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This is a prerelease version of Xamarin.Forms.

Xamarin.Forms

2.3.3.166-pre4

Build native UIs for iOS, Android, and Windows Phone from a single, shared C# codebase

To install Xamarin.Forms, run the following command in the Package Manager Console

Install-Package Xamarin.Forms -Version 2.3.3.166-pre4 -Pre

Release Notes

### Important notes

* Xamarin.Forms 2.3.3 depends on a Xamarin installation of Cycle 8. Users upgrading from Xamarin.Forms 2.3.2 (or earlier) will experience numerous compile errors if they attempt to build without first upgrading their Xamarin installation.
* When upgrading Xamarin.Forms take care not to simply "update all" as that will update the Xamarin.Android.Support packages to an incompatible version. More info [here](https://developer.xamarin.com/guides/xamarin-forms/troubleshooting/).
* In 2.3.3 we are deprecating Classic support (More info [here](https://developer.xamarin.com/guides/cross-platform/macios/unified/)).

# 2.3.3 pre4

## Bug Fixes
* [44338](https://bugzilla.xamarin.com/show_bug.cgi?id=44338) - "Displaying context action causes ArgumentNullException when another item's context actions are already displayed on iOS10." ([PR](https://github.com/xamarin/Xamarin.Forms/pull/442))
* "[Win] Toolbar placement works with initial value" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/488))
* "[Android] SoftInputMode works with initial value" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/465))

# 2.3.3-pre3

## Bug Fixes
* [44129](https://bugzilla.xamarin.com/show_bug.cgi?id=44129) - "[Forms Android] Removing and adding items to TabbedPage BindingContext crashes the app when VM uses MvvmLight property Set()-method" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/453))
* [44166](https://bugzilla.xamarin.com/show_bug.cgi?id=44166) - "41166 - Fix MasterDetailPage/NavigationPage leaks on iPad" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/426))
* [44596](https://bugzilla.xamarin.com/show_bug.cgi?id=44596) - "Grey/Blank Screen when switching MainPage to MasterDetail with TabbedPage" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/421))
* [45010](https://bugzilla.xamarin.com/show_bug.cgi?id=45010) - "[2.3.3] 45010 – Forms Sample "WorkingWithListview" throw exception with WinPhone8.1" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/416))
* [44166](https://bugzilla.xamarin.com/show_bug.cgi?id=44166) - "MasterDetailPage instances do not get disposed upon GC; instance accumulation crashes app with OOM error using Forms 2.3.2.118-pre1 and AppCompat" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/412))
* Don't unsubscribe/resubscribe the listener to the same INPC ([PR](https://github.com/xamarin/Xamarin.Forms/pull/384))
* [44886](https://bugzilla.xamarin.com/show_bug.cgi?id=44886) - "UWP Listview ItemSelected event triggered twice for each selection" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/402))
* [iOS] Fixes KVO native binding ([PR](https://github.com/xamarin/Xamarin.Forms/pull/403))
* Make CreateNativeControl virtual instead of abstract ([PR](https://github.com/xamarin/Xamarin.Forms/pull/406))
* [43993](https://bugzilla.xamarin.com/show_bug.cgi?id=43993) - "iOS: ListView size does not return to normal after keyboard disappears" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/333
))
* [39768](https://bugzilla.xamarin.com/show_bug.cgi?id=39768) - "PanGestureRecognizer sometimes won't fire completed event when dragging very slowly" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/389))
* [42602](https://bugzilla.xamarin.com/show_bug.cgi?id=42602) - "Custom BoxView Renderer Does Not Render All Its Children Elements" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/322))
* [Xaml] Xaml native views and bindings for WP8.1 ([PR](https://github.com/xamarin/Xamarin.Forms/pull/363))
* [XamlC] Compiled converters ([PR](https://github.com/xamarin/Xamarin.Forms/pull/358))
* [Xaml] allow compatible arguments for x:Factory ([PR](https://github.com/xamarin/Xamarin.Forms/pull/382))
* [XAMLC] specify type and default value for native bindings ([PR](https://github.com/xamarin/Xamarin.Forms/pull/376))
* [2.3.3-pre2] [XamlC] supports enum and consts in x:Static ([PR](https://github.com/xamarin/Xamarin.Forms/pull/369))
* Reuse Handler when invoking on main thread ([PR](https://github.com/xamarin/Xamarin.Forms/pull/383))

# 2.3.3-pre2

Nuget package [here]().

