public void OnOpened(EMDKManager emdkManagerInstance)
{
// This callback will be issued when the EMDK is ready to use.
textViewStatus.Text = "Status: EMDK open success.";
this.emdkManager = emdkManagerInstance;
try
{
// Acquire the barcode manager resources
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
if (barcodeManager != null)
{
// Add connection listener
barcodeManager.Connection += barcodeManager_Connection;
}
// Enumerate scanner devices
enumerateScanners();
// Set default scanner
spinnerScanners.SetSelection(defaultIndex);
// Set trigger (App default - HARD)
spinnerTriggers.SetSelection(triggerIndex);
}
catch (Exception e)
{
textViewStatus.Text = "Status: BarcodeManager object creation failed.";
Console.WriteLine("Exception:" + e.StackTrace);
}
}
override protected void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Create a BarcodeManager.
manager = new BarcodeManager();
SetContentView(Resource.Layout.Main);
// setup button
Button btn = (Button)FindViewById(Resource.Id.button1);
btn.Click += delegate
{
StartSettingsActivity();
};
// Pass it to ScannerProperties class.
// ScannerProperties cannot be instatiated directly, instead call edit.
configuration = ScannerProperties.Edit(manager);
// Now we can change some Scanner/Device configuration parameters.
// These values are not applied, as long as store method is not called.
configuration.Code39.Enable.Set(true);
configuration.Code39.EnableChecksum.Set(true);
configuration.Code39.FullAscii.Set(true);
configuration.Code39.Length1.Set(20);
configuration.Code39.Length2.Set(2);
configuration.Code39.LengthMode.Set(LengthControlMode.TwoFixed);
configuration.Code39.SendChecksum.Set(false);
configuration.Code39.UserID.Set('x');
configuration.Code128.Enable.Set(true);
configuration.Code128.Length1.Set(6);
configuration.Code128.Length2.Set(2);
configuration.Code128.LengthMode.Set(LengthControlMode.Range);
configuration.Code128.UserID.Set('y');
if (configuration.QrCode.IsSupported)
{
configuration.QrCode.Enable.Set(false);
}
// Change IntentWedge action and category to specific ones.
configuration.IntentWedge.Action.Set("com.datalogic.examples.decode_action");
configuration.IntentWedge.Category.Set("com.datalogic.examples.decode_category");
// From here on, we would like to get a return value instead of an exception in case of error
ErrorManager.EnableExceptions(false);
// Now we are ready to store them
// Second parameter set to true saves configuration in a permanent way.
// After boot settings will be still valid.
int errorCode = configuration.Store(manager, true);
// Check return value.
if (errorCode != ConfigException.Success)
{
Log.Error(LOGTAG, "Error during store", ErrorManager.LastError);
}
}
internal void DeinitScanner()
{
if (_emdkManager != null)
{
if (_scanner != null)
{
try
{
_scanner.Data -= _scanner_Data;
_scanner.Status -= _scanner_Status;
_scanner.Disable();
}
catch (ScannerException ex)
{
}
}
if (_barcodeManager != null)
{
_emdkManager.Release(EMDKManager.FEATURE_TYPE.Barcode);
}
_barcodeManager = null;
_scanner = null;
}
}
public void InitializeScanner()
{
if (scanner == null && EmdkManager != null)
{
try
{
barcodeManager = (BarcodeManager)EmdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
scanner = barcodeManager?.GetDevice(BarcodeManager.DeviceIdentifier.Default);
}
catch (Exception ex)
{
scanner = null;
Log.Debug(TAG, "Scanner Initialize Exception", ex);
}
}
if (scanner != null && !scannerEventsWired)
{
try
{
scanner.Status += Scanner_Status;
scanner.Data += Scanner_Data;
scanner.Enable();
scannerEventsWired = true;
Log.Debug(TAG, "Scanner events are wired successfully.");
}
catch (Exception ex)
{
Log.Debug(TAG, "Scanner Initialize Exception", ex);
