mvvmcross/mvvmcross-iossupport

iOS support packages for MvvmCross: The .NET MVVM framework for cross-platform solutions

We've moved! This repo can be found in the main repository

mvvmcross-iossupport's Issues

MvxSidePanelsPresenter bug - IOS

I am using the latest Xamarin version and MvvmCross 4.3.0

The problems occurs when I navigate from screen to screen randomly. Let's say I have an home screen and from there I go to UIViewController A then I go back to Home, then I go to UIViewController B and then back to home again, then I go to UIViewController A again and then back to home again, after I go to B again it sometimes breaks...

As an actual behavior it somehow mixed the view models and because the outlets are not there it just breaks and crashes.

Configuration

Version: 4.3

Platform: iOS

Stacktrace:

Unable to cast object of type 'GoWorky.Mobile.iOS.Employer.ChooseManagerViewController' (Objective-C type: 'ChooseLocationViewController') to type 'GoWorky.Mobile.iOS.Employer.ChooseLocationViewController'.
Additional information:
Selector: setTableView:
Method: GoWorky.Mobile.iOS.Employer.ChooseLocationViewController:set_TableView (UIKit.UITableView)

---

at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Users/builder/data/lanes/3859/b638977c/source/xamarin-macios/src/UIKit/UIApplication.cs:79
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Users/builder/data/lanes/3859/b638977c/source/xamarin-macios/src/UIKit/UIApplication.cs:63
at GoWorky.Mobile.iOS.Employer.Application.Main (System.String[] args) [0x00009] in /Users/flaviusdemian/projects/UpWorky/UpWorky.Mobile/GoWorky.Mobile.iOS.Employer/Main.cs:14
The idea is that it has a confusion with the previous view controller I was besides Home - at some point it swaps UIViewController A with UIViewController B.

Archive.zip

I can provide more data if needed.

Here you have the mvx trace:

mvx: Diagnostic: 114.11 Showing ViewModel ChooseLocationViewModel
iOSNavigation: Diagnostic: 114.11 Navigate requested
mvx: Warning: 114.13 Hint ignored MvxActivePanelPresentationHint
mvx: Diagnostic: 115.76 Requesting presentation change
mvx: Warning: 115.76 Hint ignored MvxClosePresentationHint
mvx: Diagnostic: 117.18 Showing ViewModel ChooseLocationViewModel
iOSNavigation: Diagnostic: 117.18 Navigate requested
mvx: Warning: 117.19 Hint ignored MvxActivePanelPresentationHint
mvx: Diagnostic: 118.18 Showing ViewModel AddLocationDialogViewModel
iOSNavigation: Diagnostic: 118.18 Navigate requested
mvx: Warning: 118.20 Hint ignored MvxActivePanelPresentationHint
mvx: Diagnostic: 122.92 Showing ViewModel ChooseManagerViewModel
iOSNavigation: Diagnostic: 122.92 Navigate requested
mvx: Warning: 122.93 Hint ignored MvxActivePanelPresentationHint
mvx: Diagnostic: 124.63 Requesting presentation change
mvx: Warning: 124.63 Hint ignored MvxClosePresentationHint
mvx: Diagnostic: 126.03 Showing ViewModel ChooseManagerViewModel
iOSNavigation: Diagnostic: 126.03 Navigate requested
mvx: Warning: 126.04 Hint ignored MvxActivePanelPresentationHint
mvx: Diagnostic: 127.08 Showing ViewModel AddManagerDialogViewModel
iOSNavigation: Diagnostic: 127.08 Navigate requested
mvx: Warning: 127.10 Hint ignored MvxActivePanelPresentationHint
Thread finished: #11
Thread started: #20
mvx: Diagnostic: 130.85 Showing ViewModel ChooseLocationViewModel
iOSNavigation: Diagnostic: 130.85 Navigate requested
mvx: Warning: 130.86 Hint ignored MvxActivePanelPresentationHint
Archive.zip

CSProj file errors

I downloaded the MvvmCross-iOSSupport repro to have a look at the new stuff. There are a couple of small issues with the CSPROJ

The MvvmCross.iOS.Support project has a SidePanels folder.

