unoplatform/uno 3.1.6 on GitHub

The 3.1 release is our 6th release in 2020! In our 2019 survey you had asked to release more often and we hope we have delivered.

In year 2019, we had a total of 4 releases and in 2020 we are already up to 6. We also hope to have at least one more release by the end of the year!

The 3.1 release is special not only because of the new scenarios it unlocks, but also because of significant community contributions we are able to ship – thanks a lot to @robloo, @dansiegel and @MartinZikmund for your contributions.

For this 3.1 release, we were able to add over 70 features and close over 140 code and documentation issues. Let’s unpack the release.

The first preview release of the Linux and Windows 7 support using a new Skia rendering backend. We’ve already started using it on the Uno Calculator, and it’s looking great!
The WinUI 2.x TabView and TreeView controls for Skia and WebAssembly, the other platforms are coming. (Thanks @MartinZikmund)
ScrollViewer XAML ScrollBars for WebAssembly and Skia
Improvements to the VSIX/dotnet new updates, such as new item templates in the VS, .vsconfig support to suggest VS features to install, and Skia Backend templates.
The support for StorageFile.GetFileFromApplicationUriAsync, to use large assets packaged with the application, something particularly useful in the WebAssembly context.
The WinUI ColorPicker support (iOS/Android) (Thanks @robloo)
WebAssembly support for Canvas.ZIndex
Support for x:Bind plain C# objects bindings, as well as Bindings.Update()
Windows.Globalization.Calendar updates, paving the way for Date and Time pickers
FolderPicker support for macOS (Thanks @MartinZikmund)
BadgeNotifications for Android and iOS (Thanks @MartinZikmund)
Page supports background brushes
Fixes for NavigationView navigation items binding
Voice over support for WebAssembly

And finally, the whole new Prism 8 templates updates for the dotnet new experience.

Here's the detailed change log for this release:

