[Android] Fix excessive memory usage for stream and resource-based image loading

src/Controls/tests/TestCases.HostApp/Issues/Issue33239.cs

@@ -0,0 +1,106 @@
+#if ANDROID
+using Android.Graphics;
+using Android.Graphics.Drawables;
+using Android.Widget;
+#endif
+
+namespace Maui.Controls.Sample.Issues;
+
+[Issue(IssueTracker.Github, 33239, "Unexpected high Image ByteCount when loading an image from resources using ImageSource", PlatformAffected.Android)]
+public class Issue33239 : ContentPage
+{
+    Label _fileImageLabel;
+    Label _resourceImageLabel;
+    Image _resourceImage;
+    Image _fileImage;
+
+    public Issue33239()
+    {
+        var instructionLabel = new Label
+        {
+            Text = "Tap 'Measure ByteCount' to compare memory usage between stream-loaded (FromResource) and file-loaded (Source=\"royals.png\") images. Both should have similar byte counts after the fix.",
+            Margin = new Thickness(10)
+        };
+
+        // Image loaded via stream/resource path (the broken path before fix)
+        _resourceImage = new Image
+        {
+            Source = ImageSource.FromResource("Controls.TestCases.HostApp.Resources.Images.royals.png", typeof(Issue33239).Assembly),
+            HeightRequest = 200,
+            Margin = new Thickness(10),
+            AutomationId = "ResourceImage"
+        };
+
+        // Image loaded via file path (always works correctly)
+        _fileImage = new Image
+        {
+            Source = "royals.png",
+            HeightRequest = 200,
+            Margin = new Thickness(10),
+            AutomationId = "FileImage"
+        };
+
+        var measureButton = new Microsoft.Maui.Controls.Button
+        {
+            Text = "Measure ByteCount",
+            AutomationId = "MeasureButton",
+            Margin = new Thickness(10)
+        };
+        measureButton.Clicked += OnMeasureClicked;
+
+        _fileImageLabel = new Label
+        {
+            AutomationId = "FileImageLabel",
+            Margin = new Thickness(10),
+            LineBreakMode = LineBreakMode.WordWrap
+        };
+
+        _resourceImageLabel = new Label
+        {
+            AutomationId = "ResourceImageLabel",
+            Margin = new Thickness(10),
+            LineBreakMode = LineBreakMode.WordWrap
+        };
+
+        Content = new StackLayout
+        {
+            Children = { instructionLabel, _resourceImage, _fileImage, measureButton, _resourceImageLabel, _fileImageLabel }
+        };
+    }
+
+    private void OnMeasureClicked(object sender, EventArgs e)
+    {
+#if ANDROID
+        int resourceByteCount = GetBitmapByteCount(_resourceImage);
+        int fileByteCount = GetBitmapByteCount(_fileImage);
+
+        _resourceImageLabel.Text = $"ByteCount:{resourceByteCount}";
+        _fileImageLabel.Text = $"ByteCount:{fileByteCount}";
+#endif
+    }
+
+#if ANDROID
+    static int GetBitmapByteCount(Image image)
+    {
+        if (image?.Handler?.PlatformView is not ImageView imageView)
+            return 0;
+
+        if (imageView.Drawable is BitmapDrawable drawable && drawable.Bitmap != null)
+            return drawable.Bitmap.ByteCount;
+
+        // Fallback: render into a bitmap
+        if (imageView.Width > 0 && imageView.Height > 0 && Bitmap.Config.Argb8888 != null)
+        {
+            using var bitmap = Bitmap.CreateBitmap(imageView.Width, imageView.Height, Bitmap.Config.Argb8888);
+            if (bitmap != null)
+            {
+                var canvas = new Canvas(bitmap);
+                imageView.Draw(canvas);
+                return bitmap.ByteCount;
+            }
+        }
+
+        return 0;
+    }
+#endif
+}

src/Controls/tests/TestCases.Shared.Tests/Tests/Issues/Issue33239.cs

@@ -0,0 +1,25 @@
+#if ANDROID
+using NUnit.Framework;
+using UITest.Appium;
+using UITest.Core;
+
+namespace Microsoft.Maui.TestCases.Tests.Issues;
+
+public class Issue33239 : _IssuesUITest
+{
+    public override string Issue => "Unexpected high Image ByteCount when loading an image from resources using ImageSource";
+
+    public Issue33239(TestDevice device) : base(device) { }
+
+    [Test]
+    [Category(UITestCategories.Image)]
+    public void ImageFromResourceAndFileShouldHaveSimilarByteCount()
+    {
+        App.WaitForElement("MeasureButton");
+        App.Tap("MeasureButton");
+        var file = App.FindElement("FileImageLabel").GetText();
+        var resource = App.FindElement("ResourceImageLabel").GetText();
+        Assert.That(resource, Is.EqualTo(file));
+    }
+}
+#endif

src/Core/AndroidNative/maui/src/main/java/com/microsoft/maui/PlatformInterop.java

@@ -349,7 +349,8 @@ public static void loadImageFromUri(ImageView imageView, String uri, boolean cac
     public static void loadImageFromStream(ImageView imageView, InputStream inputStream, ImageLoaderCallback callback) {
         RequestBuilder<Drawable> builder = Glide
             .with(imageView)
-            .load(inputStream);
+            .load(inputStream)
+            .override(Target.SIZE_ORIGINAL, Target.SIZE_ORIGINAL);
         loadInto(builder, imageView, false, callback, inputStream);
     }
 
@@ -384,7 +385,8 @@ public static void loadImageFromUri(Context context, String uri, boolean caching
     public static void loadImageFromStream(Context context, InputStream inputStream, ImageLoaderCallback callback) {
         RequestBuilder<Drawable> builder = Glide
             .with(context)
-            .load(inputStream);
+            .load(inputStream)
+            .override(Target.SIZE_ORIGINAL, Target.SIZE_ORIGINAL);
         load(builder, context, false, callback, inputStream);
     }