1. The IMvxToggleMenu.cs is in the CsProj files but not on disk. I assume it is old
2. The File IMvbxSideMenu.cs is in source download but not included in the CSPROJ

XamarinSidebar implementation always showing 'Menu' buttons

The current (version 4.4.0) implementation of the Xamarin Sidebar component always shows a "Menu" link button on the left and right side of the navigation bar, even when no left or right menu implementations are provided.

I am currently working on a fix.

Add sidemenu implementation for MvvmCross

Allow user to use own hamburger icon

https://github.com/MvvmCross/MvvmCross-iOSSupport/blob/master/MvvmCross.iOS.Support.XamarinSidebar/Hints/MvxSidebarActivePanelPresentationHint.cs#L49

This needs to be configurable

Accordion ExpandableTableView support

ExpandableTableView should support "Accordion Expand" - that means:
at same time only one item can be expanded/collapsed.

ExpandableTableView should have protected methods/events like Expanded/Collapsed

Like in title.
This is needed so some fancy animations like expand arrow rotation can be implemented.

MvxSidePanels JASidePanel bug

https://github.com/MvvmCross/MvvmCross-iOSSupport/issues/53> Please only file bugs verified on latest version of MvvmCross and stable Xamarin tools
I have the latest stable:

Apple Developer Tools
Xcode 8.1 (11544)
Build 8B62

Xamarin.iOS
Version: 10.2.0.4 (Xamarin Studio Community)
Hash: b638977
Branch: xcode8.1
Build date: 2016-10-25 14:38:48-0400

Steps to reproduce

1. I just start the application and show the home view mode which has also a menu in the left part.

Expected behavior

It should not thrown any navigation exception because when it is broken the NavigationViewController stack is not working properly!

Configuration

Version: 4.4

Platform: iOS

Stack Trace:

2016-11-06 20:36:41.774 Xamarin.iOS: Received unhandled ObjectiveC exception: NSInternalInconsistencyException <MvxMultiPanelController: 0x1381cbda0>: An -observeValueForKeyPath:ofObject:change:context: message was received but not handled.
Key path: view
Observed object: <UINavigationController: 0x1379be400>
Change: {
kind = 1;
}
Context: 0x105e9a4d0

