Xamarin.Forms.Maps 1.5.2.6469-pre1

Maps models and renderers for Xamarin.Forms

This is a prerelease version of Xamarin.Forms.Maps.
There is a newer version of this package available.
See the version list below for details.
Install-Package Xamarin.Forms.Maps -Version 1.5.2.6469-pre1
dotnet add package Xamarin.Forms.Maps --version 1.5.2.6469-pre1
<PackageReference Include="Xamarin.Forms.Maps" Version="1.5.2.6469-pre1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Xamarin.Forms.Maps --version 1.5.2.6469-pre1
The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Release Notes

## Important Notes ##

This release is more alpha than most pre-releases. We want to get as much testing on the new optimization work as possible. Expect to see changes and more work landing into this release before promotion to stable.

## Enhancements ##

### New properties ###

These all do pretty much what you expect

- Editor.TextColor
- Entry.TextColor
- Editor.FontSize
- Editor.FontAttributes
- Editor.FontFamily

### New API ###

```csharp
public enum ListViewCachingStrategy
{
RetainElement = 0,
RecycleElement,
}
```

This new `enum` is used in conjuction with a new constructor for ListView, `ListView (ListViewCachingStrategy cachingStrategy)`. The default mode, RetainElement represents the old ListView behavior. It is also the default behavior if the old constructor is retained. The new behavior has the following characteristics.

- Only works on Android/iOS. Windows will simply get the old behavior no matter what.
- DataTemplate will be inflated to match as many native renderers for the cells are created.
- During virtualization, the Cell will have its binding context updated.

This means if an App opt into the new mode, the app must appropriately handle BindingContext updates. All data about the cell must come from the binding context or consistency errors may occur. If the cells are using custom renderers, it must ensure they properly implement property change notification. This mode is not always a pure performance win, testing is the only way to know for sure, however there are some basic guidelines:

 - Use RecycleElement if:
   - Cell BindingContext defines all properties/data about the View
   - Cells are largely similar and do not morphe dramatically based on BindingContext
   - The Cell has a moderate to small number of bindings
   - The Cell adheres well to the new performance guidelines below
 - Use RetainElement if:
   - Cells morph frequently
   - Cells have large numbers of bindings (20 to 30 tends to be the crossover point)
   - When testing RecycleElement, it is slower

Generally speaking, prefer RecycleElement as it can offer significant performance gains when in the fast path scenario. Eventually RetainElement may be phased out, however this will only happen once RetainElement no longer offers any performance advantage in any scenario.

### Layout Optimization ###

There is a new experimental layout optimization in this release of Xamarin.Forms. The optimization is complex and currently only impacts layout updates. Effectively the optimization serves to block InvalidateMeasure call chains. To get the best possible performance follow these performance guidelines:

- Leave the View.VerticalOptions and View.HorizontalOptions alone as much as possible. The default value of Fill or FillAndExpand allows for the best layout optimization.
- When using a StackLayout, make sure to have only one child set to Expand.
- Avoid RelativeLayout when possible.
- When using Grid, avoid Auto rows/columns if possible. Fixed row/cols are best. Stars are equally good if parent tree follows guidelines.
- When using AbsoluteLayout, avoid using AutoSize if possible.
- When using Labels, set the LineBreakMode to NoWrap whenever possible.

This optimization may impact the layout of your app. If you experience any differences at all, please report them as bugs. Further the optimization will work with the new ListView caching strategy, effectively doubling down on scrolling performance.

