Gate the new ClassroomListActivity

app/src/main/java/org/oppia/android/app/drawer/NavigationDrawerFragmentPresenter.kt

@@ -16,6 +16,7 @@ import com.google.android.material.navigation.NavigationView
 import com.google.common.base.Optional
 import org.oppia.android.R
 import org.oppia.android.app.administratorcontrols.AdministratorControlsActivity
+import org.oppia.android.app.classroom.ClassroomListActivity
 import org.oppia.android.app.devoptions.DeveloperOptionsStarter
 import org.oppia.android.app.fragment.FragmentScope
 import org.oppia.android.app.help.HelpActivity
@@ -37,6 +38,8 @@ import org.oppia.android.domain.profile.ProfileManagementController
 import org.oppia.android.domain.topic.TopicController
 import org.oppia.android.util.data.AsyncResult
 import org.oppia.android.util.data.DataProviders.Companion.toLiveData
+import org.oppia.android.util.platformparameter.EnableMultipleClassrooms
+import org.oppia.android.util.platformparameter.PlatformParameterValue
 import org.oppia.android.util.statusbar.StatusBarColor
 import javax.inject.Inject
 
@@ -54,7 +57,8 @@ class NavigationDrawerFragmentPresenter @Inject constructor(
   private val oppiaLogger: OppiaLogger,
   private val headerViewModel: NavigationDrawerHeaderViewModel,
   private val footerViewModel: NavigationDrawerFooterViewModel,
-  private val developerOptionsStarter: Optional<DeveloperOptionsStarter>
+  private val developerOptionsStarter: Optional<DeveloperOptionsStarter>,
+  @EnableMultipleClassrooms private val enableMultipleClassrooms: PlatformParameterValue<Boolean>,
 ) : NavigationView.OnNavigationItemSelectedListener {
   private lateinit var drawerToggle: ActionBarDrawerToggle
   private lateinit var drawerLayout: DrawerLayout
@@ -233,7 +237,10 @@ class NavigationDrawerFragmentPresenter @Inject constructor(
     if (previousMenuItemId != menuItemId) {
       when (NavigationDrawerItem.valueFromNavId(menuItemId)) {
         NavigationDrawerItem.HOME -> {
-          val intent = HomeActivity.createHomeActivity(activity, internalProfileId)
+          val intent = if (enableMultipleClassrooms.value)
+            ClassroomListActivity.createClassroomListActivity(activity, internalProfileId)
+          else
+            HomeActivity.createHomeActivity(activity, internalProfileId)
           fragment.activity!!.startActivity(intent)
           drawerLayout.closeDrawers()
         }

app/src/main/java/org/oppia/android/app/mydownloads/MyDownloadsActivity.kt

@@ -5,16 +5,24 @@ import android.content.Intent
 import android.os.Bundle
 import org.oppia.android.app.activity.ActivityComponentImpl
 import org.oppia.android.app.activity.InjectableAutoLocalizedAppCompatActivity
+import org.oppia.android.app.classroom.ClassroomListActivity
 import org.oppia.android.app.drawer.NAVIGATION_PROFILE_ID_ARGUMENT_KEY
 import org.oppia.android.app.home.HomeActivity
 import org.oppia.android.app.model.ScreenName.MY_DOWNLOADS_ACTIVITY
 import org.oppia.android.util.logging.CurrentAppScreenNameIntentDecorator.decorateWithScreenName
+import org.oppia.android.util.platformparameter.EnableMultipleClassrooms
+import org.oppia.android.util.platformparameter.PlatformParameterValue
 import javax.inject.Inject
 
 /** The activity for displaying [MyDownloadsFragment]. */
 class MyDownloadsActivity : InjectableAutoLocalizedAppCompatActivity() {
   @Inject
   lateinit var myDownloadsActivityPresenter: MyDownloadsActivityPresenter
+
+  @Inject
+  @EnableMultipleClassrooms
+  lateinit var enableMultipleClassrooms: PlatformParameterValue<Boolean>
+
   private var internalProfileId: Int = -1
 
   override fun onCreate(savedInstanceState: Bundle?) {
@@ -38,7 +46,10 @@ class MyDownloadsActivity : InjectableAutoLocalizedAppCompatActivity() {
   }
 
   override fun onBackPressed() {
-    val intent = HomeActivity.createHomeActivity(this, internalProfileId)
+    val intent = if (enableMultipleClassrooms.value)
+      ClassroomListActivity.createClassroomListActivity(this, internalProfileId)
+    else
+      HomeActivity.createHomeActivity(this, internalProfileId)
     startActivity(intent)
     finish()
   }

