Hello I have the following code in my project I saw it in Je

Question

Hello I have the following code in my project I saw it in JetNews repo ``` Model object AppNavigator var currentScreen Screen = Screen Home Temporary solution pending navigation support fun navigateTo destination Screen AppNavigator currentScreen = destination ``` But now I m using dev12 and we know that ` Model` is deprecated How do you guys would fix it I ve tryied ``` object AppNavigator var currentScreen MutableState lt Screen gt = state Screen Home ``` But it does not work states must be called inside composables

Kazemihabib1996 · Answer

`var currentScreen by mutableStateOf Screen Home `

Kazemihabib1996 · Answer

There are some problems with auto Import in the recent versions of AndroidStudio If the Idea throws error Type MutableState lt TypeVariable T gt has no method getValue ThemeState KProperty lt gt and thus it cannot serve as a delegate Import getValue and SetValue manually ```import androidx compose getValue import androidx compose setValue```

Val Salamakha · Answer

< Kazemihabib1996> it does not work

Kazemihabib1996 · Answer

< Val Salamakha> throws error

Val Salamakha · Answer

yes

Kazemihabib1996 · Answer

what s the error

Val Salamakha · Answer

```import androidx compose getValue import androidx compose setValue``` The abovementioned is not active and they are shown as unused

Kazemihabib1996 · Answer

I had experiences like that but it builds with out problem it s the kotlin plugins bug I think

Val Salamakha · Answer

Finally it works as Screen Home ```var currentScreen by mutableStateOf Screen Home ``` Anyway thanks to < Kazemihabib1996>

Val Salamakha · Answer

< henrikhorbovyi> The last version of Jetnews is working when you change code in the file Status kt to the following ```import androidx compose getValue import androidx compose setValueobject object JetnewsStatus var currentScreen by mutableStateOf Screen Home as Screen val favorites by mutableStateOf ModelList lt String gt val selectedTopics by mutableStateOf ModelList lt String gt ``` other code without changes

Adam Powell · Answer

You don t need to use mutableStateOf around ModelLists

nickbutcher · Answer

Jetnews is updated to `dev12` on the `develop` branch We still need to merge this back <https github com android compose samples blob develop JetNews app src main java com example jetnews ui Status kt L33|https github com android compose samples blob develop JetNews app src main java com example jetnews ui Status kt L33>

henrikhorbovyi · Answer

< Kazemihabib1996> it worked o Thanks

henrikhorbovyi · Answer

I ve tried this before but I saw an error but now it worked when I passed a ` lt T gt `

henrikhorbovyi · Answer

``` mutableStateOf lt Screen gt ```

henrikhorbovyi · Answer

I think was exactly the import error that you mentioned < Kazemihabib1996>

henrikhorbovyi · Answer

And < nickbutcher> I didn t see this pull request and I created the issue for ` Model` smile

henrikhorbovyi · Answer

Thanks to share it

nickbutcher · Answer

No worries thanks for filling it We should maybe make the `develop` branch more prominent as it s the most useful