## Bug Fixes ##

[Bug 34632](https://bugzilla.xamarin.com/show_bug.cgi?id=34632) - Can't change IsPresented when setting SplitOnLandscape
[Bug 34556](https://bugzilla.xamarin.com/show_bug.cgi?id=34556) - Minimum version determination methods on iOS will fail once iOS hits version 10
[Bug 34549](https://bugzilla.xamarin.com/show_bug.cgi?id=34549) - Setting a BindableProperty of Type DateTime? to null raises Error
[Bug 34235](https://bugzilla.xamarin.com/show_bug.cgi?id=34235) - Xamarin.Forms.Platform.WinRT.TabbedPageRenderer OnElementChanged not virtual
[Bug 34061](https://bugzilla.xamarin.com/show_bug.cgi?id=34061) - RelativeLayout - First child added after page display does not appear
[Bug 34007](https://bugzilla.xamarin.com/show_bug.cgi?id=34007) - Z order drawing of children views are different on Android and iOS
[Bug 33764](https://bugzilla.xamarin.com/show_bug.cgi?id=33764) - Frame outline colour doesn't change using ViewModel
[Bug 33612](https://bugzilla.xamarin.com/show_bug.cgi?id=33612) - Removing a page from the navigation stack causes an 'Object reference' exception in Android only
[Bug 33499](https://bugzilla.xamarin.com/show_bug.cgi?id=33499) - Android WebViewRenderer doesn't unhook events properly
[Bug 32902](https://bugzilla.xamarin.com/show_bug.cgi?id=32902) - [iOS | iPad] App Crashes (without debug log) when Master Detail isPresented and navigation being popped
[Bug 32801](https://bugzilla.xamarin.com/show_bug.cgi?id=32801) - Memory Leak in TabbedPage + NavigationPage
[Bug 32447](https://bugzilla.xamarin.com/show_bug.cgi?id=32447) - [iOS] App crash when scrolling quickly through a TableView that has Pickers in the cells.
[Bug 32040](https://bugzilla.xamarin.com/show_bug.cgi?id=32040) - EntryCell.Tapped or SwitchCell.Tapped does not fire when within a TableView
[Bug 31366](https://bugzilla.xamarin.com/show_bug.cgi?id=31366) - Pushing and then popping a page modally cause ArgumentOutOfRangeException
[Bug 29257](https://bugzilla.xamarin.com/show_bug.cgi?id=29257) - CarouselPage.CurrentPage Does Not Work Properly When Used Inside a NavigationPage

## Other Fixes ##

- [A] Non-AppCompat backend no longer fails to redraw Frame correctly
- OnPlatform now passing the Windows value to WinRT projects. This API is being considered for replacement with something more extensible.
- OpenGLView now uses IOpenGLViewController for backend communication

