249 lines
7.3 KiB
Dart
249 lines
7.3 KiB
Dart
import 'dart:io';
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import 'dart:typed_data';
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import 'package:flutter/material.dart';
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import 'package:getx_scaffold/getx_scaffold.dart';
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import 'package:image/image.dart' as img;
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import 'package:image_picker/image_picker.dart';
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import 'package:ln_jq_app/common/model/base_model.dart';
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import 'package:ln_jq_app/common/model/vehicle_info.dart';
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import 'package:ln_jq_app/storage_service.dart';
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import 'package:qr_code_scanner_plus/qr_code_scanner_plus.dart';
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import 'package:zxing_lib/common.dart';
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import 'package:zxing_lib/qrcode.dart';
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import 'package:zxing_lib/zxing.dart';
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class QrCodeController extends GetxController
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with BaseControllerMixin, GetSingleTickerProviderStateMixin {
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@override
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String get builderId => 'qrcode';
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// --- Animation ---
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late final AnimationController animationController;
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late final Animation<double> scanAnimation;
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// --- QR Scanning ---
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final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
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QRViewController? qrViewController;
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final Rx<Barcode?> result = Rx<Barcode?>(null);
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final RxBool isFlashOn = false.obs;
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@override
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void onInit() {
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super.onInit();
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requestPermission();
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animationController = AnimationController(
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duration: const Duration(milliseconds: 2500),
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vsync: this,
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);
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scanAnimation = Tween<double>(begin: 0, end: 1).animate(animationController);
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animationController.repeat(reverse: false);
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}
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/// 当 QRView 创建时调用
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void onQRViewCreated(QRViewController controller) {
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this.qrViewController = controller;
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// 监听扫描到的数据
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controller.scannedDataStream.listen((scanData) {
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if (scanData.code != null && result.value?.code != scanData.code) {
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result.value = scanData;
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qrViewController?.pauseCamera();
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animationController.stop();
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renderResult(scanData.code!);
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}
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});
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}
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void resumeScanner() {
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result.value = null;
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qrViewController?.resumeCamera();
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animationController.repeat(reverse: false);
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}
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/// 从相册选择图片并扫描二维码
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void scanFromGallery() async {
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try {
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final XFile? imageFile = await ImagePicker().pickImage(source: ImageSource.gallery);
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if (imageFile == null) return; // 用户取消了选择
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qrViewController?.pauseCamera();
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animationController.stop();
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String? scanResult;
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try {
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final image = img.decodeImage(await File(imageFile.path).readAsBytes());
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if (image != null) {
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//扫描图片
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final pixels = Int32List.fromList(
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image.map((pixel) {
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return (pixel.a.toInt() << 24) |
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(pixel.r.toInt() << 16) |
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(pixel.g.toInt() << 8) |
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pixel.b.toInt();
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}).toList(),
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);
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final source = RGBLuminanceSource(image.width, image.height, pixels);
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final bitmap = BinaryBitmap(HybridBinarizer(source));
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final reader = QRCodeReader();
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final result = reader.decode(bitmap);
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scanResult = result.text;
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}
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} on NotFoundException {
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scanResult = null;
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} catch (e) {
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//异常
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scanResult = null;
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}
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if (scanResult != null) {
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renderResult(scanResult);
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} else {
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showErrorToast('未识别到二维码');
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resumeScanner();
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}
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} catch (e) {
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showErrorToast('从相册选择失败');
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resumeScanner();
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}
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}
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/// 切换闪光灯
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void toggleFlash() async {
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await qrViewController?.toggleFlash();
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isFlashOn.value = (await qrViewController?.getFlashStatus()) ?? false;
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}
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/// 翻转相机
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void flipCamera() async {
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await qrViewController?.flipCamera();
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}
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void requestPermission() async {
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if (Platform.isIOS) {
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var status = await Permission.camera.request();
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if (status.isGranted) {
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} else if (status.isPermanentlyDenied) {
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openAppSettings();
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} else {
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showErrorToast('需要相机权限才能扫描二维码');
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}
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return;
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}
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final bool results = await requestCameraPermission();
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if (!results) {
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showErrorToast('相机权限未被授予，请到权限管理中打开');
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}
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}
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void requestPhotoPermission() async {
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if (Platform.isAndroid) {
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final bool results = await requestPhotosPermission();
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if (!results) {
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showErrorToast('相册权限未被授予，请到权限管理中打开');
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} else {
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scanFromGallery();
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}
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}
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if (Platform.isIOS) {
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var status = await Permission.photos.request();
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print("权限状态: $status"); // 在控制台看这个输出
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if (status.isGranted) {
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scanFromGallery();
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} else if (status.isPermanentlyDenied) {
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openAppSettings();
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} else {
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showErrorToast('需要相册权限才能从相册中选择图片');
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}
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}
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}
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//扫码结果处理 //如果绑定接口返回的data为null 需要手动编辑车牌
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void renderResult(String resultStr, {plateNumber}) async {
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showLoading("正在获取车辆信息...");
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try {
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/*var responseData = await HttpService.to.get(
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"appointment/truck/base-info?vin=$resultStr",
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);*/
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final Map<String, dynamic> requestData = {
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"code": resultStr,
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"phone": StorageService.to.phone,
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};
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if (plateNumber != null && plateNumber.isNotEmpty) {
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requestData['plateNumber'] = plateNumber;
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}
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var responseData = await HttpService.to.post(
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"appointment/truck/bindTruck",
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data: requestData,
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);
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if (responseData == null) {
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showToast('无法获取车辆信息，请检查网络或稍后重试');
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resumeScanner();
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return;
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}
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var result = BaseModel.fromJson(responseData.data);
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if (result.data == null) {
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showBindDialog(resultStr);
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return;
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}
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final vehicle = VehicleInfo.fromJson(result.data as Map<String, dynamic>);
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//保存使用
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await StorageService.to.saveVehicleInfo(vehicle);
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Get.back(result: true);
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} on DioException catch (e) {
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showErrorToast("网络请求失败，请稍后重试");
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resumeScanner();
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} catch (e, stackTrace) {
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showErrorToast("处理失败，请稍后重试");
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resumeScanner(); // 未知异常，恢复扫描
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} finally {
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dismissLoading();
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}
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}
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void showBindDialog(String resultStr) {
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final TextEditingController plateNumberController = TextEditingController();
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DialogX.to.showNoticeDialog(
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icon: DialogIcon.info,
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title: '请输入车牌号',
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barrierDismissible: false,
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content: TextField(
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controller: plateNumberController, // 绑定 controller
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autofocus: false, // 弹窗出现时自动获取焦点，方便用户直接输入
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decoration: const InputDecoration(
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hintText: '请输入完整的车牌号',
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border: OutlineInputBorder(),
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contentPadding: EdgeInsets.symmetric(horizontal: 12.0),
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),
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),
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confirmText: '确认',
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onConfirm: () {
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final String plateNumber = plateNumberController.text.trim();
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if (plateNumber.isEmpty) {
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resumeScanner();
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showToast("请输入车牌号");
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return;
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}
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renderResult(resultStr, plateNumber: plateNumber);
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},
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);
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}
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@override
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void onClose() {
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qrViewController?.dispose();
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animationController.dispose();
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super.onClose();
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}
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}
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