import 'package:aku_community_manager/tools/screen_tool.dart';
import 'package:aku_community_manager/ui/widgets/common/aku_back_button.dart';
import 'package:bot_toast/bot_toast.dart';
import 'package:flutter/material.dart';
import 'package:qr_code_scanner/qr_code_scanner.dart';

class ScanPage extends StatefulWidget {
  ScanPage({Key key}) : super(key: key);

  @override
  _ScanPageState createState() => _ScanPageState();
}

class _ScanPageState extends State<ScanPage> {
  GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
  QRViewController _qrViewController;
  String tempText;

  @override
  void dispose() {
    _qrViewController?.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Stack(
        children: [
          QRView(
            key: qrKey,
            onQRViewCreated: (controller) {
              _qrViewController = controller;
              controller.scannedDataStream.listen((event) {
                if (tempText != event) {
                  tempText = event;
                  BotToast.showText(text: event);
                }
              });
            },
          ),
          Center(
            child: Container(
              height: 200,
              width: 200,
              decoration: BoxDecoration(
                borderRadius: BorderRadius.circular(8),
                border: Border.all(
                  color: Colors.red,
                  width: 1,
                ),
              ),
            ),
          ),
          Positioned(
            left: 10,
            top: 10 + statusBarHeight,
            child: Material(
              color: Colors.black45,
              borderRadius: BorderRadius.circular(40),
              child: AkuBackButton.close(brightness: Brightness.dark),
            ),
          ),
        ],
      ),
    );
  }
}