}
}
}
protected override void OnPause()
{
base.OnPause();
// The application is in background
// Save the current state of continuous mode flag
isContinuousModeSaved = isContinuousMode;
// Reset continuous flag
isContinuousMode = false;
// De-initialize scanner
DeInitScanner();
if (barcodeManager != null)
{
// Remove connection listener
barcodeManager.Connection -= barcodeManager_Connection;
barcodeManager = null;
// Clear scanner list
scannerList = null;
}
// Release the barcode manager resources
if (emdkManager != null)
{
emdkManager.Release(EMDKManager.FEATURE_TYPE.Barcode);
}
}
void DeinitScanner()
{
if (emdkManager != null)
{
if (scanner != null)
{
try
{
scanner.Data -= scanner_Data;
scanner.Status -= scanner_Status;
scanner.Disable();
}
catch (ScannerException e)
{
Log.Debug(this.Class.SimpleName, "Exception:" + e.Result.Description);
}
}
if (barcodeManager != null)
{
emdkManager.Release(EMDKManager.FEATURE_TYPE.Barcode);
}
barcodeManager = null;
scanner = null;
}
}
public void OnOpened(EMDKManager emdkManagerInstance)
{
// This callback will be issued when the EMDK is ready to use.
textViewStatus.Text = "Status: EMDK open success.";
this.emdkManager = emdkManagerInstance;
try
{
// Acquire the barcode manager resources
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
if (barcodeManager != null)
{
// Add connection listener
barcodeManager.Connection += barcodeManager_Connection;
}
// Enumerate scanner devices
EnumerateScanners();
// Set default scanner
spinnerScannerDevices.SetSelection(defaultIndex);
// Set trigger (App default - HARD)
spinnerTriggers.SetSelection(triggerIndex);
}
catch (System.Exception e)
{
textViewStatus.Text = "Status: BarcodeManager object creation failed.";
Console.WriteLine("Exception:" + e.StackTrace);
}
}
private void Encoded()
{
BarcodeManager hm = new BarcodeManager();
DeltaCore.WorkFlow.SecurityManager sm = new DeltaCore.WorkFlow.SecurityManager();
var datos = new PartListExchangeManager();
var data = datos.sqlDSPartListExchange(Request.QueryString["ex"]);
if (data != null && data.Rows.Count > 0)
{
var buffer = hm.imageToByteArray(hm.QREncode(Request.Url.AbsolutePath, "M"));
codeStage.DataValue = buffer;
lblParte.Text = data.Rows[0]["sPartListBocar"].ToString();
lblDescripcion.Text = data.Rows[0]["sPartListDescription"].ToString() + " \n " + data.Rows[0]["fvmeasure_exchange"].ToString();
codePart.DataValue = hm.imageToByteArray(hm.Barcode128(data.Rows[0]["sPartListBocar"].ToString(), 1));
lblCantidad.Text = data.Rows[0]["iIdPartList"].ToString();
codeQuantity.DataValue = hm.imageToByteArray(hm.Barcode128(data.Rows[0]["iIdPartList"].ToString(), 1));
if (string.IsNullOrEmpty(data.Rows[0]["sFolio"].ToString()) || data.Rows[0]["sFolio"].ToString() == "0")
{
codeSerial.DataValue = hm.imageToByteArray(hm.Barcode128(data.Rows[0]["sFolio"].ToString(), 1));
lblSerie.Text = data.Rows[0]["sFolio"].ToString();
}
else
{
lblSerie.Text = data.Rows[0]["sPreFolio"].ToString();
codeSerial.DataValue = hm.imageToByteArray(hm.Barcode128(data.Rows[0]["sPreFolio"].ToString(), 1));
}
}
}
private void DeinitScanner()
{
try
{
if (_emdkManager != null)
{
if (_scanner != null)
{
try
{
_scanner.CancelRead();
_scanner.Disable();
_scanner.Data -= Scanner_Data;
_scanner.Status -= Scanner_Status;
_scanner.Release();
}
catch (ScannerException e)
{
}
}
}
if (_barcodeManager != null)
{
_emdkManager.Release(EMDKManager.FEATURE_TYPE.Barcode);
}
_barcodeManager = null;
_scanner = null;
}
catch (Exception ex)
{
ErrorMessage("MainActivity - DeinitScanner:" + ex.Message);
}
}
protected override void OnResume()
{
base.OnResume();
Log.Info(LOGTAG, "OnResume");
// If the decoder instance is null, create it.