## New Features

#### Support native view declaration in Xaml, and native Bindings

The following Xaml is valid, and works as expected:

```
<?xml version="1.0" encoding="UTF-8"?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:ios="clr-namespace:UIKit;assembly=Xamarin.iOS;targetPlatform=iOS"
xmlns:androidWidget="clr-namespace:Android.Widget;assembly=Mono.Android;targetPlatform=Android"
xmlns:formsandroid="clr-namespace:Xamarin.Forms;assembly=Xamarin.Forms.Platform.Android;targetPlatform=Android"
xmlns:win="clr-namespace:Windows.UI.Xaml.Controls;assembly=Windows, Version=255.255.255.255, Culture=neutral, PublicKeyToken=null, ContentType=WindowsRuntime;targetPlatform=Windows"
      x:Class="Xamarin.Forms.Controls.XamlNativeViews">
<ContentPage.Content>
<ios:UILabel Text="{Binding NativeText}" View.HorizontalOptions="Start"/>
<androidWidget:TextView Text="{Binding NativeText}" x:Arguments="{x:Static formsandroid:Forms.Context}" />
<win:TextBlock Text="Foo"/>
</ContentPage.Content>
</ContentPage>
```

- native views are automagically wrapped into the appropriate wrapper
- xmlns  defined on a non-matching targetPlatform (see TargetPlatform enumeration) are ignored
- you can bind to property of native views. A proxy is created on the fly for supporting 2-Way bindings if possible. If the native property doesn't implements INPC, or support Observable (on iOS), or is a DependencyProperty (on UWP), you can pass an `UpdateSourceEventName` parameter to the binding expression.
- if you set, or bind to, attached BindableProperty to a native view that will be wrapped in a X.F.View, those property values and binding are transferred to the wrapper. See HorizontalOptions in the sample above.


#### Platform Specifics
*Introducing Platform Specifics!* Features or behaviors that apply to one platform only can now be implemented without requiring custom renderers. These new features/behaviors can then be accessed easily via a fluent code API or XAML.

Vendors can easily add their own Platform Specifics by attaching Effects to them (see [63a924d](https://github.com/xamarin/Xamarin.Forms/commit/63a924d) and [1f9482e](https://github.com/xamarin/Xamarin.Forms/commit/1f9482e4b5969f19fcde5c691443fcccc848c54e) for complete example).

This feature implements the framework that enables the new API and also includes several examples of platform specific features, which can be previewed using the Platform Specifics gallery page:

* Blur support for any VisualElement on iOS
* Translucent navigation bar on iOS
* Partially collapsed navigation bar (with icons!) on MasterDetailPage on Windows
* Toolbar placement options on Windows
* AdjustResize/AdjustPan on Android (known issue: AdjustResize disables status bar color)

## Bug Fixes
* [32733](https://bugzilla.xamarin.com/show_bug.cgi?id=32733) - "32733 – Switching Activity crash in 1.4.4.6392" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/286))
* [35132](https://bugzilla.xamarin.com/show_bug.cgi?id=35132) - "35132 – Pages are not collected when using a Navigationpage"
* [39768](https://bugzilla.xamarin.com/show_bug.cgi?id=39768) - "PanGestureRecognizer sometimes won't fire completed event when dragging very slowly" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/313))
* [39908](https://bugzilla.xamarin.com/show_bug.cgi?id=39908) - "Back button hit quickly results in jumbled pages" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/291))
* [41463](https://bugzilla.xamarin.com/show_bug.cgi?id=41463) - "CarouselView Crashes with "Sequence Does not Contain a Matching Element""
* [42061](https://bugzilla.xamarin.com/show_bug.cgi?id=42061) - "App crashes when registering an app link entry with invalid thumbnail url" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/299))
* [42112](https://bugzilla.xamarin.com/show_bug.cgi?id=42112) - "42112 - CarouselView throws error on Android while moving"
* [42341](https://bugzilla.xamarin.com/show_bug.cgi?id=42341) - "Page not removed from NavigationStack when hit Back quickly on iOS" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/291))
* [42519](https://bugzilla.xamarin.com/show_bug.cgi?id=42519) - "Text Truncation in UWP"
* [42697](https://bugzilla.xamarin.com/show_bug.cgi?id=42697) - "Slow swipe - System.InvalidOperationException: Sequence contains more than one element [CarouselView]"
* [43230](https://bugzilla.xamarin.com/show_bug.cgi?id=43230) - "DisplayAlert returns unexpected value when Escape key hit on UWP" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/292))
* [43328](https://bugzilla.xamarin.com/show_bug.cgi?id=43328) - "DisplayActionSheet() double-tap NullReferenceException crash Win8.1" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/305))
* [43354](https://bugzilla.xamarin.com/show_bug.cgi?id=43354) - "Button IsEnabled binding is position dependent" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/308))
* [43450](https://bugzilla.xamarin.com/show_bug.cgi?id=43450) - "Faulty syntax of Grid.RowDefinition wasn't caught with XamlC"
* [43516](https://bugzilla.xamarin.com/show_bug.cgi?id=43516) - "[UWP] Changing FontAttribute on a label to NONE changes font size as well" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/325))
* [43530](https://bugzilla.xamarin.com/show_bug.cgi?id=43530) - "[Android] Resuming app throws IllegalStateException from fragment manager"
* [43726](https://bugzilla.xamarin.com/show_bug.cgi?id=43726) - "Setting TabbedPage.ItemsSource to Null Causes Crash" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/320))
* [43774](https://bugzilla.xamarin.com/show_bug.cgi?id=43774) - "Appearing does not trigger for the first time for Tabpages in Android" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/328))
* [43892](https://bugzilla.xamarin.com/show_bug.cgi?id=43892) - "Xamarin.Forms.TabbedPage with FormsAppCompatActivity OnAppearing Troubles"
* [44056](https://bugzilla.xamarin.com/show_bug.cgi?id=44056) - "Picker Focused/Unfocused events not fired on iOS 10 preview" ([PR](https://github.com/xamarin/Xamarin.Forms/pull/339))

