public ComingIn(string Lat, string Long, string DeviceId, string LocAddress, string distanceFromOrigin) : base()
{
this.Latitude = Lat;
this.Longitude = Long;
this.UniqueDeviceID = DeviceId;
this.LocationAddress = LocAddress;
this.distanceFromOrigin = distanceFromOrigin;
BackgroundColor = ColorResources.PageBackgroundColor;
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
zxing.OnScanResult += (result) =>
{
zxing.IsAnalyzing = false;// Stop analysis until we navigate away so we don't keep reading barcodes
Device.BeginInvokeOnMainThread(async() =>
{
if (result.Text == "nWorks Technologies (India) Pvt. Ltd., 206 Garden Plaza, Rahatani, Pune, Maharashtra, 411 017, INDIA")
{
comingIn_goingOut obj = new comingIn_goingOut();
try
{ //get geolocation
obj.empId = ColorResources.LIVE_USER_ID;
obj.qrValue = result.Text;
obj.DeviceID = this.UniqueDeviceID;
obj.latitude = this.Latitude;
obj.longitude = this.Longitude;
obj.Location = this.LocationAddress;
obj.distanceFromOrigin = this.distanceFromOrigin;
await this.Navigation.PopAsync();
zxing.IsScanning = false;
var json = JsonConvert.SerializeObject(obj);
var content = new StringContent(json, Encoding.UTF8, "application/json");
HttpClient Client = new HttpClient();
HttpResponseMessage response = null;
response = await Client.PostAsync(ColorResources.baseUrl + "comingIn", content);
if (response.IsSuccessStatusCode)
{
var responseContent = await response.Content.ReadAsStringAsync();
var res = JsonConvert.DeserializeObject <string>(responseContent);
await DisplayAlert(" nWorksLeaveApp", res.ToString(), "OK");
}
}
catch (Exception exc)
{
// await DisplayAlert(" nWorksLeaveApp",exc.ToString(),"OK");
Debug.WriteLine(exc.ToString());
}
}
else
{
await DisplayAlert(" nWorksLeaveApp", "Invalid QR Code!", "OK");
}
});
};
overlay = new ZXingDefaultOverlay
{
TopText = "Hold your phone up to the barcode",
BottomText = "Scanning will happen automatically",
ShowFlashButton = zxing.HasTorch,
};
overlay.FlashButtonClicked += (sender, e) =>
{
zxing.IsTorchOn = !zxing.IsTorchOn;
};
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
HeightRequest = 500,
};
grid.Children.Add(zxing);
grid.Children.Add(overlay);
Content = new StackLayout
{
Padding = new Thickness(0, 15, 0, 10),
VerticalOptions = LayoutOptions.Center,
Children =
{
new Label {
Text = "I am coming...",
TextColor = Color.Red,
FontSize = 25,
VerticalOptions = LayoutOptions.StartAndExpand,
HorizontalOptions = LayoutOptions.Center,
},
grid
}
};
}
public CustomScannerPage() : base()
{
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
zxing.OnScanResult += (result) =>
Device.BeginInvokeOnMainThread(() => {
// Stop analysis until we navigate away so we don't keep reading barcodes
zxing.IsAnalyzing = false;
OnUpcResultEvent(result.Text);
});
overlay = new ZXingDefaultOverlay
{
TopText = "Hold your phone up to the barcode",
BottomText = "Scanning will happen automatically",
ShowFlashButton = zxing.HasTorch,
};
overlay.FlashButtonClicked += (sender, e) => {
zxing.IsTorchOn = !zxing.IsTorchOn;
};
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
grid.Children.Add(zxing);
grid.Children.Add(overlay);
var upcEntry = new Entry {
Placeholder = "UPC", HorizontalOptions = LayoutOptions.FillAndExpand
};
upcEntry.Completed += (sender, e) =>
Device.BeginInvokeOnMainThread(() =>
{
zxing.IsAnalyzing = false;
zxing.IsScanning = false;
zxing.IsEnabled = false;
OnUpcResultEvent(((Entry)sender).Text);
