Android: exclude the main apk deps from the test apk

example/thirdparty/android-compose-samples/build.mill

@@ -273,7 +273,6 @@ object Jetchat extends mill.api.Module {
       mvn"org.jetbrains.kotlinx:kotlinx-coroutines-android:1.10.2",
       mvn"androidx.activity:activity-compose:1.10.1",
       mvn"androidx.core:core-ktx:1.16.0",
-      mvn"androidx.appcompat:appcompat:1.7.0",
       mvn"androidx.compose.runtime:runtime-livedata",
       mvn"androidx.lifecycle:lifecycle-viewmodel-compose:2.9.0",
       mvn"androidx.lifecycle:lifecycle-runtime-compose:2.9.0",
@@ -288,8 +287,7 @@ object Jetchat extends mill.api.Module {
       mvn"androidx.databinding:viewbinding:8.13.0",
       mvn"androidx.compose.ui:ui-tooling",
       mvn"androidx.compose.ui:ui-tooling-preview",
-      mvn"androidx.compose.ui:ui-test-manifest",
-      mvn"com.google.android.material:material:1.6.0"
+      mvn"androidx.compose.ui:ui-test-manifest"
     )
 
     def androidSdkModule = mill.api.ModuleRef(androidSdkModule0)
@@ -298,12 +296,6 @@ object Jetchat extends mill.api.Module {
 
     def androidMinSdk = Versions.androidMinSdk
 
-    /*
-     * FIXME Currently broken with
-     * Message 2) profileScreen_back_conversationScreen(com.example.compose.jetchat.NavigationTest)
-     * android.content.res.Resources$NotFoundException: String resource ID #0x7f0c002b
-     * Message android.content.res.Resources$NotFoundException: String resource ID #0x7f0c002b
-     */
     object androidTest extends AndroidAppKotlinInstrumentedTests, AndroidR8AppModule {
       override def bomMvnDeps = super.mvnDeps() ++ Seq(
         mvn"androidx.compose:compose-bom:2025.08.00"
@@ -317,9 +309,6 @@ object Jetchat extends mill.api.Module {
         true
       }
 
-      // FIXME: R8 should compile without missing classes errors
-      override def androidR8Args = Seq("--map-diagnostics", "error", "warning")
-
       def mvnDeps = super.mvnDeps() ++ Seq(
         mvn"junit:junit:4.13.2",
         mvn"androidx.test:core:1.6.1",
@@ -330,10 +319,8 @@ object Jetchat extends mill.api.Module {
         mvn"org.jetbrains.kotlinx:kotlinx-coroutines-test:1.10.2",
         mvn"androidx.compose.ui:ui-test",
         mvn"androidx.compose.ui:ui-test-junit4",
-        mvn"androidx.collection:collection-ktx:1.5.0",
-        mvn"androidx.savedstate:savedstate-ktx:1.3.0",
-        mvn"androidx.appcompat:appcompat:1.7.0",
-        mvn"androidx.lifecycle:lifecycle-viewmodel-compose:2.9.0"
+        // FIXME temporary workaround to avoid linking error
+        mvn"androidx.appcompat:appcompat:1.7.0"
       )
 
     }

example/thirdparty/androidtodo/build.mill

@@ -67,7 +67,6 @@ object app
 
   def mvnDeps: T[Seq[Dep]] = super.mvnDeps() ++ Seq(
     mvn"androidx.core:core-ktx:1.15.0",
-    mvn"androidx.appcompat:appcompat:1.7.0",
     mvn"androidx.annotation:annotation:1.9.1",
     mvn"org.jetbrains.kotlinx:kotlinx-coroutines-android:1.9.0",
     mvn"com.jakewharton.timber:timber:5.0.1",
@@ -145,7 +144,7 @@ object app
 
   object androidTest
       extends AndroidAppKotlinInstrumentedTests,
-        AndroidR8AppModule,
+        AndroidR8InstrumentedTestsModule,
         AndroidHiltSupport {
 
     def moduleDeps = super.moduleDeps ++ Seq(`shared-test`)
@@ -164,7 +163,6 @@ object app
     }
 
     override def androidProjectProguardFiles = Task.Sources(
-      "proguard-rules.pro",
       "proguardTest-rules.pro"
     )
     override def androidDefaultProguardFileNames: Task[Seq[String]] = Task.Anon {
@@ -184,6 +182,7 @@ object app
       // Dependencies for Android unit tests
       mvn"junit:junit:4.13.2",
       mvn"org.jetbrains.kotlinx:kotlinx-coroutines-test:1.9.0",
+      mvn"androidx.appcompat:appcompat:1.7.0",
       // AndroidX Test - Instrumented testing
       mvn"androidx.test:core-ktx:1.6.1",
       mvn"androidx.test.ext:junit-ktx:1.2.1",

libs/androidlib/src/mill/androidlib/AndroidAppModule.scala

@@ -12,13 +12,14 @@ import mill.javalib.*
 import os.{Path, RelPath, zip}
 import os.RelPath.stringRelPathValidated
 import upickle.*
-import scala.concurrent.duration.*
 
