[Proposal] `byte[]`-to-`ImageSource` Converter

ByteArrayToImageSourceConverter

• Proposed
• Prototype
• Implementation
  • iOS Support
  • Android Support
  • macOS Support
  • Windows Support
• Unit Tests
• Sample
• Documentation

Summary

The ByteArrayToImageSourceConverter is a Converter that allows the user to convert an incoming value from byte[] and returns an ImageSource. This object can then be used as the Source of an Image control.

Detailed Design

Usage Syntax

XAML Usage

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:xct="http://xamarin.com/schemas/2020/toolkit"
             x:Class="MyLittleApp.MainPage">
    <ContentPage.Resources>
         <ResourceDictionary>
             <xct:ByteArrayToImageSourceConverter x:Key="ByteArrayToImageSourceConverter" />
         </ResourceDictionary>
    </ContentPage.Resources>

    <StackLayout>

        <Image Source="{Binding MyByteArray, Converter={StaticResource ByteArrayToImageSourceConverter}}" />

    </StackLayout>
</ContentPage>

C# Usage

class MyPage : ContentPage
{
  public MyPage()
  {
    Content = new Image().Bind(Image.SourceProperty, named(ViewModel.MyByteArray), converter: new ByteArrayToImageSourceConverter());
  }
}

[CalvinAllen]

I know we talked about the tests being completed, but I noticed there weren’t any for ConvertBack, so I wrote a few and submitted PR #197

[msftbot[bot]]

Reopening Proposal.

Only Proposals moved to the Closed Project Column and Completed Project Column can be closed.