Version History

Version Downloads Last updated
4.1.0.496342-pre2 217 6/13/2019
4.1.0.483098-pre1 327 6/5/2019
4.0.0.497661 2,487 6/13/2019
4.0.0.482894 3,140 6/3/2019
4.0.0.425677 6,800 5/14/2019
4.0.0.394984-pre10 604 5/3/2019
4.0.0.346134-pre9 751 4/18/2019
4.0.0.304370-pre8 603 4/3/2019
4.0.0.250467-pre7 508 3/20/2019
4.0.0.232914-pre6 347 3/14/2019
4.0.0.169046-pre5 751 2/21/2019
4.0.0.135214-pre4 494 2/6/2019
4.0.0.94569-pre3 517 1/24/2019
4.0.0.62955-pre2 550 1/10/2019
4.0.0.8055-pre1 1,352 12/4/2018
3.6.0.344457 17,731 4/18/2019
3.6.0.293080 9,020 4/3/2019
3.6.0.264807 6,961 3/19/2019
3.6.0.220655 11,484 3/6/2019
3.6.0.169048-pre2 241 2/21/2019
3.6.0.135200-pre1 248 2/6/2019
3.5.0.274416 838 3/26/2019
3.5.0.169047 6,558 2/20/2019
3.5.0.129452 7,737 2/6/2019
3.5.0.94564-pre3 279 1/24/2019
3.5.0.62956-pre2 331 1/10/2019
3.4.0.1039999 728 3/26/2019
3.4.0.1029999 7,208 1/24/2019
3.4.0.1009999 13,425 1/4/2019
3.4.0.1008975 34,019 11/15/2018
3.4.0.987044-pre2 541 11/8/2018
3.4.0.925479-pre1 1,173 10/18/2018
3.3.0.967583 9,604 11/1/2018
3.3.0.912540 10,204 10/18/2018
3.3.0.893527-pre3 671 10/11/2018
3.3.0.871608-pre2 851 10/1/2018
3.3.0.840541-pre1 956 9/20/2018
3.2.0.871581 16,842 10/3/2018
3.2.0.839982 15,787 9/17/2018
3.2.0.809874-pre3 835 9/10/2018
3.2.0.729530-pre2 1,280 8/14/2018
3.2.0.637442-pre1 1,946 7/17/2018
3.1.0.697729 22,935 8/1/2018
3.1.0.637273 12,336 7/11/2018
3.1.0.583944 17,681 6/20/2018
3.1.0.561732-pre4 892 6/11/2018
3.1.0.550168-pre3 788 6/6/2018
3.1.0.530888-pre2 814 6/4/2018
3.1.0.469394-pre1 1,422 5/9/2018
3.0.0.561731 6,588 6/11/2018
3.0.0.550146 3,203 6/6/2018
3.0.0.530893 2,424 6/4/2018
3.0.0.482510 12,533 5/14/2018
3.0.0.446417 5,968 5/1/2018
3.0.0.427558-pre4 1,225 4/25/2018
3.0.0.354232-pre3 1,217 4/5/2018
3.0.0.296286-pre2 1,247 3/20/2018
2.5.1.527436 8,209 5/4/2018
2.5.1.444934 14,909 4/4/2018
2.5.1.392594-pre3 725 3/21/2018
2.5.1.340284-pre2 1,006 3/9/2018
2.5.1.317207-pre1 1,010 3/1/2018
2.5.0.280555 35,368 2/16/2018
2.5.0.122203 21,878 12/18/2017
2.5.0.121934 20,859 11/28/2017
2.5.0.91635 10,289 11/16/2017
2.5.0.77107 3,347 11/13/2017
2.5.0.75255-pre3 834 11/10/2017
2.5.0.19271-pre2 1,198 10/20/2017
2.4.0.91020 5,127 11/16/2017
2.4.0.74863 4,537 11/10/2017
2.4.0.38779 9,611 10/30/2017
2.4.0.18342 6,623 10/20/2017
2.4.0.282 27,998 9/29/2017
2.4.0.280 3,670 9/27/2017
2.4.0.275-pre3 1,248 9/19/2017
2.4.0.269-pre2 2,288 8/29/2017
2.4.0.266-pre1 2,109 8/16/2017
2.3.5.256-pre6 3,223 6/29/2017
2.3.5.255-pre5 2,464 6/26/2017
2.3.5.239-pre3 3,099 5/11/2017
2.3.5.235-pre2 1,682 4/26/2017
2.3.5.233-pre1 1,252 4/13/2017
2.3.4.270 18,751 8/29/2017
2.3.4.267 10,637 8/16/2017
2.3.4.247 44,608 5/16/2017
2.3.4.231 38,073 4/12/2017
2.3.4.224 14,738 3/29/2017
2.3.4.221-pre6 2,136 3/27/2017
2.3.4.214-pre5 2,381 3/14/2017
2.3.4.212-pre4 1,061 3/10/2017
2.3.4.211-pre3 995 3/9/2017
2.3.4.192-pre2 3,372 2/3/2017
2.3.4.184-pre1 2,192 1/13/2017
2.3.3.193 27,385 2/1/2017
2.3.3.180 33,300 1/5/2017
2.3.3.175 9,706 12/6/2016
2.3.3.168 8,238 11/23/2016
2.3.3.166-pre4 1,438 11/3/2016
2.3.3.165-pre4 917 10/27/2016
2.3.3.163-pre3 1,324 10/17/2016
2.3.3.152-pre2 8,428 9/15/2016
