card_scanner
library
Classes
AndroidMotionEvent
A Dart version of Android's MotionEvent .
AndroidPointerCoords
Position information for an Android pointer.
AndroidPointerProperties
Properties of an Android pointer.
AndroidViewController
Controls an Android view that is composed using a GL texture.
AppKitViewController
Controller for a macOS platform view.
ApplicationSwitcherDescription
Specifies a description of the application that is pertinent to the
embedder's application switcher (also known as "recent tasks") user
interface.
AssetBundle
A collection of resources used by the application.
AssetManifest
Contains details about available assets and their variants.
See Resolution-aware image assets
to learn about asset variants and how to declare them.
AssetMetadata
Contains information about an asset.
AutofillClient
An object that represents an autofillable input field in the autofill workflow.
AutofillConfiguration
A collection of autofill related information that represents an AutofillClient .
AutofillHints
A collection of commonly used autofill hint strings on different platforms.
AutofillScope
An ordered group within which AutofillClient s are logically connected.
BackgroundIsolateBinaryMessenger
A BinaryMessenger for use on background (non-root) isolates.
BasicMessageChannel <T >
A named channel for communicating with platform plugins using asynchronous
message passing.
BinaryCodec
MessageCodec with unencoded binary messages represented using ByteData .
BinaryMessenger
A messenger which sends binary data across the Flutter platform barrier.
Controls the browser's context menu on the web platform.
ByteData
A fixed-length, random-access sequence of bytes that also provides random
and unaligned access to the fixed-width integers and floating point
numbers represented by those bytes.
CachingAssetBundle
An AssetBundle that permanently caches string and structured resources
that have been fetched.
CardScanner
ChannelBuffers
The buffering and dispatch mechanism for messages sent by plugins
on the engine side to their corresponding plugin code on the
framework side.
CharacterBoundary
A TextBoundary subclass for retrieving the range of the grapheme the given
position is in.
Clipboard
Utility methods for interacting with the system's clipboard.
ClipboardData
Data stored on the system clipboard.
Color
An immutable 32 bit color value in ARGB format.
DarwinPlatformViewController
Base class for iOS and macOS view controllers.
DefaultProcessTextService
The service used by default for the text processing feature.
DefaultSpellCheckService
The service used by default to fetch spell check results for text input.
DeferredComponent
Manages the installation and loading of deferred components.
DiagnosticPropertiesBuilder
Builder to accumulate properties and configuration used to assemble a
DiagnosticsNode from a Diagnosticable object.
DocumentBoundary
A text boundary that uses the entire document as logical boundary.
EventChannel
A named channel for communicating with platform plugins using event streams.
ExpensiveAndroidViewController
Controls an Android view that is composed using the Android view hierarchy.
This controller is created from the PlatformViewsService.initExpensiveAndroidView factory.
FilteringTextInputFormatter
A TextInputFormatter that prevents the insertion of characters matching
(or not matching) a particular pattern, by replacing the characters with the
given replacementString .
FontLoader
A class that enables the dynamic loading of fonts at runtime.
FontWeight
The thickness of the glyphs used to draw the text.
GLFWKeyHelper
Helper class that uses GLFW-specific key mappings.
GtkKeyHelper
Helper class that uses GTK-specific key mappings.
HapticFeedback
Allows access to the haptic feedback interface on the device.
HardwareKeyboard
Manages key events from hardware keyboards.
ImmutableBuffer
A handle to a read-only byte buffer that is managed by the engine.
JSONMessageCodec
MessageCodec with UTF-8 encoded JSON messages.
JSONMethodCodec
MethodCodec with UTF-8 encoded JSON method calls and result envelopes.
KeyboardInsertedContent
A class representing rich content (such as a PNG image) inserted via the
system input method.
KeyboardKey
A base class for all keyboard key types.
KeyData
Information about a key event.
KeyDownEvent
An event indicating that the user has pressed a key down on the keyboard.
KeyEvent
Defines the interface for keyboard key events.