if (decoder == null)
{
// Remember an onPause call will set it to null.
decoder = new BarcodeManager();
}
// From here on, we want to be notified with exceptions in case of errors.
ErrorManager.EnableExceptions(true);
try
{
// add our class as a listener
decoder.AddReadListener(this);
}
catch (DecodeException e)
{
Log.Error(LOGTAG, "Error while trying to bind a listener to BarcodeManager", e);
}
}
private void DeInitScanner()
{
if (m_EmdkManager != null)
{
if (m_Scanner != null)
{
try
{
m_Scanner.Data -= DataReceived;
m_Scanner.Status -= StatusChanged;
m_Scanner.Disable();
}
catch (ScannerException e)
{
OnStatusChanged?.Invoke(this, new EMDKStatusChangedArgs($"Error: {e.Message}"));
}
}
if (m_BarcodeManager != null)
{
m_EmdkManager.Release(EMDKManager.FEATURE_TYPE.Barcode);
}
m_BarcodeManager = null;
m_Scanner = null;
}
}
void InitScanner()
{
if (m_EmdkManager != null)
{
if (m_BarcodeManager == null)
{
try
{
m_BarcodeManager = (BarcodeManager)m_EmdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
m_Scanner = m_BarcodeManager.GetDevice(BarcodeManager.DeviceIdentifier.Default);
if (m_Scanner != null)
{
m_Scanner.Data -= DataReceived;
m_Scanner.Data += DataReceived;
m_Scanner.Status -= StatusChanged;
m_Scanner.Status += StatusChanged;
}
else
{
OnStatusChanged?.Invoke(this, new EMDKStatusChangedArgs("Failed to enable scanner."));
}
}
catch (ScannerException e)
{
OnStatusChanged?.Invoke(this, new EMDKStatusChangedArgs($"Error: {e.Message}"));
}
catch (Exception ex)
{
OnStatusChanged?.Invoke(this, new EMDKStatusChangedArgs($"Error: {ex.Message}"));
}
}
}
}
public virtual void Delete(HttpContext context)
{
YZRequest request = new YZRequest(context);
int itemid = request.GetInt32("itemid");
using (IYZDbProvider provider = YZDbProviderManager.DefaultProvider)
{
using (IDbConnection cn = provider.OpenConnection())
{
BarcodeManager.DeleteBarcode(provider, cn, itemid);
}
}
}
public virtual object GetMyList(HttpContext context)
{
YZRequest request = new YZRequest(context);
string uid = YZAuthHelper.LoginUserAccount;
using (IYZDbProvider provider = YZDbProviderManager.DefaultProvider)
{
using (IDbConnection cn = provider.OpenConnection())
{
return(BarcodeManager.GetBarcodes(provider, cn, uid, null, null, request.Start, request.Limit));
}
}
}
void InitializeBarcodeManager()
{
_barcodeManager = (BarcodeManager)_emdkManager?.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
if (_barcodeManager == null)
{
return;
}
if (_barcodeManager.SupportedDevicesInfo?.Count > 0)
{
_scanner = _barcodeManager.GetDevice(BarcodeManager.DeviceIdentifier.Default);
}
}
private async void Application_Suspending(object sender, SuspendingEventArgs e)
{
//Debug.WriteLine("Application Suspending");
var deferral = e.SuspendingOperation.GetDeferral();
this.scanningTimer.Dispose();
this.cameraManager.ScanForQRcodes = false;
this.qrAnalyzerCancellationTokenSource.Cancel();
await cameraManager.CleanupCameraAsync();
this.barcodeManager = null;
this.cameraManager = null;
deferral.Complete();
}
void InitScanner()
{
if (emdkManager != null)
{
if (barcodeManager == null)
{
try
{
//Get the feature object such as BarcodeManager object for accessing the feature.