});
var endButton = new Button {
Text = "Enter", HorizontalOptions = LayoutOptions.End
};
endButton.Clicked += (sender, e) =>
Device.BeginInvokeOnMainThread(() =>
{
zxing.IsAnalyzing = false;
zxing.IsScanning = false;
zxing.IsEnabled = false;
OnUpcResultEvent(upcEntry.Text);
});
var brewerEntry = new Entry {
Placeholder = "Brewery Name", HorizontalOptions = LayoutOptions.FillAndExpand, Text = "Left Hand Brewing Company"
};
var beerEntry = new Entry {
Placeholder = "Beer Name", HorizontalOptions = LayoutOptions.FillAndExpand, Text = "Milk Stout Nitro"
};
var manualEndButton = new Button {
Text = "Enter", HorizontalOptions = LayoutOptions.End
};
manualEndButton.Clicked += (sender, e) =>
Device.BeginInvokeOnMainThread(() =>
{
zxing.IsAnalyzing = false;
zxing.IsScanning = false;
zxing.IsEnabled = false;
OnManualResultEvent(brewerEntry.Text + "|" + beerEntry.Text);
});
var content = new StackLayout
{
Children =
{
grid,
new StackLayout
{
Margin = new Thickness(20, 20, 20, 5),
Children =
{
new Label {
Text = "Or, manually enter your UPC",FontSize = 20
},
new StackLayout {
Orientation = StackOrientation.Horizontal,
Children =
{
upcEntry,
endButton
}
}
}
},
new StackLayout
{
Margin = new Thickness(20, 0, 20, 20),
Children =
{
new Label {
Text = "Or even just lookup manually by name!",FontSize = 20
},
new StackLayout
{
Orientation = StackOrientation.Horizontal,
Children =
{
brewerEntry,
beerEntry,
manualEndButton
}
}
}
}
}
};
Content = content;
}
//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;
}
public CodeScannerPage()
{
InitializeComponent();
// 取得這個頁面的檢視模型(ViewModel)物件
foo本頁面的檢視模型 = this.BindingContext as CodeScannerPageViewModel;
#region 指定要掃描的條碼類型
var fooMobileBarcodeScanningOptions = new MobileBarcodeScanningOptions();
fooMobileBarcodeScanningOptions.PossibleFormats = new List <ZXing.BarcodeFormat>()
{
BarcodeFormat.QR_CODE,
BarcodeFormat.CODE_128,
BarcodeFormat.CODE_39,
BarcodeFormat.CODABAR
};
#endregion
#region 建立條碼掃描控制項
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
AutomationId = "zxingScannerView",
};
#region 設定完成條碼掃描後，要進行處理的工作
zxing.OnScanResult += (result) =>
Device.BeginInvokeOnMainThread(async() =>
{
// 停止分析掃描條碼工作
zxing.IsAnalyzing = false;
// 將掃描結果回傳到首頁
foo本頁面的檢視模型._eventAggregator.GetEvent <ScanResultEvent>().Publish(new ScanResultPayload
{
Result = result.Text,
});
// 回到上一頁
await foo本頁面的檢視模型._navigationService.GoBackAsync();
});
#endregion
#endregion
#region 建立條碼掃描遮罩
overlay = new ZXingDefaultOverlay
{
ShowFlashButton = zxing.HasTorch,
};
// 當按下 Flash 按鈕，就會顯示燈光，幫助更順利讀取條碼
overlay.FlashButtonClicked += (sender, e) =>
{
zxing.IsTorchOn = !zxing.IsTorchOn;
};
#endregion
// 將條碼掃描與分析控制項，加入到頁面上
ScannerGrid.Children.Add(zxing);
// 將遮罩加入到頁面上
ScannerGrid.Children.Add(overlay);
}
void AddPageContent()
{
this.Title = "Scan Barcode";
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
zxing.OnScanResult += (result) =>
//Device.BeginInvokeOnMainThread(async () => {
// // Stop analysis until we navigate away so we don't keep reading barcodes
// zxing.IsAnalyzing = false;
// // Show an alert
// await DisplayAlert("Scanned Barcode", result.Text, "OK");
// // Navigate away
// await Navigation.PopAsync();
//});
Device.BeginInvokeOnMainThread(async() =>
{
// Stop analysis until we navigate away so we don't keep reading barcodes
zxing.IsAnalyzing = false;
//Binding data
try
{
if (!CommonLib.checkconnection())
{
