Xamarin.Forms 2.3.3.163-pre3 The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org. Prefix Reserved

This is a prerelease version of Xamarin.Forms.
There is a newer version of this package available.
See the version list below for details.
Install-Package Xamarin.Forms -Version 2.3.3.163-pre3
dotnet add package Xamarin.Forms --version 2.3.3.163-pre3
<PackageReference Include="Xamarin.Forms" Version="2.3.3.163-pre3" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Xamarin.Forms --version 2.3.3.163-pre3
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Xamarin.Forms, 2.3.3.163-pre3"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Xamarin.Forms as a Cake Addin
#addin nuget:?package=Xamarin.Forms&version=2.3.3.163-pre3&prerelease

// Install Xamarin.Forms as a Cake Tool
#tool nuget:?package=Xamarin.Forms&version=2.3.3.163-pre3&prerelease
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

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

Product Versions
MonoAndroid monoandroid10
Universal Windows Platform uap uap10.0
Windows Phone wp8 wp81 wpa81
Windows Store win81
Xamarin.iOS xamarinios10
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (1.9K)

Showing the top 5 NuGet packages that depend on Xamarin.Forms:

Package Downloads
Rg.Plugins.Popup

Plugin for Xamarin forms. Allows you to open any page as a popup.

Xamarin.FFImageLoading.Forms

Xamarin Library to load images quickly and easily on Xamarin.Forms. Ensure you call CachedImageRenderer.Init() on each platform!!! Features: - Xamarin.iOS, Xamarin.Android, Xamarin.Forms, Xamarin.Mac and Windows (WinRT, UWP) support - Configurable disk and memory caching - Multiple image views using the same image source (url, path, resource) will use only one bitmap which is cached in memory (less memory usage) - Deduplication of similar download/load requests. *(If 100 similar requests arrive at same time then one real loading will be performed while 99 others will wait).* - Error and loading placeholders support - Images can be automatically downsampled to specified size (less memory usage) - Fluent API which is inspired by Picasso naming - SVG / WebP / GIF support - Image loading Fade-In animations support - Can retry image downloads (RetryCount, RetryDelay) - Android bitmap optimization. Saves 50% of memory by trying not to use transparency channel when possible. - Transformations support - BlurredTransformation - CircleTransformation, RoundedTransformation, CornersTransformation, CropTransformation - ColorSpaceTransformation, GrayscaleTransformation, SepiaTransformation, TintTransformation - FlipTransformation, RotateTransformation - Supports custom transformations (native platform `ITransformation` implementations)

Xamarin.Forms.Maps The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Maps models and renderers for Xamarin.Forms

Prism.Forms The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

Prism is a fully open source version of the Prism guidance originally produced by Microsoft Patterns & Practices. Prism provides an implementation of a collection of design patterns that are helpful in writing well structured, maintainable, and testable XAML applications, including MVVM, dependency injection, commanding, event aggregation, and more. Prism's core functionality is a shared library targeting the .NET Framework and .NET Standard. Features that need to be platform specific are implemented in the respective libraries for the target platform (WPF, Uno Platform, and Xamarin Forms). Prism for Xamarin.Forms helps you more easily design and build rich, flexible, and easy to maintain Xamarin.Forms applications. This library provides user interface composition as well as modularity support.

SkiaSharp.Views.Forms The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

SkiaSharp for Xamarin.Forms is a set of views that can be used to draw on the screen.

GitHub repositories (322)

Showing the top 5 popular GitHub repositories that depend on Xamarin.Forms:

