Unresolved reference: R

[tomriddle7]

I copied files in kotlin/es/antonborri/home_widget_example and launched main.dart but it says Unresolved reference: R

I think that this line makes error.

val views = RemoteViews(context.packageName, R.layout.example_layout).apply {

Do I have to import R to my project?

[ABausG]

Did you create the Layout File?
I would advise to do the actual Android Programming in Android Studio as that will provide you with the best code suggestions

[tomriddle7]

Sure. I created same layout file as in example. And I created Widget Configuration and WidgetReceiver.

[ABausG]

Does the issue persist after building it? Could you link me the code so I can take a look at it?

[tomriddle7]

https://github.com/tomriddle7/Dotgasaki
this is my project.

[leonardocustodio]

@tomriddle7 the problem about your project is that you created a kotlin/es/antonborri/home_widget_example directory.
This part of the example "HomeWidgetExampleProvider.kt" should be in your home directory so for your project, it should be in: kotlin/com/tomriddle7/dotgasaki/

Regards,

[tomriddle7]

@leonardocustodio It was very useful tip. It works well. Thanks.

[lucasjinreal]

@leonardocustodio I got same error, but I am not create such wrong package name directories, Still says can not resolve R.

any idea?

[lucasjinreal]

How do I make these red error gone? I already added the lib dependencies in pubspec.yml

[petrnymsa]

@jinfagang Did you managed to solve this?

[ABausG]

I think this is an issue with how the android framework is loaded. It should also appear in files like the MainActivity.kt that are created by Flutter itself.

Do you have AndroidStudio installed? Could you try (in vscode/intellij/android studio) right click on the android/ folder and say flutter -> Open Android Module in Android Studio

[ABausG]

@jinfagang @petrnymsa do you receive actual runtime errors or is this more or less only when viewing the files in the IDE?

[petrnymsa]

@ABausG Acutally runtime errors, but I've managed to in the end compile it BUT (and I know this should belong to separate issue probably).

I think whole "example" is wrong? Because there is no simply setOnClickPendingIntent as standalone method, instead I've found this solution:

 val views = RemoteViews(context.packageName, R.layout.widget_layout)
        val pendingIntent = HomeWidgetLaunchIntent.getActivity(context, MainActivity::class.java)
        views.setOnClickPendingIntent(R.id.widget_base_layout, pendingIntent)
        ```
        
        Which unfortunately does not work too...