public override Task<Result> Scan (MobileBarcodeScanningOptions options)
{
return Task.Factory.StartNew(() => {
try
{
var scanResultResetEvent = new System.Threading.ManualResetEvent(false);
Result result = null;
this.appController.InvokeOnMainThread(() => {
// Free memory first and release resources
if (viewController != null)
{
viewController.Dispose();
viewController = null;
}
viewController = new ZxingCameraViewController(options, this);
viewController.BarCodeEvent += (BarCodeEventArgs e) => {
viewController.DismissViewController();
result = e.BarcodeResult;
scanResultResetEvent.Set();
};
viewController.Canceled += (sender, e) => {
viewController.DismissViewController();
scanResultResetEvent.Set();
};
appController.PresentViewController(viewController, true, () => { });
});
scanResultResetEvent.WaitOne();
return result;
}
catch (Exception ex)
{
return null;
}
});
}
public override Task <Result> Scan(MobileBarcodeScanningOptions options)
{
return(Task.Factory.StartNew(() => {
try
{
var scanResultResetEvent = new System.Threading.ManualResetEvent(false);
Result result = null;
this.appController.InvokeOnMainThread(() => {
// Free memory first and release resources
if (viewController != null)
{
viewController.Dispose();
viewController = null;
}
viewController = new ZxingCameraViewController(options, this);
viewController.BarCodeEvent += (BarCodeEventArgs e) => {
viewController.DismissViewController();
result = e.BarcodeResult;
scanResultResetEvent.Set();
};
viewController.Canceled += (sender, e) => {
viewController.DismissViewController();
scanResultResetEvent.Set();
};
appController.PresentViewController(viewController, true, () => { });
});
scanResultResetEvent.WaitOne();
return result;
}
catch (Exception ex)
{
return null;
}
}));
}
public ZxingSurfaceView(ZxingCameraViewController parentController, MobileBarcodeScanner scanner, MobileBarcodeScanningOptions options, UIView overlayView) : base()
{
var screenFrame = UIScreen.MainScreen.Bounds;
var scale = UIScreen.MainScreen.Scale;
screenFrame = new RectangleF(screenFrame.X, screenFrame.Y, screenFrame.Width * scale, screenFrame.Height * scale);
var picFrameWidth = Math.Round(screenFrame.Width * 0.90); //screenFrame.Width;
var picFrameHeight = Math.Round(screenFrame.Height * 0.60);
var picFrameX = (screenFrame.Width - picFrameWidth) / 2;
var picFrameY = (screenFrame.Height - picFrameHeight) / 2;
picFrame = new RectangleF((int)picFrameX, (int)picFrameY, (int)picFrameWidth, (int)picFrameHeight);
//Console.WriteLine(picFrame.X + ", " + picFrame.Y + " -> " + picFrame.Width + " x " + picFrame.Height);
this.OverlayView = overlayView;
this.Scanner = scanner;
this.Options = options;
Initialize();
_parentViewController = parentController;
}
public ZxingSurfaceView(ZxingCameraViewController parentController, MobileBarcodeScanner scanner, MobileBarcodeScanningOptions options, UIView overlayView) : base()
{
var screenFrame = UIScreen.MainScreen.Bounds;
var scale = UIScreen.MainScreen.Scale;
screenFrame = new RectangleF(screenFrame.X, screenFrame.Y, screenFrame.Width * scale, screenFrame.Height * scale);
var picFrameWidth = Math.Round(screenFrame.Width * 0.90); //screenFrame.Width;
var picFrameHeight = Math.Round(screenFrame.Height * 0.60);
var picFrameX = (screenFrame.Width - picFrameWidth) / 2;
var picFrameY = (screenFrame.Height - picFrameHeight) / 2;
picFrame = new RectangleF((int)picFrameX, (int)picFrameY, (int)picFrameWidth, (int)picFrameHeight);
//Console.WriteLine(picFrame.X + ", " + picFrame.Y + " -> " + picFrame.Width + " x " + picFrame.Height);
this.OverlayView = overlayView;
this.Scanner = scanner;
this.Options = options;
Initialize();
_parentViewController = parentController;
}