Features

dependecyproperty: New internal obj.GetValueForEachPrecedences(prop) for tests and diagnostics c6605d7
Droid: Enabled TextBox.CharacterCasing a0d714c
Add one-line method to set native frame navigation styles b228b16
Add welcome page for vsix, set UWP as startup project 8995335
Initialize property respecting platform spec 28640cc
PhoneCallHistory common structs d482bbb
TextBox add partial method 2e24ba8
ToastNotificationActivatedEventArgs structs for all 8838300
Updated default value to match UWP fdda6c5
PointerCursor: Support for WPF & GTK eed57c3
pointers: [Skia] Enable hit test caching (perf) 5da4d00
pointers: [Skia] Fix the stale branch detection while hit testing c1f9755
pointers: [Skia] Use the already existing bubbling algorithm for pointer 17c81a4
pointers: Add ability to aggregate intermediate elements while wlking the tree to compute the transform from an element to another one 3be13e4
pointers: Add element hit test cahcing 5bfae6c
pointers: Enable hit testing caching 2903573
pointers: Enable ScrollBars on Skia 7e5c387
pointers: First working implementation of managed event dispatch with valid OriginalSource detection c6aa81f
pointers: Remove broken hit test element caching c246b01
scrollviewer: Restore the managed ScrollBar in default ScrollVirwer template for WASM 7d0e40c
skia: Add support for netcore3.1/5 in Skia.WPF e2d4eb2
skia: Add support for WriteableBitmap 8da3a80
storage: [Android] Add support for GetFileFromApplicationUriAsync 55d300d
storage: [ios/macos] add support for StorageFile.GetFileFromApplicationUriAsync 80262f0
storage: [Wasm] Add support for GetFileFromApplicationUriAsync d3bc03a
vsix: Add ContentDialog, Resource, CustomControl and UserControl VS 2019 templates. c2ca533
vsix: Add support for .vsconfig file for dotnet new and vsix bf463fa
vsix: Include Skia targets fde903c
WASM: Enable A11y voice over capabilities 8b2dbc6
WASM: Set a11y properties all the time 2c126b4
WASM: Set both a11y attributes at once 978669f
WASM: update role finder method ec46a0e
wasm_zindex: Added support for Canvas.ZIndex to Wasm platform b857844
xf: Update X.F templates to use 4.8 release 9b05b58
Contact support struct/enums c48be37
CoreApplicationView.CoreWindow property 800ac7a
more fields in Geoposition (on Android) 81fbb8d
calendar: Update support for Calendar formatting and others f8cf74d
skia: Fix element not removed from the visual tree and Unloaded event never invoked 3f273fe
xbind: Add support for x:Bind to POCO, performance improvements. 2cb22f7
[Skia] Add CrossRuntime library support e67d672
Add CancellationToken propagation da5d8aa
Add HAS_UNO for non uap targets 6bbcaec
Add includeCurrent flag to FindFirstParent() e9f0c36
Add Skia (Gtk/Wpf) unoapp heads in dotnet new 0c6a958
Add support DataTemplate is container host 49c46f4
AppModel-Background-struct 87f2cc8
Finished implementation of TreeView class 80cc015
Finished TreeViewViewModel implementation f9cf8f8
FolderPicker on macOS ea28b8d
implementation of CalendarDatePickerDateChangedEventArgs 12aeca1
Implemented SelectedItemsVector and SelectedTreeNodeVector de9e4a3
Updated MUX package for UWP samples app ffb65fb
AutomationPeer: Add methods with default return values 9274560
BadgeNotification: iOS support 63811aa
BadgeNotification: macOS support 949608b
ColorPicker: Add ColorConversion, Hsv & Rgb structs 95a4bd1
ColorPicker: Add ColorPicker control including ColorPickerSlider 16fc608
ColorPicker: Add ColorSpectrum control bb2d504
droid: Add support for InvokeScriptAsync on WebView 9c494cb
iOS: Add support for InvokeScriptAsync on WebView 8c8fdb8
macOS: Update src/Uno.UI/UI/Xaml/Controls/ScrollContentPresenter/NativeScrollContentPresenter.macOS.cs 3415d38
NSUImageExtensions: added monochrome image recoloring for macOS 3d112d6
shared: change the winjs font for a new fluent style font cda7703
Symbol: Add missing symbols ce04184
Tizen: Initial target support 9ac9460
wasm: Added .ShowLocalVisualTree() for wasm platform 42b5c47
Throw appropriate exception when obtaining location without permission 92af4f2
TimeTrigger (struct) f605056
ToastNotification and NotificationMirroring definitions ab317b0
UserProfilePersonalizationSettings on Android 3634888