app/src/main/java/org/oppia/android/app/profile/PinPasswordActivityPresenter.kt

@@ -7,6 +7,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.databinding.DataBindingUtil
 import androidx.fragment.app.DialogFragment
 import org.oppia.android.R
+import org.oppia.android.app.classroom.ClassroomListActivity
 import org.oppia.android.app.home.HomeActivity
 import org.oppia.android.app.model.ProfileId
 import org.oppia.android.app.translation.AppLanguageResourceHandler
@@ -17,6 +18,8 @@ import org.oppia.android.domain.profile.ProfileManagementController
 import org.oppia.android.util.accessibility.AccessibilityService
 import org.oppia.android.util.data.AsyncResult
 import org.oppia.android.util.data.DataProviders.Companion.toLiveData
+import org.oppia.android.util.platformparameter.EnableMultipleClassrooms
+import org.oppia.android.util.platformparameter.PlatformParameterValue
 import javax.inject.Inject
 import kotlin.system.exitProcess
 
@@ -30,7 +33,8 @@ class PinPasswordActivityPresenter @Inject constructor(
   private val lifecycleSafeTimerFactory: LifecycleSafeTimerFactory,
   private val pinViewModel: PinPasswordViewModel,
   private val resourceHandler: AppLanguageResourceHandler,
-  private val accessibilityService: AccessibilityService
+  private val accessibilityService: AccessibilityService,
+  @EnableMultipleClassrooms private val enableMultipleClassrooms: PlatformParameterValue<Boolean>,
 ) {
   private var profileId = -1
   private lateinit var alertDialog: AlertDialog
@@ -93,7 +97,12 @@ class PinPasswordActivityPresenter @Inject constructor(
                 activity,
                 {
                   if (it is AsyncResult.Success) {
-                    activity.startActivity((HomeActivity.createHomeActivity(activity, profileId)))
+                    activity.startActivity(
+                      if (enableMultipleClassrooms.value)
+                        ClassroomListActivity.createClassroomListActivity(activity, profileId)
+                      else
+                        HomeActivity.createHomeActivity(activity, profileId)
+                    )
                   }
                 }
               )

app/src/main/java/org/oppia/android/app/profile/ProfileChooserFragmentPresenter.kt

@@ -14,6 +14,7 @@ import androidx.lifecycle.Transformations
 import androidx.recyclerview.widget.GridLayoutManager
 import org.oppia.android.R
 import org.oppia.android.app.administratorcontrols.AdministratorControlsActivity
+import org.oppia.android.app.classroom.ClassroomListActivity
 import org.oppia.android.app.fragment.FragmentScope
 import org.oppia.android.app.home.HomeActivity
 import org.oppia.android.app.model.Profile
@@ -27,6 +28,8 @@ import org.oppia.android.domain.oppialogger.analytics.AnalyticsController
 import org.oppia.android.domain.profile.ProfileManagementController
 import org.oppia.android.util.data.AsyncResult
 import org.oppia.android.util.data.DataProviders.Companion.toLiveData
+import org.oppia.android.util.platformparameter.EnableMultipleClassrooms
+import org.oppia.android.util.platformparameter.PlatformParameterValue
 import org.oppia.android.util.statusbar.StatusBarColor
 import javax.inject.Inject
 
@@ -67,7 +70,8 @@ class ProfileChooserFragmentPresenter @Inject constructor(
   private val profileManagementController: ProfileManagementController,
   private val oppiaLogger: OppiaLogger,
   private val analyticsController: AnalyticsController,
-  private val multiTypeBuilderFactory: BindableAdapter.MultiTypeBuilder.Factory
+  private val multiTypeBuilderFactory: BindableAdapter.MultiTypeBuilder.Factory,
+  @EnableMultipleClassrooms private val enableMultipleClassrooms: PlatformParameterValue<Boolean>,
 ) {
   private lateinit var binding: ProfileChooserFragmentBinding
   val hasProfileEverBeenAddedValue = ObservableField<Boolean>(true)
@@ -175,11 +179,15 @@ class ProfileChooserFragmentPresenter @Inject constructor(
           Observer {
             if (it is AsyncResult.Success) {
               activity.startActivity(
-                (
-                  HomeActivity.createHomeActivity(
+                if (enableMultipleClassrooms.value)
+                  ClassroomListActivity.createClassroomListActivity(
                     activity,
                     model.profile.id.internalId
                   )
+                else
+                  HomeActivity.createHomeActivity(
+                    activity,
+                    model.profile.id.internalId
                   )
               )
             }