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On windows phone DisplayActionSheet does not await properly. The task returns before the user makes a selection.
ToolbarItems.Add(new ToolbarItem("Actions", "actions.png", async () =>
string _option1 = "Option 1";
string _option2 = "Option 2";
var _result = await DisplayActionSheet("", "Cancel", "", _option1, _option2);
if (_result == _option1)
else if (_result == _option2)
Created attachment 9865 [details]
I have checked this issue but I am unable to reproduce this issue.
Steps I followed:
1. I have created sample project with the help of bug description.
2. Download the attached sample application
3. Build and deploy on android device
4. Click on toolbar icon
5. Select any option from DisplayActionSheet
I have checked this on windows emulator and observed that it is working fine.
Could you please provide sample application and build info ( Xamarin.VS + Xamarin.Forms) ? So that we can reproduce this issue at our end.
You can get XVS info from here:
Visual Studio => About Microsoft Visual Studio => Copy Info
Microsoft Visual Studio Professional 2013
Version 12.0.30723.00 Update 3
Microsoft .NET Framework
Installed Version: Professional
LightSwitch for Visual Studio 2013 06177-004-0447006-02641
Microsoft LightSwitch for Visual Studio 2013
Team Explorer for Visual Studio 2013 06177-004-0447006-02641
Microsoft Team Explorer for Visual Studio 2013
Visual Basic 2013 06177-004-0447006-02641
Microsoft Visual Basic 2013
Visual C# 2013 06177-004-0447006-02641
Microsoft Visual C# 2013
Visual C++ 2013 06177-004-0447006-02641
Microsoft Visual C++ 2013
Visual F# 2013 06177-004-0447006-02641
Microsoft Visual F# 2013
Visual Studio 2013 Code Analysis Spell Checker 06177-004-0447006-02641
Microsoft® Visual Studio® 2013 Code Analysis Spell Checker
Portions of International CorrectSpell™ spelling correction system © 1993 by Lernout & Hauspie Speech Products N.V. All rights reserved.
The American Heritage® Dictionary of the English Language, Third Edition Copyright © 1992 Houghton Mifflin Company. Electronic version licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.
Windows Phone SDK 8.0 - ENU 06177-004-0447006-02641
Windows Phone SDK 8.0 - ENU
Application Insights Tools for Visual Studio Package 1.0
Application Insights Tools for Visual Studio
ASP.NET and Web Tools 12.3.50717.0
Microsoft Web Developer Tools contains the following components:
Support for creating and opening ASP.NET web projects
Browser Link: A communication channel between Visual Studio and browsers
Page Inspector: Inspection tool for ASP.NET web projects
Scaffolding: A framework for building and running code generators
Server Explorer extensions for Microsoft Azure Websites
Web publishing: Extensions for publishing ASP.NET web projects to hosting providers, on-premises servers, or Microsoft Azure
ASP.NET Web Frameworks and Tools 2012.2 4.1.21001.0
For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563
ASP.NET Web Frameworks and Tools 2013 5.2.20703.0
For additional information, visit http://www.asp.net/
Common Azure Tools 1.2
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.
Microsoft Advertising SDK for Windows Phone
Microsoft Advertising SDK for Windows Phone
Microsoft Azure Mobile Services Tools 1.2
Microsoft Azure Mobile Services Tools
NuGet Package Manager 2.8.50926.663
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.
Office Developer Tools for Visual Studio 2013 ENU 12.0.30626
Microsoft Office Developer Tools for Visual Studio 2013 ENU
PowerShell Tools 1.2
Provides file classification services using PowerShell
PreEmptive Analytics Visualizer 1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.
SQL Server Data Tools 12.0.30919.1
Microsoft SQL Server Data Tools
Windows Phone 8.1 SDK Integration 1.0
This package integrates the tools for the Windows Phone 8.1 SDK into the menus and controls of Visual Studio.
Workflow Manager Tools 1.0 1.0
This package contains the necessary Visual Studio integration components for Workflow Manager.
Xamarin 3.9.296.0 (d66d164)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android 18.104.22.168 (49a04b966feb40dfdba49d57ba16249b66d606a6)
Visual Studio plugin to enable development for Xamarin.Android.
Xamarin.iOS 22.214.171.124 (3b3ef438017c7ecf486defa9e01567a5f2b3cb2a)
Visual Studio extension to enable development for Xamarin.iOS.
Xamarin.iOS Unified Migration 1.0
Automated migration for Xamarin iOS Classic projects to Unified
The issue is not with Android. Check WINDOWS PHONE.
I will submit a sample...
Created attachment 10162 [details]
Demo app showing bug 27119
This seems to affect WinPhone only.
1) Start the app
2) Click "Show Action Sheet"
3) The label should update with the action sheet result
4) Click "Replace App.MainPage"
5) Click "Show Action Sheet"
6) Note the label text stating that the action sheet was not awaited
The same is true if you click "Navigation.PushAsync".
I vote for a priority bump on this issue because action sheets are used extensively in so many applications. I just don't see how it's possible to release a WinPhone app using Xamarin.Forms while this issue exists.
Priority bump please. When you change the MainPage, the await no longer works.
Xamarin, Priority bump please
Bug still exists.
Just to make it crystal clear and to hopefully get this on the CONF list, the issue only occurs once the MainPage has been changed after it has been initially set.
For example you initially set
Application.MainPage = new MyNavPage();
in your App.cs. Then later in code you change it again to
Application.MainPage = new MyOtherNavPage();
After this point, DisplayAlert and DisplayActionSheet both no longer wait for a user selection or action.
await DisplayAlert("title", "message", "accept", "cancel");
will not wait for any user input. It will show the Alert or ActionSheet correctly but the code will move on to the next line without waiting for the user to press accept or cancel.
This only affects Windows Phone and does not affect iOS or Android.
*** Bug 30377 has been marked as a duplicate of this bug. ***
I have this bug also ! sam scenario
DisplayActionSheet doesnt' await if you invoke it after changing the mainpage.
still present in 1.4.3-pre3
Should be fixed in 1.4.4-pre1
I have checked this issue with Xamarin.Forms.126.96.36.19979-pre3 and its working fine at my end.
Hence closing this issue.