RacoonAlertPopup.textmsg = "Check your internet connection.";
await App.Current.MainPage.Navigation.PushPopupAsync(new RacoonAlertPopup());
return;
}
await App.Current.MainPage.Navigation.PushPopupAsync(new LoadPopup());
string postData = "barcode=" + result + "&userId=" + LoginDetails.userId + "";
var response = await CommonLib.BarcodeScanner(CommonLib.ws_MainUrl + "AccountApi/ScanBarcode?" + postData, "");
if (response != null && response.Status != 0)
{
LoadPopup.CloseAllPopup();
RacoonAlertPopup.textmsg = response.msg;
await App.Current.MainPage.Navigation.PushPopupAsync(new RacoonAlertPopup());
await Navigation.PopAsync();
}
else
{
LoadPopup.CloseAllPopup();
RacoonAlertPopup.textmsg = response.msg;
await App.Current.MainPage.Navigation.PushPopupAsync(new RacoonAlertPopup());
await Navigation.PopAsync();
}
}
catch (Exception ex)
{
LoadPopup.CloseAllPopup();
await App.Current.MainPage.DisplayAlert("", ex.Message, "OK");
}
finally
{
}
// Show an alert
// Navigate away
});
overlay = new ZXingDefaultOverlay
{
TopText = "Hold your phone up to the barcode",
BottomText = "Scanning will happen automatically",
ShowFlashButton = zxing.HasTorch,
};
overlay.FlashButtonClicked += (sender, e) => {
zxing.IsTorchOn = !zxing.IsTorchOn;
};
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
grid.Children.Add(zxing);
grid.Children.Add(overlay);
// The root page of your application
Content = grid;
}
//сканирование штрихкода
public void ScanAsync()
{
ZXingScannerView zxing = new ZXingScannerView()
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
IsAnalyzing = true,
IsScanning = true,
};
//промежуток между сканированием
zxing.Options.DelayBetweenContinuousScans = 3000;
zxing.Options.BuildMultiFormatReader();
//результат сканирования
zxing.OnScanResult += (result) =>
{
Device.BeginInvokeOnMainThread(() =>
{
//получение места и имя БД
string documentsPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
var path = Path.Combine(documentsPath, "barecode.db");
string databasePath = DependencyService.Get <ISQLite>().GetDatabasePath(path);
SQLiteConnection database = new SQLiteConnection(databasePath);
//проверка есть ли такой штрихкод в локальной таблице товаров
var codeGoodsCount = database.Table <MapsGoods>().Where(a => a.BarCode == result.Text).Count(); //получаем количество таких штрихкодов
var codeGoods = database.Table <MapsGoods>().Where(a => a.BarCode == result.Text).Select(a => a.CodeGoods).FirstOrDefault(); //получаем код товара
var userName = database.Table <Users>().Select(a => a.MapsUserName).FirstOrDefault().ToString(); //получаем текущего пользователя
if (userName == "" | userName == null) //если каким-то образом пользователь не определился или отсутствовал в бд, то устанавливается значение НЕОПРЕДЕЛЕНО
{
userName = "******";
}
if (codeGoodsCount != 0 && codeGoods != null) //если данных штрихкод есть в локальной БД, то выводим код товара, если нет, то выводим "нет совпадений"
{
DisplayAlert("Код товара: " + codeGoods, "Штрихкод: " + result.Text, "OK");
}
else
{
DisplayAlert("Нет совпадений", "Штрихкод: " + result.Text, "OK");
}
//добавление в БД полученного результата сканирования
BarecodeResult barecodeResult = new BarecodeResult();
barecodeResult.BarecodeFormat = result.BarcodeFormat.ToString();
barecodeResult.TextResult = result.Text;
barecodeResult.CodeGoods = codeGoods;
barecodeResult.Status = 0;
barecodeResult.dateTime = DateTime.Now;
barecodeResult.UserName = userName;