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
scanner = barcodeManager.GetDevice(BarcodeManager.DeviceIdentifier.Default);
if (scanner != null)
{
//Attahch the Data Event handler to get the data callbacks.
scanner.Data += scanner_Data;
//Attach Scanner Status Event to get the status callbacks.
scanner.Status += scanner_Status;
scanner.Enable();
//EMDK: Configure the scanner settings
ScannerConfig config = scanner.GetConfig();
config.SkipOnUnsupported = ScannerConfig.SkipOnUnSupported.None;
config.ScanParams.DecodeLEDFeedback = true;
config.ReaderParams.ReaderSpecific.ImagerSpecific.PickList = ScannerConfig.PickList.Enabled;
config.DecoderParams.Code39.Enabled = true;
config.DecoderParams.Code128.Enabled = false;
scanner.SetConfig(config);
}
else
{
displayStatus("Failed to enable scanner.\n");
}
}
catch (ScannerException e)
{
displayStatus("Error: " + e.Message);
}
catch (Exception ex)
{
displayStatus("Error: " + ex.Message);
}
}
}
}
public void OnClosed()
{
if (emdkManager != null)
{
if (barcodeManager != null)
{
// Remove connection listener
barcodeManager.Connection -= BarcodeManager_Connection;
barcodeManager = null;
}
// Release all the resources
emdkManager.Release();
emdkManager = null;
}
}
public void OnOpened(EMDKManager emdkManagerInstance)
{
this.emdkManager = emdkManagerInstance;
try
{
// Acquire the barcode manager resources
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
InitScanner();
}
catch (Exception e)
{
//TODO Log here
Console.WriteLine("Exception:" + e.StackTrace);
}
}
public void OnClosed()
{
// This callback will be issued when the EMDK closes unexpectedly.
#region Ring Scanner On Closed
if (emdkManager != null)
{
if (barcodeManager != null)
{
barcodeManager = null;
}
// Release all the resources
emdkManager.Release();
emdkManager = null;
}
#endregion
}
public virtual object Save(HttpContext context)
{
YZRequest request = new YZRequest(context);
JObject jPost = request.GetPostData <JObject>();
Barcode barcode = jPost.ToObject <Barcode>();
barcode.Account = YZAuthHelper.LoginUserAccount;
barcode.CreateAt = DateTime.Now;
using (IYZDbProvider provider = YZDbProviderManager.DefaultProvider)
{
using (IDbConnection cn = provider.OpenConnection())
{
BarcodeManager.Insert(provider, cn, barcode);
return(barcode);
}
}
}
public void OnClosed()
{
if (emdkManager != null)
{
if (barcodeManager != null)
{
// Remove connection listener
barcodeManager.Connection -= barcodeManager_Connection;
barcodeManager = null;
}
// Release all the resources
emdkManager.Release();
emdkManager = null;
}
textViewStatus.Text = "Status: EMDK closed unexpectedly! Please close and restart the application.";
}
protected override void OnResume()
{
base.OnResume();
// The application is in foreground
// Restore continuous mode flag
isContinuousMode = isContinuousModeSaved;
// Acquire the barcode manager resources
if (emdkManager != null)
{
try
{
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
if (barcodeManager != null)
{
// Add connection listener
barcodeManager.Connection += barcodeManager_Connection;
}
// Enumerate scanners
EnumerateScanners();
// Set selected scanner
spinnerScanners.SetSelection(scannerIndex);
// Set selected trigger
spinnerTriggers.SetSelection(triggerIndex);
if (horizontal)
{
buttonStartScan.SetWidth(120);
buttonStartScan.SetTextKeepState("Start", TextView.BufferType.Editable);
buttonStopScan.SetWidth(120);
buttonStopScan.SetTextKeepState("Stop", TextView.BufferType.Editable);
}
}
catch (Exception e)
{
textViewStatus.Text = "Status: BarcodeManager object creation failed.";
Console.WriteLine("Exception: " + e.StackTrace);
}
}
}
protected override void OnDestroy()
{
base.OnDestroy();
DeInitScanner();
// Remove connection listener
if (barcodeManager != null)
{
barcodeManager.Connection -= barcodeManager_Connection;
barcodeManager = null;
}
// Release all the resources
if (emdkManager != null)
{
emdkManager.Release();
emdkManager = null;
}
}
void InitScanner()
{
if (emdkManager != null)
{
if (barcodeManager == null)
{
try
{
//Get the feature object such as BarcodeManager object for accessing the feature.