Repository Stars
dotnet/maui
.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
BeyondDimension/SteamTools
🛠「Watt Toolkit」是一个开源跨平台的多功能 Steam 工具箱。
dotnet/BenchmarkDotNet
Powerful .NET library for benchmarking
microsoft/ailab
Experience, Learn and Code the latest breakthrough innovations with Microsoft AI
reactiveui/ReactiveUI
An advanced, composable, functional reactive model-view-viewmodel framework for all .NET platforms that is inspired by functional reactive programming. ReactiveUI allows you to abstract mutable state away from your user interfaces, express the idea around a feature in one readable place and improve the testability of your application.
Version Downloads Last updated
5.0.0.2478 46,949 6/9/2022
5.0.0.2401 218,539 3/29/2022
5.0.0.2337 348,013 1/25/2022
5.0.0.2291 243,646 12/14/2021
5.0.0.2244 574,606 11/15/2021
5.0.0.2196 353,346 10/18/2021
5.0.0.2125 221,083 9/20/2021
5.0.0.2083 414,032 7/12/2021
5.0.0.2012 2,645,252 2/12/2021
5.0.0.1931 184,564 1/25/2021
5.0.0.1905 56,843 1/20/2021
5.0.0.1874 282,693 1/5/2021
5.0.0.1829-pre6 6,705 12/22/2020
5.0.0.1791-pre5 9,453 12/8/2020
5.0.0.1709-pre4 12,415 11/16/2020
5.0.0.1558-pre3 28,905 10/15/2020
5.0.0.1539-pre2 2,699 10/7/2020
5.0.0.1487-pre1 6,589 9/23/2020
4.8.0.1821 466,137 12/18/2020
4.8.0.1687 449,760 11/12/2020
4.8.0.1560 434,973 10/15/2020
4.8.0.1534 117,479 10/7/2020
4.8.0.1451 435,444 9/16/2020
4.8.0.1364 272,545 8/31/2020
4.8.0.1269 396,943 8/6/2020
4.8.0.1238-pre3 3,394 7/30/2020
4.8.0.1187-pre2 5,431 7/23/2020
4.8.0.1143-pre1 2,938 7/15/2020
4.7.0.1351 251,598 8/27/2020
4.7.0.1260 85,424 8/5/2020
4.7.0.1239 86,602 7/30/2020
4.7.0.1179 120,999 7/22/2020
4.7.0.1142 108,528 7/15/2020
4.7.0.1080 161,440 7/1/2020
4.7.0.968 1,414,349 6/17/2020
4.7.0.937-pre4 11,231 6/11/2020
4.7.0.848-pre3 6,857 6/4/2020
4.7.0.813-pre2 7,391 5/19/2020
4.7.0.773-pre1 5,988 5/14/2020
4.6.0.1180 38,636 7/22/2020
4.6.0.1141 87,476 7/14/2020
4.6.0.1073 11,184 7/1/2020
4.6.0.967 54,324 6/17/2020
4.6.0.847 217,187 6/4/2020
4.6.0.800 300,420 5/19/2020
4.6.0.726 320,944 4/29/2020
4.6.0.616-pre4 12,869 4/9/2020
4.6.0.529-pre3 4,804 4/2/2020
4.6.0.494-pre2 6,307 3/25/2020
4.6.0.379-pre1 10,738 3/5/2020
4.5.0.725 91,570 4/29/2020
4.5.0.657 230,814 4/23/2020
4.5.0.617 613,974 4/9/2020
4.5.0.530 144,962 4/1/2020
4.5.0.495 174,000 3/25/2020
4.5.0.396 135,446 3/16/2020
4.5.0.356 408,892 2/26/2020
4.5.0.282-pre4 10,433 2/10/2020
4.5.0.266-pre3 3,486 2/5/2020
4.5.0.187-pre2 12,196 1/23/2020
4.5.0.142-pre1 5,052 1/13/2020
4.4.0.991864 66,939 3/23/2020
