public void ToggleTorch()
{
if (scannerView != null)
{
scannerView.ToggleTorch();
}
}
public void ToggleTorch()
{
if (zxing != null)
{
zxing.ToggleTorch();
}
}
private void ZXingDefaultOverlay_FlashButtonClicked(object sender, System.EventArgs e)
{
ZXingScannerView.ToggleTorch();
}
public CustomScanPage() : base()
{
result = null;
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
SetScanOptions();
zxing.OnScanResult += Zxing_OnScanResult;
var inText = new Label
{
HeightRequest = 32,
WidthRequest = 120,
BackgroundColor = Color.White,
Text = "",
FontSize = 28,
FontAttributes = FontAttributes.Bold,
VerticalTextAlignment = TextAlignment.Center,
HorizontalTextAlignment = TextAlignment.Center
};
string[] texts = new string[] { "1", "2", "3", "4", "5", "6", "7", "8", "9", "⬅", "0", "▶" };
var buttons = new Button[texts.Length];
for (var j = 0; j < texts.Length; j++)
{
buttons[j] = new Button {
Text = texts[j], WidthRequest = 65, HeightRequest = 65, CornerRadius = 6, FontSize = 28, FontAttributes = FontAttributes.Bold
};
buttons[j].Clicked += (s, e) =>
{
if (int.TryParse((s as Button).Text, out int num))
{
inText.Text += (s as Button).Text;
}
else if ((s as Button).Text == "⬅")
{
if (inText.Text.Length > 0)
{
inText.Text = inText.Text.Substring(0, inText.Text.Length - 1);
}
}
else
{
zxing.RaiseScanResult(new ZXing.Result(inText.Text, Encoding.ASCII.GetBytes(inText.Text), null, ZXing.BarcodeFormat.QR_CODE));
}
};
}
var customKeyboard = new Grid
{
RowDefinitions = new RowDefinitionCollection {
new RowDefinition {
Height = 38
}, new RowDefinition {
Height = 72
}, new RowDefinition {
Height = 72
}, new RowDefinition {
Height = 72
}, new RowDefinition {
Height = 72
}
},
ColumnDefinitions = new ColumnDefinitionCollection {
new ColumnDefinition {
Width = 72
}, new ColumnDefinition {
Width = 72
}, new ColumnDefinition {
Width = 72
}
},
VerticalOptions = LayoutOptions.End,
HorizontalOptions = LayoutOptions.Center,
IsVisible = false,
BackgroundColor = Color.FromRgba(1.0, 1.0, 1.0, 0.7),
Padding = new Thickness(10, 5, 10, 2)
};
customKeyboard.Children.Add(inText, 0, 0);
for (var j = 0; j < texts.Length; j++)
{
customKeyboard.Children.Add(buttons[j], j % 3, 1 + (int)(j / 3));
}
Grid.SetColumnSpan(inText, 3);
var torch = new ImageButton
{
Source = "torch.png",
VerticalOptions = LayoutOptions.End,
HorizontalOptions = LayoutOptions.End,
HeightRequest = 96,
WidthRequest = 96
};
torch.Clicked += delegate
{
zxing.ToggleTorch();
};
var keyboard = new ImageButton
{
Source = "numeric.png",
VerticalOptions = LayoutOptions.End,
HorizontalOptions = LayoutOptions.Start,
HeightRequest = 96,
WidthRequest = 96
};
keyboard.Clicked += delegate
{
if (customKeyboard.IsVisible)
{
customKeyboard.IsVisible = false;
}
else
{
customKeyboard.IsVisible = true;
}
};
var abort = new Button
{
Text = Language.GetText("Cancel"),
HorizontalOptions = LayoutOptions.FillAndExpand,
TextColor = Color.White,
HeightRequest = 300
};
abort.Clicked += delegate
{
zxing.RaiseScanResult(null);
};
var customOverlayTop = new StackLayout
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BackgroundColor = Color.Black,
Opacity = 0.7,
Children =
{
new Label
{
HeightRequest = 20,
},
new Label
{
Text = Language.GetText("AppTitle"),
HorizontalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
TextColor = Color.White
},
new Label
{
Text = "Scan QR code...",
HorizontalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
TextColor = Color.White
}
}
};
var customOverlayCenter = new Grid
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
Opacity = 0.7,
Children =
{
new Image
{
VerticalOptions = LayoutOptions.CenterAndExpand,