if (!String.IsNullOrEmpty(barecodeResult.TextResult))
{
try
{
App.Database.SaveItem(barecodeResult);
}
catch
{
DisplayAlert("Ошибка", "В процессе добавления произошла ошибка", "OK");
}
}
else
{
DisplayAlert("Ошибка", "Данные не добавлены.", "OK");
}
});
};
//текст снизу страницы сканирования
var overlay = new ZXingDefaultOverlay
{
TopText = null,
BottomText = "Автомаическое сканирование каждые 3 сек.",
ShowFlashButton = true, //кнопка фонарика
};
//обработчик кнопки фонарика
overlay.FlashButtonClicked += (a, b) =>
{
zxing.IsTorchOn = !zxing.IsTorchOn;
};
//кнопка отмены
var cancel = new Button()
{
Text = "Отмена",
BackgroundColor = Color.Red,
VerticalOptions = LayoutOptions.EndAndExpand,
HorizontalOptions = LayoutOptions.EndAndExpand
};
//обработчик кнопки отмены
cancel.Clicked += (a, b) =>
{
Navigation.PopToRootAsync();
NavigationPage navPage = (NavigationPage)App.Current.MainPage;
};
//данная страница постоена на Grid
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
//добавленик в Grid элементов
grid.Children.Add(zxing);
grid.Children.Add(overlay);
grid.Children.Add(cancel);
// объявляем элементы на страницу
Content = grid;
}
public async Task <string> SkanowanieEan()
{
opts = new ZXing.Mobile.MobileBarcodeScanningOptions()
{
AutoRotate = false,
PossibleFormats = new List <ZXing.BarcodeFormat>()
{
//ZXing.BarcodeFormat.CODE_128,
//ZXing.BarcodeFormat.CODABAR,
ZXing.BarcodeFormat.CODE_39,
ZXing.BarcodeFormat.EAN_13
}
};
opts.TryHarder = true;
zxing = new ZXingScannerView
{
IsScanning = false,
IsTorchOn = false,
IsAnalyzing = false,
AutomationId = "zxingDefaultOverlay", //zxingScannerView
Opacity = 22,
Options = opts
};
var torch = new Switch
{
};
torch.Toggled += delegate
{
scanPage.ToggleTorch();
};
var grid = new Grid
{
VerticalOptions = LayoutOptions.Center,
HorizontalOptions = LayoutOptions.Center,
};
var Overlay = new ZXingDefaultOverlay
{
TopText = "Włącz latarkę",
BottomText = "Skanowanie rozpocznie się automatycznie",
ShowFlashButton = true,
AutomationId = "zxingDefaultOverlay",
};
var customOverlay = new StackLayout
{
HorizontalOptions = LayoutOptions.EndAndExpand,
VerticalOptions = LayoutOptions.EndAndExpand
};
grid.Children.Add(Overlay);
Overlay.Children.Add(torch);
Overlay.BindingContext = Overlay;
scanPage = new ZXingScannerPage(opts, customOverlay: Overlay)
{
DefaultOverlayTopText = "Zeskanuj kod ",
//DefaultOverlayBottomText = " Skanuj kod ";
DefaultOverlayShowFlashButton = true
};
scanPage.OnScanResult += (result) =>
{
scanPage.IsScanning = false;
scanPage.AutoFocus();
Device.BeginInvokeOnMainThread(() =>
{
Device.StartTimer(new TimeSpan(0, 0, 0, 2), () =>
{
if (scanPage.IsScanning)
{
scanPage.AutoFocus();
}
return(true);
});
Navigation.PopModalAsync();
resultat = result.Text;
});
};
await Navigation.PushModalAsync(scanPage);
return(resultat);
}
public CustomScanPage() : base()
{
try
{
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
var abort = new Button
{
Text = "Abort",
};
abort.Clicked += Abort_Clicked;
zxing.OnScanResult += (result) =>
Device.BeginInvokeOnMainThread(async() => {
// Stop analysis until we navigate away so we don't keep reading barcodes
zxing.IsAnalyzing = false;
// Show an alert
//await DisplayAlert("Scanned Barcode", result.Text, "OK");
// Navigate away
// await Navigation.PopAsync();
MessagingCenter.Send(result.Text, "Result");
//var myMainPage = new ScannerSuccess();
//var navPage = new NavigationPage(myMainPage);
