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[net9.0] Merge main into net9.0 (#23126)
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* Size and SizeF should not throw on NaN

* Fix Release Versioning

* Upgrade from 1.5.1 to 1.5.4

* SwipeView Fix #22580 (#22741)

Co-authored-by: Javier Suárez <[email protected]>

* Update vscode extension recommendations

* [XC] Fix SimplifyTypeExtensionVisitor (#23043)

* Add test

* Fix the visitor

* Add SR6 to issue template (#23071)

* Make sure the main branch is using .NET 8 SDK (#23077)

* Make sure the main branch is using .NET 8 SDK

The main branch needs to use the .NET 8 SDK because we are building the .NET 7 TFMs as well. The .NET 9 SDK does not support .NET 7 TFMs anymore.

* no previews!

* Setup preview versioning for SR6.1

* Remove compat appium tests

Since we're moving in a different direction for moving these over in #22635 these projects (and the Issue11853 test, since it's in the other PR) can be deleted.

* [main] Update arcade and xharness (#22981)

* Update arcade

* Update dotnet-tools.json

* Update xharness
# Conflicts:
#	.config/dotnet-tools.json
#	eng/Version.Details.xml
#	eng/Versions.props

* Remove more references to removed projects

* Make titlebar button foreground colors use app theme

* Update dependencies from https://github.com/dotnet/xharness build 20240612.3 (#23088)

Microsoft.DotNet.XHarness.CLI , Microsoft.DotNet.XHarness.TestRunners.Common , Microsoft.DotNet.XHarness.TestRunners.Xunit
 From Version 9.0.0-prerelease.24311.2 -> To Version 9.0.0-prerelease.24312.3

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

* Add additional logging for PopLifeCycle

* Remove more legacy pipeline bits

* [iOS] Fixed NRE after calling ViewCell.ForceUpdateSize (#23094)

* [iOS] Fixed NRE after calling ViewCell.ForceUpdateSize

* - add test

---------

Co-authored-by: Shane Neuville <[email protected]>

* Add x:DataType to the carousel view UI tests (#23113)

* Bump to Android 34.0.113

Context: https://github.com/dotnet/android/releases/34.0.113
Changes: dotnet/android@34.0.79...34.0.113

I noticed the Android workload version used in dotnet/maui/main was a couple service releases old.

We should use the latest one, as it has a memory leak fix for `Post()`.

* Squashed commit of the following: (#22874)

commit db8a3bd
Author: Matthew Leibowitz <[email protected]>
Date:   Mon Jun 10 13:46:16 2024 +0800

    Add android

commit 0bd2d65
Author: Matthew Leibowitz <[email protected]>
Date:   Mon Jun 10 12:16:34 2024 +0800

    oops!

commit 647e5f5
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 18:15:40 2024 +0800

    Almost

commit c3ea650
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 16:17:58 2024 +0800

    sadfasdf

commit d9a398f
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 13:56:34 2024 +0800

    screenshots

commit 4b3c01f
Merge: 595ff03 e94b364
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 13:54:52 2024 +0800

    Merge branch 'main' into dev/gif-in-release

commit 595ff03
Author: Matthew Leibowitz <[email protected]>
Date:   Thu Jun 6 21:00:52 2024 +0800

    Update ImageUITests.cs

commit 2c20fe0
Author: Matthew Leibowitz <[email protected]>
Date:   Thu Jun 6 19:05:23 2024 +0800

    Make some tests

commit 1e82e8b
Author: Matthew Leibowitz <[email protected]>
Date:   Thu Jun 6 18:44:18 2024 +0800

    Take 2?

commit d576c82
Author: Matthew Leibowitz <[email protected]>
Date:   Thu Jun 6 07:11:17 2024 +0800

    Fix animated gifs in Release builds

* Fix loaded so it fires on second subscription (#23095)

* Fix loaded so it fires on second subscription

* Update VisualElement.cs

* Make sure the view is still alive after posting (#23114)

I saw in some of my local testing the shape view may
actually be disposed if you write code or when you
run the device tests.

