Invoke ScalingChanged when scaling changed on iOS (#18767)

maxkatz6 · MrJul · commit e94d54da9623 · 2025-05-01T16:02:08.000+02:00
diff --git a/src/iOS/Avalonia.iOS/AvaloniaView.cs b/src/iOS/Avalonia.iOS/AvaloniaView.cs
@@ -375,6 +375,11 @@ public override void LayoutSubviews()
         {
             _topLevelImpl.Resized?.Invoke(_topLevelImpl.ClientSize, WindowResizeReason.Layout);
             var scaling = (double)ContentScaleFactor;
+            if (_latestLayoutProps.scaling != scaling)
+            {
+                _topLevelImpl.ScalingChanged?.Invoke(scaling);
+            }
+
             _latestLayoutProps = (new PixelSize((int)(Bounds.Width * scaling), (int)(Bounds.Height * scaling)), scaling);
             if (_currentRenderTarget is not null)
             {

Original file line number	Diff line number	Diff line change
`@@ -375,6 +375,11 @@ public override void LayoutSubviews()`
`375`	`375`	`{`
`376`	`376`	`_topLevelImpl.Resized?.Invoke(_topLevelImpl.ClientSize, WindowResizeReason.Layout);`
`377`	`377`	`var scaling = (double)ContentScaleFactor;`
	`378`	`+ if (_latestLayoutProps.scaling != scaling)`
	`379`	`+ {`
	`380`	`+ _topLevelImpl.ScalingChanged?.Invoke(scaling);`
	`381`	`+ }`
	`382`	`+`
`378`	`383`	`_latestLayoutProps = (new PixelSize((int)(Bounds.Width * scaling), (int)(Bounds.Height * scaling)), scaling);`
`379`	`384`	`if (_currentRenderTarget is not null)`
`380`	`385`	`{`