77 lines
2.6 KiB
Dart
77 lines
2.6 KiB
Dart
import 'dart:async';
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import 'package:ai_barcode_scanner/ai_barcode_scanner.dart';
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import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:permission_handler/permission_handler.dart';
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class ScanUtil {
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static Future<void> openScanner({required void Function(String) onResult}) async {
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final controller = MobileScannerController();
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bool hasHandled = false;
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bool validator(BarcodeCapture capture) {
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final code = capture.barcodes.isNotEmpty ? capture.barcodes.first.rawValue : null;
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return code != null && code.isNotEmpty;
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}
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final result = await Get.to<String>(
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() => AiBarcodeScanner(
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controller: controller,
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galleryButtonText: '从相册选择',
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galleryButtonAlignment: const Alignment(0.0, 0.7),
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validator: validator,
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onDetect: (capture) {
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if (hasHandled) return;
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final code = capture.barcodes.isNotEmpty ? capture.barcodes.first.rawValue : null;
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if (code != null && code.isNotEmpty) {
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hasHandled = true;
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Get.back(result: code);
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}
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},
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overlayConfig: const ScannerOverlayConfig(
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scannerBorder: ScannerBorder.corner,
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borderColor: Colors.greenAccent,
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successColor: Colors.lightGreenAccent,
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errorColor: Colors.redAccent,
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borderRadius: 24,
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cornerLength: 60,
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scannerAnimation: ScannerAnimation.fullWidth,
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),
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scanWindow: Rect.fromCenter(
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center: MediaQuery.of(Get.context!).size.center(Offset.zero),
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width: MediaQuery.of(Get.context!).size.width * 0.8,
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height: MediaQuery.of(Get.context!).size.height * 0.5,
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),
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// 异常处理
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errorBuilder: (context, error) {
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String message = "无法启动摄像头，请检查权限";
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return Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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const Icon(Icons.error, color: Colors.red, size: 60),
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const SizedBox(height: 16),
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Text(
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message,
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style: const TextStyle(fontSize: 18, color: Colors.red),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 8),
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ElevatedButton(
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onPressed: () async => await openAppSettings(),
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child: const Text('去开启权限'),
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),
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],
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),
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);
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},
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),
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);
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if (result != null && result.isNotEmpty) {
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onResult(result);
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}
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}
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}
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