HorizontalOptions = LayoutOptions.Center,
Source = "scanl1.png",
Aspect = Aspect.AspectFit
},
new Image
{
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
Source = "scanl2.png",
Aspect = Aspect.AspectFill
},
new Xamarin.Forms.Shapes.Rectangle
{
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
WidthRequest = 170,
HeightRequest = 170,
Stroke = Brush.Black,
StrokeThickness = 1,
RadiusX = 3,
RadiusY = 3
},
torch,
keyboard,
customKeyboard
}
};
var customOverlayBottom = new StackLayout
{
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BackgroundColor = Color.Black,
Opacity = 0.7,
Padding = new Thickness(0, 10, 0, 10),
};
customOverlayBottom.Children.Add(abort);
//if(zxing.HasTorch) customOverlayBottom.Children.Add(torch); BUG on library, this returns always FALSE
//customOverlayBottom.Children.Add(torch);
var customOverlay = new Grid
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
RowDefinitions = new RowDefinitionCollection
{
new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
},
new RowDefinition {
Height = new GridLength(2, GridUnitType.Star)
},
new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
}
},
Children =
{
customOverlayTop,
customOverlayCenter,
customOverlayBottom
}
};
Grid.SetRow(customOverlayTop, 0);
Grid.SetRow(customOverlayCenter, 1);
Grid.SetRow(customOverlayBottom, 2);
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
grid.Children.Add(zxing);
grid.Children.Add(customOverlay);
// The root page of your application
Content = grid;
}
public CustomScanPage() : base()
{
result = null;
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
SetScanOptions();
zxing.OnScanResult += Zxing_OnScanResult;
var torch = new Button
{
Text = Language.GetText("Torch"),
HorizontalOptions = LayoutOptions.FillAndExpand,
TextColor = Color.White
};
torch.Clicked += delegate {
zxing.ToggleTorch();
};
var abort = new Button
{
Text = Language.GetText("Cancel"),
HorizontalOptions = LayoutOptions.FillAndExpand,
TextColor = Color.White
};
abort.Clicked += delegate {
zxing.RaiseScanResult(null);
};
var customOverlayTop = new StackLayout
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BackgroundColor = Color.Black,
Opacity = 0.7,
Children =
{
new Label
{
HeightRequest = 20,
},
new Label
{
Text = Language.GetText("AppTitle"),
HorizontalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
TextColor = Color.White
},
new Label
{
Text = "Scan QR code...",
HorizontalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
TextColor = Color.White
}
}
};
var customOverlayCenter = new Grid
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
Opacity = 0.6,
Children =
{
new Image
{
VerticalOptions = LayoutOptions.CenterAndExpand,
HorizontalOptions = LayoutOptions.Center,
Source = "scanl1.png",
Aspect = Aspect.AspectFit
},
new Image
{
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
Source = "scanl2.png",
Aspect = Aspect.AspectFill
}
}
};
var customOverlayBottom = new StackLayout
{
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BackgroundColor = Color.Black,
Opacity = 0.7,
Padding = new Thickness(0, 10, 0, 10),
};
customOverlayBottom.Children.Add(abort);
//if(zxing.HasTorch) customOverlayBottom.Children.Add(torch); BUG on library, this returns always FALSE
customOverlayBottom.Children.Add(torch);
var customOverlay = new Grid
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
RowDefinitions = new RowDefinitionCollection
{
new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
},
new RowDefinition {
Height = new GridLength(2, GridUnitType.Star)
},
new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
}
},
Children =
{
customOverlayTop,
customOverlayCenter,