Exception is: Foundation.MonoTouchException: Objective-C exception thrown. Name: NSInternalInconsistencyException Reason: <Common_MvxMultiPanelController: 0x1381cbda0>: An -observeValueForKeyPath:ofObject:change:context: message was received but not handled.
Key path: view
Observed object: <UINavigationController: 0x1379be400>
Change: {
kind = 1;
}
Context: 0x105e9a4d0
Native stack trace:
0 CoreFoundation 0x0000000180bd2dc8 + 148
1 libobjc.A.dylib 0x0000000180237f80 objc_exception_throw + 56
2 CoreFoundation 0x0000000180bd2cf8 + 0
3 Foundation 0x0000000181578ac0 + 164
4 0x0000000100100950 -[JASidePanelController observeValueForKeyPath:ofObject:change:context:] + 132
5 Foundation 0x00000001814cff64 + 304
6 Foundation 0x00000001814e99fc + 220
7 Foundation 0x00000001814e97bc + 124
8 libJASidePanels.dll.dylib 0x0000000105e83804 -[JASidePanelController setCenterPanel:] + 248
9 libJASidePanels.dll.dylib 0x0000000105e93308 wrapper_managed_to_native_ApiDefinition_Messaging_void_objc_msgSendSuper_IntPtr_intptr_intptr_intptr + 216
10 libJASidePanels.dll.dylib 0x0000000105e8d564 JASidePanels_JASidePanelController_set_CenterPanel_UIKit_UIViewController + 612
11 dylib 0x00000001058a8ec0 Common_CustomMvxSidePanelsPresenter_ShowFirstView_UIKit_UIViewController + 544
12 dylib 0x00000001058a69d8 Common_CustomMvxSidePanelsPresenter_Show_MvvmCross_iOS_Views_IMvxIosView + 1336
13 libMvvmCross.iOS.dll.dylib 0x000000010550d9fc MvvmCross_iOS_Views_Presenters_MvxIosViewPresenter_Show_MvvmCross_Core_ViewModels_MvxViewModelRequest + 204
14 libMvvmCross.iOS.dll.dylib 0x00000001055122a4 MvvmCross_iOS_Views_MvxIosViewDispatcher__c__DisplayClass2_0__ShowViewModelb__0 + 276
15 libMvvmCross.iOS.dll.dylib 0x00000001055069f0 MvvmCross_iOS_Views_MvxIosUIThreadDispatcher_RequestMainThreadAction_System_Action + 288
16 libMvvmCross.iOS.dll.dylib 0x000000010550658c MvvmCross_iOS_Views_MvxIosViewDispatcher_ShowViewModel_MvvmCross_Core_ViewModels_MvxViewModelRequest + 380
17 libGoWorky.Mobile.iOS.Common.dll.dylib 0x000000010589c388 GoWorky_Mobile_iOS_Common_Services_NavigationService_ShowViewModelFromOutsideOfMvvmCross_T_REF_System_Collections_Generic_IDictionary_2_string_string + 408
18 libGoWorky.Mobile.iOS.Employer.exe.dylib 0x000000010073baf0 GoWorky_Mobile_iOS_Employer_AppDelegate_FinishedLaunching_UIKit_UIApplication_Foundation_NSDictionary + 1712
19 libmscorlib.dll.dylib 0x0000000100e7d534 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 244
20 libmonosgen-2.0.dylib 0x00000001004021dc mono_jit_runtime_invoke + 1772
21 libmonosgen-2.0.dylib 0x0000000100472d0c do_runtime_invoke + 112
22 libmonosgen-2.0.dylib 0x0000000100472c68 mono_runtime_invoke + 208
23 GoWorky.Mobile.iOS.Employer 0x000000010018fd54 ZL31native_to_managed_trampoline_48P11objc_objectP13objc_selectorPP11_MonoMethodP13UIApplicationP12NSDictionaryPKcSB_SB_SB + 692
24 GoWorky.Mobile.iOS.Employer 0x000000010018fa90 -[AppDelegate application:didFinishLaunchingWithOptions:] + 96
25 UIKit 0x0000000185daa9c0 + 400
26 UIKit 0x0000000185fda184 + 2904
27 UIKit 0x0000000185fde5f0 + 1684
28 UIKit 0x0000000185fdb764 + 168
29 FrontBoardServices 0x00000001825737ac + 36
30 FrontBoardServices 0x0000000182573618 + 168
31 FrontBoardServices 0x00000001825739c8 + 56
32 CoreFoundation 0x0000000180b8909c + 24
33 CoreFoundation 0x0000000180b88b30 + 540
34 CoreFoundation 0x0000000180b86830 + 724
35 CoreFoundation 0x0000000180ab0c50 CFRunLoopRunSpecific + 384
36 UIKit 0x0000000185da394c + 460
37 UIKit 0x0000000185d9e088 UIApplicationMain + 204
38 libXamarin.iOS.dll.dylib 0x00000001009d24f4 wrapper_managed_to_native_UIKit_UIApplication_UIApplicationMain_int_string___intptr_intptr + 324
39 libXamarin.iOS.dll.dylib 0x000000010096057c UIKit_UIApplication_Main_string___intptr_intptr + 44
40 libXamarin.iOS.dll.dylib 0x000000010096053c UIKit_UIApplication_Main_string___string_string + 172
41 libGoWorky.Mobile.iOS.Employer.exe.dylib 0x000000010073b094 GoWorky_Mobile_iOS_Employer_Application_Main_string_ + 196
42 libmscorlib.dll.dylib 0x0000000100e7d534 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 244
43 libmonosgen-2.0.dylib 0x00000001004021dc mono_jit_runtime_invoke + 1772
44 libmonosgen-2.0.dylib 0x0000000100472d0c do_runtime_invoke + 112
45 libmonosgen-2.0.dylib 0x00000001004752f0 mono_runtime_exec_main + 832
46 libmonosgen-2.0.dylib 0x0000000100474f0c mono_runtime_run_main + 764
47 libmonosgen-2.0.dylib 0x00000001003e67f8 mono_jit_exec + 236
48 libxamarin-debug.dylib 0x00000001006ddcd8 xamarin_main + 2168
49 GoWorky.Mobile.iOS.Employer 0x00000001001a986c main + 96
50 libdyld.dylib 0x000000018064e8b8 + 4

