public void UITestBackdoorScan (string param)
{
var expectedFormat = ZXing.BarcodeFormat.QR_CODE;
Enum.TryParse (param, out expectedFormat);
var opts = new ZXing.Mobile.MobileBarcodeScanningOptions {
PossibleFormats = new List<ZXing.BarcodeFormat> { expectedFormat }
};
System.Diagnostics.Debug.WriteLine ("Scanning " + expectedFormat);
var scanPage = new ZXingScannerPage (opts);
scanPage.OnScanResult += (result) => {
scanPage.IsScanning = false;
Device.BeginInvokeOnMainThread (() => {
var format = result?.BarcodeFormat.ToString () ?? string.Empty;
var value = result?.Text ?? string.Empty;
MainPage.Navigation.PopAsync ();
MainPage.DisplayAlert ("Barcode Result", format + "|" + value, "OK");
});
};
MainPage.Navigation.PushAsync (scanPage);
}
public async Task Navigate()
{
ZXing.Mobile.MobileBarcodeScanner option = new ZXing.Mobile.MobileBarcodeScanner();
var scanner = new ZXing.Mobile.MobileBarcodeScanningOptions()
{
TryHarder = true,
AutoRotate = false,
TryInverted = true,
DelayBetweenContinuousScans = 2000,
};
ZXingScannerPage scanPage = new ZXingScannerPage(scanner);
await Navigation.PushAsync(scanPage);
scanPage.OnScanResult += (result) =>
{
scanPage.IsScanning = false;
ZXing.BarcodeFormat barcodeFormat = result.BarcodeFormat;
string type = barcodeFormat.ToString();
Device.BeginInvokeOnMainThread(() =>
{
Navigation.PopAsync();
DisplayAlert("The Barcode type is : " + type, "The text is : " + result.Text, "OK");
});
};
}
private async void ScanQRCode(object obj)
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions
{
PossibleFormats = new List <ZXing.BarcodeFormat> {
ZXing.BarcodeFormat.QR_CODE
}
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var result = await scanner.Scan(options);
try
{
if (result != null)
{
if (result.Text.StartsWith("http://", StringComparison.InvariantCulture) ||
result.Text.StartsWith("https://", StringComparison.InvariantCulture))
{
Device.OpenUri(new Uri(result.Text));
}
}
Console.WriteLine("Scanned Barcode: " + result.Text);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
private async void Scanner_Tapped(object sender, EventArgs e)
{
try
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions()
{
AutoRotate = false,
TryInverted = true,
TryHarder = true,
};
//options.PossibleFormats = new List<ZXing.BarcodeFormat>()
//{
// ZXing.BarcodeFormat.EAN_8, ZXing.BarcodeFormat.EAN_13
//};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var result = await scanner.Scan(options);
actLoading.IsRunning = true;
HandleResult(result);
actLoading.IsRunning = false;
}
catch (Exception ex)
{
}
}
// Función para abrir la página del scanner
async void ScanningPage(object sender, EventArgs e)
{
try
{
// Se configura el lector de códigos de barras
var options = new ZXing.Mobile.MobileBarcodeScanningOptions
{
PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.CODE_128
},
TryHarder = true,
AssumeGS1 = true,
AutoRotate = true
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var result = await scanner.Scan(options);
if (result != null)
{
// Capturamos el código de barras
string scanResult = result.Text;
// Asignamos su valor a la entrada de texto
Entry_CodeBars.Text = scanResult;
// Verificamos que el código de barras sea válido
await VerifyCodeBars();
}
}
catch (Exception ex)
{
await DisplayAlert("Error", ex.Message, "OK");
return;
}
}
async void ScanClicked(object sender, EventArgs eventArgs)
{
//Navigation.PushAsync(new Search.BookSearchPage("4121024109"));
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
scanner.CancelButtonText = "キャンセル";
scanner.FlashButtonText = "フラッシュ";
scanner.AutoFocus();
