Skip to content

add property for show gallery button or not #111

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
itsarvinddev merged 3 commits into from
Jul 5, 2025
Merged

add property for show gallery button or not #111

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
ca54ca1
add property for show gallery button or not
aslangery-cloud May 28, 2024
f006ed8
Merge branch 'master' into show_gallery_button
itsarvinddev Jul 5, 2025
94df7ae
Update ai_barcode_scanner.dart
itsarvinddev Jul 5, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
155 changes: 39 additions & 116 deletions lib/src/ai_barcode_scanner.dart
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -18,8 +18,7 @@ class AiBarcodeScanner extends StatefulWidget {
/// You can use your own custom overlay builder
/// to build your own overlay
/// This will override the default custom overlay
final Widget? Function(BuildContext, bool?, MobileScannerController)?
customOverlayBuilder;
final Widget? Function(BuildContext, bool?, MobileScannerController)? customOverlayBuilder;

/// Overlay border color (default: white)
final Color? borderColor;
Expand Down Expand Up @@ -65,8 +64,7 @@ class AiBarcodeScanner extends StatefulWidget {
///
/// If this is null, defaults to a black [ColoredBox]
/// with a centered white [Icons.error] icon.
final Widget Function(BuildContext, MobileScannerException, Widget?)?
errorBuilder;
final Widget Function(BuildContext, MobileScannerException, Widget?)? errorBuilder;

/// The function that builds a placeholder widget when the scanner
/// is not yet displaying its camera preview.
Expand All @@ -79,87 +77,19 @@ class AiBarcodeScanner extends StatefulWidget {

/// AppBar widget
/// you can use this to add appBar to the scanner screen
///
final PreferredSizeWidget? Function(
BuildContext context, MobileScannerController controller)? appBarBuilder;
final PreferredSizeWidget? Function(BuildContext context, MobileScannerController controller)? appBarBuilder;

/// The builder for the bottom sheet.
/// This is displayed below the camera preview.
final Widget? Function(
BuildContext context, MobileScannerController controller)?
bottomSheetBuilder;
final Widget? Function(BuildContext context, MobileScannerController controller)? bottomSheetBuilder;

/// The builder for the overlay above the camera preview.
///
/// The resulting widget can be combined with the [scanWindow] rectangle
/// to create a cutout for the camera preview.
///
/// The [BoxConstraints] for this builder
/// are the same constraints that are used to compute the effective [scanWindow].
///
/// The overlay is only displayed when the camera preview is visible.
final LayoutWidgetBuilder? overlayBuilder;

/// The scan window rectangle for the barcode scanner.
///
/// If this is not null, the barcode scanner will only scan barcodes
/// which intersect this rectangle.
///
/// This rectangle is relative to the layout size
/// of the *camera preview widget* in the widget tree,
/// rather than the actual size of the camera preview output.
/// This is because the size of the camera preview widget
/// might not be the same as the size of the camera output.
///
/// For example, the applied [fit] has an effect on the size of the camera preview widget,
/// while the camera preview size remains the same.
///
/// The following example shows a scan window that is centered,
/// fills half the height and one third of the width of the layout:
///
/// ```dart
/// LayoutBuider(
/// builder: (BuildContext context, BoxConstraints constraints) {
/// final Size layoutSize = constraints.biggest;
///
/// final double scanWindowWidth = layoutSize.width / 3;
/// final double scanWindowHeight = layoutSize.height / 2;
///
/// final Rect scanWindow = Rect.fromCenter(
/// center: layoutSize.center(Offset.zero),
/// width: scanWindowWidth,
/// height: scanWindowHeight,
/// );
/// }
/// );
/// ```
final Rect? scanWindow;

/// The threshold for updates to the [scanWindow].
///
/// If the [scanWindow] would be updated,
/// due to new layout constraints for the scanner,
/// and the width or height of the new scan window have not changed by this threshold,
/// then the scan window is not updated.
///
/// It is recommended to set this threshold
/// if scan window updates cause performance issues.
///
/// Defaults to no threshold for scan window updates.
///
final void Function(BarcodeCapture)? onDetect;

/// The threshold for updates to the [scanWindow].
///
/// If the [scanWindow] would be updated,
/// due to new layout constraints for the scanner,
/// and the width or height of the new scan window have not changed by this threshold,
/// then the scan window is not updated.
///
/// It is recommended to set this threshold
/// if scan window updates cause performance issues.
///
/// Defaults to no threshold for scan window updates.
final double scanWindowUpdateThreshold;

/// Validator function to check if barcode is valid or not
Expand Down Expand Up @@ -191,15 +121,16 @@ class AiBarcodeScanner extends StatefulWidget {
final bool extendBodyBehindAppBar;

/// Upload from gallery button alignment
/// default: bottom center, center, 0.75
final AlignmentGeometry? galleryButtonAlignment;

/// actions for the app bar (optional)
/// Camera switch and torch toggle buttons are added by default
/// You can add more actions to the app bar using this parameter
final List<Widget>? actions;

/// Lock orientation to portrait (default: true)
final bool setPortraitOrientation;

const AiBarcodeScanner({
super.key,
this.fit = BoxFit.cover,
Expand Down Expand Up @@ -232,12 +163,12 @@ class AiBarcodeScanner extends StatefulWidget {
this.sheetChild = const SizedBox.shrink(),
this.hideSheetDragHandler = false,
this.hideSheetTitle = false,
this.galleryButtonAlignment,
this.actions,
this.hideGalleryButton = false,
this.hideGalleryIcon = true,
this.bottomSheetBuilder,
this.extendBodyBehindAppBar = true,
this.galleryButtonAlignment,
this.actions,
this.setPortraitOrientation = true,
});