at (wrapper managed-to-native) ApiDefinition.Messaging:void_objc_msgSendSuper_IntPtr (intptr,intptr,intptr)
at JASidePanels.JASidePanelController.set_CenterPanel (UIKit.UIViewController value) [0x00061] in <1ac433a8189e442a9703ae131fdc616e>:0
at GoWorky.Mobile.iOS.Common.CustomMvxSidePanelsPresenter.ShowFirstView (UIKit.UIViewController viewController) [0x00033] in /Users/flaviusdemian/projects/UpWorky/UpWorky.Mobile/GoWorky.Mobile.iOS.Common/UI/Presenter/CustomMvxSidePanelsPresenter.cs:562 0 CoreFoundation 0x0000000180bd2dc8 + 148
1 libobjc.A.dylib 0x0000000180237f80 objc_exception_throw + 56
2 CoreFoundation 0x0000000180bd2cf8 + 0
3 Foundation 0x0000000181578ac0 + 164
4 GoWorky.Mobile.iOS.Employer 0x0000000100100950 -[JASidePanelController observeValueForKeyPath:ofObject:change:context:] + 132
5 Foundation 0x00000001814cff64 + 304
6 Foundation 0x00000001814e99fc + 220
7 Foundation 0x00000001814e97bc + 124
8 libJASidePanels.dll.dylib 0x0000000105e83804 -[JASidePanelController setCenterPanel:] + 248
9 libJASidePanels.dll.dylib 0x0000000105e93308 wrapper_managed_to_native_ApiDefinition_Messaging_void_objc_msgSendSuper_IntPtr_intptr_intptr_intptr + 216
10 libJASidePanels.dll.dylib 0x0000000105e8d564 JASidePanels_JASidePanelController_set_CenterPanel_UIKit_UIViewController + 612
11 libGoWorky.Mobile.iOS.Common.dll.dylib 0x00000001058a8ec0 GoWorky_Mobile_iOS_Common_CustomMvxSidePanelsPresenter_ShowFirstView_UIKit_UIViewController + 544
12 libGoWorky.Mobile.iOS.Common.dll.dylib 0x00000001058a69d8 GoWorky_Mobile_iOS_Common_CustomMvxSidePanelsPresenter_Show_MvvmCross_iOS_Views_IMvxIosView + 1336
13 libMvvmCross.iOS.dll.dylib 0x000000010550d9fc MvvmCross_iOS_Views_Presenters_MvxIosViewPresenter_Show_MvvmCross_Core_ViewModels_MvxViewModelRequest + 204
14 libMvvmCross.iOS.dll.dylib 0x00000001055122a4 MvvmCross_iOS_Views_MvxIosViewDispatcher__c__DisplayClass2_0__ShowViewModelb__0 + 276
15 libMvvmCross.iOS.dll.dylib 0x00000001055069f0 MvvmCross_iOS_Views_MvxIosUIThreadDispatcher_RequestMainThreadAction_System_Action + 288
16 libMvvmCross.iOS.dll.dylib 0x000000010550658c MvvmCross_iOS_Views_MvxIosViewDispatcher_ShowViewModel_MvvmCross_Core_ViewModels_MvxViewModelRequest + 380
17 libGoWorky.Mobile.iOS.Common.dll.dylib 0x000000010589c388 GoWorky_Mobile_iOS_Common_Services_NavigationService_ShowViewModelFromOutsideOfMvvmCross_T_REF_System_Collections_Generic_IDictionary_2_string_string + 408