When we come back after the UI loop, make sure the
platform view is still alive.

This should not happen if the view is attached to the
UI since it is still being used, but if you happen to
navigate or close some popup it may occur.

* [iOS] TapGestureRecognizer should not fire when view is not enabled (#23049)

* Don't receive touch when view is disabled

* Add UITest for Single Tap enabled/disabled

This removes the first pass unit test version which isn't really testing the scenario properly.

* Fix element automation id

* Don't fire tap for windows if control disabled

* Make failure case text less confusing

* [Tests] Update to Appium 5.0.0 (#23118)

* Update to appium 5.0.0

Their driver has some removed methods (LaunchApp/CloseApp) which seem to be now implemented for windows.

Also removed an extra explicit ref to system.drawing.common since it comes in transitively from appium.webdriver package (and the version was causing issues since the newer appium.webdriver uses a newer version).

* Fix windows launchapp/closeapp for newer appium

In Appium's dotnet driver in v5.0.0 they removed `LaunchApp` from the driver: appium/dotnet-client#766

The deprecation suggests using `ActivateApp` as an alternative, but that throws an error saying it's not implemented on the windows driver.

Curiously, `CloseApp` which was also marked as deprecated was _moved_ from the base appium driver to the `WindowsDriver` here: appium/dotnet-client#773

I think the same treatment should have been done to the `LaunchApp` method since there's no alternative in windows.

For now the workaround is to invoke the command manually:
`windowsDriver.ExecuteScript("windows: launchApp", [_app.GetAppId()]);`

* Use correct interface type in FrameRenderer (#23124)

* Use correct interface type in FrameRenderer (#23124) (#23146)

* Squashed commit of the following: (#19629)

commit f6c3bfa
Merge: d0b3f84 3143629
Author: Matthew Leibowitz <[email protected]>
Date:   Mon Jun 17 19:58:40 2024 +0800

    Merge remote-tracking branch 'origin/main' into dev/macos-actionsheet

commit d0b3f84
Author: Matthew Leibowitz <[email protected]>
Date:   Tue Jun 11 05:00:38 2024 +0800

    Fix the older macOS testing

commit 3dc6b4d
Author: Matthew Leibowitz <[email protected]>
Date:   Mon Jun 10 23:40:40 2024 +0800

    macOS 13 things

commit e3e48e4
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 02:15:55 2024 +0800

    docs

commit 693d79c
Merge: 3dbce49 a3c872d
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 02:08:31 2024 +0800

    Merge remote-tracking branch 'origin/main' into dev/macos-actionsheet

commit 3dbce49
Merge: 17ea9c6 93a1bc4
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 02:06:16 2024 +0800

    Merge remote-tracking branch 'origin/main' into dev/macos-actionsheet

commit 17ea9c6
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Jun 8 02:05:42 2024 +0800

    Fix the tests

commit 026da41
Author: Matthew Leibowitz <[email protected]>
Date:   Fri Jun 7 03:56:26 2024 +0800

    fixes

commit d2b85d5
Author: Matthew Leibowitz <[email protected]>
Date:   Thu Jun 6 23:58:33 2024 +0800

    namespaces

commit 9fa77cd
Merge: 3f9596b 9d71d32
Author: Matthew Leibowitz <[email protected]>
Date:   Thu Jun 6 23:57:00 2024 +0800

    Merge branch 'main' into dev/macos-actionsheet

    # Conflicts:
    #	src/Controls/samples/Controls.Sample.UITests/Test.cs
    #	src/Controls/src/Core/Platform/AlertManager/AlertManager.iOS.cs
    #	src/Controls/tests/TestCases.Shared.Tests/Tests/Concepts/AlertsGalleryTests.cs
    #	src/Controls/tests/TestCases/Concepts/AlertsGalleryPage.cs
    #	src/TestUtils/src/UITest.Appium/AppiumCatalystApp.cs
    #	src/TestUtils/src/UITest.Appium/HelperExtensions.cs

commit 3f9596b
Author: Matthew Leibowitz <[email protected]>
Date:   Sat Dec 30 09:29:31 2023 +0200