Expand All @@ -246,37 +177,37 @@ class AiBarcodeScanner extends StatefulWidget {
}

class _AiBarcodeScannerState extends State<AiBarcodeScanner> {
/// bool to check if barcode is valid or not
final ValueNotifier<bool?> _isSuccess = ValueNotifier<bool?>(null);

/// Scanner controller
late MobileScannerController controller;

double _cutOutBottomOffset = 0;

@override
void initState() {
if (widget.setPortraitOrientation) {
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
]);
}
controller = widget.controller ?? MobileScannerController();
_cutOutBottomOffset = widget.cutOutBottomOffset;
super.initState();
}

@override
void dispose() {
// controller.dispose();
// widget.controller?.dispose();
if (widget.controller == null) {
controller.dispose();
}
widget.onDispose?.call();
if (widget.setPortraitOrientation) {
SystemChrome.setPreferredOrientations(DeviceOrientation.values);
}
super.dispose();
}

@override
Widget build(BuildContext context) {
if (widget.setPortraitOrientation) {
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
]);
}
return Scaffold(
appBar: widget.appBarBuilder?.call(context, controller) ??
AppBar(
Expand All @@ -286,17 +217,16 @@ class _AiBarcodeScannerState extends State<AiBarcodeScanner> {
actions: [
IconButton(
icon: const Icon(Icons.cameraswitch_rounded),
onPressed: controller.switchCamera,
onPressed: () => controller.switchCamera(),
),

IconButton(
icon: controller.value.torchState == TorchState.on
? const Icon(Icons.flashlight_off_rounded)
: const Icon(Icons.flashlight_on_rounded),
onPressed: (){
onPressed: () {
controller.toggleTorch();
setState(() {});
}
},
),
if (!widget.hideGalleryIcon)
GalleryButton.icon(
Expand All @@ -323,8 +253,7 @@ class _AiBarcodeScannerState extends State<AiBarcodeScanner> {
onDetect: onDetect,
controller: controller,
fit: widget.fit,
errorBuilder:
widget.errorBuilder ?? (_, error, ___) => const ErrorBuilder(),
errorBuilder: widget.errorBuilder ?? (_, __, ___) => const ErrorBuilder(),
placeholderBuilder: widget.placeholderBuilder,
scanWindow: widget.scanWindow,
key: widget.key,
Expand All @@ -334,30 +263,27 @@ class _AiBarcodeScannerState extends State<AiBarcodeScanner> {
ValueListenableBuilder<bool?>(
valueListenable: _isSuccess,
builder: (context, isSuccess, __) {
return widget.customOverlayBuilder
?.call(context, isSuccess, controller) ??
return widget.customOverlayBuilder?.call(context, isSuccess, controller) ??
Container(
decoration: ShapeDecoration(
shape: OverlayShape(
borderRadius: widget.borderRadius,
borderColor:
((isSuccess ?? false) && widget.showSuccess)
? widget.successColor
: (!(isSuccess ?? true) && widget.showError)
? widget.errorColor
: widget.borderColor ?? Colors.white,
borderColor: ((isSuccess ?? false) && widget.showSuccess)
? widget.successColor
: (!(isSuccess ?? true) && widget.showError)
? widget.errorColor
: widget.borderColor ?? Colors.white,
borderLength: widget.borderLength,
borderWidth: widget.borderWidth,
cutOutSize: widget.cutOutSize,
cutOutBottomOffset: _cutOutBottomOffset,
cutOutWidth: widget.cutOutWidth,
cutOutHeight: widget.cutOutHeight,
overlayColor:
((isSuccess ?? false) && widget.showSuccess)
? widget.successColor.withOpacity(0.4)
: (!(isSuccess ?? true) && widget.showError)
? widget.errorColor.withOpacity(0.4)
: widget.overlayColor,
overlayColor: ((isSuccess ?? false) && widget.showSuccess)
? widget.successColor.withOpacity(0.4)
: (!(isSuccess ?? true) && widget.showError)
? widget.errorColor.withOpacity(0.4)
: widget.overlayColor,
),
),
);
Expand All @@ -366,11 +292,7 @@ class _AiBarcodeScannerState extends State<AiBarcodeScanner> {
if (!widget.hideGalleryButton)
Align(
alignment: widget.galleryButtonAlignment ??
Alignment.lerp(
Alignment.bottomCenter,
Alignment.center,
0.75,
)!,
Alignment.lerp(Alignment.bottomCenter, Alignment.center, 0.75)!,
child: GalleryButton(
onImagePick: widget.onImagePick,
onDetect: widget.onDetect,
Expand All @@ -388,11 +310,12 @@ class _AiBarcodeScannerState extends State<AiBarcodeScanner> {
widget.onDetect?.call(barcodes);
if (widget.validator != null) {
final isValid = widget.validator!(barcodes);
_isSuccess.value = isValid;
if (!isValid) {
HapticFeedback.heavyImpact();
} else {
HapticFeedback.mediumImpact();
}
HapticFeedback.mediumImpact();
_isSuccess.value = isValid;
}
}
}