4.4.0.991757 60,688 2/26/2020
4.4.0.991640 201,084 2/5/2020
4.4.0.991537 139,585 1/23/2020
4.4.0.991477 122,268 1/10/2020
4.4.0.991265 354,988 12/12/2019
4.4.0.991220-pre3 5,015 12/4/2019
4.4.0.991210-pre2 13,141 11/14/2019
4.4.0.936621-pre1 10,386 10/31/2019
4.3.0.991250 74,320 12/12/2019
4.3.0.991221 88,483 12/4/2019
4.3.0.991211 219,300 11/14/2019
4.3.0.947036 193,541 10/29/2019
4.3.0.908675 319,513 10/21/2019
4.3.0.851321-pre3 15,416 10/2/2019
4.3.0.819712-pre2 15,781 9/19/2019
4.3.0.778476-pre1 19,959 9/11/2019
4.2.0.910310 81,020 10/21/2019
4.2.0.848062 251,882 10/2/2019
4.2.0.815419 137,676 9/19/2019
4.2.0.778463 94,036 9/11/2019
4.2.0.709249 290,216 8/21/2019
4.2.0.673161-pre3 15,095 8/7/2019
4.2.0.618605-pre2 16,298 7/24/2019
4.2.0.608146-pre1 10,723 7/16/2019
4.1.0.778454 38,327 9/11/2019
4.1.0.709244 45,756 8/21/2019
4.1.0.673156 152,644 8/7/2019
4.1.0.618606 158,785 7/24/2019
4.1.0.581479 200,023 7/9/2019
4.1.0.555618 425,774 6/28/2019
4.1.0.496342-pre2 14,028 6/13/2019
4.1.0.483098-pre1 11,037 6/5/2019
4.0.0.709238 28,809 8/21/2019
4.0.0.618610 9,503 7/24/2019
4.0.0.540366 83,977 6/27/2019
4.0.0.497661 100,147 6/13/2019
4.0.0.482894 83,883 6/3/2019
4.0.0.425677 342,032 5/14/2019
4.0.0.394984-pre10 14,876 5/3/2019
4.0.0.346134-pre9 25,479 4/18/2019
4.0.0.304370-pre8 19,591 4/3/2019
4.0.0.250467-pre7 13,956 3/20/2019
4.0.0.232914-pre6 13,869 3/14/2019
4.0.0.169046-pre5 11,611 2/21/2019
4.0.0.135214-pre4 9,751 2/6/2019
4.0.0.94569-pre3 9,434 1/24/2019
4.0.0.62955-pre2 23,943 1/10/2019
4.0.0.8055-pre1 20,712 12/4/2018
3.6.0.709228 76,684 8/21/2019
3.6.0.539721 55,716 6/27/2019
3.6.0.344457 1,124,931 4/18/2019
3.6.0.293080 137,614 4/3/2019
3.6.0.264807 236,948 3/19/2019
3.6.0.220655 233,852 3/6/2019
3.6.0.169048-pre2 5,686 2/21/2019
3.6.0.135200-pre1 12,740 2/6/2019
3.5.0.274416 54,161 3/26/2019
3.5.0.169047 2,091,579 2/20/2019
3.5.0.129452 330,751 2/6/2019
3.5.0.94564-pre3 5,663 1/24/2019
3.5.0.62956-pre2 5,841 1/10/2019
3.4.0.1039999 31,802 3/26/2019
3.4.0.1029999 132,527 1/24/2019
3.4.0.1009999 190,534 1/4/2019
3.4.0.1008975 711,097 11/15/2018
3.4.0.987044-pre2 6,594 11/8/2018
3.4.0.925479-pre1 18,767 10/18/2018
3.3.0.967583 243,518 11/1/2018
3.3.0.912540 549,873 10/18/2018
3.3.0.893527-pre3 14,769 10/11/2018
3.3.0.871608-pre2 22,293 10/1/2018
3.3.0.840541-pre1 13,303 9/20/2018
3.2.0.871581 182,768 10/3/2018
3.2.0.839982 269,112 9/17/2018
3.2.0.809874-pre3 10,425 9/10/2018
3.2.0.729530-pre2 21,136 8/14/2018
3.2.0.637442-pre1 18,681 7/17/2018
3.1.0.697729 613,598 8/1/2018
3.1.0.637273 148,640 7/11/2018