    Add some UI tests

    Done: iOS/macOS/Android. TODO: Windows

commit 68c930f
Author: Matthew Leibowitz <[email protected]>
Date:   Tue Dec 19 18:15:51 2023 +0200

    macOS does not use PopoverPresentationController

    Fixes #18156

* [ios/catalyst] fix more cycles in `NavigationPage`

Fixes: #21453
Context: #22810

In #22810, a leak in `NavigationPage` was fixed for the case:

    Application.Current.MainPage = new NavigationPage(new Page1());
    Application.Current.MainPage = new Page2();

However, it does *not* work for the case:

    await Navigation.PushModalAsync(new NavigationPage(new Page1()));
    await Navigation.PopModalAsync();

I could reproduce this problem in `MemoryTests.cs`.

There were still a few cycles in `NavigationRenderer`:

* `NavigationRenderer` -> `VisualElement _element` -> `NavigationRenderer`

* `NavigationRenderer` -> `Page Current` -> `NavigationRenderer`

* `NavigationRenderer` -> `ViewHandlerDelegator<NavigationPage> _viewHandlerWrapper` ->  `TElement _element` -> `NavigationRenderer`

After fixing these cycles, the test passes.

`ViewHandlerDelegator` was slightly tricky, as I had to make a
`_tempElement` variable and *unset* it immediately after use.

* Only change ViewHandlerDelegator for iOS/Catalyst

* [ios] fix leak in ListView *Cells (#23143)

* [ios] fix leak in ListView *Cells

Fixes: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/2064274

After fixing #22867 for `CollectionView`, there was still a problem with
`ListView`. The following types were leaking in the sample app:

* `UIKit.UITableView`
* `Microsoft.Maui.Controls.Handlers.Compatibility.ViewCellRenderer.ViewTableCell`
* `Microsoft.Maui.Platform.MauiLabel`
* `Microsoft.Maui.Platform.MauiImageView`
* `Microsoft.Maui.Platform.WrapperView`

After a lot of debugging, we found that `Cell` was holding a reference
to the `UITableView`. This pointed *up* in the hierarchy, creating
a cycle.

I updated an existing device test to ensure the problem is solved.

* Fix missing handlers in tests

* Remove assertion

* Fix UITableView reference

* Update a different test

* Can't enumerate while adding

* Missed a null check

* [Housekeeping] Added UI Test to validate project template (#18567)

* Added template UI Test

* Added pending snapshot

* Updated snapshot

* Generate snapshots for all the platforms

* Added pending snapshots

* Updated snapshot

* More changes

* Updated droid snapshot

* More changes

* Updated snapshots

* Added sample path

* Update Issue19509.cs

* Update Issue19509.cs

---------

Co-authored-by: Shane Neuville <[email protected]>

* Optimize resetting gesture recognizers (#19987)

* reduce LINQ usage

* Remove useless check that will always be false

* use HashSet

* reduce enumerations and casting

* reduce LINQ usage

* only cast once

* add benchmarks

* fix build

---------

Co-authored-by: Edward Miller <[email protected]>

* [Windows] Fix ListView insert not working properly (#22746)

* Add test

* Remove force layout update during collection changed event

* Adjust await

* Update ListViewTests.Windows.cs

---------

Co-authored-by: Mike Corsaro <[email protected]>

* Fix <ApplicationTitle> encoding in maui templates (#22084)

* Makes <ApplicationTitle> use a custom symbol instead of the default name parameter to ensure the name is XML encoded where necessaru
* Adds new tests for various encodings and special characters
---------

Co-authored-by: Eilon Lipton <[email protected]>

* Fixed a null check #15102 (#23170)

* [ios/catalyst] fix memory leak in TabbedPage (#23166)

* [ios/catalyst] fix memory leak in TabbedPage

Context: #23164

Just the same way as `NavigationPage` in #23164, `TabbedPage` also has
a memory leak caused by the cycle:

* `TabbedPage` -> `TabbedRenderer` -> `VisualElement _element;` -> `TabbedPage

I could add a new `[Theory]` in `MemoryTests.cs` to see the issue.