+import scala.concurrent.duration.*
 import scala.jdk.OptionConverters.RichOptional
 import scala.xml.*
 import mill.api.daemon.internal.bsp.BspBuildTarget
 import mill.api.daemon.internal.EvaluatorApi
 import mill.javalib.testrunner.TestResult
+
 import scala.util.Properties.isWin
 
 /**
@@ -134,12 +135,13 @@ trait AndroidAppModule extends AndroidModule { outer =>
   )
 
   /**
-   * Collect files from META-INF folder of classes.jar (not META-INF of aar in case of Android library).
+   * Collect files from META-INF folder of [[androidPackagedDeps]] (not META-INF of aar in case of Android library).
+   * to include in the apk
    */
   def androidLibsClassesJarMetaInf: T[Seq[PathRef]] = Task {
     // ^ not the best name for the method, but this is to distinguish between META-INF of aar and META-INF
     // of classes.jar included in aar
-    compileClasspath()
+    androidPackagedDeps()
       .filter(ref =>
         ref.path.ext == "jar" &&
           ref != androidSdkModule().androidJarPath()
@@ -178,7 +180,6 @@ trait AndroidAppModule extends AndroidModule { outer =>
         }
       })
       .map(PathRef(_))
-      .toSeq
   }
 
   /**
@@ -189,7 +190,7 @@ trait AndroidAppModule extends AndroidModule { outer =>
   def androidPackageableExtraFiles: T[Seq[AndroidPackageableExtraFile]] =
     Task { Seq.empty[AndroidPackageableExtraFile] }
 
-  def androidPackageMetaInfoFiles: T[Seq[AndroidPackageableExtraFile]] = Task {
+  def androidPackagedMetaInfFiles: T[Seq[AndroidPackageableExtraFile]] = Task {
     def metaInfRoot(p: os.Path): os.Path = {
       var current = p
       while (!current.endsWith(os.rel / "META-INF")) {
@@ -239,7 +240,7 @@ trait AndroidAppModule extends AndroidModule { outer =>
         (androidPackageableExtraFile.source.path, androidPackageableExtraFile.destination.asSubPath)
       )
 
-    val metaInf = androidPackageMetaInfoFiles().map(asZipSource)
+    val metaInf = androidPackagedMetaInfFiles().map(asZipSource)
 
     val nativeDeps = androidPackageableNativeDeps().map(asZipSource)
 
@@ -894,9 +895,6 @@ trait AndroidAppModule extends AndroidModule { outer =>
 
     override def androidIsDebug: T[Boolean] = Task { true }
 
-    override def moduleDeps: Seq[JavaModule] = Seq.empty
-    override def compileModuleDeps: Seq[JavaModule] = Seq(outer)
-
     override def resolutionParams: Task[ResolutionParams] = Task.Anon(outer.resolutionParams())
 
     override def androidApplicationId: String = s"${outer.androidApplicationId}.test"
@@ -962,7 +960,7 @@ trait AndroidAppModule extends AndroidModule { outer =>
     }
 
     private def androidxTestManifests: Task[Seq[PathRef]] = Task {
-      androidUnpackArchives().flatMap {
+      androidUnpackRunArchives().flatMap {
         unpackedArchive =>
           unpackedArchive.manifest.map(_.path)
       }.filter {
@@ -1040,8 +1038,8 @@ trait AndroidAppModule extends AndroidModule { outer =>
       val device = androidTestInstall().apply()
 
       val instrumentOutput = os.proc(
-        (
-          androidSdkModule().adbExe().path,
+        Seq(
+          androidSdkModule().adbExe().path.toString,
           "-s",
           device,
           "shell",
@@ -1084,10 +1082,6 @@ trait AndroidAppModule extends AndroidModule { outer =>
         .map(PathRef(_))
     }
 
-    override def androidPackagedDeps: T[Seq[PathRef]] = Task {
-      androidResolvedRunMvnDeps()
-    }
-
     /**
      * The instrumented tests are packaged with testClasspath which already contains the
      * user compiled classes

libs/androidlib/src/mill/androidlib/AndroidModule.scala

@@ -525,7 +525,7 @@ trait AndroidModule extends JavaModule { outer =>
           sources = androidLibsRClasses().map(_.path),
           compileClasspath = Seq.empty,
           javacOptions = jOpts.compiler,
-          incrementalCompilation = zincIncrementalCompilation()
+          incrementalCompilation = true
         ),
         javaHome = javaHome().map(_.path),
         javaRuntimeOptions = jOpts.runtime,