Migrating to the new WpfHost #16586
DomagojJugovich
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Migrating to the new WpfHost
#16586
Replies: 2 comments 9 replies
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@DomagojJugovich You were following these instructions right? I quickly checked your sample app and first you were missing the default App constructor. @jeromelaban wondering if we need to adjust the current documentation here in case there is no |
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7 replies
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Here is complete solution, with all manglings from above : |
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It looks like this block: uno/build/nuget/uno.winui.common.targets Line 225 in 4b8dae3 is not being executed in your context, which is supposed to remove the files not supported by Wpf. You may want to consider moving to the single project where the WPF files do not need to be included and won't be used by the toolchain (the app is not a |
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I went to migrate to single project , only to see after a couple hours that it does not support UWP. |
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Porting to WinUI can be done relatively easily with this doc. Let us know if you're missing something! |
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All this migrations potentially leave stuff inconsistent, so I created new project/solution with newest templates for UnoSDK / WinUI only, and migrated all may code and files. By that I migrated to Uno SDK, single project and WinUI at once. All UWP to WinUI tidbits are solved and app runs (first screen loads), Desktop head works, Android works. this.Navigator().NavigateRouteAsync(this, "PostavkePage"); //this is on button click from MainPage to PostavkePageI have no RegisterRoutes for now, as I see that is not important. .....
#if !WINDOWS
SystemNavigationManager.GetForCurrentView().BackRequested += OnBackRequested;
#endif
....
private void OnBackRequested(object? sender, BackRequestedEventArgs e)
{
var nav = this.Navigator();
if (nav.CanGoBack().Result)
{
nav.NavigateBackAsync(this);
}
//Frame.GoBack();
// Need to set this to true to prevent the device back bubbling up to the system and closing the app
e.Handled = true;
}This event fires on android emulator hw button, so that part works. But CanGoBack is false, even if I ignore that and fire NavigateBackAsync nothing happens. To see how new extension works with navigation I found that best example is commerce app in uno examples so I used that as a guideline. In App.xml.cs I tried only first line or only second line , it doesn't make a difference , second line I found in commerce example : I watched all techbites, all available documentation, but how navigations works "under the hood" is a mystery to me, will look at the source code of uno navigation extension later. Also in commerce app I saw how to log debug details of navigation extension so here it is : |
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@DomagojJugovich there's some docs on using Uno.Extensions navigation for a variety of scenarios. Routes are important to use navigation but there is automatic registration (which uses reflection) which allows you to navigate by name for page or viewmodels (ie the route would be "Main" for a page called MainPage or viewmodel called MainViewModel). |
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2 replies
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Can you see from debug output why my back navigation doesn't work for this simple scenario for a start. OK, I will ask on extension discussion. |
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Related discussion for Uno.Extensions: |
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I cant make it to work in existing app that I am upgrading to .2 , but for simplicity I created blank app with new templates and tried there. Maybe I don't understand migrate instructions.
But here is whole VS 2022 solution to see, new just created from new templates, only thing changed is from short instruction on : Migrating to the new WpfHost.
Please see what I am doing wrong, I want WPF head to work.
Inventura.zip
THX , Domagoj
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