IssueTracker

DESCRIBE THE ISSUE IN DETAIL:

android.nonFinalResIds property will be enabled by default since AGP 8.0
And lint checker provides NonConstantResourceId rule to prepare behavior changes.
But NonConstantResourceId rule does not warning about constant value assign from resource ids.

STEPS TO REPRODUCE:

git clone https://github.com/ganadist/VersionCodeDemo -b nonFinalResIdReport

cd VersionCodeDemo

./gradlew :app:lintDevelopDebug

Expected Result :
When android.nonFinalResIds is enabled, kotlin compiler raised error.

echo android.nonFinalResIds=true >> gradle.properties

./gradlew :app:assembleDevelopDebug

> Task :app:compileDevelopDebugKotlin FAILED
e: app/src/main/java/com/example/myapplication/MainActivity.kt: (15, 27): Const 'val' initializer should be a constant value
> Task :app:compileDevelopDebugJavaWithJavac FAILED
app/src/main/java/com/example/myapplication/SubActivity.java:13: error: constant expression required
            case R.id.text: {
                     ^
app/src/main/java/com/example/myapplication/SubActivity.java:16: error: constant expression required
            case R.id.bottom: {

So, lint check result should be

app/src/main/java/com/example/myapplication/MainActivity.kt:15: Warning: Resource IDs will be non-final by default in Android Gradle Plugin version 8.0, avoid using them in switch case statements [NonConstantResourceId]
        val resId = R.id.text
        ~~~~~~~~~
app/src/main/java/com/example/myapplication/SubActivity.java:13: Warning: Resource IDs will be non-final by default in Android Gradle Plugin version 8.0, avoid using them in switch case statements [NonConstantResourceId]
            case R.id.text: {
                 ~~~~~~~~~
app/src/main/java/com/example/myapplication/SubActivity.java:16: Warning: Resource IDs will be non-final by default in Android Gradle Plugin version 8.0, avoid using them in switch case statements [NonConstantResourceId]
            case R.id.bottom: {
                 ~~~~~~~~~~~

   Explanation for issues of type "NonConstantResourceId":
   Avoid the usage of resource IDs where constant expressions are required.

   A future version of the Android Gradle Plugin will generate R classes with
   non-constant IDs in order to improve the performance of incremental
   compilation.

Actual result : NonConstantResourceId rule does not show warning about constants value assign from resource Ids.

app/src/main/java/com/example/myapplication/SubActivity.java:13: Warning: Resource IDs will be non-final by default in Android Gradle Plugin version 8.0, avoid using them in switch case statements [NonConstantResourceId]
            case R.id.text: {
                 ~~~~~~~~~
app/src/main/java/com/example/myapplication/SubActivity.java:16: Warning: Resource IDs will be non-final by default in Android Gradle Plugin version 8.0, avoid using them in switch case statements [NonConstantResourceId]
            case R.id.bottom: {
                 ~~~~~~~~~~~

   Explanation for issues of type "NonConstantResourceId":
   Avoid the usage of resource IDs where constant expressions are required.

   A future version of the Android Gradle Plugin will generate R classes with
   non-constant IDs in order to improve the performance of incremental
   compilation.

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Studio Build: 2021.3.1 Version of Gradle Plugin: 7.3.1
Version of Gradle: 7.5
Version of Java: OpenJDK 11/17
OS: Any