customOverlayBottom
}
};
Grid.SetRow(customOverlayTop, 0);
Grid.SetRow(customOverlayCenter, 1);
Grid.SetRow(customOverlayBottom, 2);
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
grid.Children.Add(zxing);
grid.Children.Add(customOverlay);
// The root page of your application
Content = grid;
}
//public string localHostUrl = "http://192.168.0.174:8080/PSM2017/";
public ScanPage()
{
zxings = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
AutomationId = "zxingScannerView",
IsScanning = true
};
zxings.OnScanResult += (result) =>
Device.BeginInvokeOnMainThread(async() =>
{
zxings.IsAnalyzing = false;
string barcode = result.Text;
if (App.Database.GetProducts().Count < 10)
{
string data = "";
string postData = "barcode=" + barcode;
string url = localHostUrl + "dbGetProduct.php";
WebService searchProduct = new WebService();
data = searchProduct.postService(postData, url);
if (data.Contains("{"))
{
Product product = JsonConvert.DeserializeObject <Product>(data);
//Product product = products.Find(x => x.barcode == Int32.Parse(barcode));
App.Database.AddProduct(product);
await DisplayAlert("Item Added", product.name + " added into list.", "OK");
}
else
{
XFToast.LongMessage(data);
}
}
else
{
await DisplayAlert("Alert!", "Your cart has 10 items. The cart could only hold up to 10 items. " +
"Please pay for the item(s) or delete item!!!", "OK");
}
// Stop analysis until we navigate away so we don't keep reading barcodes
zxings.IsAnalyzing = true;
// Show an alert
//await DisplayAlert("Scanned Barcode", result.Text, "OK");
// Navigate away
//await Navigation.PopAsync();
});
var scanOverlay = new RelativeLayout
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
Xamarin.Forms.Label text = new Xamarin.Forms.Label
{
Text = "Hold your phone up to the barcode",
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
TextColor = Color.White
};
Xamarin.Forms.Label text2 = new Xamarin.Forms.Label
{
Text = "Scanning will happen automatically",
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
TextColor = Color.White
};
BoxView redLine = new BoxView
{
BackgroundColor = Color.Red,
Opacity = 0.6
};
BoxView boxView = new BoxView
{
BackgroundColor = Color.Black,
Opacity = 0.7
};
BoxView boxView2 = new BoxView
{
BackgroundColor = Color.Black,
Opacity = 0.7
};
BoxView boxView3 = new BoxView
{
BackgroundColor = Color.Black,
Opacity = 0.7
};
BoxView boxView4 = new BoxView
{
BackgroundColor = Color.Black,
Opacity = 0.7
};
scanOverlay.Children.Add(boxView,
Constraint.RelativeToParent((parent) => {
return(parent.X);
}),
Constraint.RelativeToParent((parent) => {
return(parent.Y);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Width * 0.1);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height);
})
);
scanOverlay.Children.Add(boxView2,
Constraint.RelativeToParent((parent) => {
return(parent.Width * 0.9);
}),
Constraint.RelativeToParent((parent) => {
return(parent.Y);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Width * 0.1);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height);
})
);
scanOverlay.Children.Add(boxView3,
Constraint.RelativeToParent((parent) => {
return(parent.Width * 0.1);
}),
Constraint.RelativeToParent((parent) => {
return(parent.Y);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Width * 0.8);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height * 0.2);
})
);
scanOverlay.Children.Add(boxView4,
Constraint.RelativeToParent((parent) => {
return(parent.Width * 0.1);
}),
Constraint.RelativeToParent((parent) => {
return(parent.Height * 0.6);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Width * 0.8);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height * 0.4);