18 libGoWorky.Mobile.iOS.Employer.exe.dylib 0x000000010073baf0 GoWorky_Mobile_iOS_Employer_AppDelegate_FinishedLaunching_UIKit_UIApplication_Foundation_NSDictionary + 1712
19 libmscorlib.dll.dylib 0x0000000100e7d534 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 244
20 libmonosgen-2.0.dylib 0x00000001004021dc mono_jit_runtime_invoke + 1772
21 libmonosgen-2.0.dylib 0x0000000100472d0c do_runtime_invoke + 112
22 libmonosgen-2.0.dylib 0x0000000100472c68 mono_runtime_invoke + 208
23 GoWorky.Mobile.iOS.Employer 0x000000010018fd54 ZL31native_to_managed_trampoline_48P11objc_objectP13objc_selectorPP11_MonoMethodP13UIApplicationP12NSDictionaryPKcSB_SB_SB + 692
24 GoWorky.Mobile.iOS.Employer 0x000000010018fa90 -[AppDelegate application:didFinishLaunchingWithOptions:] + 96
25 UIKit 0x0000000185daa9c0 + 400
26 UIKit 0x0000000185fda184 + 2904
27 UIKit 0x0000000185fde5f0 + 1684
28 UIKit 0x0000000185fdb764 + 168
29 FrontBoardServices 0x00000001825737ac + 36
30 FrontBoardServices 0x0000000182573618 + 168
31 FrontBoardServices 0x00000001825739c8 + 56
32 CoreFoundation 0x0000000180b8909c + 24
33 CoreFoundation 0x0000000180b88b30 + 540
34 CoreFoundation 0x0000000180b86830 + 724
35 CoreFoundation 0x0000000180ab0c50 CFRunLoopRunSpecific + 384
36 UIKit 0x0000000185da394c + 460
37 UIKit 0x0000000185d9e088 UIApplicationMain + 204
38 libXamarin.iOS.dll.dylib 0x00000001009d24f4 wrapper_managed_to_native_UIKit_UIApplication_UIApplicationMain_int_string___intptr_intptr + 324
39 libXamarin.iOS.dll.dylib 0x000000010096057c UIKit_UIApplication_Main_string___intptr_intptr + 44
40 libXamarin.iOS.dll.dylib 0x000000010096053c UIKit_UIApplication_Main_string___string_string + 172
41 libGoWorky.Mobile.iOS.Employer.exe.dylib 0x000000010073b094 GoWorky_Mobile_iOS_Employer_Application_Main_string__ + 196
42 libmscorlib.dll.dylib 0x0000000100e7d534 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 244
43 libmonosgen-2.0.dylib 0x00000001004021dc mono_jit_runtime_invoke + 1772
44 libmonosgen-2.0.dylib 0x0000000100472d0c do_runtime_invoke + 112
45 libmonosgen-2.0.dylib 0x00000001004752f0 mono_runtime_exec_main + 832
46 libmonosgen-2.0.dylib 0x0000000100474f0c mono_runtime_run_main + 764
47 libmonosgen-2.0.dylib 0x00000001003e67f8 mono_jit_exec + 236
48 libxamarin-debug.dylib 0x00000001006ddcd8 xamarin_main + 2168
49 GoWorky.Mobile.iOS.Employer 0x00000001001a986c main + 96
50 libdyld.dylib 0x000000018064e8b8 + 4