## Other fixes
* iOS10 fixes

# 2.3.3-pre1

(Only internal. No public artifacts)

Owners

Authors

Xamarin Inc.

Copyright

Copyright 2013-2016

Tags

Dependencies

Version History

Version Downloads Last updated
Xamarin.Forms 2.3.5.235-pre2 389 Wednesday, April 26, 2017
Xamarin.Forms 2.3.5.233-pre1 2,188 Thursday, April 13, 2017
Xamarin.Forms 2.3.4.224 37,633 Wednesday, March 29, 2017
Xamarin.Forms 2.3.4.221-pre6 3,184 Monday, March 27, 2017
Xamarin.Forms 2.3.4.214-pre5 5,050 Tuesday, March 14, 2017
Xamarin.Forms 2.3.4.212-pre4 2,384 Friday, March 10, 2017
Xamarin.Forms 2.3.4.211-pre3 818 Thursday, March 9, 2017
Xamarin.Forms 2.3.4.192-pre2 11,519 Friday, February 3, 2017
Xamarin.Forms 2.3.4.184-pre1 5,524 Friday, January 13, 2017
Xamarin.Forms 2.3.3.193 105,445 Wednesday, February 1, 2017
Xamarin.Forms 2.3.3.180 127,308 Thursday, January 5, 2017
Xamarin.Forms 2.3.3.175 85,520 Tuesday, December 6, 2016
Xamarin.Forms 2.3.3.168 47,902 Wednesday, November 23, 2016
Xamarin.Forms 2.3.3.166-pre4 (this version) 5,243 Thursday, November 3, 2016
Xamarin.Forms 2.3.3.163-pre3 4,742 Monday, October 17, 2016
Xamarin.Forms 2.3.3.152-pre2 10,213 Thursday, September 15, 2016
Xamarin.Forms 2.3.2.127 177,112 Wednesday, September 14, 2016
Xamarin.Forms 2.3.2.118-pre1 5,602 Wednesday, August 3, 2016
Xamarin.Forms 2.3.1.114 119,818 Wednesday, August 3, 2016
Xamarin.Forms 2.3.1.113-pre3 2,442 Tuesday, July 19, 2016
Xamarin.Forms 2.3.1.111-pre2 3,716 Monday, July 4, 2016
Xamarin.Forms 2.3.1.110-pre1 1,366 Wednesday, June 29, 2016
Xamarin.Forms 2.3.0.107 111,435 Wednesday, June 29, 2016
Xamarin.Forms 2.3.0.49 51,427 Thursday, June 16, 2016
Xamarin.Forms 2.3.0.46-pre3 9,594 Monday, May 30, 2016
Xamarin.Forms 2.3.0.38-pre2 10,245 Wednesday, April 27, 2016
Xamarin.Forms 2.3.0.34-pre1 6,501 Wednesday, April 27, 2016
Xamarin.Forms 2.2.0.45 75,864 Monday, May 30, 2016
Xamarin.Forms 2.2.0.31 100,806 Wednesday, April 27, 2016
Xamarin.Forms 2.2.0.23-pre4 2,030 Wednesday, April 20, 2016
Xamarin.Forms 2.2.0.18-pre3 1,180 Wednesday, April 20, 2016
Xamarin.Forms 2.2.0.5-pre2 14,856 Friday, April 8, 2016
Xamarin.Forms 2.2.0.4-pre1 17,359 Tuesday, April 5, 2016
Xamarin.Forms 2.1.0.6529 76,838 Sunday, March 13, 2016
Xamarin.Forms 2.1.0.6526 14,131 Wednesday, March 9, 2016
Xamarin.Forms 2.1.0.6524 23,457 Wednesday, March 2, 2016
Xamarin.Forms 2.1.0.6521 7,024 Tuesday, March 1, 2016
Xamarin.Forms 2.1.0.6517-pre5 1,053 Thursday, February 18, 2016
