public override void ViewDidLoad ()
{
//Create a new instance of our scanner
scanner = new MobileBarcodeScanner(this.NavigationController);
//Setup our button
buttonDefaultScan = new UIButton(UIButtonType.RoundedRect);
buttonDefaultScan.Frame = new RectangleF(20, 80, 280, 40);
buttonDefaultScan.SetTitle("Scan with Default View", UIControlState.Normal);
buttonDefaultScan.TouchUpInside += (sender, e) =>
{
//Tell our scanner to use the default overlay
scanner.UseCustomOverlay = false;
//We can customize the top and bottom text of the default overlay
scanner.TopText = "Hold camera up to barcode to scan";
scanner.BottomText = "Barcode will automatically scan";
//Start scanning
scanner.Scan ().ContinueWith((t) =>
{
//Our scanning finished callback
if (t.Status == System.Threading.Tasks.TaskStatus.RanToCompletion)
HandleScanResult(t.Result);
});
};
buttonCustomScan = new UIButton(UIButtonType.RoundedRect);
buttonCustomScan.Frame = new RectangleF(20, 20, 280, 40);
buttonCustomScan.SetTitle("Scan with Custom View", UIControlState.Normal);
buttonCustomScan.TouchUpInside += (sender, e) =>
{
//Create an instance of our custom overlay
customOverlay = new CustomOverlayView();
//Wireup the buttons from our custom overlay
customOverlay.ButtonTorch.TouchUpInside += delegate {
scanner.ToggleTorch();
};
customOverlay.ButtonCancel.TouchUpInside += delegate {
scanner.Cancel();
};
//Tell our scanner to use our custom overlay
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = customOverlay;
scanner.Scan ().ContinueWith((t) =>
{
//Our scanning finished callback
if (t.Status == System.Threading.Tasks.TaskStatus.RanToCompletion)
HandleScanResult(t.Result);
});
};
this.View.AddSubview(buttonDefaultScan);
this.View.AddSubview(buttonCustomScan);
}
public void ScanQRCodeContinuously(Func <IMobileBarcodeScanner, ZXing.Result, bool> action)
{
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
scanner.ScanContinuously((result) =>
{
//scanner.Torch(true);
var url = result.Text;
if (action == null || action(scanner, result))
{
scanner.Cancel();
}
});
//scanner.Torch(true);
}
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,
CameraResolutionSelector = new CameraResolutionSelectorDelegate(SelectLowestResolutionMatchingDisplayAspectRatio),
PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
}
};
View scanView = LayoutInflater.From(Application.Context).Inflate(Resource.Layout.ScanView, null);
ImageView imgLine = scanView.FindViewById <ImageView>(Resource.Id.imgLine);
ImageView imgClose = scanView.FindViewById <ImageView>(Resource.Id.imgClose);
imgClose.Click += delegate
{
scanner.Cancel();
};
scanner.CustomOverlay = scanView;
ObjectAnimator objectAnimator = ObjectAnimator.OfFloat(imgLine, "Y", 0, DpToPixels(240));
objectAnimator.SetDuration(2500);
objectAnimator.RepeatCount = -1;
objectAnimator.SetInterpolator(new LinearInterpolator());
objectAnimator.RepeatMode = ValueAnimatorRepeatMode.Restart;
objectAnimator.Start();
ZXing.Result scanResults = await scanner.Scan(CrossCurrentActivity.Current.Activity, options);
if (scanResults != null)
{
return(scanResults.Text);
}
return(string.Empty);
}
public async Task<BarCodeResult> Read(BarCodeReadConfiguration config, CancellationToken cancelToken)
{
config = config ?? BarCodeReadConfiguration.Default;
var controller = ((UIViewController)((ExtendedNavigationPage)App.GameNavigation).ViewController);
var scanner = new MobileBarcodeScanner(controller);
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = new BarCodeScannerOverlay(new CGRect(0, 0, (nfloat)App.GameNavigation.Bounds.Width, (nfloat)App.GameNavigation.Bounds.Height), "", "", config.CancelText, config.FlashlightText, () => scanner.Cancel(), () => scanner.ToggleTorch());
scanner.CancelButtonText = config.CancelText;
scanner.FlashButtonText = config.FlashlightText;
cancelToken.Register(scanner.Cancel);
var result = await scanner.Scan(this.GetXingConfig(config));
return (result == null || String.IsNullOrWhiteSpace(result.Text)
? BarCodeResult.Fail
: new BarCodeResult(result.Text, FromXingFormat(result.BarcodeFormat))
);
}
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,
CameraResolutionSelector = new CameraResolutionSelectorDelegate(SelectLowestResolutionMatchingDisplayAspectRatio),
PossibleFormats = new List <ZXing.BarcodeFormat>()
{
ZXing.BarcodeFormat.QR_CODE
}
};
View scanView = LayoutInflater.From(Application.Context).Inflate(Resource.Layout.ScanView, null);
ImageView imgClose = scanView.FindViewById <ImageView>(Resource.Id.imgClose);
imgClose.Click += delegate
{
scanner.Cancel();
};
scanner.CustomOverlay = scanView;
ZXing.Result scanResults = await scanner.Scan(CrossCurrentActivity.Current.Activity, options);
if (scanResults != null)
{
return(scanResults.Text);
}
return(string.Empty);
}
public override void ViewDidLoad()
{
//Create a new instance of our scanner
scanner = new MobileBarcodeScanner(this.NavigationController);
Root = new RootElement ("ZXing.Net.Mobile") {
new Section {
