focus.
setState (VoidCallback fn → void
Notify the framework that the internal state of this object has changed.
inherited
shootingActions (BuildContext context , CameraController ?controller , BoxConstraints constraints → Widget
Shooting action section widget.
This displayed at the top of the screen.
shootingButton (BoxConstraints constraints → Widget
The shooting button.
startRecordingVideo ()
→ void
Set record file path and start recording.
stopRecordingVideo ()
→ void
Stop the recording process.
switchCameras ()
→ void
The method to switch cameras.
Switch cameras in order. When the currentCameraIndex reached the length
of cameras, start from the beginning.
switchExposureMode ()
→ void
Use the specific mode to update the exposure mode.
switchFlashesButton (CameraValue value → Widget
The button to switch flash modes.
switchFlashesMode ()
→ Future <void >
The method to switch between flash modes.
takePicture ()
→ Future <void >
The method to take a picture.
The picture will only taken when isInitialized, and the camera is not
taking pictures.
tipsTextWidget (CameraController ?controller → Widget
Text widget for shooting tips.
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
toStringShort ()
→ String
A brief description of this object, usually just the runtimeType and the
hashCode .
inherited
updateExposureOffset (double value → void
Update the exposure offset using the exposure controller.
zoom (double scale → Future <void >
