protected override async void OnElementChanged (ElementChangedEventArgs<Page> e)
{
base.OnElementChanged (e);
var metrics = Resources.DisplayMetrics;
var activity = this.Context as Activity;
relativeLayout = new RelLayout (activity);
var relativeLayoutParams = new RelLayout.LayoutParams (
RelLayout.LayoutParams.MatchParent,
RelLayout.LayoutParams.MatchParent
);
// Create topTextView - "Scan QR code to swap contact info"
topTextView = new TextView (activity);
topTextView.Text = "Scan QR code to swap contact info";
topTextView.Gravity = GravityFlags.Center;
topTextView.SetTextColor (AColor.Rgb (38, 173, 230));
topTextView.TextSize = 14f;
topTextView.Typeface = Typeface.CreateFromAsset (Forms.Context.Assets, "OpenSans-Bold.ttf");
RelLayout.LayoutParams topTVLayoutParams = new RelLayout.LayoutParams(
RelLayout.LayoutParams.MatchParent,
RelLayout.LayoutParams.MatchParent
);
relativeLayout.AddView (topTextView, topTVLayoutParams);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Create the Barcode Picker View */
barcodePicker = new ScanditSDKBarcodePicker (activity, "EeQ6GjLtEeSWsF/zcFfsWC8RqIt/+skbdZJ/MWpLIR8");
barcodePicker.OverlayView.AddListener (this);
// disable all codes except QR for scanning
barcodePicker.Set1DScanningEnabled (false);
barcodePicker.Set2DScanningEnabled (false);
barcodePicker.SetCode128Enabled (false);
barcodePicker.SetCode39Enabled (false);
barcodePicker.SetCode93Enabled (false);
barcodePicker.SetDataMatrixEnabled (false);
barcodePicker.SetEan13AndUpc12Enabled (false);
barcodePicker.SetEan8Enabled (false);
barcodePicker.SetItfEnabled (false);
barcodePicker.SetMicroDataMatrixEnabled (false);
barcodePicker.SetUpceEnabled (false);
/* - * - * - * - * - * - * - */
barcodePicker.SetQrEnabled (true);
/* - * - * - * - * - * - * - */
RelLayout.LayoutParams bpLayoutParams = new RelLayout.LayoutParams(
RelLayout.LayoutParams.MatchParent,
RelLayout.LayoutParams.MatchParent
);
bpLayoutParams.AddRule(LayoutRules.CenterHorizontal);
relativeLayout.AddView (barcodePicker, bpLayoutParams);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Create the overlay view -- this is to cover the bottom part of the barcode scanner view */
overlay = new AView(activity);
overlay.SetBackgroundColor (AColor.White);
RelLayout.LayoutParams oLayoutParams = new RelLayout.LayoutParams(
RelLayout.LayoutParams.MatchParent,
RelLayout.LayoutParams.MatchParent
);
oLayoutParams.AddRule(LayoutRules.AlignParentBottom);
relativeLayout.AddView (overlay, oLayoutParams);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * */
// Create bottomTextView - "Share your contact info"
bottomTextView = new TextView (activity);
bottomTextView.Text = "Share your contact info";
bottomTextView.Gravity = GravityFlags.Center;
bottomTextView.SetTextColor (AColor.Rgb (38, 173, 230));
bottomTextView.TextSize = 14f;
bottomTextView.Typeface = Typeface.CreateFromAsset (Forms.Context.Assets, "OpenSans-Bold.ttf");
RelLayout.LayoutParams bottomTVLayoutParams = new RelLayout.LayoutParams(
RelLayout.LayoutParams.MatchParent,
RelLayout.LayoutParams.MatchParent
);
relativeLayout.AddView (bottomTextView, bottomTVLayoutParams);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* * * Generating QR code * * */
IBarcodeWriter barcodeWriter = new BarcodeWriter
{
Format = BarcodeFormat.QR_CODE,
Options = new ZXing.Common.EncodingOptions
{
Width = 175,
Height = 175
}
};
// TODO: temp code - move to view model
var service = TinyIoC.TinyIoCContainer.Current.Resolve<CouchbaseConnect2014.Services.ICouchbaseService> ();
var contactId = service.GetUserId ();
var repo = TinyIoC.TinyIoCContainer.Current.Resolve<CouchbaseConnect2014.Services.IRepository> ();
var localUser = await repo.GetProfile ();
// end of temp code
var qrContent = string.Format ("{0},{1},{2}", contactId, localUser.First, localUser.Last);
var result = barcodeWriter.Write (qrContent);
qrImageView = new ImageView (activity);
qrImageView.SetImageBitmap (result);
RelLayout.LayoutParams qrLayoutParams = new RelLayout.LayoutParams (
RelLayout.LayoutParams.MatchParent,
RelLayout.LayoutParams.MatchParent
);
qrLayoutParams.AddRule (LayoutRules.CenterHorizontal);
relativeLayout.AddView (qrImageView, qrLayoutParams);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * */
AddView (relativeLayout, relativeLayoutParams);
barcodePicker.SetScanningHotSpot (0.5f, 0.2f);
barcodePicker.OverlayView.SetViewfinderDimension (0.4f, 0.28f);
barcodePicker.OverlayView.SetTorchEnabled (false);
barcodePicker.StartScanning();
}