new StyledStringElement ("Scan with Default View", async () => {
//Tell our scanner to use the default overlay
scanner.UseCustomOverlay = false;
//We can customize the top and bottom text of the default overlay
scanner.TopText = "Hold camera up to barcode to scan";
scanner.BottomText = "Barcode will automatically scan";
//Start scanning
var result = await scanner.Scan ();
HandleScanResult(result);
}),
new StyledStringElement ("Scan Continuously", () => {
//Tell our scanner to use the default overlay
scanner.UseCustomOverlay = false;
//Tell our scanner to use our custom overlay
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = customOverlay;
var opt = new MobileBarcodeScanningOptions ();
opt.DelayBetweenContinuousScans = 3000;
//Start scanning
scanner.ScanContinuously (opt, true, HandleScanResult);
}),
new StyledStringElement ("Scan with Custom View", async () => {
//Create an instance of our custom overlay
customOverlay = new CustomOverlayView();
//Wireup the buttons from our custom overlay
customOverlay.ButtonTorch.TouchUpInside += delegate {
scanner.ToggleTorch();
};
customOverlay.ButtonCancel.TouchUpInside += delegate {
scanner.Cancel();
};
//Tell our scanner to use our custom overlay
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = customOverlay;
var result = await scanner.Scan ();
HandleScanResult(result);
}),
new StyledStringElement ("Scan with AVCapture Engine", async () => {
//Tell our scanner to use the default overlay
scanner.UseCustomOverlay = false;
//We can customize the top and bottom text of the default overlay
scanner.TopText = "Hold camera up to barcode to scan";
scanner.BottomText = "Barcode will automatically scan";
//Start scanning
var result = await scanner.Scan (true);
HandleScanResult (result);
}),
new StyledStringElement ("Generate Barcode", () => {
NavigationController.PushViewController (new ImageViewController (), true);
})
}
};
}
public override void ViewDidLoad ()
{
if (is7orgreater)
EdgesForExtendedLayout = UIRectEdge.None;
NavigationItem.Title = "ZXing.Net.Mobile";
//Create a new instance of our scanner
scanner = new MobileBarcodeScanner(this.NavigationController);
//Setup our button
buttonDefaultScan = new UIButton(UIButtonType.RoundedRect);
buttonDefaultScan.Frame = new RectangleF(20, 80, 280, 40);
buttonDefaultScan.SetTitle("Scan with Default View", UIControlState.Normal);
buttonDefaultScan.TouchUpInside += async (sender, e) =>
{
//Tell our scanner to use the default overlay
scanner.UseCustomOverlay = false;
//We can customize the top and bottom text of the default overlay
scanner.TopText = "Hold camera up to barcode to scan";
scanner.BottomText = "Barcode will automatically scan";
//Start scanning
var result = await scanner.Scan ();
HandleScanResult(result);
};
buttonCustomScan = new UIButton(UIButtonType.RoundedRect);
buttonCustomScan.Frame = new RectangleF(20, 20, 280, 40);
buttonCustomScan.SetTitle("Scan with Custom View", UIControlState.Normal);
buttonCustomScan.TouchUpInside += async (sender, e) =>
{
//Create an instance of our custom overlay
customOverlay = new CustomOverlayView();
//Wireup the buttons from our custom overlay
customOverlay.ButtonTorch.TouchUpInside += delegate {
scanner.ToggleTorch();
};
customOverlay.ButtonCancel.TouchUpInside += delegate {
scanner.Cancel();
};
//Tell our scanner to use our custom overlay
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = customOverlay;
var result = await scanner.Scan ();
HandleScanResult(result);
};
if (is7orgreater)
{
buttonAVCaptureScan = new UIButton (UIButtonType.RoundedRect);
buttonAVCaptureScan.Frame = new RectangleF (20, 140, 280, 40);
buttonAVCaptureScan.SetTitle ("Scan with AVCapture Engine", UIControlState.Normal);
buttonAVCaptureScan.TouchUpInside += async (sender, e) =>
{
//Tell our scanner to use the default overlay
scanner.UseCustomOverlay = false;
//We can customize the top and bottom text of the default overlay
scanner.TopText = "Hold camera up to barcode to scan";
scanner.BottomText = "Barcode will automatically scan";
//Start scanning
var result = await scanner.Scan (true);
HandleScanResult (result);
};
}
this.View.AddSubview (buttonDefaultScan);
this.View.AddSubview (buttonCustomScan);
if (is7orgreater)
this.View.AddSubview (buttonAVCaptureScan);
}
void buttonSample3_Click (object sender, EventArgs e)
{
var scanner = new MobileBarcodeScanner(this);
var overlay = (LinearLayout)this.LayoutInflater.Inflate(Resource.Layout.ScanOverlayLayout, null, false);
var buttonCancel = overlay.FindViewById<Button>(Resource.Id.buttonCancelScan);
var buttonFlash = overlay.FindViewById<Button>(Resource.Id.buttonToggleFlash);
buttonCancel.Click += (object sender2, EventArgs e2) =>
{
scanner.Cancel();
};
buttonFlash.Click += (object sender2, EventArgs e2) =>
{
scanner.ToggleTorch();
};
scanner.UseCustomOverlay = true;
scanner.CustomOverlay = overlay;
scanner.Scan().ContinueWith((t) => {
ShowMessage(t.Result != null ? "Scanned: " + t.Result.Text : "No Barcode Scanned");
});
}