KeyEventManager
A singleton class that processes key messages from the platform and
dispatches converted messages accordingly.
KeyHelper
Abstract class for window-specific key mappings.
KeyMessage
The assembled information converted from a native key message.
KeyRepeatEvent
An event indicating that the user has been holding a key on the keyboard
and causing repeated events.
KeyUpEvent
An event indicating that the user has released a key on the keyboard.
LengthLimitingTextInputFormatter
A TextInputFormatter that prevents the insertion of more characters
than allowed.
LineBoundary
A TextBoundary subclass for locating closest line breaks to a given
position.
LiveText
Utility methods for interacting with the system's Live Text.
LogicalKeyboardKey
A class with static values that describe the keys that are returned from
RawKeyEvent.logicalKey .
Matrix4
4D Matrix.
Values are stored in column major order.
MessageCodec <T >
A message encoding/decoding mechanism.
MethodCall
A command object representing the invocation of a named method.
MethodChannel
A named channel for communicating with platform plugins using asynchronous
method calls.
MethodCodec
A codec for method calls and enveloped results.
MouseCursor
An interface for mouse cursor definitions.
MouseCursorManager
Maintains the state of mouse cursors and manages how cursors are searched
for.
MouseCursorSession
Manages the duration that a pointing device should display a specific mouse
cursor.
MouseTrackerAnnotation
The annotation object used to annotate regions that are interested in mouse
movements.
NetworkAssetBundle
An AssetBundle that loads resources over the network.
Offset
An immutable 2D floating-point offset.
OptionalMethodChannel
A MethodChannel that ignores missing platform plugins.
ParagraphBoundary
A text boundary that uses paragraphs as logical boundaries.
PhysicalKeyboardKey
A class with static values that describe the keys that are returned from
RawKeyEvent.physicalKey .
PlatformAssetBundle
An AssetBundle that loads resources using platform messages.
PlatformViewController
An interface for controlling a single platform view.
PlatformViewsRegistry
A registry responsible for generating unique identifier for platform views.
PlatformViewsService
Provides access to the platform views service.
PointerEnterEvent
The pointer has moved with respect to the device while the pointer is or is
not in contact with the device, and it has entered a target object.
PointerEvent
Base class for touch, stylus, or mouse events.
PointerExitEvent
The pointer has moved with respect to the device while the pointer is or is
not in contact with the device, and exited a target object.
PointerHoverEvent
The pointer has moved with respect to the device while the pointer is not
in contact with the device.
PredictiveBackEvent
Object used to report back gesture progress in Android.
ProcessTextAction
A data structure describing text processing actions.
ProcessTextService
Determines how to interact with the text processing feature.
RawFloatingCursorPoint
The current state and position of the floating cursor.
RawKeyboard
An interface for listening to raw key events.
RawKeyDownEvent
The user has pressed a key on the keyboard.
RawKeyEvent
Defines the interface for raw key events.
RawKeyEventData
Base class for platform-specific key event data.
RawKeyEventDataAndroid
Platform-specific key event data for Android.
RawKeyEventDataFuchsia
Platform-specific key event data for Fuchsia.
RawKeyEventDataIos
Platform-specific key event data for iOS.
RawKeyEventDataLinux
Platform-specific key event data for Linux.
RawKeyEventDataMacOs
Platform-specific key event data for macOS.
RawKeyEventDataWeb
Platform-specific key event data for Web.
RawKeyEventDataWindows
Platform-specific key event data for Windows.
RawKeyUpEvent
The user has released a key on the keyboard.
ReadBuffer
Read-only buffer for reading sequentially from a ByteData instance.
Rect
An immutable, 2D, axis-aligned, floating-point rectangle whose coordinates
are relative to a given origin.
RestorationBucket
A RestorationBucket holds pieces of the restoration data that a part of
the application needs to restore its state.
RestorationManager
Manages the restoration data in the framework and synchronizes it with the
engine.
RootIsolateToken
A token that represents a root isolate.
ScannedCardModel
ScanOptions
ScribbleClient
An interface to receive focus from the engine.