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
var status = await CrossPermissions.Current.CheckPermissionStatusAsync(Plugin.Permissions.Abstractions.Permission.Camera);
if (status == Plugin.Permissions.Abstractions.PermissionStatus.Granted)
{
var result = await scanner.Scan(options);
if (result != null)
{
await Navigation.PushAsync(new Search.BookSearchPage(result.Text));
}
}
else
{
await DisplayAlert("エラー", "カメラを使用できません", "了解");
}
}
public async Task ScanProofRequest()
{
var expectedFormat = ZXing.BarcodeFormat.QR_CODE;
var opts = new ZXing.Mobile.MobileBarcodeScanningOptions {
PossibleFormats = new List <ZXing.BarcodeFormat> {
expectedFormat
}
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var result = await scanner.Scan(opts);
if (result == null)
{
return;
}
RequestPresentationMessage presentationMessage;
try
{
presentationMessage = await MessageDecoder.ParseMessageAsync(result.Text) as RequestPresentationMessage
?? throw new Exception("Unknown message type");
}
catch (Exception)
{
DialogService.Alert("Invalid Proof Request!");
return;
}
if (presentationMessage == null)
{
return;
}
try
{
var request = presentationMessage.Requests?.FirstOrDefault((Attachment x) => x.Id == "libindy-request-presentation-0");
if (request == null)
{
DialogService.Alert("scanned qr code does not look like a proof request", "Error");
return;
}
var proofRequest = request.Data.Base64.GetBytesFromBase64().GetUTF8String().ToObject <ProofRequest>();
if (proofRequest == null)
{
return;
}
var proofRequestViewModel = _scope.Resolve <ProofRequestViewModel>(new NamedParameter("proofRequest", proofRequest),
new NamedParameter("requestPresentationMessage", presentationMessage));
await NavigationService.NavigateToAsync(proofRequestViewModel);
}
catch (Exception xx)
{
DialogService.Alert(xx.Message);
}
}
async void btnEscanear_Clicked(object sender, EventArgs e)
{
var scann = new ZXingBarcodeImageView();
//setup options
var options = new ZXing.Mobile.MobileBarcodeScanningOptions
{
AutoRotate = false,
UseFrontCameraIfAvailable = false,
TryHarder = true,
UseNativeScanning = true,
};
var pagina = new ZXingScannerPage();
pagina.AutoFocus();
pagina.Title = "Escaneando codigo de barra";
await Navigation.PushAsync(pagina);
pagina.OnScanResult += (resultado) =>
{
pagina.IsScanning = false;
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopAsync();
lblResultado.Text = resultado.Text;
});
};
}
public void UITestBackdoorScan(string param)
{
var expectedFormat = ZXing.BarcodeFormat.QR_CODE;
Enum.TryParse(param, out expectedFormat);
var opts = new ZXing.Mobile.MobileBarcodeScanningOptions {
PossibleFormats = new List <ZXing.BarcodeFormat> {
expectedFormat
}
};
System.Diagnostics.Debug.WriteLine("Scanning " + expectedFormat);
var scanPage = new ZXingScannerPage(opts);
scanPage.OnScanResult += (result) => {
scanPage.IsScanning = false;
Device.BeginInvokeOnMainThread(() => {
var format = result?.BarcodeFormat.ToString() ?? string.Empty;
var value = result?.Text ?? string.Empty;
MainPage.Navigation.PopAsync();
MainPage.DisplayAlert("Barcode Result", format + "|" + value, "OK");
});
};
MainPage.Navigation.PushAsync(scanPage);
}
private void SetScanOptions()
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
//options.TryHarder = true;
//options.TryInverted = true;
//options.AutoRotate = true;
options.PossibleFormats = new List <ZXing.BarcodeFormat>();
options.PossibleFormats.Add(ZXing.BarcodeFormat.QR_CODE);
if (Parameters.Options.AcceptBarcode_Code)
{
options.PossibleFormats.Add(ZXing.BarcodeFormat.CODE_39);
options.PossibleFormats.Add(ZXing.BarcodeFormat.CODE_93);
