QrcodeBarcodeScanner class
A class that handles scanning of QR codes and barcodes.
The QrcodeBarcodeScanner class listens to keyboard events to scan QR codes and barcodes. It uses a StreamController to listen to keyboard events and a DelayedActionHandler to handle delayed events.
Constructors
- QrcodeBarcodeScanner.new({required ScannedCallback onScannedCallback})
- Creates a new instance of QrcodeBarcodeScanner.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- onScannedCallback → ScannedCallback
-
The callback function to handle scanned barcodes.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
dispose(
) → void -
Disposes the resources used by the
QrcodeBarcodeScanner. -
getPlatformVersion(
) → Future< String?> -
isKeyDown(
RawKeyEvent event) → bool -
Returns
trueif the RawKeyEvent is a key down event. -
isShift(
LogicalKeyboardKey key) → bool -
Returns
trueif the LogicalKeyboardKey is the shift key. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onKeyEvent(
String? readChar) → void -
Handles a keyboard event by adding the read character to the
_pressedKeyslist. -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited