From c843ba01ccaca22eb7ad5df6e31a22cf5cfda4ad Mon Sep 17 00:00:00 2001
From: Andreas <andy.reitberger@gmail.com>
Date: Wed, 24 Dec 2025 16:40:58 +0100
Subject: [PATCH 1/2] Added `ToArray(Image image)` to `ImageHelper`

Fixed #325
---
 .../Utilities/ImageHelper.cs                      | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs b/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs
index 286b25a..f8edd14 100644
--- a/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs
+++ b/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs
@@ -7,10 +7,23 @@ public partial class ImageHelper
         public static byte[] ToArray(Microsoft.Maui.Graphics.IImage image)
         {
             using MemoryStream memory = new();
-
             image.Save(memory);
             return memory.ToArray();
         }
+
+        public static byte[] ToArray(Image image)
+        {
+            // Based on https://github.com/CommunityToolkit/Maui/blob/main/src/CommunityToolkit.Maui/Converters/ByteArrayToImageSourceConverter.shared.cs
+            if (image?.Source is not StreamImageSource streamImageSource)
+                return [];
+
+            using MemoryStream memory = new();
+            Stream? streamFromImageSource = streamImageSource.Stream(CancellationToken.None).GetAwaiter().GetResult();
+            if (streamFromImageSource is null)
+                return [];
+            streamFromImageSource.CopyTo(memory);
+            return memory.ToArray();
+        }
         #endregion
     }
 }

From 0bd4e69a4e6ef37647ad1210a5e662e6fcf9ecb8 Mon Sep 17 00:00:00 2001
From: Andreas <andy.reitberger@gmail.com>
Date: Wed, 24 Dec 2025 19:01:56 +0100
Subject: [PATCH 2/2] Improved `ImageHelper`

---
 common.props                                  |  1 +
 .../Utilities/ImageHelper.cs                  | 30 ++++++++++++++-----
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/common.props b/common.props
index 158bd39..714d10f 100644
--- a/common.props
+++ b/common.props
@@ -36,6 +36,7 @@
 		<!-- Ref: https://learn.microsoft.com/en-us/dotnet/maui/deployment/trimming?view=net-maui-10.0#suppress-analysis-warnings -->
 		<SuppressTrimAnalysisWarnings>false</SuppressTrimAnalysisWarnings>
 		<TrimmerSingleWarn>false</TrimmerSingleWarn>
+		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     </PropertyGroup>
 
     <ItemGroup>
diff --git a/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs b/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs
index f8edd14..6adf41e 100644
--- a/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs
+++ b/src/SharedMauiCoreLibrary/Utilities/ImageHelper.cs
@@ -10,20 +10,34 @@ public static byte[] ToArray(Microsoft.Maui.Graphics.IImage image)
             image.Save(memory);
             return memory.ToArray();
         }
-
-        public static byte[] ToArray(Image image)
+        public static byte[] ToArray(FileStream imageStream)
         {
-            // Based on https://github.com/CommunityToolkit/Maui/blob/main/src/CommunityToolkit.Maui/Converters/ByteArrayToImageSourceConverter.shared.cs
-            if (image?.Source is not StreamImageSource streamImageSource)
+            if (imageStream is null)
                 return [];
-
             using MemoryStream memory = new();
-            Stream? streamFromImageSource = streamImageSource.Stream(CancellationToken.None).GetAwaiter().GetResult();
-            if (streamFromImageSource is null)
+            imageStream.CopyTo(memory);
+            return memory.ToArray();
+        }
+        public static async Task<byte[]> ToArrayAsync(FileStream imageStream)
+        {
+            if (imageStream is null)
                 return [];
-            streamFromImageSource.CopyTo(memory);
+            using MemoryStream memory = new();
+            await imageStream.CopyToAsync(memory);
             return memory.ToArray();
         }
+        public static Task<byte[]> ToArrayAsync(string imagePath) => ToArrayAsync(GetImageStream(imagePath));
+        public static FileStream GetImageStream(string filePath) => File.OpenRead(filePath);
+        public static Task<FileStream> GetImageStreamAsync(string filePath) => Task.Run(() => File.OpenRead(filePath));
+        public static async Task<ImageSource?> LoadImageFromStream(string filePath)
+        {
+            if (File.Exists(filePath))
+            {
+                using FileStream imageStream = await GetImageStreamAsync(filePath).ConfigureAwait(false);
+                return ImageSource.FromStream(() => imageStream);
+            }
+            else return null;
+        }
         #endregion
     }
 }