Xamarin.Forms 2.1.0.6513-pre4 999 Tuesday, February 9, 2016
Xamarin.Forms 2.1.0.6508-pre3 1,283 Thursday, January 28, 2016
Xamarin.Forms 2.1.0.6503-pre2 5,819 Friday, January 22, 2016
Xamarin.Forms 2.1.0.6501-pre1 455 Thursday, January 21, 2016
Xamarin.Forms 2.1.0.6500-pre1 299 Wednesday, January 20, 2016
Xamarin.Forms 2.0.1.6505 75,030 Thursday, January 28, 2016
Xamarin.Forms 2.0.1.6495 56,497 Wednesday, January 20, 2016
Xamarin.Forms 2.0.1.6492-pre1 2,708 Thursday, December 3, 2015
Xamarin.Forms 2.0.0.6490 72,647 Tuesday, December 1, 2015
Xamarin.Forms 2.0.0.6484 15,544 Saturday, November 21, 2015
Xamarin.Forms 2.0.0.6482 181,327 Tuesday, November 17, 2015
Xamarin.Forms 1.5.2.6478-pre3 267 Tuesday, November 17, 2015
Xamarin.Forms 1.5.2.6477-pre2 2,273 Tuesday, November 10, 2015
Xamarin.Forms 1.5.2.6469-pre1 1,009 Tuesday, October 20, 2015
Xamarin.Forms 1.5.1.6471 63,240 Tuesday, October 20, 2015
Xamarin.Forms 1.5.1.6468 2,563 Tuesday, October 20, 2015
Xamarin.Forms 1.5.1.6460-pre2 515 Tuesday, October 13, 2015
Xamarin.Forms 1.5.1.6455-pre1 1,337 Friday, October 2, 2015
Xamarin.Forms 1.5.0.6447 36,389 Friday, September 25, 2015
Xamarin.Forms 1.5.0.6446 17,040 Wednesday, September 16, 2015
Xamarin.Forms 1.5.0.6404-pre3 2,037 Tuesday, August 25, 2015
Xamarin.Forms 1.5.0.6401-pre2 348 Friday, August 21, 2015
Xamarin.Forms 1.5.0.6396-pre1 901 Wednesday, August 5, 2015
Xamarin.Forms 1.4.4.6449 1,249 Friday, September 25, 2015
Xamarin.Forms 1.4.4.6443 528 Wednesday, September 16, 2015
Xamarin.Forms 1.4.4.6392 43,466 Wednesday, July 29, 2015
Xamarin.Forms 1.4.4.6391 969 Tuesday, July 28, 2015
Xamarin.Forms 1.4.4.6387 1,879 Monday, July 27, 2015
Xamarin.Forms 1.4.4.6379-pre3 517 Monday, July 20, 2015
Xamarin.Forms 1.4.4.6378-pre2 361 Thursday, July 16, 2015
Xamarin.Forms 1.4.4.6377-pre1 315 Tuesday, July 14, 2015
Xamarin.Forms 1.4.3.6376 25,973 Thursday, July 9, 2015
Xamarin.Forms 1.4.3.6374 13,071 Wednesday, July 1, 2015
Xamarin.Forms 1.4.3.6372 1,004 Tuesday, June 30, 2015
Xamarin.Forms 1.4.3.6364-pre3 1,223 Tuesday, June 16, 2015
Xamarin.Forms 1.4.3.6358-pre2 4,123 Friday, April 24, 2015
Xamarin.Forms 1.4.3.6356-pre1 404 Tuesday, April 21, 2015
Xamarin.Forms 1.4.2.6359 42,769 Thursday, April 30, 2015
Xamarin.Forms 1.4.2.6355 10,329 Tuesday, April 21, 2015
Xamarin.Forms 1.4.2.6353-pre2 1,374 Tuesday, March 31, 2015
Xamarin.Forms 1.4.2.6350-pre1 419 Monday, March 30, 2015
Xamarin.Forms 1.4.1.6349 28,413 Monday, March 30, 2015
