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BarcodeScanAndCountActivity.cs
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BarcodeScanAndCountActivity.cs
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using System.Text;
using Android;
using Android.Content.PM;
using AndroidX.AppCompat.App;
using AndroidX.Core.App;
using AndroidX.Core.Content;
using IO.Scanbot.Sdk.Barcode;
using IO.Scanbot.Sdk.Barcode.Entity;
using IO.Scanbot.Sdk.Barcode.UI;
using IO.Scanbot.Sdk.Barcode_scanner;
namespace BarcodeSDK.NET.Droid.Activities
{
[Activity(Theme = "@style/AppTheme")]
public class BarcodeScanAndCountActivity : AppCompatActivity
{
private BarcodeScanAndCountView scanAndCountView;
private TextView resultView;
private Button _startScanningButton;
private Button _continueScanningButton;
private const int REQUEST_PERMISSION_CODE = 200;
private static readonly string[] permissions = new string[] { Manifest.Permission.Camera };
private bool flashEnabled = false;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.barcode_scan_and_count_activity);
var barcodeDetector = new ScanbotBarcodeScannerSDK(this).CreateBarcodeDetector();
barcodeDetector.ModifyConfig(detectorConfig =>
{
var defaultConfig = new BarcodeScannerAdditionalConfig();
detectorConfig.SetBarcodeFormats(BarcodeTypes.Instance.AcceptedTypes);
detectorConfig.SetAdditionalConfig(defaultConfig.Copy(codeDensity: BarcodeDensity.High));
detectorConfig.SetEngineMode(EngineMode.NextGen);
detectorConfig.SetSaveCameraPreviewFrame(false);
});
resultView = FindViewById<TextView>(Resource.Id.result);
resultView.Visibility = Android.Views.ViewStates.Gone;
scanAndCountView = FindViewById<BarcodeScanAndCountView>(Resource.Id.camera);
scanAndCountView.InitCamera();
scanAndCountView.InitDetectionBehavior(
barcodeDetector,
new BarcodeScanCountViewDelegate(
scanAndCountView,
barcodeSnanningResult: HandleBarcodeSnanningResult
)
);
//scanAndCountView.CounterOverlayController.SetBarcodeAppearanceDelegate(
// getPolygonStyle: (defaultStyle, _) => defaultStyle.Copy(
// fillHighlightedColor: Color.Black,
// fillColor: Color.Yellow,
// strokeColor: Color.AliceBlue,
// strokeHighlightedColor: Color.Orange
// ));
FindViewById<Button>(Resource.Id.flash).Click += delegate
{
flashEnabled = !flashEnabled;
scanAndCountView.ViewController.UseFlash(flashEnabled);
};
_startScanningButton = FindViewById<Button>(Resource.Id.startScanning);
_startScanningButton.Click += delegate
{
scanAndCountView.ViewController.ScanAndCount();
_startScanningButton.Visibility = Android.Views.ViewStates.Gone;
_continueScanningButton.Visibility = Android.Views.ViewStates.Visible;
};
_continueScanningButton = FindViewById<Button>(Resource.Id.continueScanning);
_continueScanningButton.Click += delegate
{
scanAndCountView.ViewController.ContinueScanning();
_startScanningButton.Visibility = Android.Views.ViewStates.Visible;
_continueScanningButton.Visibility = Android.Views.ViewStates.Gone;
};
}
private void HandleBarcodeSnanningResult(IDictionary<BarcodeItem, Java.Lang.Integer> barcodes)
{
var sb = new StringBuilder();
foreach(var barcode in barcodes)
{
sb.Append($"{barcode.Key.TextWithExtension} - {barcode.Value} \n");
}
resultView.Text = sb.ToString();
resultView.Visibility = Android.Views.ViewStates.Visible;
}
protected override void OnResume()
{
base.OnResume();
var status = ContextCompat.CheckSelfPermission(this, permissions[0]);
if (status != Permission.Granted)
{
ActivityCompat.RequestPermissions(this, permissions, REQUEST_PERMISSION_CODE);
}
}
private class BarcodeScanCountViewDelegate : Java.Lang.Object, IBarcodeScanCountViewCallback
{
private readonly BarcodeScanAndCountView _currentScanAndCountView;
private readonly Action _licenseErrorHandler;
private readonly Action<IDictionary<BarcodeItem, Java.Lang.Integer>> _barcodeScanningResult;
private readonly Action _barcodeScanStarted;
public BarcodeScanCountViewDelegate(
BarcodeScanAndCountView currentScanAndCountView,
Action licenseErrorHandler = null,
Action<IDictionary<BarcodeItem, Java.Lang.Integer>> barcodeSnanningResult = null,
Action barcodeScanStarted = null)
{
_currentScanAndCountView = currentScanAndCountView;
_licenseErrorHandler = licenseErrorHandler;
_barcodeScanningResult = barcodeSnanningResult;
_barcodeScanStarted = barcodeScanStarted;
}
public void OnCameraOpen()
{
}
public void OnLicenseError()
{
_licenseErrorHandler?.Invoke();
}
public void OnScanAndCountFinished(IList<BarcodeItem> barcodes)
{
_barcodeScanningResult?.Invoke(_currentScanAndCountView.CountedBarcodes);
}
public void OnScanAndCountStarted()
{
_barcodeScanStarted?.Invoke();
}
}
}
}