Bug 58176 - DismissViewControllerAsync never returns in a specific case
Summary: DismissViewControllerAsync never returns in a specific case
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: XI 10.10 (d15-2)
Hardware: PC Windows
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2017-07-15 06:40 UTC by softlion
Modified: 2017-08-21 17:00 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

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Description softlion 2017-07-15 06:40:43 UTC
await viewcontroller.DismissViewControllerAsync(false) never returns when:

- the viewcontroller is a UINavigationController
- it was previously assigned to window.RootViewController and presented (along with a viewcontroller inside)
- a new UINavigationController has been assigned to window.RootViewController and presented
- await viewcontroller.DismissViewControllerAsync(false) is called

if using viewcontroller.DismissViewController(false, action) instead, the callback action is never called.
Comment 1 Vincent Dondain [MSFT] 2017-07-16 23:06:47 UTC

Could you provide a small test case so we can reproduce this issue?

Also please include your full build logs, crash reports (if any), and all version information.

To get full build logs just set the log verbosity to diagnostic at the following locations:
- On Visual Studio for Mac: Preferences > Projects > Build
- On Visual Studio for Windows: Tools > Options > Projects and Solutions > Build and Run

On Visual Studio Windows you also want to add `-v -v -v -v` to the mtouch additional arguments by right-clicking the project in the solution explorer and selecting `Properties`.
Note: this is done automatically on Visual Studio for Mac when the log verbosity is set to diagnostic.

Easiest way to get exact version information:
- On Visual Studio for Mac: "Visual Studio" menu, "About Visual Studio" item, "Show Details" button.
- On Visual Studio for Windows: "Help menu", "About Microsoft Visual Studio" item.
Then copy/paste the version information (you can use the "Copy Information" button).
Comment 2 Timothy Risi 2017-08-21 17:00:32 UTC
We have not received the requested information. If you are still experiencing this issue please provide all the requested information and re-open the bug report. Thanks!