[C#/MAUI/.NET6] ByteArrayToImageSourceConverter 엘리먼트 : 바이트 배열 ↔ 이미지 소스 변환자 사용하기

TestProject.zip

4.11MB

▶ MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="TestProject.MainPage"
    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit">
    <ContentPage.Resources>
        <toolkit:ByteArrayToImageSourceConverter x:Key="ByteArrayToImageSourceConverterKey" />
    </ContentPage.Resources>
    <Image
        HorizontalOptions="Center"
        VerticalOptions="Center"
        WidthRequest="300"
        Source="{Binding ImageByteArray, Mode=OneWay, Converter={StaticResource ByteArrayToImageSourceConverterKey}}" />
</ContentPage>

 

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▶ MainPage.xaml.cs

namespace TestProject;

/// <summary>
/// 메인 페이지
/// </summary>
public partial class MainPage : ContentPage
{
    //////////////////////////////////////////////////////////////////////////////////////////////////// Property
    ////////////////////////////////////////////////////////////////////////////////////////// Public

    #region 이미지 바이트 배열 - ImageByteArray

    /// <summary>
    /// 이미지 바이트 배열
    /// </summary>
    public byte[] ImageByteArray { get; set; }

    #endregion

    //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
    ////////////////////////////////////////////////////////////////////////////////////////// Public

    #region 생성자 - MainPage()

    /// <summary>
    /// 생성자
    /// </summary>
    public MainPage()
    {
        InitializeComponent();

        using Stream sourceStream = FileSystem.Current.OpenAppPackageFileAsync("sample.png").Result;

        using MemoryStream targetStream = new MemoryStream();

        sourceStream.CopyTo(targetStream);

        ImageByteArray = targetStream.ToArray();

        BindingContext = this;
    }

    #endregion
}

 

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▶ MauiProgram.cs

using CommunityToolkit.Maui;

namespace TestProject;

/// <summary>
/// MAUI 프로그램
/// </summary>
public static class MauiProgram
{
    //////////////////////////////////////////////////////////////////////////////////////////////////// Method
    ////////////////////////////////////////////////////////////////////////////////////////// Static
    //////////////////////////////////////////////////////////////////////////////// Public

    #region MAUI 앱 생성하기 - CreateMauiApp()

    /// <summary>
    /// MAUI 앱 생성하기
    /// </summary>
    /// <returns>MAUI 앱</returns>
    public static MauiApp CreateMauiApp()
    {
        MauiAppBuilder builder = MauiApp.CreateBuilder();

        builder
            .UseMauiApp<App>()
            .UseMauiCommunityToolkit()
            .ConfigureFonts
            (
                fontCollection =>
                {
                    fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" );
                    fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
                }
            );

        return builder.Build();
    }

    #endregion
}