This PR fixes the memory leak by breaking the cycle in `TabbedRenderer`.

* Ignore test on Windows

I also cleaned up the Task.Delay()

* [iOS] Set PlatformGraphicsView to transparent input (#23208)

* Avoid JavaCast and exceptions and ask Java (#23215)

* Wire RefreshView up to our xplat layout workflow (#23169)

* Use better layout/measure path with refreshview

* - fix naming

* - set RefreshView content to maui compatible container

* - add test

* - fix null operator

* Update Issue23029.xaml.cs

* - fix content panel so it removes previous content

* - add additional check

* Fix Merge

---------

Co-authored-by: Matthew Leibowitz <[email protected]>
Co-authored-by: MartyIX <[email protected]>
Co-authored-by: Jakub Florkowski <[email protected]>
Co-authored-by: Javier Suárez <[email protected]>
Co-authored-by: redth <[email protected]>
Co-authored-by: Šimon Rozsíval <[email protected]>
Co-authored-by: Rui Marinho <[email protected]>
Co-authored-by: Mike Corsaro <[email protected]>
Co-authored-by: dotnet-maestro[bot] <42748379+dotnet-maestro[bot]@users.noreply.github.com>
Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>
Co-authored-by: Vitaly Knyazev <[email protected]>
Co-authored-by: Jonathan Peppers <[email protected]>
Co-authored-by: Jonathan Dick <[email protected]>
Co-authored-by: Edward Miller <[email protected]>
Co-authored-by: Edward Miller <[email protected]>
Co-authored-by: Mike Corsaro <[email protected]>
Co-authored-by: Michael Yanni <[email protected]>
Co-authored-by: Eilon Lipton <[email protected]>
Co-authored-by: Tim Miller <[email protected]>
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20 people authored Jun 25, 2024
1 parent 27a83b7 commit 0572098
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Showing 111 changed files with 1,914 additions and 530 deletions.
2 changes: 1 addition & 1 deletion .config/dotnet-tools.json
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
]
},
"microsoft.dotnet.xharness.cli": {
"version": "9.0.0-prerelease.24311.2",
"version": "9.0.0-prerelease.24312.3",
"commands": [
"xharness"
]
Expand Down
2 changes: 2 additions & 0 deletions .github/ISSUE_TEMPLATE/bug-report.yml
Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,7 @@ body:
- 9.0.0-preview.3.10457
- 9.0.0-preview.2.10293
- 9.0.0-preview.1.9973
- 8.0.60 SR6
- 8.0.40 SR5
- 8.0.21 SR4.1
- 8.0.20 SR4
Expand Down Expand Up @@ -111,6 +112,7 @@ body:
- 8.0.20 SR4
- 8.0.21 SR4.1
- 8.0.40 SR5
- 8.0.60 SR6
- 9.0.0-preview.1.9973
- 9.0.0-preview.2.10293
- 9.0.0-preview.3.10457
Expand Down
6 changes: 3 additions & 3 deletions .vscode/extensions.json
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
{
"recommendations": [
"ms-dotnettools.csharp",
"ms-vscode.mono-debug",
"visualstudioexptteam.vscodeintellicode",
"ms-dotnettools.vscodeintellicode-csharp",
"ms-dotnettools.dotnet-maui",
"github.copilot-chat"
]
}
12 changes: 6 additions & 6 deletions eng/Version.Details.xml
Original file line number Diff line number Diff line change
Expand Up @@ -135,17 +135,17 @@
<Uri>https://github.com/dotnet/runtime</Uri>
<Sha>4a0a04cf3e8b8c2a3613270df7f838246e4597e8</Sha>
</Dependency>
<Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Common" Version="9.0.0-prerelease.24311.2">
<Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Common" Version="9.0.0-prerelease.24312.3">
<Uri>https://github.com/dotnet/xharness</Uri>