})
);
scanOverlay.Children.Add(redLine,
Constraint.RelativeToParent((parent) => {
return(parent.Width * 0.1);
}),
Constraint.RelativeToParent((parent) => {
return(parent.Height * 0.4);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Width * 0.8);
}),
Constraint.RelativeToParent((parent) =>
{
return(3);
})
);
scanOverlay.Children.Add(text,
Constraint.RelativeToParent((parent) =>
{
return(parent.Width * 0.2);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height * 0.1);
})
);
scanOverlay.Children.Add(text2,
Constraint.RelativeToParent((parent) =>
{
return(parent.Width * 0.2);
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height * 0.8);
})
);
defaultOverlay = new ZXingDefaultOverlay
{
TopText = "Hold your phone up to the barcode",
BottomText = "Scanning will happen automatically",
//ShowFlashButton = true,
AutomationId = "zxingDefaultOverlay",
};
defaultOverlay.BindingContext = defaultOverlay;
var customOverlay = new RelativeLayout
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
var torchFAB = new FAB.Forms.FloatingActionButton();
torchFAB.Source = "flashlight_icon.png";
torchFAB.NormalColor = Color.FromHex("FFE066");
torchFAB.Size = FAB.Forms.FabSize.Normal;
torchFAB.Clicked += (sender, args) =>
{
zxings.ToggleTorch();
};
var listFAB = new FAB.Forms.FloatingActionButton();
listFAB.Source = "shoping_cart.png";
listFAB.NormalColor = Color.FromHex("FFE066");
listFAB.Size = FAB.Forms.FabSize.Normal;
listFAB.Clicked += async(sender, args) =>
{
//zxing.IsAnalyzing = false;
//XFToast.LongMessage("Hello");
await Navigation.PushAsync(new ListViewProduct());
};
var addFAB = new FAB.Forms.FloatingActionButton();
addFAB.Source = "plus_black_symbol.png";
addFAB.NormalColor = Color.FromHex("FFE066");
addFAB.Size = FAB.Forms.FabSize.Normal;
addFAB.Clicked += async(sender, args) =>
{
if (App.Database.GetProducts().Count < 10)
{
var config = new PromptConfig();
config.Title = "Manual enter product barcode";
config.InputType = InputType.Number;
config.OnAction = async(result) =>
{
if (result.Ok)
{
string barcode = result.Text;
string postData = "barcode=" + barcode;
string url = localHostUrl + "dbGetProduct.php";
WebService searchProduct = new WebService();
string data = searchProduct.postService(postData, url);
if (data.Contains("{"))
{
Product product = JsonConvert.DeserializeObject <Product>(data);
//Product product = products.Find(x => x.barcode == Int32.Parse(barcode));
App.Database.AddProduct(product);
await DisplayAlert("Item Added", product.name + " added into list.", "OK");
}
else
{
XFToast.LongMessage(data);
}
}
zxings.IsAnalyzing = true;
};
await Task.Run(() =>
{
Device.BeginInvokeOnMainThread(() =>
{
zxings.IsAnalyzing = false;
UserDialogs.Instance.Prompt(config);
});
});
}
else
{
await DisplayAlert("Alert!", "Your cart has 10 items.The cart could only hold up to 10 items. " +
"Please pay for the item(s) or delete item!!!", "OK");
}
//App.Database.AddProduct(new Product {Name = "Milo", Price = 20.587, Barcode = 00001 });
};
var checkOutFAB = new FAB.Forms.FloatingActionButton();
checkOutFAB.Source = "cash_register_machine.png";
checkOutFAB.NormalColor = Color.FromHex("FFE066");
checkOutFAB.Size = FAB.Forms.FabSize.Normal;
checkOutFAB.Clicked += (sender, args) =>
{
//XFToast.LongMessage("Check out");
var products = App.Database.GetProducts();
if (products.Count > 0)
{
Task.Run(async() => {
PayPalItem[] paypalItems = new PayPalItem[products.Count];
int i = 0;
foreach (Product product in products)
{
PayPalItem paypalItem = new PayPalItem(product.name, 1, Convert.ToDecimal(product.price), "MYR"
, product.barcode);
paypalItems[i] = paypalItem;