Xamarin.Forms 1.4.1.6347-pre2 2,204 Thursday, March 19, 2015
Xamarin.Forms 1.4.1.6342-pre1 686 Tuesday, March 10, 2015
Xamarin.Forms 1.4.0.6341 24,042 Monday, March 9, 2015
Xamarin.Forms 1.4.0.6340-pre2 975 Friday, March 6, 2015
Xamarin.Forms 1.4.0.6336-pre1 568 Tuesday, March 3, 2015
Xamarin.Forms 1.3.5.6337 3,880 Thursday, March 5, 2015
Xamarin.Forms 1.3.5.6335 13,810 Monday, March 2, 2015
Xamarin.Forms 1.3.5.6333-pre1 937 Tuesday, February 17, 2015
Xamarin.Forms 1.3.4.6332 13,535 Tuesday, February 17, 2015
Xamarin.Forms 1.3.4.6331-pre4 504 Friday, February 13, 2015
Xamarin.Forms 1.3.4.6329-pre3 292 Thursday, February 12, 2015
Xamarin.Forms 1.3.4.6328-pre2 318 Wednesday, February 11, 2015
Xamarin.Forms 1.3.4.6325-pre1 298 Monday, February 9, 2015
Xamarin.Forms 1.3.3.6323 36,823 Monday, February 9, 2015
Xamarin.Forms 1.3.3.6322-pre3 259 Friday, February 6, 2015
Xamarin.Forms 1.3.3.6321-pre2 416 Wednesday, February 4, 2015
Xamarin.Forms 1.3.3.6318-pre1 380 Monday, February 2, 2015
Xamarin.Forms 1.3.2.6316 5,729 Tuesday, February 3, 2015
Xamarin.Forms 1.3.2.6313-pre3 358 Friday, January 30, 2015
Xamarin.Forms 1.3.2.6309-pre2 409 Wednesday, January 28, 2015
Xamarin.Forms 1.3.2.6299-pre1 1,098 Tuesday, January 20, 2015
Xamarin.Forms 1.3.1.6296 37,303 Sunday, January 4, 2015
Xamarin.Forms 1.3.1.6294-pre1 3,017 Wednesday, December 24, 2014
Xamarin.Forms 1.3.0.6292 7,699 Wednesday, December 24, 2014
Xamarin.Forms 1.3.0.6286-pre4 1,132 Friday, December 19, 2014
Xamarin.Forms 1.3.0.6284-pre3 685 Friday, December 12, 2014
Xamarin.Forms 1.3.0.6280-pre2 599 Tuesday, December 9, 2014
Xamarin.Forms 1.3.0.6275-pre1 6,700 Wednesday, November 12, 2014
Xamarin.Forms 1.2.3.6257 31,737 Thursday, October 2, 2014
Xamarin.Forms 1.2.3.6256-pre4 1,271 Friday, September 26, 2014
Xamarin.Forms 1.2.3.6255-pre3 1,535 Saturday, September 20, 2014
Xamarin.Forms 1.2.3.6249-pre2 881 Tuesday, September 9, 2014
Xamarin.Forms 1.2.3.6246-pre1 3,022 Friday, August 15, 2014
Xamarin.Forms 1.2.2.6243 22,848 Wednesday, July 30, 2014
Xamarin.Forms 1.2.2.6241-pre3 1,707 Monday, July 28, 2014
Xamarin.Forms 1.2.2.6240-pre2 3,301 Tuesday, July 22, 2014
Xamarin.Forms 1.2.2.6238-pre1 2,421 Thursday, July 17, 2014
Xamarin.Forms 1.2.1.6229 6,415 Monday, July 14, 2014
Xamarin.Forms 1.1.1.6206 12,931 Thursday, June 19, 2014
Xamarin.Forms 1.1.0.6201 9,865 Thursday, June 12, 2014
Xamarin.Forms 1.0.6197 2,822 Wednesday, June 4, 2014
Xamarin.Forms 1.0.6188 9,541 Wednesday, May 28, 2014