options.PossibleFormats.Add(ZXing.BarcodeFormat.CODE_128);
options.PossibleFormats.Add(ZXing.BarcodeFormat.CODABAR);
}
if (Parameters.Options.AcceptBarcode_Ean)
{
options.PossibleFormats.Add(ZXing.BarcodeFormat.EAN_8);
options.PossibleFormats.Add(ZXing.BarcodeFormat.EAN_13);
}
if (Parameters.Options.AcceptBarcode_Upc)
{
options.PossibleFormats.Add(ZXing.BarcodeFormat.UPC_A);
options.PossibleFormats.Add(ZXing.BarcodeFormat.UPC_E);
options.PossibleFormats.Add(ZXing.BarcodeFormat.UPC_EAN_EXTENSION);
}
zxing.Options = options;
}
async void ScanAsync(object sender, EventArgs e)
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
};
var scanPage = new ZXingScannerPage(options);
var waitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
scanPage.OnScanResult += (result) => {
// Stop scanning
scanPage.IsScanning = false;
viewModel.ScannedId = result.Text;
waitHandle.Set();
// Pop the scanner page
Device.BeginInvokeOnMainThread(() => {
Navigation.PopModalAsync();
});
};
// Navigate to our scanner page
await Navigation.PushModalAsync(scanPage);
}
public async Task ScanInvite()
{
ConnectionInvitationMessage invitation = null;
bool isEmulated = false; //ONLY FOR TESTING
if (!isEmulated)
{
var expectedFormat = ZXing.BarcodeFormat.QR_CODE;
var opts = new ZXing.Mobile.MobileBarcodeScanningOptions
{
PossibleFormats = new List <ZXing.BarcodeFormat> {
expectedFormat
}
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var result = await scanner.Scan(opts);
if (result == null)
{
return;
}
try
{
invitation = await MessageDecoder.ParseMessageAsync(result.Text) as ConnectionInvitationMessage
?? throw new Exception("Unknown message type");
}
catch (Exception)
{
DialogService.Alert("Invalid invitation!");
return;
}
}
else
{
invitation = new ConnectionInvitationMessage()
{
Id = "453b0d8e-50d0-4a18-bf44-7d7369a0c31f",
Label = "Verifier",
Type = "did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/connections/1.0/invitation",
ImageUrl = "",
RecipientKeys = new List <string>()
{
"DPqj1fdVajDYdVgeT36NUSoVghjkapaHpVUdwbL1z6ye"
},
RoutingKeys = new List <string>()
{
"9RUPb4jPtR2S1P9yVy85ugwiywqqzDfxRrDZnKCTQCtH"
},
ServiceEndpoint = "http://mylocalhost:5002"
};
}
Device.BeginInvokeOnMainThread(async() =>
{
await NavigationService.NavigateToAsync <AcceptInviteViewModel>(invitation, NavigationType.Modal);
});
}
public async Task <string> ScanAsync()
{
#region 使用 ZXing.Mobile 的 MobileBarcodeScanner
// http://stackoverflow.com/questions/34582728/how-to-find-current-uiviewcontroller-in-xamarin
#region 取得最上層的 UIViewController
var window = UIApplication.SharedApplication.KeyWindow;
var vc = window.RootViewController;
while (vc.PresentedViewController != null)
{
vc = vc.PresentedViewController;
}
UIViewController appController = null;
foreach (var foowindow in UIApplication.SharedApplication.Windows)
{
if (foowindow.RootViewController != null)
{
appController = foowindow.RootViewController;
break;
}
}
#endregion
#region QRCode 掃描設定
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE,
};
#endregion
#region 進行 QRCode 掃描
var scanner = new ZXing.Mobile.MobileBarcodeScanner(vc)
{
TopText = "QRCode",
};
try
{
var scanResults = await scanner.Scan(options, true);
if (scanner != null)
{
return(scanResults.Text);
}
else
{
return(null);
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(null);
}
#endregion
#endregion
}
//
// This method is invoked when the application has loaded and is ready to run. In this
// method you should instantiate the window, load the UI into it and then make the window
// visible.
//
// You have 17 seconds to return from this method, or iOS will terminate your application.