<Sha>975b330d51119efc4884f7a323784662cbf74391</Sha>
<Sha>6ce15319de72ab6d4c3b0f4c40f59300cffc5450</Sha>
</Dependency>
<Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Xunit" Version="9.0.0-prerelease.24311.2">
<Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Xunit" Version="9.0.0-prerelease.24312.3">
<Uri>https://github.com/dotnet/xharness</Uri>
<Sha>975b330d51119efc4884f7a323784662cbf74391</Sha>
<Sha>6ce15319de72ab6d4c3b0f4c40f59300cffc5450</Sha>
</Dependency>
<Dependency Name="Microsoft.DotNet.XHarness.CLI" Version="9.0.0-prerelease.24311.2">
<Dependency Name="Microsoft.DotNet.XHarness.CLI" Version="9.0.0-prerelease.24312.3">
<Uri>https://github.com/dotnet/xharness</Uri>
<Sha>975b330d51119efc4884f7a323784662cbf74391</Sha>
<Sha>6ce15319de72ab6d4c3b0f4c40f59300cffc5450</Sha>
</Dependency>
</ProductDependencies>
<ToolsetDependencies>
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8 changes: 4 additions & 4 deletions eng/Versions.props
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Expand Up @@ -62,7 +62,7 @@
<MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>9.0.0-preview.5.24273.1</MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion>
<MicrosoftNETWorkloadEmscriptenPackageVersion>$(MicrosoftNETWorkloadEmscriptenCurrentManifest90100TransportVersion)</MicrosoftNETWorkloadEmscriptenPackageVersion>
<!-- wasdk -->
<MicrosoftWindowsAppSDKPackageVersion>1.5.240311000</MicrosoftWindowsAppSDKPackageVersion>
<MicrosoftWindowsAppSDKPackageVersion>1.5.240607001</MicrosoftWindowsAppSDKPackageVersion>
<MicrosoftWindowsSDKBuildToolsPackageVersion>10.0.22621.756</MicrosoftWindowsSDKBuildToolsPackageVersion>
<MicrosoftGraphicsWin2DPackageVersion>1.2.0</MicrosoftGraphicsWin2DPackageVersion>
<!-- Everything else -->
Expand Down Expand Up @@ -108,9 +108,9 @@
<_HarfBuzzSharpVersion>7.3.0.2</_HarfBuzzSharpVersion>
<_SkiaSharpNativeAssetsVersion>0.0.0-commit.7af1d0840a381c0ce7ef2877454a88dbb2949686.1086</_SkiaSharpNativeAssetsVersion>
<MicrosoftTemplateEngineTasksVersion>7.0.114</MicrosoftTemplateEngineTasksVersion>
<MicrosoftDotNetXHarnessTestRunnersCommonVersion>9.0.0-prerelease.24311.2</MicrosoftDotNetXHarnessTestRunnersCommonVersion>
<MicrosoftDotNetXHarnessTestRunnersXunitVersion>9.0.0-prerelease.24311.2</MicrosoftDotNetXHarnessTestRunnersXunitVersion>
<MicrosoftDotNetXHarnessCLIVersion>9.0.0-prerelease.24311.2</MicrosoftDotNetXHarnessCLIVersion>
<MicrosoftDotNetXHarnessTestRunnersCommonVersion>9.0.0-prerelease.24312.3</MicrosoftDotNetXHarnessTestRunnersCommonVersion>
<MicrosoftDotNetXHarnessTestRunnersXunitVersion>9.0.0-prerelease.24312.3</MicrosoftDotNetXHarnessTestRunnersXunitVersion>
<MicrosoftDotNetXHarnessCLIVersion>9.0.0-prerelease.24312.3</MicrosoftDotNetXHarnessCLIVersion>
<TizenUIExtensionsVersion>0.9.2</TizenUIExtensionsVersion>
<SvgSkiaPackageVersion>1.0.0.16</SvgSkiaPackageVersion>
<FizzlerPackageVersion>1.3.0</FizzlerPackageVersion>
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10 changes: 8 additions & 2 deletions src/Controls/src/Core/Cells/Cell.cs
Original file line number Diff line number Diff line change
Expand Up @@ -273,7 +273,7 @@ async void OnForceUpdateSizeRequested()
// don't run more than once per 16 milliseconds
await Task.Delay(TimeSpan.FromMilliseconds(16));
ForceUpdateSizeRequested?.Invoke(this, null);
Handler.Invoke("ForceUpdateSizeRequested", null);
Handler?.Invoke("ForceUpdateSizeRequested", null);