Bug Fixes

dependencypropertyprecedence: Changed the precedence override to use a stack instead of a single field. d7e0822
Droid: Remove multiple partial implementation 49f2ae5
iOS: Remove warnings when building the iOS head 7ac08e5
skia: Adjust visual clipping for ScrollViewer 6a3839b
style_precedences: First setter on a style were applying its value on the target using the "Local" precedence. 388b162
[iOS] [Android] Prevent Render() method from reentering 163128a
Handle NullExtension in XAML code generation 25a08ce
skia: Hide Visuals for zero arrange, reduce refresh load f8818db
[WASM] ContentPresenter.Background re-renders when Color changes 13f3aa2
Drawable error message made more clear 1f3c00f
Fully quality BindableMetadata generated types aad95fe
TextBox.VerticalContentAlignment 40fe514
combobox: [iOS] Fix memory leak c85f2a3
ContentDialog: [iOS] Fix memory leak 623c02d
fips: Use SHA256 for sourcegenerator path hashing c83223b
ListViewBase: Item container indices not updated on insert/remove 80ebd54
ListViewBase: Item container indices not updated on insert/remove ebdca5d
macOS: exception on Scrollview contentchanged 709b988
NativeApplication: don't call OnLaunched again if app is already running (i.e. when focus is regained) f3ba2b6
net5: Fix for net5 source generation nullable references support 671947f
publish: Fixes publish to azure may fail with locked files c02eae2
samples: Ensure the app can finish even in exceptional cases a769295
skia: Adjust error handling for skia samples run 675dcd4
skia: Fix content file deployment from VS d4eae5f
skia: Remove inner visual from panel on element removal 6bd6a03
skia: Remove NotImplemented on FrameworkElement.Dispose() 9c372eb
TemplatePool: Fix TemplatePooling may still be active when disabled 5e11ee0
test: [Wasm] Adjust WindowHelper.WaitForIdle to actually wait for idle c000291
TextBox: fixed multiline textbox height not scaling properly on wasm c586e09
Add documentation for add reference issue in cross targeted project ec998aa
Add workaround for intellisense issues in the Android project 155d124
Added MUX styles to run Samples on Windows 735ca30
Don't propagate DataContext via Border.Child 0dc34bd
Fix Slider thumb not visible when Value is at maximum b9d0083
move ListViewItem.cs to Controls folder ea379ce
Update Shape.Fill when LinearGradientBrush gradient stops change 947d2dd
analyzers: Analyzers may not show the proper status using the reference API c58565e
combobox: PlaceholderText not displaying c4c1109
doc: updating font doc is easier to read 37bcfef
NavigationView: toggle pane button width when light-dismissed 21b3bdc
shapes: [Skia] Adjust shapes path alignment given StrokeThickness a28763f
skia: GridView panel is now a WrapPanel 11c8636
skiawpf: mouse wheel was too fast f08631f
TextBox: [iOS] Fix memory leak cf7b2f0
theme: Ensure resources backed by StaticResource aliases update correctly 0d61ca9
theme: Update theme properties set by implicit styles correctly f42835f
tooltip: Fix tooltip popup panel created too early 3473a4d
Correctly initialize value of GeoCoordinate.Point on Android debca91
Fix bug where ResourceDictionary with only ThemeDictionaries would not be generated 6bb8694
ColorPicker: Add partial modifier to ColorChangedEventArgs 3dfc1ae
Materialize certain ResourceDictionary entries eagerly 44e1758
ColorPicker: Corrections in System.Threading 9563227
ColorPicker: Fully qualify ToolTip for macOS c208c90
Selector: fixed IsSelected not working on Selector and ListViewBase items ef26819
sourcegen: Correctly evaluate UseWPF b2ea6a8
xaml: Reduce size of AOT'ed compilations from Xaml b6380f0
[Android] Geolocator should detect permission when app resumes 1a06aca
Apply proper TreeViewItem indentation a437d2f
Bump Wasm Bootstrap for uno-app default afea3db
Disable parallel query on WASM 20b1786
Disable recent samples caching while in release 3ae3bf8
Executing OnPropertyChanged, Style incompatibilities, vector behavior alignment 5a44136
Fix rebase issue b617eab
Fixed samples app compilation due to generators 69189ba
Fully qualify Window reference for iOS 4ab7915
Loading event might not be invoked if alement added in visual tree while invoking the Loaded of its parent cb4f6fc
Make sure the Loading event is not raised twice bb58a81
Make sure to invoke OnApplyTemplate if setting the template after control has been loaded 89dcd85
Perform app initialization only for ApplicationActivity d282a4f
displaymemberbar: Removed DisplayMemberTemplateSelector, replace with a real solution similar to what UWP/WinUI is doing 7e2ab4e
ListView: Update SelectedIndex on selection via container 704399b