---

2016-11-06 20:36:41.878 GoWorky.Mobile.iOS.Employer[506:128384] mvx: Diagnostic: 8.72 Showing ViewModel MenuViewModel
2016-11-06 20:36:41.878 GoWorky.Mobile.iOS.Employer[506:128384] iOSNavigation: Diagnostic: 8.72 Navigate requested

JASidePanels vs XamarinSideBar

I'm wondering which are the differences between these two components...
Becase I'm not sure about which one I should choose for a project of mine.

This is my basic understanding:

• the JASidePanels component is distribuited by Xamarin
  https://components.xamarin.com/view/jasidepanels
  which is just a binding library around the native library:
  https://github.com/gotosleep/JASidePanels
  Both the native version and the Binding Library of JASidePanels component don't get new updates since long time.
• the XamarinSideBar is a c# component and can be found here:
  https://github.com/jdehlin/Xamarin-Sidebar
  And seems to receive some contribution once in a while.

Are these statement correct?
Moreover, do exists any relevant differences in the features provided by these components?

MvxTabsPresenter: Set title and icon for tabs using MvxTabPresentationAttribute

The current implementation of MvxTabsPresenter forces the user to use hard-coded strings to set each tab's title and icon through presentationValues parameter of ShowViewModelmethod.

Both attributes should be set when defining that a view will be presented as a tab.

I'll PR this in a few seconds.

MvxExpandableTableViewSource With Swipe To Action

Steps to reproduce

1. Change Sample to have Swipe To Action.
2. Open sections.
3. Swipe any cell.

Expected behavior

Only swiped cell must be moved.

Actual behavior

Sections moved.

Configuration

Version: 4.4.0

Platform: iOS

MvxExpandableTableViewSource: GetViewForHeader multiple buttons added

In the MvxExpandableTableViewSource:
link

In the GetViewForHeader method, there is a new button added to the header every time the method is called.

As the header is obtained through the GetOrCreateHeaderCellFor method, the cell may have already been created and is being reused. Therefore you will have multiple buttons added to the same header, all calling the EventHandler method with different section's.

Tapping on menu items on Right side bar is not working

Steps to reproduce

1. Download sample app from https://github.com/MarcBruins/MvvmCross-Sidebar-Sample which uses the libraries
2. On Menu view make panel to Right side
3. Launch the app and swipe from right
4. Tap on menu item
5. Not able tap.

Expected behavior

Able to Tap on right side bar menu items

Actual behavior

Not able to tap on right side bar menu items

Configuration

Platform: iOS

Info on issue:
Seems be in class MvxSidebarPanelController and if interchange right and left side bar, i can able to tap.

LeftSidebarController = new SidebarController(_subRootViewController, NavigationController, initialEmptySideMenu);
RightSidebarController = new SidebarController(this, _subRootViewController, initialEmptySideMenu);

Create Demo Using MvxExpandableTableViewSource

Currently the sample applications do not make use of the MvxExpandableTableViewSource in order to demonstrate its use and functionality. This should be added in a future version of the library.

Fix samples for MvxTabsPresenter so they work without provisioning profiles

As mentioned in #36 (comment) something is wrong with the build settings for the sample, so it won't run on Sim without having provisioning profiles.

Needs fixing.

"Hamburger" icon disappears

Can be reproduced in current MvvmCross-iOSSupport.Samples (commit c56c97f).