//
public override bool FinishedLaunching (UIApplication app, NSDictionary options)
{
JsBridge.EnableJsBridge();
window = new UIWindow (UIScreen.MainScreen.Bounds);
// get useragent
UIWebView agentWebView = new UIWebView ();
var userAgent = agentWebView.EvaluateJavascript ("navigator.userAgent");
agentWebView = null;
userAgent += " XamarinBarcodeSampleApp";
// set default useragent
NSDictionary dictionary = NSDictionary.FromObjectAndKey(NSObject.FromObject(userAgent), NSObject.FromObject("UserAgent"));
NSUserDefaults.StandardUserDefaults.RegisterDefaults(dictionary);
viewController = new Xamarin_iOS_BarcodeSampleViewController ();
window.RootViewController = viewController;
window.MakeKeyAndVisible ();
viewController.MainWebView.LoadRequest(new NSUrlRequest(new NSUrl("http://xamarinbarcodesample.apphb.com/")));
// listen for the event triggered by the browser.
viewController.MainWebView.AddEventListener( "scanBarcode", delegate(FireEventData arg) {
// show a native action sheet
BeginInvokeOnMainThread (delegate {
//NOTE: On Android you MUST pass a Context into the Constructor!
var scanningOptions = new ZXing.Mobile.MobileBarcodeScanningOptions();
scanningOptions.PossibleFormats = new List<ZXing.BarcodeFormat>() {
ZXing.BarcodeFormat.All_1D
};
scanningOptions.TryInverted = true;
scanningOptions.TryHarder = true;
scanningOptions.AutoRotate = false;
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
scanner.TopText = "Hold camera up to barcode to scan";
scanner.BottomText = "Barcode will automatically scan";
scanner.Scan(scanningOptions).ContinueWith(t => {
if (t.Result != null) {
//Console.WriteLine("Scanned Barcode: " + t.Result.Text);
// pass barcode back to browser.
viewController.MainWebView.FireEvent( "scanComplete", new {
code = t.Result.Text
});
}
});
});
});
return true;
}
/// <summary>
/// Scan QR Code
/// </summary>
private async void tiQRCode_Activated(object sender, EventArgs e)
{
if (!App.AppSettings.QRCodeEnabled)
{
return;
}
var expectedFormat = ZXing.BarcodeFormat.QR_CODE;
var opts = new ZXing.Mobile.MobileBarcodeScanningOptions
{
PossibleFormats = new List <ZXing.BarcodeFormat> {
expectedFormat
}
};
System.Diagnostics.Debug.WriteLine("Scanning " + expectedFormat);
var scanPage = new ZXingScannerPage(opts);
scanPage.OnScanResult += (result) =>
{
scanPage.IsScanning = false;
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopAsync();
try
{
var qrCodeId = result.Text.GetHashCode() + "";
var qrCode = App.AppSettings.QRCodes.FirstOrDefault(o => o.Id == qrCodeId);
if (qrCode != null && qrCode.Enabled)
{
App.AddLog("QR Code ID Found: " + qrCodeId);
App.ShowToast(AppResources.qrcode + " " + qrCode.Name);
await App.ApiService.HandleSwitch(qrCode.SwitchIDX, qrCode.SwitchPassword, -1, qrCode.Value,
qrCode.IsScene);
App.SetMainPage();
}
else
{
App.AddLog("QR Code ID not registered: " + qrCodeId);
App.ShowToast(
qrCode == null ? AppResources.qrcode_new_found : AppResources.qr_code_disabled);
}
}
catch (Exception ex)
{
App.AddLog(ex.Message);
}
});
};
await Navigation.PushAsync(scanPage);
}
private async void Button_Clicked(object sender, EventArgs e)
{
var option = new ZXing.Mobile.MobileBarcodeScanningOptions();
option.AutoRotate = true;
option.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.EAN_8, ZXing.BarcodeFormat.EAN_13, ZXing.BarcodeFormat.CODE_128
};
var scanPage = new ZXingScannerPage(option);
scanPage.HeightRequest = 300;
scanPage.WidthRequest = 200;
scanPage.OnScanResult += (result) =>
{
// Stop scanning
scanPage.IsScanning = false;
if (scanPage.IsScanning)
{
scanPage.AutoFocus();
}
// Pop the page and show the result
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopAsync();
// await DisplayAlert("Scanned Barcode", result.Text, "OK");
try
{
var data = result.Text.Split(';');
