add some fragment transitions

2026-04-18 13:17:38 -04:00 · 2021-12-31 15:50:39 +01:00
parent dbcde7cf7a
commit 8d68dd5366
18 changed files with 164 additions and 69 deletions
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -115,7 +115,7 @@ dependencies {
    implementation 'androidx.core:core-ktx:1.7.0'
    implementation 'androidx.core:core-splashscreen:1.0.0-alpha02'
    implementation "androidx.activity:activity-ktx:1.4.0"
-    implementation "androidx.fragment:fragment-ktx:1.3.6"
+    implementation "androidx.fragment:fragment-ktx:1.4.0"
    implementation 'androidx.cardview:cardview:1.0.0'
    implementation 'androidx.preference:preference-ktx:1.1.1'
    implementation 'com.google.android.material:material:1.5.0-rc01'
--- a/app/src/foss/java/net/vonforst/evmap/fragment/DonateFragment.kt
+++ b/app/src/foss/java/net/vonforst/evmap/fragment/DonateFragment.kt
@@ -15,6 +15,12 @@ import net.vonforst.evmap.databinding.FragmentDonateBinding
 class DonateFragment : Fragment() {
    private lateinit var binding: FragmentDonateBinding

+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
+        returnTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+    }
+
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
@@ -27,16 +33,13 @@ class DonateFragment : Fragment() {
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        (requireActivity() as AppCompatActivity).setSupportActionBar(binding.toolbar)

-        binding.btnDonate.setOnClickListener {
-            (activity as? MapsActivity)?.openUrl(getString(R.string.paypal_link))
-        }
-    }
-
-    override fun onResume() {
-        super.onResume()
        binding.toolbar.setupWithNavController(
            findNavController(),
            (requireActivity() as MapsActivity).appBarConfiguration
        )
+
+        binding.btnDonate.setOnClickListener {
+            (activity as? MapsActivity)?.openUrl(getString(R.string.paypal_link))
+        }
    }
 }
--- a/app/src/google/java/net/vonforst/evmap/fragment/DonateFragment.kt
+++ b/app/src/google/java/net/vonforst/evmap/fragment/DonateFragment.kt
@@ -12,7 +12,9 @@ import androidx.lifecycle.Observer
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.ui.setupWithNavController
 import androidx.recyclerview.widget.LinearLayoutManager
+import com.google.android.material.color.MaterialColors
 import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.transition.MaterialSharedAxis
 import net.vonforst.evmap.MapsActivity
 import net.vonforst.evmap.R
 import net.vonforst.evmap.adapter.DonationAdapter
@@ -23,6 +25,12 @@ class DonateFragment : Fragment() {
    private lateinit var binding: FragmentDonateBinding
    private val vm: DonateViewModel by viewModels()

+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
+        returnTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+    }
+
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
@@ -31,12 +39,18 @@ class DonateFragment : Fragment() {
        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_donate, container, false)
        binding.lifecycleOwner = this
        binding.vm = vm
+
        return binding.root
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        (requireActivity() as AppCompatActivity).setSupportActionBar(binding.toolbar)

+        binding.toolbar.setupWithNavController(
+            findNavController(),
+            (requireActivity() as MapsActivity).appBarConfiguration
+        )
+
        binding.productsList.apply {
            adapter = DonationAdapter().apply {
                onClickListener = {
@@ -56,13 +70,8 @@ class DonateFragment : Fragment() {
        vm.purchaseFailed.observe(viewLifecycleOwner, Observer {
            Snackbar.make(view, R.string.donation_failed, Snackbar.LENGTH_LONG).show()
        })
-    }

-    override fun onResume() {
-        super.onResume()
-        binding.toolbar.setupWithNavController(
-            findNavController(),
-            (requireActivity() as MapsActivity).appBarConfiguration
-        )
+        // Workaround for AndroidX bug: https://github.com/material-components/material-components-android/issues/1984
+        view.setBackgroundColor(MaterialColors.getColor(view, android.R.attr.windowBackground))
    }
 }
--- a/app/src/main/java/net/vonforst/evmap/MapsActivity.kt
+++ b/app/src/main/java/net/vonforst/evmap/MapsActivity.kt
@@ -19,7 +19,6 @@ import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.drawerlayout.widget.DrawerLayout
 import androidx.navigation.NavController
-import androidx.navigation.findNavController
 import androidx.navigation.fragment.FragmentNavigator
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.setupWithNavController
@@ -28,8 +27,10 @@ import androidx.preference.PreferenceFragmentCompat
 import com.car2go.maps.model.LatLng
 import com.google.android.material.navigation.NavigationView
 import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.transition.MaterialSharedAxis
 import net.vonforst.evmap.fragment.MapFragmentArgs
 import net.vonforst.evmap.model.ChargeLocation
+import net.vonforst.evmap.navigation.NavHostFragment
 import net.vonforst.evmap.storage.PreferenceDataSource
 import net.vonforst.evmap.utils.LocaleContextWrapper
 import net.vonforst.evmap.utils.getLocationFromIntent
@@ -66,8 +67,6 @@ class MapsActivity : AppCompatActivity(),

        setContentView(R.layout.activity_maps)

-        navController = findNavController(R.id.nav_host_fragment)
-        val navGraph = navController.navInflater.inflate(R.navigation.nav_graph)
        appBarConfiguration = AppBarConfiguration(
            setOf(
                R.id.map,
@@ -77,6 +76,10 @@ class MapsActivity : AppCompatActivity(),
            ),
            findViewById<DrawerLayout>(R.id.drawer_layout)
        )
+        val navHostFragment =
+            supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment
+        navController = navHostFragment.navController
+        val navGraph = navController.navInflater.inflate(R.navigation.nav_graph)
        val navView = findViewById<NavigationView>(R.id.nav_view)
        navView.setupWithNavController(navController)