Steps to reproduce

1. Run MvvmCross-iOSSupport.Samples with MvvmCross.iOS.Support.Sidebar as startup project
2. Tap on Hamburger icon, notice that sidebar opens and Hamburger icon remains visible
3. Tap on Example Menu Item in sidebar, notice that Hamburger icon disappears

Expected behavior

Hamburger icon should always be visible

Actual behavior

Hamburger icon disappears after tapping on first menu element

Configuration

Version: 4.2.3

Platform: iOS

NOTE: calling ShowMenu for every newly-opened screen does make the Hamburger icon reappear, but it isn't a viable solution because it creates a new instance of the menu

XamarinSidebar: When no menu is defined, the right side menu can still be opened with pan gesture

As the title says, when no menu is displayed (no ShowViewModel<>() call for any of the menus) the right menu can still be opened with a pan gesture and a black view is displayed.

Maybe the presenter is intented to always display a side panel, but there are some cases (like a login screen) where no menu is required.

Steps to reproduce

1. Open iOS-Support solution and set MvvmCross.iOS.Support.XamarinSidebarSample.iOS as startup project.

2. Comment this and this lines

3. Run sample

Expected behavior

The right panel shouldn't be opened when performing a pan gesture.

Actual behavior

The right panel is opened when performing a pan gesture.

Configuration

Latest and greatest Mvx!

Version: > 4.4, source version (no nuget)

Platform: iOS

Debug file embedded in final NuGet packages

Looks like MvvmCross.iOS.Support.nuspec is embedding some temporary *.cs files in the final package currently distributed on NuGet. The package contains the lib\Xamarin.iOS10\obj with 3 TemporaryGeneratedFile_*.cs file in each Debug and Release.

The problem seems to come from this line of code but I am not filling confident to PR on this as I currently do not understand why it is there in the first place (no nuget background, sorry).

Tab presentation: impossible to have dynamic tab title

710b4b5

After this commit, title and icon can only be set with the MvxTabPresentation annotation:

[MvxTabPresentation(MvxTabPresentationMode.Tab, "Tab 2", "ic_tabbar_menu", true)]

However, for annotations you can only use constant values. Hence, the possibility for a dynamic tab title (for example for localization) is impossible.

This used to be possible using the presentationBundle:

ShowViewModel<Tab2ViewModel>(presentationBundle: new MvxBundle(new Dictionary<string, string> { { "icon_name", "ic_tabbar_menu" }, { "title", "Tab 2" } }));

Version: 4.4

Platform: iOS

MvvmCross Ios Navigation bug

To help us fix your issue, please provide the information in the below template.

Note: There is often little we can do without a minimal reproducible sample of the issue, so please provide that in a standalone git repository and link it here.

https://github.com/slown1/IosNavigationBug

Please only file bugs verified on latest version of MvvmCross and stable Xamarin tools
I am on the stable channel and I am up to date.

Steps to reproduce

After you login go from the menu to the Notifications, then Shift Templates, then History and repeat these steps until it breaks.
The exception is caught in

You can run the application in the simulator with the Developer Automatic settings.
I have noticed that in the simulator it reproduces harder and it also has another crash which seems like a leek. Can you also help here?

1. http://www.screencast.com/t/3tZnZIvXDAf

Expected behavior

It should not crash

Actual behavior

It crashes with exceptions which are like this:

Unable to cast object of type 'GoWorky.Mobile.iOS.Employer.TalentPoolViewController' (Objective-C type: 'NotificationsViewController') to type 'GoWorky.Mobile.iOS.Employer.NotificationsViewController'.
Additional information:
Selector: setTableView:
Method: GoWorky.Mobile.iOS.Employer.NotificationsViewController:set_TableView (UIKit.UITableView)

Unable to cast object of type 'GoWorky.Mobile.iOS.Employer.TemplatesViewController' (Objective-C type: 'TalentPoolViewController') to type 'GoWorky.Mobile.iOS.Employer.TalentPoolViewController'.
Additional information:
Selector: setTableView:
Method: GoWorky.Mobile.iOS.Employer.TalentPoolViewController:set_TableView (UIKit.UITableView)

Configuration

Version: 4.4.0

Platform: iOS