if (data.Length > 0)
{
var context = BindingContext as TracingViewModel;
var resultData = await context.Find(data[0], data[1]);
if (result != null)
{
await Navigation.PushAsync(new TrackingDetail(resultData));
}
}
else
{
throw new SystemException("Ulangi Scan QR Code");
}
}
catch (Exception ex)
{
await DisplayAlert("Error", ex.Message, "OK");
}
});
};
// Navigate to our scanner page
await Navigation.PushAsync(scanPage);
}
public async Task SetOptionsBarcode()
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.EAN_8, ZXing.BarcodeFormat.EAN_13
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var result = await scanner.Scan(options);
}
async void ScanAsync(object sender, EventArgs e)
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
};
var scanPage = new ZXingScannerPage(options);
var waitHandle = new EventWaitHandle(false, EventResetMode.AutoReset);
string scannedId = null;
scanPage.OnScanResult += (result) => {
// Stop scanning
scanPage.IsScanning = false;
scannedId = result.Text;
waitHandle.Set();
// Pop the page and show the result
Device.BeginInvokeOnMainThread(() => {
Navigation.PopModalAsync();
});
};
// Navigate to our scanner page
await Navigation.PushModalAsync(scanPage);
await Task.Run(() => waitHandle.WaitOne());
if (scannedId == null)
{
return;
}
if (!uuidValidator.IsMatch(scannedId))
{
DependencyService.Get <IToastMessage>().ShortAlert("Ungültiger Code!");
}
if (scannedId != authController.AuthToken.UserId)
{
await historyController.SetScannedNow(scannedId);
}
await ShowProfile(scannedId);
}
public async Task <string> ScanAsync()
{
var scanner = new ZXing.Mobile.MobileBarcodeScanner()
{
UseCustomOverlay = true
};
var options = new ZXing.Mobile.MobileBarcodeScanningOptions()
{
TryHarder = true,
AutoRotate = false,
UseFrontCameraIfAvailable = false,
PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
}
};
ScannerOverlayView customOverlay = new ScannerOverlayView();
customOverlay.OnCancel += () =>
{
scanner?.Cancel();
};
customOverlay.OnResume += () =>
{
scanner?.ResumeAnalysis();
};
customOverlay.OnPause += () =>
{
scanner?.PauseAnalysis();
};
scanner.CustomOverlay = customOverlay;
ZXing.Result scanResults = null;
scanResults = await scanner.Scan(options);
//customOverlay.Dispose();
if (scanResults != null)
{
return(scanResults.Text);
}
return(string.Empty);
}
//Implementamos el metodo Scan definido en la interfaz IScan
public async System.Threading.Tasks.Task<String> Scan(){
var ctx = Forms.Context;
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new System.Collections.Generic.List<ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE,
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner(ctx);
var result = await scanner.Scan(options);
if(result != null)
return result.ToString ();
return string.Empty;
}
public async void quickScan()
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
// Restrict to QR codes only
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
};
var ScannerPage = new ZXingScannerPage(options);
ScannerPage.OnScanResult += (result) => {
ScannerPage.IsScanning = false;
ScannerPage.IsAnalyzing = false;
Device.BeginInvokeOnMainThread(() => {
Navigation.PopAsync(Config.defaultXamarinAnimations);
if (result.Text.Contains(":ixi"))
{
string[] split = result.Text.Split(new string[] { ":ixi" }, StringSplitOptions.None);
if (split.Count() < 1)
{
return;
}
string wal = split[0];
webView.Eval(string.Format("setAddress(\"{0}\")", wal));
}
else
{
string wal = result.Text;
// TODO: enter exact Ixian address length
if (wal.Length > 20 && wal.Length < 128)
{
webView.Eval(string.Format("setAddress(\"{0}\")", wal));
}
}
});
};
await Navigation.PushAsync(ScannerPage, Config.defaultXamarinAnimations);
}
public async Task ScanAsync()
{
_stopped = false;
