Fixed empty fragment when closing foldable device

app/src/main/java/org/linphone/activities/main/chat/fragments/MasterChatRoomsFragment.kt

@@ -25,6 +25,7 @@ import android.view.View
 import androidx.core.content.ContextCompat
 import androidx.core.view.doOnPreDraw
 import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.NavHostFragment
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -101,6 +102,13 @@ class MasterChatRoomsFragment : MasterFragment<ChatRoomMasterFragmentBinding, Ch
         sharedViewModel.layoutChangedEvent.observe(viewLifecycleOwner, {
             it.consume {
                 sharedViewModel.canSlidingPaneBeClosed.value = binding.slidingPane.isSlideable
+                if (binding.slidingPane.isSlideable) {
+                    val navHostFragment = childFragmentManager.findFragmentById(R.id.chat_nav_container) as NavHostFragment
+                    if (navHostFragment.navController.currentDestination?.id == R.id.emptyChatFragment) {
+                        Log.i("[Chat] Foldable device has been folded, closing side pane with empty fragment")
+                        binding.slidingPane.closePane()
+                    }
+                }
             }
         })
         binding.slidingPane.lockMode = SlidingPaneLayout.LOCK_MODE_LOCKED

app/src/main/java/org/linphone/activities/main/contact/fragments/MasterContactsFragment.kt

@@ -26,6 +26,7 @@ import android.view.View
 import androidx.core.content.ContextCompat
 import androidx.core.view.doOnPreDraw
 import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.NavHostFragment
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -89,6 +90,13 @@ class MasterContactsFragment : MasterFragment<ContactMasterFragmentBinding, Cont
         sharedViewModel.layoutChangedEvent.observe(viewLifecycleOwner, {
             it.consume {
                 sharedViewModel.canSlidingPaneBeClosed.value = binding.slidingPane.isSlideable
+                if (binding.slidingPane.isSlideable) {
+                    val navHostFragment = childFragmentManager.findFragmentById(R.id.contacts_nav_container) as NavHostFragment
+                    if (navHostFragment.navController.currentDestination?.id == R.id.emptyContactFragment) {
+                        Log.i("[Contacts] Foldable device has been folded, closing side pane with empty fragment")
+                        binding.slidingPane.closePane()
+                    }
+                }
             }
         })
         binding.slidingPane.lockMode = SlidingPaneLayout.LOCK_MODE_LOCKED

app/src/main/java/org/linphone/activities/main/history/fragments/MasterCallLogsFragment.kt

@@ -25,6 +25,7 @@ import android.view.View
 import androidx.core.content.ContextCompat
 import androidx.core.view.doOnPreDraw
 import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.NavHostFragment
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -92,6 +93,13 @@ class MasterCallLogsFragment : MasterFragment<HistoryMasterFragmentBinding, Call
         sharedViewModel.layoutChangedEvent.observe(viewLifecycleOwner, {
             it.consume {
                 sharedViewModel.canSlidingPaneBeClosed.value = binding.slidingPane.isSlideable
+                if (binding.slidingPane.isSlideable) {
+                    val navHostFragment = childFragmentManager.findFragmentById(R.id.history_nav_container) as NavHostFragment
+                    if (navHostFragment.navController.currentDestination?.id == R.id.emptyCallHistoryFragment) {
+                        Log.i("[History] Foldable device has been folded, closing side pane with empty fragment")
+                        binding.slidingPane.closePane()
+                    }
+                }
             }
         })
         binding.slidingPane.lockMode = SlidingPaneLayout.LOCK_MODE_LOCKED

app/src/main/java/org/linphone/activities/main/settings/fragments/SettingsFragment.kt

@@ -23,6 +23,7 @@ import android.os.Bundle
 import android.view.View
 import androidx.core.view.doOnPreDraw
 import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.fragment.NavHostFragment
 import androidx.slidingpanelayout.widget.SlidingPaneLayout
 import org.linphone.R
 import org.linphone.activities.*
@@ -66,6 +67,13 @@ class SettingsFragment : SecureFragment<SettingsFragmentBinding>() {
         sharedViewModel.layoutChangedEvent.observe(viewLifecycleOwner, {
             it.consume {
                 sharedViewModel.canSlidingPaneBeClosed.value = binding.slidingPane.isSlideable
+                if (binding.slidingPane.isSlideable) {
+                    val navHostFragment = childFragmentManager.findFragmentById(R.id.settings_nav_container) as NavHostFragment
+                    if (navHostFragment.navController.currentDestination?.id == R.id.emptySettingsFragment) {
+                        Log.i("[Settings] Foldable device has been folded, closing side pane with empty fragment")
+                        binding.slidingPane.closePane()
+                    }
+                }
             }
         })
         binding.slidingPane.lockMode = SlidingPaneLayout.LOCK_MODE_LOCKED