3.1.0.583944 225,706 6/20/2018
3.1.0.561732-pre4 11,254 6/11/2018
3.1.0.550168-pre3 7,691 6/6/2018
3.1.0.530888-pre2 7,072 6/4/2018
3.1.0.469394-pre1 18,299 5/9/2018
3.0.0.561731 183,418 6/11/2018
3.0.0.550146 38,670 6/6/2018
3.0.0.530893 36,973 6/4/2018
3.0.0.482510 451,360 5/14/2018
3.0.0.446417 269,910 5/1/2018
3.0.0.427558-pre4 15,724 4/25/2018
3.0.0.354232-pre3 19,974 4/5/2018
3.0.0.296286-pre2 13,677 3/20/2018
2.5.1.527436 179,939 5/4/2018
2.5.1.444934 230,375 4/4/2018
2.5.1.392594-pre3 8,559 3/21/2018
2.5.1.340284-pre2 12,656 3/9/2018
2.5.1.317207-pre1 9,794 3/1/2018
2.5.0.280555 491,442 2/16/2018
2.5.0.122203 566,685 12/18/2017
2.5.0.121934 807,435 11/28/2017
2.5.0.91635 329,397 11/16/2017
2.5.0.77107 60,635 11/13/2017
2.5.0.75255-pre3 10,110 11/10/2017
2.5.0.19271-pre2 14,798 10/20/2017
2.4.0.91020 65,233 11/16/2017
2.4.0.74863 43,973 11/10/2017
2.4.0.38779 76,654 10/30/2017
2.4.0.18342 66,589 10/20/2017
2.4.0.282 226,067 9/29/2017
2.4.0.280 495,593 9/27/2017
2.4.0.275-pre3 13,287 9/19/2017
2.4.0.269-pre2 22,943 8/29/2017
2.4.0.266-pre1 33,032 8/16/2017
2.3.5.256-pre6 46,318 6/29/2017
2.3.5.255-pre5 10,827 6/26/2017
2.3.5.239-pre3 35,339 5/11/2017
2.3.5.235-pre2 15,725 4/26/2017
2.3.5.233-pre1 14,167 4/13/2017
2.3.4.270 308,644 8/29/2017
2.3.4.267 88,717 8/16/2017
2.3.4.247 565,008 5/16/2017
2.3.4.231 281,734 4/12/2017
2.3.4.224 290,398 3/29/2017
2.3.4.221-pre6 14,028 3/27/2017
2.3.4.214-pre5 15,745 3/14/2017
2.3.4.212-pre4 11,242 3/10/2017
2.3.4.211-pre3 8,986 3/9/2017
2.3.4.192-pre2 25,737 2/3/2017
2.3.4.184-pre1 18,383 1/13/2017
2.3.3.193 307,541 2/1/2017
2.3.3.180 262,060 1/5/2017
2.3.3.175 131,150 12/6/2016
2.3.3.168 81,229 11/23/2016
2.3.3.166-pre4 12,209 11/3/2016
2.3.3.163-pre3 10,354 10/17/2016
2.3.3.152-pre2 20,776 9/15/2016
2.3.2.127 491,729 9/14/2016
2.3.2.118-pre1 10,518 8/3/2016
2.3.1.114 186,748 8/3/2016
2.3.1.113-pre3 7,585 7/19/2016
2.3.1.111-pre2 8,421 7/4/2016
2.3.1.110-pre1 5,899 6/29/2016
2.3.0.107 231,402 6/29/2016
2.3.0.49 119,678 6/16/2016
2.3.0.46-pre3 20,240 5/30/2016
2.3.0.38-pre2 18,976 4/27/2016
2.3.0.34-pre1 14,350 4/27/2016
2.2.0.45 160,938 5/30/2016
2.2.0.31 158,700 4/27/2016
2.2.0.23-pre4 6,146 4/20/2016
2.2.0.18-pre3 6,136 4/20/2016
2.2.0.5-pre2 19,655 4/8/2016
2.2.0.4-pre1 22,640 4/5/2016
2.1.0.6529 133,363 3/13/2016
2.1.0.6526 23,224 3/9/2016
2.1.0.6524 43,905 3/2/2016
2.1.0.6521 17,885 3/1/2016
2.1.0.6517-pre5 5,568 2/18/2016
2.1.0.6513-pre4 5,788 2/9/2016
2.1.0.6508-pre3 5,763 1/28/2016
2.1.0.6503-pre2 10,217 1/22/2016
2.1.0.6501-pre1 4,881 1/21/2016