//Navigation.PopModalAsync();
//zxing.IsScanning = false;
//if (!string.IsNullOrEmpty(result.Text))
// await _navigationService.NavigateAsync("ScannerSuccess");
//else
//await _navigationService.NavigateAsync("ScannerFail");
});
overlay = new ZXingDefaultOverlay
{
TopText = "Hold your phone up to the barcode",
BottomText = "Scanning will happen automatically",
//ShowFlashButton = zxing.HasTorch,
};
overlay.FlashButtonClicked += (sender, e) => {
zxing.IsTorchOn = !zxing.IsTorchOn;
};
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
grid.Children.Add(zxing);
grid.Children.Add(overlay);
grid.Children.Add(abort);
// The root page of your application
Content = grid;
//Content = abort;
}
catch (Exception)
{
}
}
bool EnteredQtyBool = false; //tells us if we have entered quantity to scan.
public ScanPage(OrderItem scannableItem, IList <OrderItem> list)
{
InitializeComponent(); //calling content formed in ScanPage.xaml
OIList = list;
this.scannableItem = scannableItem; //Taking the OrderItem from OrderListView.
remainingScans = (int)scannableItem.QtyOrdered;
itemLabel.Text = "Item to be scanned: " + scannableItem.Name; //sets our label with the name of the item in case of mis tap.
/**
* var "options" allows you to choose what options you want your scanner to
* allow. Currently using it to AutoRotate. Another option, "TryHarder",
* gets or sets a flag which cause a deeper look into the bitmap.This
* just makes it so the camera focuses on the barcode quicker, though it
* does add room for misscans.
*/
var options = new MobileBarcodeScanningOptions
{
AutoRotate = true,
UseFrontCameraIfAvailable = false,
TryHarder = false
};
Button EnterQtyToScan = new Button
{
IsVisible = true,
BorderColor = Color.DarkGray,
Text = "Enter Amount",
};
/*
* Overlay sets our top and bottom texts, these texts will change once we scan items.
*/
var overlay = new ZXingDefaultOverlay
{
TopText = "Quantity scanned: " + qtyScanned.ToString() + "\t" + "Quantity remaining: " + scannableItem.QtyOrdered.ToString(),
BottomText = "Item Scanning: " + scannableItem.Name + "\r" + "Located in Section: " + scannableItem.LocationQOH.Replace(Environment.NewLine, " ") + "\r" + " You can enter amount up to one less than quantity remaining."
};
//Removes red line across screen
var redLine = overlay.Children.First(x => x.BackgroundColor == Color.Red);
overlay.Children.Remove(redLine);
//Removes top background color
var topLine = overlay.Children.First();
overlay.Children.Remove(topLine);
//Adding a clear lines to have more space to scan.
var clearLine = overlay.Children[2];
overlay.Children.AddVertical(clearLine);
overlay.Children.AddVertical(clearLine);
//Removes bottom background color
var bottomLine = overlay.Children.First();
overlay.Children.Remove(bottomLine);
//Setting our elements for our button on the scanner page
EnterQtyToScan.Scale = 1;
EnterQtyToScan.HorizontalOptions = LayoutOptions.Center;
EnterQtyToScan.Margin = 20;
EnterQtyToScan.BackgroundColor = Color.Gray;
overlay.Children.AddVertical(EnterQtyToScan); //adding our "Enter Amount" button to our overlay
//Once button is clicked, create a new scanPage with the options and overlay set above
btnScan.Clicked += async(a, s) =>
{
scanPage = new ZXingScannerPage(options, overlay);
overlay.FlashButtonClicked += (t, ed) => //Can be removed if target device has no flash capability
{
scanPage.ToggleTorch(); //If flash button is clicked it will toggle on/off.