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
scanner = barcodeManager.GetDevice(BarcodeManager.DeviceIdentifier.Default);
if (scanner != null)
{
//EMDK: Configure the scanner settings
/*ScannerConfig config = scanner.GetConfig();
* config.SkipOnUnsupported = ScannerConfig.SkipOnUnSupported.None;
* config.ScanParams.DecodeLEDFeedback = true;
* config.ReaderParams.ReaderSpecific.ImagerSpecific.PickList = ScannerConfig.PickList.Enabled;
* config.DecoderParams.Code39.Enabled = true;
* config.DecoderParams.Code128.Enabled = false;
* scanner.SetConfig(config); */
InterfaceConfig t = scanner.GetInterfaceConfig();
t.DisplayBluetoothAddressBarcode = true;
}
else
{
//TODO log status here
}
}
catch (ScannerException e)
{
//TODO log error here
}
catch (Exception ex)
{
//TODO log error here
}
}
}
}
private int triggerIndex = 0; // Keep the selected trigger
#endregion Fields
#region Methods
public void OnClosed()
{
// This callback will be issued when the EMDK closes unexpectedly.
if (emdkManager != null)
{
if (barcodeManager != null)
{
// Remove connection listener
barcodeManager.Connection -= barcodeManager_Connection;
barcodeManager = null;
}
// Release all the resources
emdkManager.Release();
emdkManager = null;
}
textViewStatus.Text = "Status: EMDK closed unexpectedly! Please close and restart the application.";
}
protected override void OnDestroy()
{
base.OnDestroy();
// De-initialize scanner
DeInitScanner();
// Clean up the objects created by EMDK manager
if (barcodeManager != null)
{
// Remove connection listener
barcodeManager.Connection -= barcodeManager_Connection;
barcodeManager = null;
}
if (emdkManager != null)
{
emdkManager.Release();
emdkManager = null;
}
}
protected override void OnResume()
{
base.OnResume();
#region Ring Scanner On Resume
if (emdkManager != null)
{
try
{
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
}
catch (Exception e)
{
//TODO: log here
Console.WriteLine("Exception: " + e.StackTrace);
}
#endregion
}
}
protected override void OnPause()
{
base.OnPause();
#region Ring Scanner On Pause
// De-initialize scanner
DeInitScanner();
if (barcodeManager != null)
{
barcodeManager = null;
}
// Release the barcode manager resources
if (emdkManager != null)
{
emdkManager.Release(EMDKManager.FEATURE_TYPE.Barcode);
}
#endregion
}
public LetterAppService(DepartmentManager departmentManager, SerialNumberManager serialNumberManager, BarcodeManager barcodeManager, ILetterRepository letterRepository, UnitOfWork unitOfWork, IOptions <CommonSettings> commonSettings, IBarcodeLogRepository barcodeLogRepository, IBarcodeRepository barcodeRepository, IBackLetterRepository backLetterRepository, ICancelLetterRepository cancelLetterRepository, BoxManager boxManager, ISortingListDetailRepository sortingListDetailRepository, ISortingListRepository sortingListRepository, ISortingRepository sortingRepository, IPlaceRepository placeRepository, IPlaceWardenRepository placeWardenRepository, IExchangeObjectRepository exchangeObjectRepository, IExchangeObjectSignerRepository objectSignerRepository)
{
_departmentManager = departmentManager;
_serialNumberManager = serialNumberManager;
_barcodeManager = barcodeManager;
_letterRepository = letterRepository;
_unitOfWork = unitOfWork;
_commonSettings = commonSettings;