_nextCallToForceUpdateSizeQueued = false;
}
Expand Down Expand Up @@ -307,8 +307,14 @@ void OnParentPropertyChanging(object sender, PropertyChangingEventArgs e)
internal Android.Views.View ConvertView { get; set; }
#elif IOS
internal UIKit.UITableViewCell ReusableCell { get; set; }
internal UIKit.UITableView TableView { get; set; }

WeakReference<UIKit.UITableView> _tableView;

internal UIKit.UITableView TableView
{
get => _tableView?.GetTargetOrDefault();
set => _tableView = value is null ? null : new(value);
}
#endif


Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -176,7 +176,7 @@ protected override void OnLayout(bool changed, int l, int t, int r, int b)


if (Element.Handler is IPlatformViewHandler pvh &&
Element is IContentView cv)
Element is ICrossPlatformLayout cv)
{
pvh.LayoutVirtualView(l, t, r, b, cv.CrossPlatformArrange);
}
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -260,8 +260,6 @@ void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
ClearSizeEstimate();
ReloadData();
}

Element.Dispatcher.DispatchIfRequired(() => List?.UpdateLayout());
}

protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ public class CellRenderer : ElementHandler<Cell, UITableViewCell>, IRegisterable

public static CommandMapper<Cell, CellRenderer> CommandMapper =
new CommandMapper<Cell, CellRenderer>(ElementHandler.ElementCommandMapper);
UITableView? _tableView;
WeakReference<UITableView>? _tableView;

private protected event PropertyChangedEventHandler? CellPropertyChanged;

Expand All @@ -37,7 +37,7 @@ protected override UITableViewCell CreatePlatformElement()

public virtual UITableViewCell GetCell(Cell item, UITableViewCell reusableCell, UITableView tv)
{
_tableView = tv;
_tableView = new(tv);
Performance.Start(out string reference);

var tvc = reusableCell as CellTableViewCell ?? new CellTableViewCell(UITableViewCellStyle.Default, item.GetType().FullName);
Expand Down Expand Up @@ -173,15 +173,17 @@ public override void Invoke(string command, object? args)

if (command == "ForceUpdateSizeRequested" &&
VirtualView is BindableObject bindableObject &&
GetRealCell(bindableObject) is UITableViewCell ctv)
GetRealCell(bindableObject) is UITableViewCell ctv &&
_tableView is not null &&
_tableView.TryGetTarget(out var tableView))
{
var index = _tableView?.IndexPathForCell(ctv);
var index = tableView.IndexPathForCell(ctv);
if (index == null && VirtualView is Cell c)
{
index = Controls.Compatibility.Platform.iOS.CellExtensions.GetIndexPath(c);
}
if (index != null)
_tableView?.ReloadRows(new[] { index }, UITableViewRowAnimation.None);
tableView.ReloadRows(new[] { index }, UITableViewRowAnimation.None);
}
}
}
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,8 @@ public class NavigationRenderer : UINavigationController, INavigationViewHandler
public static CommandMapper<NavigationPage, NavigationRenderer> CommandMapper = new CommandMapper<NavigationPage, NavigationRenderer>(ViewHandler.ViewCommandMapper);
ViewHandlerDelegator<NavigationPage> _viewHandlerWrapper;
bool _navigating = false;
VisualElement _element;
WeakReference<VisualElement> _element;
WeakReference<Page> _current;
bool _uiRequestedPop; // User tapped the back button or swiped to navigate back
MauiNavigationDelegate NavigationDelegate => Delegate as MauiNavigationDelegate;