// Initialize the scanner first so it can track the current context
ZXing.Mobile.MobileBarcodeScanner.Initialize(_androidApplication);
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var opt = new ZXing.Mobile.MobileBarcodeScanningOptions()
{
// DelayBetweenContinuousScans = 1000,
UseNativeScanning = true,
};
scanner.ScanContinuously(opt, f);
// return null;
}
public async void quickScan()
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
// Restrict to QR codes only
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
};
var ScannerPage = new ZXingScannerPage(options);
ScannerPage.OnScanResult += (result) => {
ScannerPage.IsScanning = false;
Device.BeginInvokeOnMainThread(() => {
Navigation.PopAsync(Config.defaultXamarinAnimations);
// Check for add contact
string[] split = result.Text.Split(new string[] { ":ixi" }, StringSplitOptions.None);
if (split.Count() > 1)
{
string id_to_add = split[0];
Navigation.PushAsync(new ContactNewPage(id_to_add), Config.defaultXamarinAnimations);
return;
}
// Check for transaction request
split = result.Text.Split(new string[] { ":send:" }, StringSplitOptions.None);
if (split.Count() > 1)
{
byte[] wallet_to_send = Base58Check.Base58CheckEncoding.DecodePlain(split[0]);
Navigation.PushAsync(new WalletSendPage(wallet_to_send), Config.defaultXamarinAnimations);
return;
}
});
};
await Navigation.PushAsync(ScannerPage, Config.defaultXamarinAnimations);
}
public async static Task <ZXingScannerPage> CaptureQRCodeAsync(ZXingScannerPage scanPage, string title, ZXing.BarcodeFormat format)
{
//Create page do QRCode
if (scanPage == null)
{
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>
{
format
};
//Start correctly the plugins of Scanner
#if __ANDROID__
MobileBarcodeScanner.Initialize(Application);
#endif
scanPage = new ZXingScannerPage(options); //Creata a new instance
scanPage.IsScanning = true; //Start camera and qrCode
}
scanPage.Title = title; //Title
return(scanPage); //return page
}
//Implementamos el metodo Scan definido en la interfaz IScan
public async System.Threading.Tasks.Task <String> Scan()
{
var ctx = Forms.Context;
var options = new ZXing.Mobile.MobileBarcodeScanningOptions();
options.PossibleFormats = new System.Collections.Generic.List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE,
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner(ctx);
var result = await scanner.Scan(options);
if (result != null)
{
return(result.ToString());
}
return(string.Empty);
}
/// <summary>
/// Create connection by presenting in-app QR code scanner.
/// </summary>
/// <param name="ctx"></param>
/// <returns></returns>
public static async Task<bool> EstablishSenderConnection(Activity ctx)
{
var overlay = ctx.LayoutInflater.Inflate(Resource.Layout.ScannerOverlay, null);
var options = new ZXing.Mobile.MobileBarcodeScanningOptions()
{
PossibleFormats = new System.Collections.Generic.List<ZXing.BarcodeFormat>() { ZXing.BarcodeFormat.QR_CODE }
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner(ctx)
{
UseCustomOverlay = true,
CustomOverlay = overlay
};
var result = await scanner.Scan(options);
if (result == null)
return false;
string resString = result.Text;
if (resString == QR.DataSchemeWithSuffix + "sound")
{
// the secret special mode. makes it possible to test features without another device.
// scan this: http://chart.apis.google.com/chart?chs=500x500&cht=qr&chl=dltsec://sound
Network.SenderConnection.CreateWithoutEndpoint();
Network.SenderConnection.CurrentConnection.RemoteName = "nobody";
return true;
}
if (!Features.QR.IsValid(resString))
throw new InvalidQRCodeException();
string host, password;
int port;
Features.QR.GetComponents(resString, out host, out port, out password);
return await EstablishSenderConnection(ctx, host, port, password);
}
