249 lines
7.2 KiB
Dart
249 lines
7.2 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:getx_scaffold/getx_scaffold.dart';
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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:mobile_scanner/mobile_scanner.dart';
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import 'package:permission_handler/permission_handler.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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// --- 使用 MobileScanner 的控制器 ---
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final MobileScannerController scannerController = MobileScannerController();
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final RxBool isFlashOn = false.obs;
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final RxBool isProcessingResult = false.obs;
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final RxBool hasPermission = 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 =
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Tween<double>(begin: 0, end: 1).animate(animationController);
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animationController.repeat(reverse: false);
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}
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/// MobileScanner 的 onDetect 回调方法
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void onDetect(BarcodeCapture capture) {
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if (isProcessingResult.value) return;
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final Barcode? barcode = capture.barcodes.firstOrNull;
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if (barcode?.rawValue != null && barcode!.rawValue!.isNotEmpty) {
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isProcessingResult.value = true;
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scannerController.stop();
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animationController.stop();
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renderResult(barcode.rawValue!);
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}
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}
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/// 恢复扫描状态
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void resumeScanner() {
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isProcessingResult.value = false;
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try {
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scannerController.start();
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animationController.repeat(reverse: false);
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} catch (e) {
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print("无法重启相机: $e");
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}
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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 =
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await ImagePicker().pickImage(source: ImageSource.gallery);
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if (imageFile == null) {
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return;
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}
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scannerController.stop();
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animationController.stop();
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showLoading("正在识别...");
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final BarcodeCapture? capture =
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await scannerController.analyzeImage(imageFile.path);
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dismissLoading();
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final Barcode? firstBarcode = capture?.barcodes.firstOrNull;
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if (firstBarcode?.rawValue != null &&
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firstBarcode!.rawValue!.isNotEmpty) {
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final String scanResult = firstBarcode.rawValue!;
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print("相册识别到的内容: $scanResult");
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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, stackTrace) {
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dismissLoading();
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showErrorToast('从相册选择失败，请稍后重试');
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print("scanFromGallery Error: $e\n$stackTrace");
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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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try {
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await scannerController.toggleTorch();
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final currentTorchState = scannerController.value.torchState;
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isFlashOn.value = currentTorchState == TorchState.on;
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} catch (e) {
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print("切换闪光灯失败: $e");
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showErrorToast("无法打开闪光灯");
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}
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}
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/// 翻转相机
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void flipCamera() async {
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await scannerController.switchCamera();
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}
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/// 请求相机权限
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void requestPermission() async {
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var status = await Permission.camera.request();
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hasPermission.value = status.isGranted;
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if (!status.isGranted) {
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if (status.isPermanentlyDenied) {
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showErrorToast('相机权限已被永久拒绝，请到系统设置中开启');
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// 延迟一会再引导用户去设置
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Future.delayed(const Duration(seconds: 2), () => openAppSettings());
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} else {
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showErrorToast('请授予相机权限以使用扫描功能');
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}
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}
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}
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void requestPhotoPermission() async {
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var status = await Permission.photos.request();
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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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/// 处理扫描结果
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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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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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dismissLoading();
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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.code != 0) {
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showToast(result.error);
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dismissLoading();
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resumeScanner(); // 绑定失败也要恢复扫描
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return;
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}
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if (result.data == null) {
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dismissLoading();
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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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await StorageService.to.saveVehicleInfo(vehicle);
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dismissLoading();
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Get.back(result: true);
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} on DioException catch (_) {
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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, _) {
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showErrorToast("处理失败，请稍后重舍");
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resumeScanner();
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} finally {
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if (Get.isDialogOpen ?? false) {
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dismissLoading();
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}
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}
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}
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/// 显示绑定确认对话框
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void showBindDialog(String resultStr) {
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final TextEditingController plateNumberController = TextEditingController();
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// 使用 showConfirmDialog，它有 onCancel 回调
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DialogX.to.showConfirmDialog(
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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,
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autofocus: false,
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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: '确认绑定',
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cancelText: '取消', // showConfirmDialog 有 cancelText
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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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showToast("请输入车牌号");
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// 返回 false 可以阻止弹窗关闭，让用户继续输入
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return false;
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}
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renderResult(resultStr, plateNumber: plateNumber);
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//关闭弹窗
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return true;
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},
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onCancel: () {
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// 如果用户点击取消，恢复扫描
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resumeScanner();
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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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scannerController.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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