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This is a prerelease version of Xamarin.Forms.

Xamarin.Forms

2.3.3.163-pre3

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 2.3.3.163-pre3 -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-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 2.3.5.256-pre6 5,636 Thursday, June 29, 2017
Xamarin.Forms 2.3.5.255-pre5 1,211 Monday, June 26, 2017
Xamarin.Forms 2.3.5.239-pre3 13,302 Thursday, May 11, 2017
Xamarin.Forms 2.3.5.235-pre2 5,771 Wednesday, April 26, 2017
Xamarin.Forms 2.3.5.233-pre1 3,779 Thursday, April 13, 2017
Xamarin.Forms 2.3.4.231 106,266 Wednesday, April 12, 2017
Xamarin.Forms 2.3.4.224 120,679 Wednesday, March 29, 2017
Xamarin.Forms 2.3.4.221-pre6 3,997 Monday, March 27, 2017
Xamarin.Forms 2.3.4.214-pre5 6,633 Tuesday, March 14, 2017
Xamarin.Forms 2.3.4.212-pre4 2,803 Friday, March 10, 2017
Xamarin.Forms 2.3.4.211-pre3 940 Thursday, March 9, 2017
Xamarin.Forms 2.3.4.192-pre2 13,312 Friday, February 3, 2017
Xamarin.Forms 2.3.4.184-pre1 6,720 Friday, January 13, 2017
Xamarin.Forms 2.3.3.193 141,770 Wednesday, February 1, 2017
Xamarin.Forms 2.3.3.180 148,112 Thursday, January 5, 2017
Xamarin.Forms 2.3.3.175 97,689 Tuesday, December 6, 2016
Xamarin.Forms 2.3.3.168 52,350 Wednesday, November 23, 2016
Xamarin.Forms 2.3.3.166-pre4 5,583 Thursday, November 3, 2016
Xamarin.Forms 2.3.3.163-pre3 (this version) 5,101 Monday, October 17, 2016
Xamarin.Forms 2.3.3.152-pre2 11,285 Thursday, September 15, 2016
Xamarin.Forms 2.3.2.127 196,659 Wednesday, September 14, 2016
Xamarin.Forms 2.3.2.118-pre1 5,735 Wednesday, August 3, 2016
Xamarin.Forms 2.3.1.114 127,659 Wednesday, August 3, 2016
Xamarin.Forms 2.3.1.113-pre3 2,602 Tuesday, July 19, 2016
Xamarin.Forms 2.3.1.111-pre2 3,789 Monday, July 4, 2016
Xamarin.Forms 2.3.1.110-pre1 1,436 Wednesday, June 29, 2016
Xamarin.Forms 2.3.0.107 151,279 Wednesday, June 29, 2016
Xamarin.Forms 2.3.0.49 57,314 Thursday, June 16, 2016
Xamarin.Forms 2.3.0.46-pre3 10,924 Monday, May 30, 2016
Xamarin.Forms 2.3.0.38-pre2 10,575 Wednesday, April 27, 2016
Xamarin.Forms 2.3.0.34-pre1 6,744 Wednesday, April 27, 2016
Xamarin.Forms 2.2.0.45 85,187 Monday, May 30, 2016
Xamarin.Forms 2.2.0.31 107,990 Wednesday, April 27, 2016
Xamarin.Forms 2.2.0.23-pre4 2,134 Wednesday, April 20, 2016
Xamarin.Forms 2.2.0.18-pre3 1,253 Wednesday, April 20, 2016
Xamarin.Forms 2.2.0.5-pre2 14,955 Friday, April 8, 2016
Xamarin.Forms 2.2.0.4-pre1 17,480 Tuesday, April 5, 2016
Xamarin.Forms 2.1.0.6529 81,209 Sunday, March 13, 2016
Xamarin.Forms 2.1.0.6526 14,667 Wednesday, March 9, 2016