SelectionRect
Represents a selection rect for a character and it's position in the text.
Size
Holds a 2D floating-point size.
SpellCheckResults
A data structure grouping together the SuggestionSpan s and related text of
results returned by a spell checker.
SpellCheckService
Determines how spell check results are received for text input.
StandardMessageCodec
MessageCodec using the Flutter standard binary encoding.
StandardMethodCodec
MethodCodec using the Flutter standard binary encoding.
StringCodec
MessageCodec with UTF-8 encoded String messages.
SuggestionSpan
A data structure representing a range of misspelled text and the suggested
replacements for this range.
SurfaceAndroidViewController
Controls an Android view that is composed using a GL texture.
This controller is created from the PlatformViewsService.initSurfaceAndroidView factory,
and is defined for backward compatibility.
SystemChannels
Platform channels used by the Flutter system.
SystemChrome
Controls specific aspects of the operating system's graphical interface and
how it interacts with the application.
Allows access to the system context menu.
SystemMouseCursor
A mouse cursor that is natively supported on the platform that the
application is running on.
SystemMouseCursors
A collection of system MouseCursor s.
SystemNavigator
Controls specific aspects of the system navigation stack.
SystemSound
Provides access to the library of short system specific sounds for common
tasks.
SystemUiOverlayStyle
Specifies a preference for the style of the system overlays.
TextBoundary
An interface for retrieving the logical text boundary (as opposed to the
visual boundary) at a given code unit offset in a document.
TextEditingDelta
A structure representing a granular change that has occurred to the editing
state as a result of text editing.
TextEditingDeltaDeletion
A structure representing the deletion of a single/or contiguous sequence of
characters in an editing state.
TextEditingDeltaInsertion
A structure representing an insertion of a single/or contiguous sequence of
characters at some offset of an editing state.
TextEditingDeltaNonTextUpdate
A structure representing changes to the selection and/or composing regions
of an editing state and no changes to the text value.
TextEditingDeltaReplacement
A structure representing a replacement of a range of characters with a
new sequence of text.
TextEditingValue
The current text, selection, and composing state for editing a run of text.
TextInput
An low-level interface to the system's text input control.
TextInputConfiguration
Controls the visual appearance of the text input control.
TextInputConnection
An interface for interacting with a text input control.
TextInputFormatter
A TextInputFormatter can be optionally injected into an EditableText
to provide as-you-type validation and formatting of the text being edited.
TextInputType
The type of information for which to optimize the text input control.
TextLayoutMetrics
A read-only interface for accessing visual information about the
implementing text.
TextPosition
A position in a string of text.
A range of characters in a string of text.
TextSelection
A range of text that represents a selection.
TextureAndroidViewController
Controls an Android view that is rendered as a texture.
This is typically used by AndroidView to display a View in the Android view hierarchy.
UiKitViewController
Controller for an iOS platform view.
Uint8List
A fixed-length list of 8-bit unsigned integers.
UndoManager
A low-level interface to the system's undo manager.
WriteBuffer
Write-only buffer for incrementally building a ByteData instance.
Constants
appFlavor → const String ?
The flavor this app was built with.
kAndroidNumPadMap → const Map <int LogicalKeyboardKey
A map of Android key codes which have printable representations, but appear
on the number pad. Used to provide different key objects for keys like
KEY_EQUALS and NUMPAD_EQUALS.
kAndroidToLogicalKey → const Map <int LogicalKeyboardKey
Maps Android-specific key codes to the matching LogicalKeyboardKey .
kAndroidToPhysicalKey → const Map <int PhysicalKeyboardKey
Maps Android-specific scan codes to the matching PhysicalKeyboardKey .
kFuchsiaToLogicalKey → const Map <int LogicalKeyboardKey
Maps Fuchsia-specific IDs to the matching LogicalKeyboardKey .
kFuchsiaToPhysicalKey → const Map <int PhysicalKeyboardKey
Maps Fuchsia-specific USB HID Usage IDs to the matching
PhysicalKeyboardKey .
