public BarcodeReaderSurfaceView(Activity activity, MobileBarcodeScanningOptions options, Action <ZXing.Result> callback)
: base(activity)
{
CheckPermissions();
this.activity = activity;
this.callback = callback;
this.options = options;
lastPreviewAnalysis = DateTime.UtcNow.AddMilliseconds(options.InitialDelayBeforeAnalyzingFrames);
this.surface_holder = Holder;
this.surface_holder.AddCallback(this);
this.surface_holder.SetType(SurfaceType.PushBuffers);
this.tokenSource = new System.Threading.CancellationTokenSource();
}
public override Task <Result> Scan(MobileBarcodeScanningOptions options)
{
var task = Task.Factory.StartNew(() =>
{
var waitScanResetEvent = new System.Threading.ManualResetEvent(false);
var scanIntent = new Intent(this.Context, typeof(BarcodeReaderActivity));
// BarcodeReaderActivity.UseCustomView = this.UseCustomOverlay;
// BarcodeReaderActivity.CustomOverlayView = this.CustomOverlay;
BarcodeReaderActivity.ScanningOptions = options;
// BarcodeReaderActivity.TopText = TopText;
// BarcodeReaderActivity.BottomText = BottomText;
Result scanResult = null;
BarcodeReaderActivity._onCanceled += () =>
{
waitScanResetEvent.Set();
};
BarcodeReaderActivity._onScanCompleted += (Result result) =>
{
scanResult = result;
waitScanResetEvent.Set();
};
this.Context.StartActivity(scanIntent);
waitScanResetEvent.WaitOne();
return(scanResult);
});
return(task);
}
private void Scan_Clicked(object sender, EventArgs e)
{
MobileBarcodeScanningOptions options = new MobileBarcodeScanningOptions();
options.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.PDF_417
};
var scanPage = new ZXingScannerPage(options);
Navigation.PushAsync(scanPage);
scanPage.OnScanResult += (result) =>
{
scanPage.IsScanning = false;
Device.BeginInvokeOnMainThread(async() =>
{
await Navigation.PopAsync();
// Outputting Drivers License Info to App
DriversLicenseFields.Fields dlFields = new DriversLicenseFields.Fields();
try
{
BarcodeParser.ParseResults(result.Text, ref dlFields);
}
catch (Exception ex)
{
await DisplayAlert("Invalid Barcode", "The barcode could not be read! Please be sure you are scanning a valid Drivers License", "Ok");
}
last_name.Text = dlFields.last_name;
if (dlFields.first_middle != null)
{
first_middle.Text = dlFields.first_middle;
first_middle.IsVisible = true;
first_name.IsVisible = false;
middle_name.IsVisible = false;
full_name.IsVisible = false;
last_name.IsVisible = true;
}
else if (dlFields.first_name != null && dlFields.last_name != null)
{
first_name.Text = dlFields.first_name;
middle_name.Text = dlFields.middle_name;
first_name.IsVisible = true;
middle_name.IsVisible = true;
first_middle.IsVisible = false;
full_name.IsVisible = false;
last_name.IsVisible = true;
}
else
{
full_name.Text = dlFields.full_name;
full_name.IsVisible = true;
first_name.IsVisible = false;
middle_name.IsVisible = false;
first_middle.IsVisible = false;
last_name.IsVisible = false;
}
string month;
string day;
string year;
if ((dlFields.birthday[0] == '1' && dlFields.birthday[1] == '9') || (dlFields.birthday[0] == '2' && dlFields.birthday[1] == '0'))
{
year = dlFields.birthday.Substring(0, 4);
month = dlFields.birthday.Substring(4, 2);
day = dlFields.birthday.Substring(6, 2);
}
else
{
month = dlFields.birthday.Substring(0, 2);
day = dlFields.birthday.Substring(2, 2);
year = dlFields.birthday.Substring(4, 4);
}
birthday.Text = month + "/" + day + "/" + year;
address.Text = dlFields.address;
city.Text = dlFields.city;
state.Text = dlFields.state;
zip.Text = dlFields.zip;
license.Text = dlFields.license;
});
};
}
public BarcodeReaderScannerFragment(Action <Result> scanResultCallback, MobileBarcodeScanningOptions options = null)
{
Callback = scanResultCallback;
ScanningOptions = options ?? MobileBarcodeScanningOptions.Default;
UseCustomView = false;
}
public abstract Task <Result> Scan(MobileBarcodeScanningOptions options);
