Генерация изображения штрих-кода в MAUI приложении для Android
Категория: Штрих-коды; .NET; Android
7 мая 2024
<ItemGroup> <TrimmerRootAssembly Include="Vintasoft.Barcode" RootMode="library" /> <TrimmerRootAssembly Include="Vintasoft.Barcode.SkiaSharp" RootMode="library" /> <TrimmerRootAssembly Include="Vintasoft.Shared" RootMode="library" /> <TrimmerRootAssembly Include="Mono.Android" RootMode="library" /> </ItemGroup>
<?xml version="1.0" encoding="utf-8" ?> <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="MauiApp1.MainPage"> <ScrollView> <VerticalStackLayout Padding="30,0" Spacing="25"> <Image x:Name="barcodeImage" HeightRequest="300" Aspect="AspectFit"/> <Button x:Name="GenerateBarcodeBtn" Text="Generate Barcode" Clicked="OnGenerateBarcodeClicked" HorizontalOptions="Fill" /> </VerticalStackLayout> </ScrollView> </ContentPage>
// get the application name string applicationName = Vintasoft.Barcode.BarcodeGlobalSettings.ApplicationName; // if MAUI application is using in Android if (applicationName.StartsWith("Android")) { // register the evaluation license for VintaSoft Barcode .NET SDK Vintasoft.Barcode.BarcodeGlobalSettings.Register("LINUX_EVAL_USER", "LINUX_EVAL_USER_EMAIL", "LINUX_EVAL_END_DATE", "LINUX_EVAL_REG_CODE"); }
namespace MauiApp1 { public partial class MainPage : ContentPage { int count = 0; public MainPage() { InitializeComponent(); } private void OnGenerateBarcodeClicked(object sender, EventArgs e) { // get the application name string applicationName = Vintasoft.Barcode.BarcodeGlobalSettings.ApplicationName; // if MAUI application is using in Android if (applicationName.StartsWith("Android")) { // register the evaluation license for VintaSoft Barcode .NET SDK Vintasoft.Barcode.BarcodeGlobalSettings.Register("LINUX_EVAL_USER", "LINUX_EVAL_USER_EMAIL", "LINUX_EVAL_END_DATE", "LINUX_EVAL_REG_CODE"); } // create the barcode writer using (Vintasoft.Barcode.BarcodeWriter barcodeWriter = new Vintasoft.Barcode.BarcodeWriter()) { // specify that barcode writer must generate DataMatrix barcode barcodeWriter.Settings.Barcode = Vintasoft.Barcode.BarcodeType.DataMatrix; // specify value for DataMatrix barcode barcodeWriter.Settings.Value = "12345"; // create memory stream that will store generated barcode image as PNG file MemoryStream stream = new MemoryStream(); // generate barcode image and save as PNG file to the memory stream barcodeWriter.SaveBarcodeAsImage(stream, "png"); stream.Position = 0; barcodeImage.Source = ImageSource.FromStream(() => stream); } } } }