2.1.0.6500-pre1 4,824 1/20/2016
2.0.1.6505 129,602 1/28/2016
2.0.1.6495 82,380 1/20/2016
2.0.1.6492-pre1 7,280 12/3/2015
2.0.0.6490 176,197 12/1/2015
2.0.0.6484 26,162 11/21/2015
2.0.0.6482 300,083 11/17/2015
1.5.2.6478-pre3 4,263 11/17/2015
1.5.2.6477-pre2 7,640 11/10/2015
1.5.2.6469-pre1 5,356 10/20/2015
1.5.1.6471 88,469 10/20/2015
1.5.1.6468 8,519 10/20/2015
1.5.1.6460-pre2 4,710 10/13/2015
1.5.1.6455-pre1 6,496 10/2/2015
1.5.0.6447 110,691 9/25/2015
1.5.0.6446 27,848 9/16/2015
1.5.0.6404-pre3 6,306 8/25/2015
1.5.0.6401-pre2 4,959 8/21/2015
1.5.0.6396-pre1 5,645 8/5/2015
1.4.4.6449 6,145 9/25/2015
1.4.4.6443 5,089 9/16/2015
1.4.4.6392 119,733 7/29/2015
1.4.4.6391 5,940 7/28/2015
1.4.4.6387 6,875 7/27/2015
1.4.4.6379-pre3 4,552 7/20/2015
1.4.4.6378-pre2 4,577 7/16/2015
1.4.4.6377-pre1 4,555 7/14/2015
1.4.3.6376 58,488 7/9/2015
1.4.3.6374 25,425 7/1/2015
1.4.3.6372 5,745 6/30/2015
1.4.3.6364-pre3 5,522 6/16/2015
1.4.3.6358-pre2 9,650 4/24/2015
1.4.3.6356-pre1 4,614 4/21/2015
1.4.2.6359 89,971 4/30/2015
1.4.2.6355 22,061 4/21/2015
1.4.2.6353-pre2 5,775 3/31/2015
1.4.2.6350-pre1 4,589 3/30/2015
1.4.1.6349 52,394 3/30/2015
1.4.1.6347-pre2 6,453 3/19/2015
1.4.1.6342-pre1 4,662 3/10/2015
1.4.0.6341 35,928 3/9/2015
1.4.0.6340-pre2 5,664 3/6/2015
1.4.0.6336-pre1 5,096 3/3/2015
1.3.5.6337 8,920 3/5/2015
1.3.5.6335 33,459 3/2/2015
1.3.5.6333-pre1 5,657 2/17/2015
1.3.4.6332 25,935 2/17/2015
1.3.4.6331-pre4 4,848 2/13/2015
1.3.4.6329-pre3 4,515 2/12/2015
1.3.4.6328-pre2 4,402 2/11/2015
1.3.4.6325-pre1 4,646 2/9/2015
1.3.3.6323 66,067 2/9/2015
1.3.3.6322-pre3 4,362 2/6/2015
1.3.3.6321-pre2 4,647 2/4/2015
1.3.3.6318-pre1 4,526 2/2/2015
1.3.2.6316 17,816 2/3/2015
1.3.2.6313-pre3 4,578 1/30/2015
1.3.2.6309-pre2 4,774 1/28/2015
1.3.2.6299-pre1 5,404 1/20/2015
1.3.1.6296 74,124 1/4/2015
1.3.1.6294-pre1 8,305 12/24/2014
1.3.0.6292 18,752 12/24/2014
1.3.0.6286-pre4 5,693 12/19/2014
1.3.0.6284-pre3 5,118 12/12/2014
1.3.0.6280-pre2 5,587 12/9/2014
1.3.0.6275-pre1 11,075 11/12/2014
1.2.3.6257 50,711 10/2/2014
1.2.3.6256-pre4 5,366 9/26/2014
1.2.3.6255-pre3 6,126 9/20/2014
1.2.3.6249-pre2 5,202 9/9/2014
1.2.3.6246-pre1 7,658 8/15/2014
1.2.2.6243 36,622 7/30/2014
1.2.2.6241-pre3 5,776 7/28/2014
1.2.2.6240-pre2 7,656 7/22/2014
1.2.2.6238-pre1 6,973 7/17/2014
1.2.1.6229 12,534 7/14/2014
1.1.1.6206 17,818 6/19/2014
1.1.0.6201 18,661 6/12/2014
1.0.6197 20,057 6/4/2014
1.0.6188 15,850 5/28/2014

### 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="https://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)