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130 lines
3.7 KiB
130 lines
3.7 KiB
import 'dart:async';
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import 'dart:io' show Platform;
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import 'package:flutter/material.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/services.dart';
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import 'package:barcode_scan/barcode_scan.dart';
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import 'package:akuCommunity/utils/screenutil.dart';
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import 'package:akuCommunity/routers/page_routers.dart';
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class AppBarAction extends StatefulWidget {
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final IconData icon;
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final String title;
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AppBarAction({Key key, this.icon, this.title}) : super(key: key);
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@override
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_AppBarActionState createState() => _AppBarActionState();
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}
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class _AppBarActionState extends State<AppBarAction> {
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ScanResult scanResult;
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final _flashOnController = TextEditingController(text: "打开闪光灯");
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final _flashOffController = TextEditingController(text: "关闭闪光灯");
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final _cancelController = TextEditingController(text: "关闭");
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var _aspectTolerance = 0.00;
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var _numberOfCameras = 0;
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var _selectedCamera = -1;
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var _useAutoFocus = true;
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var _autoEnableFlash = false;
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static final _possibleFormats = BarcodeFormat.values.toList()
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..removeWhere((e) => e == BarcodeFormat.unknown);
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List<BarcodeFormat> selectedFormats = [..._possibleFormats];
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void initState() {
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super.initState();
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Future.delayed(Duration.zero, () async {
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_numberOfCameras = await BarcodeScanner.numberOfCameras;
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setState(() {});
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});
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}
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Future scan() async {
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try {
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var options = ScanOptions(
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strings: {
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"cancel": _cancelController.text,
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"flash_on": _flashOnController.text,
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"flash_off": _flashOffController.text,
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},
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restrictFormat: selectedFormats,
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useCamera: _selectedCamera,
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autoEnableFlash: _autoEnableFlash,
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android: AndroidOptions(
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aspectTolerance: _aspectTolerance,
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useAutoFocus: _useAutoFocus,
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),
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);
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var result = await BarcodeScanner.scan(options: options);
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setState(() => scanResult = result);
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} on PlatformException catch (e) {
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var result = ScanResult(
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type: ResultType.Error,
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format: BarcodeFormat.unknown,
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);
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if (e.code == BarcodeScanner.cameraAccessDenied) {
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setState(() {
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result.rawContent = 'The user did not grant the camera permission!';
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});
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} else {
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result.rawContent = 'Unknown error: $e';
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}
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setState(() {
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scanResult = result;
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});
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}
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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margin: EdgeInsets.only(right: Screenutil.length(32)),
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child: InkWell(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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widget.icon,
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color: Color(0xff333333),
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),
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SizedBox(height: Screenutil.length(4)),
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Text(
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widget.title,
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style: TextStyle(
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fontSize: Screenutil.size(20),
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color: Color(0xff333333),
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),
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)
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],
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),
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onTap: () {
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switch (widget.title) {
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case '扫一扫':
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scan();
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break;
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case '消息':
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Navigator.pushNamed(
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context, PageName.message_center_page.toString());
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break;
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case '购物车':
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Navigator.pushNamed(
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context, PageName.market_cart_page.toString());
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break;
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case '分类':
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Navigator.pushNamed(
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context, PageName.market_class_page.toString());
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break;
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default:
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}
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}),
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);
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}
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}
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