Resolve namespace issues for compatibility with Gradle 8.0 and above. * In compliance with the requirement to specify a namespace for each module, we have eliminated package names from manifests and introduced namespace declarations in the Gradle files. * Considering the presence of multiple apps in the custom app, we configured the namespace during the creation of product flavors. * To enhance clarity and understanding, comprehensive comments have been added.

app/build.gradle.kts

@@ -20,6 +20,9 @@ fun generateVersionName() = "${Config.versionMajor}.${Config.versionMinor}.${Con
 val apkPrefix get() = System.getenv("TAG") ?: "kiwix"
 
 android {
+  // Added namespace in response to Gradle 8.0 and above.
+  // This is now specified in the Gradle configuration instead of declaring
+  // it directly in the AndroidManifest file.
   namespace = "org.kiwix.kiwixmobile"
   defaultConfig {
     base.archivesName.set(apkPrefix)

buildSrc/src/main/kotlin/plugin/AllProjectConfigurer.kt

@@ -43,9 +43,18 @@ class AllProjectConfigurer {
     target.plugins.apply("androidx.navigation.safeargs")
   }
 
-  fun configureBaseExtension(target: Project) {
+  fun configureBaseExtension(target: Project, isLibrary: Boolean) {
     target.configureExtension<BaseExtension> {
-      namespace = ""
+      // The namespace cannot be directly set in `LibraryExtension`.
+      // The core module is configured as a library for both Kiwix and custom apps.
+      // Therefore, we set the namespace in `BaseExtension` for the core module,
+      // based on the boolean value of `isLibrary`. This value is passed from the
+      // `KiwixConfigurationPlugin`. If the current plugin is `LibraryPlugin`,
+      // indicating it is the core module, then this value will be true,
+      // and we set the namespace accordingly.
+      if (isLibrary) {
+        namespace = "org.kiwix.kiwixmobile.core"
+      }
       setCompileSdkVersion(Config.compileSdk)
       defaultConfig {
         minSdk = Config.minSdk

buildSrc/src/main/kotlin/plugin/KiwixConfigurationPlugin.kt

@@ -33,10 +33,10 @@ class KiwixConfigurationPlugin : Plugin<Project> {
     target.plugins.all {
       when (this) {
         is LibraryPlugin -> {
-          doDefaultConfiguration(target)
+          doDefaultConfiguration(target, true)
         }
         is AppPlugin -> {
-          doDefaultConfiguration(target)
+          doDefaultConfiguration(target, false)
           appConfigurer.configure(target)
         }
       }
@@ -47,8 +47,8 @@ class KiwixConfigurationPlugin : Plugin<Project> {
     allProjectConfigurer.configureJacoco(target)
   }
 
-  private fun doDefaultConfiguration(target: Project) {
-    allProjectConfigurer.configureBaseExtension(target)
+  private fun doDefaultConfiguration(target: Project, isLibrary: Boolean) {
+    allProjectConfigurer.configureBaseExtension(target, isLibrary)
     allProjectConfigurer.configureCommonExtension(target)
   }
 }

custom/build.gradle.kts

@@ -30,6 +30,10 @@ android {
   productFlavors.apply {
     CustomApps.createDynamically(project.file("src"), this)
     all {
+      // Added namespace for every custom app to make it compatible with gradle 8.0 and above.
+      // This is now specified in the Gradle configuration instead of declaring
+      // it directly in the AndroidManifest file.
+      namespace = "org.kiwix.kiwixcustom$name"
       File("$projectDir/src", "$name/$name.zim").let {
         createDownloadTask(it)
         createPublishApkWithExpansionTask(it, applicationVariants)

custom/src/main/AndroidManifest.xml

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-  xmlns:tools="http://schemas.android.com/tools"
-  package="org.kiwix.kiwixmobile.custom">
+  xmlns:tools="http://schemas.android.com/tools">
 
 
   <application