_barcodeLogRepository = barcodeLogRepository;
_barcodeRepository = barcodeRepository;
_backLetterRepository = backLetterRepository;
_cancelLetterRepository = cancelLetterRepository;
_boxManager = boxManager;
_sortingListDetailRepository = sortingListDetailRepository;
_sortingListRepository = sortingListRepository;
_sortingRepository = sortingRepository;
_placeRepository = placeRepository;
_placeWardenRepository = placeWardenRepository;
_exchangeObjectRepository = exchangeObjectRepository;
_objectSignerRepository = objectSignerRepository;
}
public void Destroy()
{
try
{
Log.Debug(TAG, "Disposing scanning objects.");
UninitializeScanner();
scanner?.Release();
scanner?.Dispose();
scanner = null;
ScanDataReceived = null;
barcodeManager = null;
EmdkManager?.Release();
EmdkManager = null;
}
catch (Exception ex)
{
Log.Debug(TAG, "Scanner crash on Destroy", ex);
}
}
public void OnOpened(EMDKManager emdkManager)
{
mEmdkManager = emdkManager;
if (null == mScanner)
{
// Get Barcode Manager
mBarcodeManager = (BarcodeManager)mEmdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
if (null == mBarcodeManager)
{
mStatusTextView.Text = "Impossible to get BarcodeManager handle";
return;
}
mScanner = mBarcodeManager.GetDevice(BarcodeManager.DeviceIdentifier.InternalImager1);
if (null == mScanner)
{
mStatusTextView.Text = "Impossible to get Scanner handle";
return;
}
try
{
mScanner.AddDataListener(this);
mScanner.AddStatusListener(this);
mScanner.TriggerType = Scanner.TriggerTypes.Hard;
mScanner.Enable();
mScanner.Read(); // Start an Async scann
}
catch (ScannerException e)
{
e.PrintStackTrace();
}
Toast.MakeText(this, "Press Hard Scan Button to start scanning...", ToastLength.Long).Show();
}
}
public void OnOpened(EMDKManager emdkManagerInstance)
{
emdkManager = emdkManagerInstance;
try
{
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
if (barcodeManager != null)
{
barcodeManager.Connection += BarcodeManager_Connection;
}
var scannerlist = barcodeManager.SupportedDevicesInfo;
foreach (var item in scannerlist)
{
Console.WriteLine(item.FriendlyName);
Console.WriteLine(item.Class);
Console.WriteLine(item.DeviceIdentifier);
}
scanner = barcodeManager.GetDevice(scannerlist.Where(d => d.FriendlyName.Contains("2D Barcode")).Single());
scanner.Data += Scanner_Data;
scanner.Status += Scanner_Status;
scanner.TriggerType = Scanner.TriggerTypes.Hard;
try
{
scanner.Enable();
}
catch (ScannerException ex)
{
Console.WriteLine(ex.StackTrace);
//throw;
}
}
catch (System.Exception ex)
{
Console.WriteLine("PedidoActivity -> OnOpened", ex.Message);
}
}
void barcodeManager_Connection(object sender, BarcodeManager.ScannerConnectionEventArgs e)
{
String status;
String scannerName = "";
ScannerInfo scannerInfo = e.P0;
BarcodeManager.ConnectionState connectionState = e.P1;
String statusBT = connectionState.ToString();
String scannerNameBT = scannerInfo.FriendlyName;
if (scannerList.Count != 0)
{
scannerName = scannerList[scannerIndex].FriendlyName;
}
if (scannerName.ToLower().Equals(scannerNameBT.ToLower()))
{
status = "Status: " + scannerNameBT + ":" + statusBT;
RunOnUiThread(() => textViewStatus.Text = status);
if(connectionState == BarcodeManager.ConnectionState.Connected)
{
// Bluetooth scanner connected
initScanner();