};
EnterQtyToScan.Clicked += async(w, q) =>
{
EnteredQtyBool = true; //we pressed the "enter quantity to scan" button
while (tempEnteredAmount > scannableItem.QtyOrdered || tempEnteredAmount == -1) //while the amount we entered is greater than qtyOrdered or has not been entered yet.
{
//Prompt that will have us enter the quantity we wish to scan at once
string EnteredAmountToScan = await DisplayPromptAsync(scannableItem.Name, "How many of this item do you intend to pack?", "accept", "cancel", maxLength : 4, keyboard : Keyboard.Numeric);
if (EnteredAmountToScan == null)
{
EnterQtyToScan.Unfocus(); //Cancel button pressed we unfocus the prompt.
EnteredQtyBool = false;
return;
}
try
{
//tempEnteredAmount must be a valid number (0-one less than remainingScans) otherwise you will get an Error message.
tempEnteredAmount = Int32.Parse(EnteredAmountToScan); //try and set our global var
if (tempEnteredAmount > remainingScans) //if it exceeds our qty ordered we must display an error
{
await DisplayAlert("Error", "Amount entered exceeds quantity ordered.", "OK");
tempEnteredAmount = -1;
}
if (tempEnteredAmount < 0) //if it is negative we must display an error
{
await DisplayAlert("Error", "Amount must be a positive number.", "OK");
tempEnteredAmount = -1;
}
if (tempEnteredAmount == remainingScans) //if it equals our qty ordered we must display an error
{
await DisplayAlert("Error", "Amount entered must be at least one less than quantity ordered.", "OK");
tempEnteredAmount = -1;
}
}
catch
{
//If the number is a decimal we display an Error message.
await DisplayAlert("Error", "Invalid entry: entry must be a whole number.", "OK");
}
}
RemainingScans(); //After we leave our while loop we call our method to update our variables.
overlay.TopText = "Quantity scanned: " + qtyScanned.ToString() + "\r\n\r\n" + "Quantity remaining: " + remainingScans.ToString(); //overlay to represent how many scans remain after we enter our amount.
tempEnteredAmount = -1; //allows us to reenter our loop if we press the button again.
};
//Once we capture a barcode we "BeginInvokeOnMainThread" to check what we scanned
scanPage.OnScanResult += (result) =>
{
Device.BeginInvokeOnMainThread(async() =>
{
if (_isScanning)
{
_isScanning = false; //bool to stop _isScanning from allowing us to enter if() statement.
scanPage.IsAnalyzing = false; //stops scanning barcodes once this is implemented.
barCodeRead = result.Text; //sets barcode scanned in as a string
if (barCodeMatcher()) //If the scan matches the barcode from the OrderItem list, display the "Barcode Matches" alert.
{
RemainingScans(); //tells us how many more scan we have
overlay.TopText = "Quantity scanned: " + qtyScanned.ToString() + "\r\n\r\n" + "Quantity remaining: " + remainingScans.ToString(); //overlay to represent how many scans remain.
await DisplayAlert("Barcode Matches", result.Text + " , " + " Remaining Scans: " + remainingScans.ToString() + " , " + "QtyScanned: " + qtyScanned.ToString(), "OK");
if (doneScanning)
{
await Navigation.PopModalAsync(); //Takes us back to the page with the scan button to know we are done.
await DisplayAlert("Finished Scanning: ", scannableItem.Name + " is completed.", "OK"); //Alert to know we are done scanning an item.
await Navigation.PopAsync(); //Takes us back to the page where we choose which item we are about to scan.
