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Update build.gradle #769

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fcc0d84
Update build.gradle
Mahmoudmv91 Jul 14, 2025
a2d3163
Update build.gradle
Mahmoudmv91 Jul 14, 2025
5d94960
Update flutter_qr_web.dart
Mahmoudmv91 Aug 30, 2025
bb4c189
Update flutter_qr_web.dart
Mahmoudmv91 Aug 30, 2025
2d2150b
Update flutter_qr_web.dart
Mahmoudmv91 Aug 31, 2025
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14 changes: 9 additions & 5 deletions android/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -25,29 +25,29 @@ apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'

android {
compileSdk 33
compileSdk 35

sourceSets {
main.java.srcDirs += 'src/main/kotlin'
}
defaultConfig {
// minSdkVersion is determined by Native View.
minSdkVersion 20
targetSdkVersion 33
targetSdkVersion 34
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
multiDexEnabled true
}

kotlinOptions {
jvmTarget = '11'
jvmTarget = '17'
}

compileOptions {
// Flag to enable support for the new language APIs
coreLibraryDesugaringEnabled true
// Sets Java compatibility to Java 11
sourceCompatibility JavaVersion.VERSION_11
targetCompatibility JavaVersion.VERSION_11
sourceCompatibility JavaVersion.VERSION_17
targetCompatibility JavaVersion.VERSION_17
}
if (project.android.hasProperty('namespace')) {
namespace 'net.touchcapture.qr.flutterqr'
Expand All @@ -61,3 +61,7 @@ dependencies {
implementation 'com.google.zxing:core:3.5.2'
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.3'
}

kotlin {
jvmToolchain(17)
}
44 changes: 8 additions & 36 deletions lib/src/web/flutter_qr_web.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ import 'dart:async';
import 'dart:core';
import 'dart:html' as html;
import 'dart:js_util';
import 'dart:ui' as ui;
import 'dart:ui_web' as ui show platformViewRegistry;

import 'package:flutter/material.dart';

Expand Down Expand Up @@ -39,11 +39,9 @@ class WebQrView extends StatefulWidget {
static Future<bool> cameraAvailable() async {
final sources =
await html.window.navigator.mediaDevices!.enumerateDevices();
// List<String> vidIds = [];
var hasCam = false;
for (final e in sources) {
if (e.kind == 'videoinput') {
// vidIds.add(e['deviceId']);
hasCam = true;
}
}
Expand All @@ -53,15 +51,12 @@ class WebQrView extends StatefulWidget {

class _WebQrViewState extends State<WebQrView> {
html.MediaStream? _localStream;
// html.CanvasElement canvas;
// html.CanvasRenderingContext2D ctx;
bool _currentlyProcessing = false;

QRViewControllerWeb? _controller;

late Size _size = const Size(0, 0);
Timer? timer;
String? code;
String? _errorMsg;
html.VideoElement video = html.VideoElement();
String viewID = 'QRVIEW-' + DateTime.now().millisecondsSinceEpoch.toString();
Expand All @@ -78,12 +73,12 @@ class _WebQrViewState extends State<WebQrView> {

facing = widget.cameraFacing ?? CameraFacing.front;

// video = html.VideoElement();
WebQrView.vidDiv.children = [video];
// ignore: UNDEFINED_PREFIXED_NAME

// 👇 اینجا مشکل حل شد
ui.platformViewRegistry
.registerViewFactory(viewID, (int id) => WebQrView.vidDiv);
// giving JavaScipt some time to process the DOM changes

Timer(const Duration(milliseconds: 500), () {
start();
});
Expand Down Expand Up @@ -114,7 +109,6 @@ class _WebQrViewState extends State<WebQrView> {
super.dispose();
}