kGlfwNumpadMap → const Map <int LogicalKeyboardKey
A map of GLFW key codes which have printable representations, but appear
on the number pad. Used to provide different key objects for keys like
KEY_EQUALS and NUMPAD_EQUALS.
kGlfwToLogicalKey → const Map <int LogicalKeyboardKey
Maps GLFW-specific key codes to the matching LogicalKeyboardKey .
kGtkNumpadMap → const Map <int LogicalKeyboardKey
A map of GTK key codes which have printable representations, but appear
on the number pad. Used to provide different key objects for keys like
KEY_EQUALS and NUMPAD_EQUALS.
kGtkToLogicalKey → const Map <int LogicalKeyboardKey
Maps GTK-specific key codes to the matching LogicalKeyboardKey .
kIosNumPadMap → const Map <int LogicalKeyboardKey
A map of iOS key codes which have printable representations, but appear
on the number pad. Used to provide different key objects for keys like
KEY_EQUALS and NUMPAD_EQUALS.
kIosSpecialLogicalMap → const Map <String LogicalKeyboardKey
Maps iOS specific string values of nonvisible keys to logical keys
kIosToLogicalKey → const Map <int LogicalKeyboardKey
A map of iOS key codes presenting LogicalKeyboardKey .
kIosToPhysicalKey → const Map <int PhysicalKeyboardKey
Maps iOS-specific key code values representing PhysicalKeyboardKey .
kLinuxToPhysicalKey → const Map <int PhysicalKeyboardKey
Maps XKB specific key code values representing PhysicalKeyboardKey .
kMacOsFunctionKeyMap → const Map <int LogicalKeyboardKey
A map of macOS key codes which are numbered function keys, so that they
can be excluded when asking "is the Fn modifier down?".
kMacOsNumPadMap → const Map <int LogicalKeyboardKey
A map of macOS key codes which have printable representations, but appear
on the number pad. Used to provide different key objects for keys like
KEY_EQUALS and NUMPAD_EQUALS.
kMacOsToLogicalKey → const Map <int LogicalKeyboardKey
A map of macOS key codes presenting LogicalKeyboardKey .
kMacOsToPhysicalKey → const Map <int PhysicalKeyboardKey
Maps macOS-specific key code values representing PhysicalKeyboardKey .
kProfilePlatformChannels → const bool
Controls whether platform channel usage can be debugged in release mode.
kWebLocationMap → const Map <String List <LogicalKeyboardKey ?
A map of Web KeyboardEvent keys which needs to be decided based on location,
typically for numpad keys and modifier keys. Used to provide different key
objects for keys like KEY_EQUALS and NUMPAD_EQUALS.
kWebNumPadMap → const Map <String LogicalKeyboardKey
A map of Web KeyboardEvent codes which have printable representations, but appear
on the number pad. Used to provide different key objects for keys like
KEY_EQUALS and NUMPAD_EQUALS.
kWebToLogicalKey → const Map <String LogicalKeyboardKey
Maps Web KeyboardEvent codes to the matching LogicalKeyboardKey .
kWebToPhysicalKey → const Map <String PhysicalKeyboardKey
Maps Web KeyboardEvent codes to the matching PhysicalKeyboardKey .
kWindowsNumPadMap → const Map <int LogicalKeyboardKey
A map of Windows KeyboardEvent codes which have printable representations, but appear
on the number pad. Used to provide different key objects for keys like
KEY_EQUALS and NUMPAD_EQUALS.
kWindowsToLogicalKey → const Map <int LogicalKeyboardKey
Maps Windows KeyboardEvent codes to the matching LogicalKeyboardKey .
kWindowsToPhysicalKey → const Map <int PhysicalKeyboardKey
Maps Windows KeyboardEvent codes to the matching PhysicalKeyboardKey .
Exceptions / Errors
MissingPluginException
Thrown to indicate that a platform interaction failed to find a handling
plugin.
PlatformException
Thrown to indicate that a platform interaction failed in the platform
plugin.