i++;
}
var result = await CrossPayPalManager.Current.Buy(paypalItems, new Decimal(0.0), new Decimal(0.00));
if (result.Status == PayPalStatus.Cancelled)
{
Debug.WriteLine("Cancelled");
}
else if (result.Status == PayPalStatus.Error)
{
Debug.WriteLine(result.ErrorMessage);
}
else if (result.Status == PayPalStatus.Successful)
{
Debug.WriteLine(result.ServerResponse.Response.Id);
var jsonArray = JsonConvert.SerializeObject(products);
string jsnArray = jsonArray.ToString();
string postData = "receipt=" + jsnArray;
string url = localHostUrl + "genReceipt.php";
WebService searchProduct = new WebService();
string data = searchProduct.postService(postData, url);
if (data.ToLower().Contains(".pdf"))
{
Device.BeginInvokeOnMainThread(async() =>
{
await DisplayAlert("Payment Success", "The payment is success!!", "OK");
App.Database.ClearList();
downloadPDF(data);
await DisplayAlert("Download Success", "Receipt downloaded", "OK");
});
}
}
});
}
else
{
DisplayAlert("Alert!", "There are no item in the cart list.", "OK");
}
};
var receiptFAB = new FAB.Forms.FloatingActionButton();
receiptFAB.Source = "receiptIcon";
receiptFAB.NormalColor = Color.FromHex("FFE066");
receiptFAB.Size = FAB.Forms.FabSize.Normal;
receiptFAB.Clicked += async(sender, args) =>
{
await Navigation.PushAsync(new ListPDF());
};
/*
* customOverlay.Children.Add(
* torchFAB,
* xConstraint: Constraint.RelativeToParent((parent) => { return parent.Width - 48; }),
* yConstraint: Constraint.RelativeToParent((parent) => { return 8; })
* );
*
* customOverlay.Children.Add(
* listFAB,
* Constraint.RelativeToView(torchFAB, (Parent, sibling) => { return sibling.X; }),
* Constraint.RelativeToView(torchFAB, (Parent, sibling) => { return sibling.Y + 48; })
* );
* customOverlay.Children.Add(
* addFAB,
* Constraint.RelativeToView(listFAB, (Parent, sibling) => { return sibling.X; }),
* Constraint.RelativeToView(listFAB, (Parent, sibling) => { return sibling.Y + 48; })
* );
* customOverlay.Children.Add(
* checkOutFAB,
* Constraint.RelativeToView(addFAB, (Parent, sibling) => { return sibling.X; }),
* Constraint.RelativeToView(addFAB, (Parent, sibling) => { return sibling.Y + 48; })
* );
* customOverlay.Children.Add(
* receiptFAB,
* Constraint.RelativeToView(checkOutFAB, (Parent, sibling) => { return sibling.X; }),
* Constraint.RelativeToView(checkOutFAB, (Parent, sibling) => { return sibling.Y + 48; })
* );
*/
customOverlay.Children.Add(
torchFAB,
xConstraint: Constraint.RelativeToParent((parent) => { return(parent.X + 6); }),
yConstraint: Constraint.RelativeToParent((parent) => { return(parent.Height * 0.6 + 24); })
);
customOverlay.Children.Add(
listFAB,
Constraint.RelativeToView(torchFAB, (Parent, sibling) => { return(sibling.X + 72); }),
Constraint.RelativeToView(torchFAB, (Parent, sibling) => { return(sibling.Y); })
);
customOverlay.Children.Add(
addFAB,
Constraint.RelativeToView(listFAB, (Parent, sibling) => { return(sibling.X + 72); }),
Constraint.RelativeToView(listFAB, (Parent, sibling) => { return(sibling.Y); })
);
customOverlay.Children.Add(
checkOutFAB,
Constraint.RelativeToView(addFAB, (Parent, sibling) => { return(sibling.X + 72); }),
Constraint.RelativeToView(addFAB, (Parent, sibling) => { return(sibling.Y); })
);
customOverlay.Children.Add(
receiptFAB,
Constraint.RelativeToView(checkOutFAB, (Parent, sibling) => { return(sibling.X + 72); }),
Constraint.RelativeToView(checkOutFAB, (Parent, sibling) => { return(sibling.Y); })
);
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
grid.Children.Add(zxings);
//grid.Children.Add(defaultOverlay);
grid.Children.Add(scanOverlay);
grid.Children.Add(customOverlay);
Content = grid;
}