prs/prs.mobile.new/PRS.Mobile/Modules/Scanner/ScannerPage.xaml.cs

using Comal.Classes;
using InABox.Core;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Threading.Tasks;
using Xamarin.Essentials;
using Xamarin.Forms;
using ZXing;
using Xamarin.Forms.PlatformConfiguration.AndroidSpecific;
using XF.Material.Forms.UI.Dialogs;
using InABox.Mobile;
using LogType = InABox.Core.LogType;

namespace PRS.Mobile
{

    public class ScannerPageItemScannedArgs : EventArgs
    {
        public String Text { get; set; }
        
        public ScannerPageItemScannedArgs(String text)
        {
            Text = text;
        }
    }
    
    public partial class ScannerPage
    {
        bool bProcessing = false;
        
        public Func<ScannerPageItemScannedArgs, Task> ItemScanned;

        public ScannerPage()
        {
            InitializeComponent();
            
            var options = new ZXing.Mobile.MobileBarcodeScanningOptions()
            {
                PossibleFormats = new List<ZXing.BarcodeFormat>() { ZXing.BarcodeFormat.QR_CODE },
                AutoRotate = false,
                TryInverted = true,
                TryHarder = true,
            };
            _scanView.Options = options;
            _scanView.IsAnalyzing = false;
            _scanView.IsScanning = true;
        }

        protected override void OnAppearing()
        {
            base.OnAppearing();
            _scanView.IsAnalyzing = true;

        }

        protected override void OnDisappearing()
        {
            _scanView.IsAnalyzing = false;
            base.OnDisappearing();
        }

        
        public async void _scanView_OnScanResult(ZXing.Result result)
        {
            if (bProcessing)
                return;
            bProcessing = true;
            Vibration.Vibrate();
            if (ItemScanned != null)
                await ItemScanned?.Invoke(new ScannerPageItemScannedArgs(result.Text))!;
            bProcessing = false;
        }
        
    }
}