page: Page is the only UserControl which draw its own Background 964c2a2
scrollBar: Make sure to unsubscribe from events on Unload + restore managed scroll bars in default ScrollViewer template for wasm ae4ddfe
scrollViewer: Fix memory leak when SV used with managed ScrollBar b8ca32c
wasm_insert: [Wasm] Ensure DOM & Managed visual tree are synchronized after using Children.Insert() on a Panel. 89b4354
Geolocator methods invoked on Dispatcher when necessary e67e139
HighContrast and Light reveal brushes now match UWP 56ee223
Properly implemented TreeView events and ItemsSourceView ecb8b09
Schedule InitializeIfPermissionIsGranted on the dispatcher 7f29597
Support Add() in ArrayList when Capacity is not set before daad101
skia: Add default implementation for AnalyticsInfo a21ed13
unix: Adjust ApplicationData.Local path to use proper locations under unix c53e429
return empty collection when expenting a IEnumerable d97dc73
Updated a lot of typos 74ca2b2
textbox: A binding on the TextBox.Text property were always treated as a TwoWay binding. d2b0b80
textbox: On WASM, the CornerRadius is not applied on the TextBox's background <Border>. 2e08a70
vsix: Properly support solution unload and timeout on nuget failure 9f79917
build removing unnecessary async a60e333
Check for ValuePatternIdentifiers existence before usage 745a898
Fix incorrect implemented list for CoreWindow.PointerCursor 563f6ff
clipping: Fix GH652 - Problem with clipping on both Wasm & Skia 703242b
clipping: Fixed dynamic .Clip Rect were broken in recent clipping changes. 540423d
DatePickerFlyout: [iOS] DatePickerFlyout.Date is not populated properly 1c271b5
dotnetnew: Add default root namespace for cross-runtime libraries 55d9d79
dotnetnew: Fix WPF Skia Host package version replacements f597223
dotnetnew: Remove temprary workaround in Skia template 738c5de
dotnetnew: Tentative adjustments for VS 2019 integration fe212bf
macOS: casting issue 467002f
macOS: templated control not attaching events 1a2a157
net5: Fix the generation of .deps.json file 532aae9
rect: implicit casting of string to Rect were not protected against null-ref exceptions ca7cc49
skiawpf: Improve the wheel smoothness a66ee03
slnf: Fix missing project in solution filters 8a7edd0
theme: Update animation-filled values when theme changes 232d8c7
timepicker: Fix timepicker flyout NRE when unloading 106ab50
wasm: Some CSS values were not using culture independant serialization. 29dcc78
xaml: Make ResourceDictionary.Source lookups case-insensitive ab0c986
[Android] Broadcast status after requesting access 441925d
[Android] Permit geolocator subscription before permission 82c1427
Disable currently unsupported code 1db40b1
Do not ask permission in Geolocator.ctor 93db8f6
Listen to hinge angle sensor properly b91d655
Update cross-target library uap version to 17763 160fdb7
Update src/Uno.UI/UI/Xaml/Controls/WebView/WebView.Android.cs d4b853c
Use MathEx.Clamp() to support .net standard 2.0 dda9adc
Use Task.Run() instead of ThreadPool.RunAsync() edb5e68
skia: Assets may not be copied properly to the output or publish folder e37c0e8
Fully qualify Window for iOS/macOS 308ef6c
Remove changes to Uno.UI project file 96a3217
Remove Math.Clamp() to support .net standard 2.0 40bc0c1
wasm: lineheight is applied to textblock 3491612
wasm: splash screen now respects aspect ratio d1d5448
Allow setting title before window becomes key 74e3880
Pivot ItemsSource binding f5921bd
Pivot SelectionChanged event 59cf2a8
Use template SourceName instead of old template parameters 8f41371
validate for null 4b7a9d0
NSUImageExtensions: fixed image monochrome recoloring on ios cd16da2
shared: update solution template to include checkbox fixes cd7c013
ToggleMenuFlyoutItem: added DefaultStyleKey so that the correct style is used 4994148
[Wasm] Don't use Assemly.Load in ApiInformation 67a554e
Exclude ResourceDictionary to improve linkability of XamlControlsResources 597ca36
Reduce the use of Assembly.Load during startup 39f4ffb
textBox: Fixed Dark mode for fluent textbox 58eef71
transforms: [MacOS] Fix support of RanderTransformOrigin 36a5eaa
UnoLibrary template creates a valid project 45c2f5b
update to AndroidX to match the standard Uno Template fe2ec48
Use Uno specific chevron symbol for collapse/expand in TreeView a60a0af
wasmxf: Wasm XF template didn't build c30d4bc
xbind: [iOS/macOS] Fix memory leak when using x:Bind b93e205

Performance Improvements

Add new ArrayList to avoid extra copy creating bitmaps f97af39
Reduce generated code size for BindableMetadata and DependencyProperty 9296796

BREAKING CHANGES

shared: the symbol font (winjs-symbols) has changed and the new one (uno-fluentui-asset) should be used.