OIList[OIList.IndexOf(scannableItem)].IsPacked = true; //sets our binding property to true
}
}
else
{
await DisplayAlert("Scanned Barcode", result.Text + " , " + result.BarcodeFormat + " ," + result.ResultPoints[0].ToString() + " , " + " Barcode does NOT match that of the selected item.", "OK"); //Every barcode scanned that does not match will display as an alert.
}
scanPage.IsAnalyzing = true; //Allows us to scan again once we "ok" the popup.
_isScanning = true; //Allows us to be able to reenter our if() statement.
}
});
};
await Navigation.PushModalAsync(scanPage); //Takes us to the page where we see what the camera is picking up
};
//If the wrong item is clicked hit the back button to get back to the list of items to be scanned.
btnBack.Clicked += async(a, s) =>
{
await Navigation.PopAsync(); //Takes us back to the page where we choose which item we are about to scan.
};
this.Content = Content; //sets our content from the .xaml
}
public async void Scan()
{
try
{
var options = new MobileBarcodeScanningOptions
{
AutoRotate = false,
UseFrontCameraIfAvailable = false,
TryHarder = true,
};
var overlay = new ZXingDefaultOverlay
{
TopText = "Please scan QR code",
BottomText = "Align the QR code within the frame"
};
var grid = new Grid();
RowDefinition row1 = new RowDefinition()
{
Height = 100
};
RowDefinition row2 = new RowDefinition();
RowDefinition row3 = new RowDefinition()
{
Height = 150
};
grid.RowDefinitions.Add(row1);
grid.RowDefinitions.Add(row2);
grid.RowDefinitions.Add(row3);
Label edit = new Label()
{
Text = "Đặt mã QR vào khung hình",
FontSize = 24,
HorizontalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
VerticalTextAlignment = TextAlignment.Center,
VerticalOptions = LayoutOptions.CenterAndExpand,
TextColor = Color.Red,
};
Grid grid1 = new Grid()
{
BackgroundColor = Color.Black, Opacity = 0.4f, VerticalOptions = LayoutOptions.FillAndExpand, HorizontalOptions = LayoutOptions.FillAndExpand
};
grid1.Children.Add(edit);
Grid.SetRow(grid1, 0);
grid.Children.Add(grid1);
var QRScanner = new ZXingScannerPage(options, grid);
await Navigation.PushModalAsync(QRScanner);
QRScanner.OnScanResult += (result) =>
{
// Stop scanning
QRScanner.IsScanning = false;
// Pop the page and show the result
Device.BeginInvokeOnMainThread(async() =>
{
TableOrderViewModel model = new TableOrderViewModel();
try
{
await Navigation.PopModalAsync(false);
if (result.Text.Contains("TABLE"))
{
IRES_Global.GlobalInfo.TableCode = result.Text;
string s = result.Text.Replace("TABLE", "");
var res = await model.OrderTable(int.Parse(s), DateTime.Now);
BtnMenu_Clicked(null, null);
}
else if (result.Text.Contains("ORDER"))
{
string z = result.Text.Replace("ORDER", "");
model.getOrderByCode(z);
}
}
catch
{
await Navigation.PopModalAsync(false);
if (result.Text.Contains("TABLE"))
{
IRES_Global.GlobalInfo.TableCode = result.Text;
string s = result.Text.Replace("TABLE", "");
var res = await model.OrderTable(int.Parse(s), DateTime.Now);
BtnMenu_Clicked(null, null);
}
else if (result.Text.Contains("ORDER"))
{
string z = result.Text.Replace("ORDER", "");
model.getOrderByCode(z);
}
}
});
};
}
catch (Exception ex)
{
// GlobalScript.SeptemberDebugMessages("ERROR", "BtnScanQR_Clicked", "Opening ZXing Failed: " + ex);
Device.BeginInvokeOnMainThread(() => {
// DisplayAlert("Scanned Barcode", ex.ToString(), "OK");
});
}
}