Xamarin.Forms 2.1.0.6524 24,013 Wednesday, March 2, 2016
Xamarin.Forms 2.1.0.6521 7,910 Tuesday, March 1, 2016
Xamarin.Forms 2.1.0.6517-pre5 1,090 Thursday, February 18, 2016
Xamarin.Forms 2.1.0.6513-pre4 1,034 Tuesday, February 9, 2016
Xamarin.Forms 2.1.0.6508-pre3 1,325 Thursday, January 28, 2016
Xamarin.Forms 2.1.0.6503-pre2 5,880 Friday, January 22, 2016
Xamarin.Forms 2.1.0.6501-pre1 486 Thursday, January 21, 2016
Xamarin.Forms 2.1.0.6500-pre1 326 Wednesday, January 20, 2016
Xamarin.Forms 2.0.1.6505 78,804 Thursday, January 28, 2016
Xamarin.Forms 2.0.1.6495 63,090 Wednesday, January 20, 2016
Xamarin.Forms 2.0.1.6492-pre1 2,798 Thursday, December 3, 2015
Xamarin.Forms 2.0.0.6490 78,336 Tuesday, December 1, 2015
Xamarin.Forms 2.0.0.6484 15,877 Saturday, November 21, 2015
Xamarin.Forms 2.0.0.6482 193,782 Tuesday, November 17, 2015
Xamarin.Forms 1.5.2.6478-pre3 296 Tuesday, November 17, 2015
Xamarin.Forms 1.5.2.6477-pre2 2,424 Tuesday, November 10, 2015
Xamarin.Forms 1.5.2.6469-pre1 1,058 Tuesday, October 20, 2015
Xamarin.Forms 1.5.1.6471 65,562 Tuesday, October 20, 2015
Xamarin.Forms 1.5.1.6468 2,626 Tuesday, October 20, 2015
Xamarin.Forms 1.5.1.6460-pre2 544 Tuesday, October 13, 2015
Xamarin.Forms 1.5.1.6455-pre1 1,511 Friday, October 2, 2015
Xamarin.Forms 1.5.0.6447 38,890 Friday, September 25, 2015
Xamarin.Forms 1.5.0.6446 17,832 Wednesday, September 16, 2015
Xamarin.Forms 1.5.0.6404-pre3 2,148 Tuesday, August 25, 2015
Xamarin.Forms 1.5.0.6401-pre2 381 Friday, August 21, 2015
Xamarin.Forms 1.5.0.6396-pre1 956 Wednesday, August 5, 2015
Xamarin.Forms 1.4.4.6449 1,372 Friday, September 25, 2015
Xamarin.Forms 1.4.4.6443 567 Wednesday, September 16, 2015
Xamarin.Forms 1.4.4.6392 48,590 Wednesday, July 29, 2015
Xamarin.Forms 1.4.4.6391 1,007 Tuesday, July 28, 2015
Xamarin.Forms 1.4.4.6387 1,923 Monday, July 27, 2015
Xamarin.Forms 1.4.4.6379-pre3 552 Monday, July 20, 2015
Xamarin.Forms 1.4.4.6378-pre2 392 Thursday, July 16, 2015
Xamarin.Forms 1.4.4.6377-pre1 353 Tuesday, July 14, 2015
Xamarin.Forms 1.4.3.6376 28,376 Thursday, July 9, 2015
Xamarin.Forms 1.4.3.6374 13,419 Wednesday, July 1, 2015
Xamarin.Forms 1.4.3.6372 1,054 Tuesday, June 30, 2015
Xamarin.Forms 1.4.3.6364-pre3 1,269 Tuesday, June 16, 2015
Xamarin.Forms 1.4.3.6358-pre2 4,338 Friday, April 24, 2015
Xamarin.Forms 1.4.3.6356-pre1 435 Tuesday, April 21, 2015
Xamarin.Forms 1.4.2.6359 45,213 Thursday, April 30, 2015
Xamarin.Forms 1.4.2.6355 10,976 Tuesday, April 21, 2015
Xamarin.Forms 1.4.2.6353-pre2 1,441 Tuesday, March 31, 2015