Expand All @@ -60,14 +61,18 @@ public NavigationRenderer() : base(typeof(MauiControlsNavigationBar), null)
Delegate = new MauiNavigationDelegate(this);
}

Page Current { get; set; }
Page Current
{
get => _current?.GetTargetOrDefault();
set => _current = value is null ? null : new(value);
}

IPageController PageController => Element as IPageController;

NavigationPage NavPage => Element as NavigationPage;
INavigationPageController NavPageController => NavPage;

public VisualElement Element { get => _viewHandlerWrapper.Element ?? _element; }
public VisualElement Element { get => _viewHandlerWrapper.Element ?? _element?.GetTargetOrDefault(); }

public event EventHandler<VisualElementChangedEventArgs> ElementChanged;

Expand All @@ -85,7 +90,7 @@ public UIView NativeView
public void SetElement(VisualElement element)
{
(this as IElementHandler).SetVirtualView(element);
_element = element;
_element = element is null ? null : new(element);
}

public UIViewController ViewController
Expand Down Expand Up @@ -171,7 +176,8 @@ public override void ViewDidDisappear(bool animated)
public override void ViewWillLayoutSubviews()
{
base.ViewWillLayoutSubviews();
if (Current == null)

if (Current is not Page current)
return;

UpdateToolBarVisible();
Expand All @@ -180,7 +186,7 @@ public override void ViewWillLayoutSubviews()
var toolbar = _secondaryToolbar;

//save the state of the Current page we are calculating, this will fire before Current is updated
_hasNavigationBar = NavigationPage.GetHasNavigationBar(Current);
_hasNavigationBar = NavigationPage.GetHasNavigationBar(current);

// Use 0 if the NavBar is hidden or will be hidden
var toolbarY = NavigationBarHidden || NavigationBar.Translucent || !_hasNavigationBar ? 0 : navBarFrameBottom;
Expand Down Expand Up @@ -475,8 +481,8 @@ void HandlePropertyChanged(object sender, PropertyChangedEventArgs e)
}
else if (e.PropertyName == NavigationPage.CurrentPageProperty.PropertyName)
{
Current = NavPage?.CurrentPage;
ValidateNavbarExists(Current);
var current = Current = NavPage?.CurrentPage;
ValidateNavbarExists(current);
}
else if (e.PropertyName == IsNavigationBarTranslucentProperty.PropertyName)
{
Expand Down Expand Up @@ -806,7 +812,7 @@ void UpdateBarTextColor()
}

// set Tint color (i. e. Back Button arrow and Text)
var iconColor = Current != null ? NavigationPage.GetIconColor(Current) : null;
var iconColor = Current is Page current ? NavigationPage.GetIconColor(current) : null;
if (iconColor == null)
iconColor = barTextColor;

Expand Down Expand Up @@ -860,8 +866,8 @@ void UpdateToolBarVisible()

if (currentHidden != _secondaryToolbar.Hidden)
{
if (Current?.Handler != null)
Current.ToPlatform().InvalidateMeasure(Current);
if (Current is Page current && current.Handler is not null)
current.ToPlatform().InvalidateMeasure(current);

if (VisibleViewController is ParentingViewController pvc)
pvc.UpdateFrames();
Expand Down Expand Up @@ -1716,7 +1722,7 @@ void IElementHandler.SetMauiContext(IMauiContext mauiContext)
void IElementHandler.SetVirtualView(Maui.IElement view)
{
_viewHandlerWrapper.SetVirtualView(view, ElementChanged, false);
_element = view as VisualElement;
_element = view is VisualElement v ? new(v) : null;

void ElementChanged(ElementChangedEventArgs<NavigationPage> e)
{
Expand Down
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