setTrigger();
setDecoders();
}
if(connectionState == BarcodeManager.ConnectionState.Disconnected)
{
// Bluetooth scanner disconnected
deInitScanner();
RunOnUiThread(() => EnableUIControls(true));
}
}
else
{
status = "Status: " + statusString + " " + scannerNameBT + ":" + statusBT;
RunOnUiThread(() => textViewStatus.Text = status);
}
}
protected override void OnPause()
{
base.OnPause();
// The application is in background
// Reset continuous flag
isContinuousMode = false;
// De-initialize scanner
deInitScanner();
if (barcodeManager != null)
{
// Remove connection listener
barcodeManager.Connection -= barcodeManager_Connection;
barcodeManager = null;
// Clear scanner list
scannerList = null;
}
// Release the barcode manager resources
if (emdkManager != null)
{
emdkManager.Release(EMDKManager.FEATURE_TYPE.Barcode);
}
}
void barcodeManager_Connection(object sender, BarcodeManager.ScannerConnectionEventArgs e)
{
string status;
string scannerName = "";
ScannerInfo scannerInfo = e.P0;
BarcodeManager.ConnectionState connectionState = e.P1;
string statusBT = connectionState.ToString();
string scannerNameBT = scannerInfo.FriendlyName;
if (scannerList.Count != 0)
{
scannerName = scannerList[scannerIndex].FriendlyName;
}
if (scannerName.ToLower().Equals(scannerNameBT.ToLower()))
{
status = "Status: " + scannerNameBT + ":" + statusBT;
RunOnUiThread(() => textViewStatus.Text = status);
if(connectionState == BarcodeManager.ConnectionState.Connected)
{
// Bluetooth scanner connected
// Restore continuous mode flag
isContinuousMode = isContinuousModeSaved;
// Initialize scanner
InitScanner();
SetTrigger();
SetDecoders();
}
if(connectionState == BarcodeManager.ConnectionState.Disconnected)
{
// Bluetooth scanner disconnected
// Save the current state of continuous mode flag
isContinuousModeSaved = isContinuousMode;
// Reset continuous flag
isContinuousMode = false;
// De-initialize scanner
DeInitScanner();
// Enable UI Controls
RunOnUiThread(() => EnableUIControls(true));
}
}
else
{
status = "Status: " + statusString + " " + scannerNameBT + ":" + statusBT;
RunOnUiThread(() => textViewStatus.Text = status);
}
}
protected override void OnResume()
{
base.OnResume();
// The application is in foreground
// Set continuous flag
isContinuousMode = checkBoxContinuous.Checked;
// Acquire the barcode manager resources
if (emdkManager != null)
{
try
{
barcodeManager = (BarcodeManager)emdkManager.GetInstance(EMDKManager.FEATURE_TYPE.Barcode);
if (barcodeManager != null)
{
// Add connection listener
barcodeManager.Connection += barcodeManager_Connection;
}
// Enumerate scanners
enumerateScanners();
// Set selected scanner
spinnerScanners.SetSelection(scannerIndex);
// Set selected trigger
spinnerTriggers.SetSelection(triggerIndex);
}
catch (Exception e)
{
textViewStatus.Text = "Status: BarcodeManager object creation failed.";
Console.WriteLine("Exception: " + e.StackTrace);
}
}
}
protected override void OnDestroy()
{
base.OnDestroy();
// De-initialize scanner
deInitScanner();
// Clean up the objects created by EMDK manager
if (barcodeManager != null)
{
// Remove connection listener
barcodeManager.Connection -= barcodeManager_Connection;
barcodeManager = null;
}
if (emdkManager != null)
{
emdkManager.Release();
emdkManager = null;
}
}