Xamarin.Forms 1.4.2.6350-pre1 485 Monday, March 30, 2015
Xamarin.Forms 1.4.1.6349 30,727 Monday, March 30, 2015
Xamarin.Forms 1.4.1.6347-pre2 2,252 Thursday, March 19, 2015
Xamarin.Forms 1.4.1.6342-pre1 716 Tuesday, March 10, 2015
Xamarin.Forms 1.4.0.6341 24,986 Monday, March 9, 2015
Xamarin.Forms 1.4.0.6340-pre2 1,099 Friday, March 6, 2015
Xamarin.Forms 1.4.0.6336-pre1 599 Tuesday, March 3, 2015
Xamarin.Forms 1.3.5.6337 3,959 Thursday, March 5, 2015
Xamarin.Forms 1.3.5.6335 15,825 Monday, March 2, 2015
Xamarin.Forms 1.3.5.6333-pre1 969 Tuesday, February 17, 2015
Xamarin.Forms 1.3.4.6332 14,306 Tuesday, February 17, 2015
Xamarin.Forms 1.3.4.6331-pre4 534 Friday, February 13, 2015
Xamarin.Forms 1.3.4.6329-pre3 322 Thursday, February 12, 2015
Xamarin.Forms 1.3.4.6328-pre2 359 Wednesday, February 11, 2015
Xamarin.Forms 1.3.4.6325-pre1 332 Monday, February 9, 2015
Xamarin.Forms 1.3.3.6323 40,007 Monday, February 9, 2015
Xamarin.Forms 1.3.3.6322-pre3 292 Friday, February 6, 2015
Xamarin.Forms 1.3.3.6321-pre2 451 Wednesday, February 4, 2015
Xamarin.Forms 1.3.3.6318-pre1 414 Monday, February 2, 2015
Xamarin.Forms 1.3.2.6316 5,956 Tuesday, February 3, 2015
Xamarin.Forms 1.3.2.6313-pre3 390 Friday, January 30, 2015
Xamarin.Forms 1.3.2.6309-pre2 444 Wednesday, January 28, 2015
Xamarin.Forms 1.3.2.6299-pre1 1,145 Tuesday, January 20, 2015
Xamarin.Forms 1.3.1.6296 41,799 Sunday, January 4, 2015
Xamarin.Forms 1.3.1.6294-pre1 3,123 Wednesday, December 24, 2014
Xamarin.Forms 1.3.0.6292 7,887 Wednesday, December 24, 2014
Xamarin.Forms 1.3.0.6286-pre4 1,180 Friday, December 19, 2014
Xamarin.Forms 1.3.0.6284-pre3 721 Friday, December 12, 2014
Xamarin.Forms 1.3.0.6280-pre2 633 Tuesday, December 9, 2014
Xamarin.Forms 1.3.0.6275-pre1 6,846 Wednesday, November 12, 2014
Xamarin.Forms 1.2.3.6257 32,940 Thursday, October 2, 2014
Xamarin.Forms 1.2.3.6256-pre4 1,308 Friday, September 26, 2014
Xamarin.Forms 1.2.3.6255-pre3 1,626 Saturday, September 20, 2014
Xamarin.Forms 1.2.3.6249-pre2 918 Tuesday, September 9, 2014
Xamarin.Forms 1.2.3.6246-pre1 3,142 Friday, August 15, 2014
Xamarin.Forms 1.2.2.6243 23,813 Wednesday, July 30, 2014
Xamarin.Forms 1.2.2.6241-pre3 1,766 Monday, July 28, 2014
Xamarin.Forms 1.2.2.6240-pre2 3,478 Tuesday, July 22, 2014
Xamarin.Forms 1.2.2.6238-pre1 2,530 Thursday, July 17, 2014
Xamarin.Forms 1.2.1.6229 6,647 Monday, July 14, 2014
Xamarin.Forms 1.1.1.6206 13,054 Thursday, June 19, 2014
Xamarin.Forms 1.1.0.6201 10,524 Thursday, June 12, 2014
Xamarin.Forms 1.0.6197 2,915 Wednesday, June 4, 2014
Xamarin.Forms 1.0.6188 9,785 Wednesday, May 28, 2014