// Platform messages are asynchronous, so we initialize in an async method.
Future<void> _makeCall() async {
if (_localStream != null) {
return;
Expand All @@ -125,10 +119,7 @@ class _WebQrViewState extends State<WebQrView> {
video: VideoOptions(
facingMode: (facing == CameraFacing.front ? 'user' : 'environment'),
));
// dart style, not working properly:
// var stream =
// await html.window.navigator.mediaDevices.getUserMedia(constraints);
// straight JS:

if (_controller == null) {
_controller = QRViewControllerWeb(this);
widget.onPlatformViewCreated(_controller!);
Expand All @@ -137,8 +128,7 @@ class _WebQrViewState extends State<WebQrView> {
widget.onPermissionSet?.call(_controller!, true);
_localStream = stream;
video.srcObject = _localStream;
video.setAttribute('playsinline',
'true'); // required to tell iOS safari we don't want fullscreen
video.setAttribute('playsinline', 'true');
await video.play();
} catch (e) {
cancel();
Expand All @@ -159,17 +149,13 @@ class _WebQrViewState extends State<WebQrView> {

Future<void> _stopStream() async {
try {
// await _localStream.dispose();
_localStream!.getTracks().forEach((track) {
if (track.readyState == 'live') {
track.stop();
}
});
// video.stop();
video.srcObject = null;
_localStream = null;
// _localRenderer.srcObject = null;
// ignore: empty_catches
} catch (e) {}
}

Expand All @@ -180,8 +166,6 @@ class _WebQrViewState extends State<WebQrView> {
final canvas =
html.CanvasElement(width: video.videoWidth, height: video.videoHeight);
final ctx = canvas.context2D;
// canvas.width = video.videoWidth;
// canvas.height = video.videoHeight;
ctx.drawImage(video, 0, 0);
final imgData = ctx.getImageData(0, 0, canvas.width!, canvas.height!);

Expand All @@ -195,15 +179,12 @@ class _WebQrViewState extends State<WebQrView> {

try {
final code = jsQR(imgData.data, canvas.width, canvas.height);
// ignore: unnecessary_null_comparison
if (code != null && code.data != null) {
_scanUpdateController
.add(Barcode(code.data, BarcodeFormat.qrcode, code.data.codeUnits));
}
} on NoSuchMethodError {
// Do nothing, this exception occurs continously in web release when no
// code is found.
// NoSuchMethodError: method not found: 'get$data' on null
// ignore: avoid_print
}
}

Expand Down Expand Up @@ -246,7 +227,7 @@ class _WebQrViewState extends State<WebQrView> {
);
}

void _setCanvasSize(ui.Size size) {
void _setCanvasSize(Size size) {
setState(() {
_size = size;
});
Expand All @@ -262,7 +243,6 @@ class QRViewControllerWeb implements QRViewController {

@override
Future<CameraFacing> flipCamera() async {
// TODO: improve error handling
_state.facing = _state.facing == CameraFacing.front
? CameraFacing.back
: CameraFacing.front;
Expand All @@ -277,29 +257,24 @@ class QRViewControllerWeb implements QRViewController {

@override
Future<bool?> getFlashStatus() async {
// TODO: flash is simply not supported by JavaScipt. To avoid issuing applications, we always return it to be off.
return false;
}

@override
Future<SystemFeatures> getSystemFeatures() {
// TODO: implement getSystemFeatures
throw UnimplementedError();
}

@override
// TODO: implement hasPermissions. Blocking: WebQrView.cameraAvailable() returns a Future<bool> whereas a bool is required
bool get hasPermissions => throw UnimplementedError();

@override
Future<void> pauseCamera() {
// TODO: implement pauseCamera
throw UnimplementedError();
}

@override
Future<void> resumeCamera() {
// TODO: implement resumeCamera
throw UnimplementedError();
}

Expand All @@ -308,19 +283,16 @@ class QRViewControllerWeb implements QRViewController {

@override
Future<void> stopCamera() {
// TODO: implement stopCamera
throw UnimplementedError();
}

@override
Future<void> toggleFlash() async {
// TODO: flash is simply not supported by JavaScipt
return;
}

@override
Future<void> scanInvert(bool isScanInvert) {
// TODO: implement scanInvert
throw UnimplementedError();
}
}
Expand Down