2.3.2.127 48,219 9/14/2016
2.3.2.118-pre1 1,775 8/3/2016
2.3.1.114 17,235 8/3/2016
2.3.1.113-pre3 1,162 7/19/2016
2.3.1.111-pre2 1,136 7/4/2016
2.3.1.110-pre1 911 6/29/2016
2.3.0.107 37,657 6/29/2016
2.3.0.49 13,874 6/16/2016
2.3.0.48-pre3 941 6/16/2016
2.3.0.46-pre3 1,610 5/30/2016
2.3.0.38-pre2 1,891 4/27/2016
2.3.0.34-pre1 4,528 4/27/2016
2.2.0.45 12,094 5/30/2016
2.2.0.31 34,844 4/27/2016
2.2.0.23-pre4 1,152 4/20/2016
2.2.0.18-pre3 961 4/20/2016
2.2.0.16-pre3 1,182 4/20/2016
2.2.0.5-pre2 2,390 4/8/2016
2.2.0.4-pre1 4,440 4/5/2016
2.1.0.6529 11,495 3/13/2016
2.1.0.6526 5,418 3/9/2016
2.1.0.6524 4,144 3/2/2016
2.1.0.6521 1,415 3/1/2016
2.1.0.6517-pre5 1,143 2/18/2016
2.1.0.6513-pre4 1,117 2/9/2016
2.1.0.6508-pre3 1,279 1/28/2016
2.1.0.6503-pre2 1,849 1/22/2016
2.1.0.6501-pre1 889 1/21/2016
2.1.0.6500-pre1 1,021 1/20/2016
2.0.1.6505 18,866 1/28/2016
2.0.1.6495 5,973 1/20/2016
2.0.1.6492-pre1 1,232 12/3/2015
2.0.0.6490 10,177 12/1/2015
2.0.0.6484 2,574 11/21/2015
2.0.0.6482 3,841 11/17/2015
1.5.2.6478-pre3 861 11/17/2015
1.5.2.6477-pre2 1,270 11/10/2015
1.5.2.6469-pre1 1,207 10/20/2015
1.5.1.6471 11,431 10/20/2015
1.5.1.6468 1,367 10/20/2015
1.5.1.6460-pre2 947 10/13/2015
1.5.1.6455-pre1 2,158 10/2/2015
1.5.0.6447 9,537 9/25/2015
1.5.0.6446 4,361 9/16/2015
1.5.0.6404-pre3 1,290 8/25/2015
1.5.0.6401-pre2 1,074 8/21/2015
1.5.0.6396-pre1 1,024 8/5/2015
1.4.4.6449 1,287 9/25/2015
1.4.4.6443 1,131 9/16/2015
1.4.4.6392 10,584 7/29/2015
1.4.4.6391 1,074 7/28/2015
1.4.4.6387 1,266 7/27/2015
1.4.4.6379-pre3 1,048 7/20/2015
1.4.4.6378-pre2 977 7/16/2015
1.4.4.6377-pre1 1,039 7/14/2015
1.4.3.6376 4,480 7/9/2015
1.4.3.6374 3,319 7/1/2015
1.4.3.6372 1,119 6/30/2015
1.4.3.6364-pre3 994 6/16/2015
1.4.3.6358-pre2 1,156 4/24/2015
1.4.3.6356-pre1 1,030 4/21/2015
1.4.2.6359 10,118 4/30/2015
1.4.2.6355 2,865 4/21/2015
1.4.2.6353-pre2 1,022 3/31/2015
1.4.2.6350-pre1 912 3/30/2015
1.4.1.6349 9,523 3/30/2015
1.4.1.6347-pre2 1,207 3/19/2015
1.4.1.6342-pre1 1,126 3/10/2015
1.4.0.6341 3,551 3/9/2015
1.4.0.6340-pre2 925 3/6/2015
1.4.0.6336-pre1 961 3/3/2015
1.3.5.6337 1,453 3/5/2015
1.3.5.6335 1,390 3/2/2015
1.3.5.6333-pre1 1,011 2/17/2015
1.3.4.6332 2,100 2/17/2015
1.3.4.6331-pre4 1,034 2/13/2015
1.3.4.6329-pre3 940 2/12/2015
1.3.4.6328-pre2 911 2/11/2015
1.3.4.6325-pre1 935 2/9/2015
1.3.3.6323 1,829 2/9/2015
1.3.3.6322-pre3 985 2/6/2015
1.3.3.6321-pre2 983 2/4/2015
1.3.3.6318-pre1 940 2/2/2015
1.3.2.6316 1,632 2/3/2015
1.3.2.6313-pre3 962 1/30/2015
1.3.2.6309-pre2 983 1/28/2015
1.3.2.6299-pre1 1,076 1/20/2015
1.3.1.6296 4,932 1/4/2015
1.3.1.6294-pre1 1,105 12/24/2014
1.3.0.6292 1,842 12/24/2014
1.3.0.6286-pre4 979 12/19/2014
1.3.0.6284-pre3 1,034 12/12/2014
1.3.0.6280-pre2 995 12/9/2014
1.3.0.6275-pre1 2,597 11/12/2014
1.2.3.6257 8,267 10/2/2014
1.2.3.6256-pre4 982 9/26/2014
1.2.3.6255-pre3 1,583 9/20/2014
1.2.3.6249-pre2 1,021 9/9/2014
1.2.3.6246-pre1 1,016 8/15/2014
1.2.2.6243 3,883 7/30/2014
1.2.2.6241-pre3 930 7/28/2014
1.2.2.6240-pre2 1,298 7/22/2014
1.2.2.6238-pre1 921 7/17/2014
1.2.1.6229 2,811 7/14/2014
1.1.1.6206 6,934 6/19/2014
1.1.0.6201 1,998 6/12/2014
1.0.6197 1,385 6/4/2014
1.0.6188 3,482 5/28/2014
Show less