@@ -233,6 +236,9 @@ class MapsActivity : AppCompatActivity(),
        caller: PreferenceFragmentCompat,
        pref: Preference
    ): Boolean {
+        caller.exitTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
+        caller.reenterTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+
        // Identify the Navigation Destination
        val navDestination = navController.graph
            .find { target -> target is FragmentNavigator.Destination && pref.fragment == target.className }
--- a/app/src/main/java/net/vonforst/evmap/fragment/ChargepriceFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/ChargepriceFragment.kt
@@ -82,6 +82,11 @@ class ChargepriceFragment : DialogFragment() {
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

+        binding.toolbar.setupWithNavController(
+            findNavController(),
+            (requireActivity() as MapsActivity).appBarConfiguration
+        )
+
        val fragmentArgs: ChargepriceFragmentArgs by navArgs()
        val charger = fragmentArgs.charger
        val dataSource = fragmentArgs.dataSource
@@ -211,12 +216,4 @@ class ChargepriceFragment : DialogFragment() {
        }
    }

-    override fun onResume() {
-        super.onResume()
-        binding.toolbar.setupWithNavController(
-            findNavController(),
-            (requireActivity() as MapsActivity).appBarConfiguration
-        )
-    }
-
 }
--- a/app/src/main/java/net/vonforst/evmap/fragment/FavoritesFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/FavoritesFragment.kt
@@ -17,7 +17,9 @@ import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.car2go.maps.model.LatLng
+import com.google.android.material.color.MaterialColors
 import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.transition.MaterialFadeThrough
 import com.mapzen.android.lost.api.LocationServices
 import com.mapzen.android.lost.api.LostApiClient
 import net.vonforst.evmap.MapsActivity
@@ -51,6 +53,9 @@ class FavoritesFragment : Fragment(), LostApiClient.ConnectionCallbacks {
        super.onCreate(savedInstanceState)
        locationClient = LostApiClient.Builder(requireContext())
            .addConnectionCallbacks(this).build()
+
+        enterTransition = MaterialFadeThrough()
+        exitTransition = MaterialFadeThrough()
    }

    override fun onCreateView(
@@ -70,6 +75,13 @@ class FavoritesFragment : Fragment(), LostApiClient.ConnectionCallbacks {

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
+        // Workaround for AndroidX bug: https://github.com/material-components/material-components-android/issues/1984
+        view.setBackgroundColor(MaterialColors.getColor(view, android.R.attr.windowBackground))
+
+        binding.toolbar.setupWithNavController(
+            findNavController(),
+            (requireActivity() as MapsActivity).appBarConfiguration
+        )

        adapter = FavoritesAdapter(onDelete = {
            delete(it.charger)
@@ -254,9 +266,5 @@ class FavoritesFragment : Fragment(), LostApiClient.ConnectionCallbacks {

    override fun onResume() {
        super.onResume()
-        binding.toolbar.setupWithNavController(
-            findNavController(),
-            (requireActivity() as MapsActivity).appBarConfiguration
-        )
    }
 }
--- a/app/src/main/java/net/vonforst/evmap/fragment/FilterFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/FilterFragment.kt
@@ -11,6 +11,8 @@ import androidx.navigation.fragment.findNavController
 import androidx.navigation.ui.setupWithNavController
 import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.LinearLayoutManager
+import com.google.android.material.color.MaterialColors
+import com.google.android.material.transition.MaterialSharedAxis
 import kotlinx.coroutines.launch
 import net.vonforst.evmap.MapsActivity
 import net.vonforst.evmap.R
@@ -24,6 +26,12 @@ class FilterFragment : Fragment() {
    private lateinit var binding: FragmentFilterBinding
    private val vm: FilterViewModel by viewModels()

+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
+        returnTransition = MaterialSharedAxis(MaterialSharedAxis.Z, false)
+    }
+
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
@@ -43,6 +51,17 @@ class FilterFragment : Fragment() {
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        (requireActivity() as AppCompatActivity).setSupportActionBar(binding.toolbar)

+        binding.toolbar.setupWithNavController(
+            findNavController(),
+            (requireActivity() as MapsActivity).appBarConfiguration
+        )
+
+        vm.filterProfile.observe(viewLifecycleOwner) {
+            if (it != null) {
+                binding.toolbar.title = getString(R.string.edit_filter_profile, it.name)
+            }
+        }
+
        binding.filtersList.apply {
            adapter = FiltersAdapter()
            layoutManager =
@@ -57,6 +76,9 @@ class FilterFragment : Fragment() {
        binding.toolbar.setNavigationOnClickListener {
            findNavController().popBackStack()
        }
+
+        // Workaround for AndroidX bug: https://github.com/material-components/material-components-android/issues/1984
+        view.setBackgroundColor(MaterialColors.getColor(view, android.R.attr.windowBackground))
    }

    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
@@ -108,18 +130,4 @@ class FilterFragment : Fragment() {
                }
        }
    }
-
-    override fun onResume() {
-        super.onResume()
-        binding.toolbar.setupWithNavController(
-            findNavController(),
-            (requireActivity() as MapsActivity).appBarConfiguration
-        )
-
-        vm.filterProfile.observe(viewLifecycleOwner) {
-            if (it != null) {
-                binding.toolbar.title = getString(R.string.edit_filter_profile, it.name)
-            }
-        }
-    }
 }
--- a/app/src/main/java/net/vonforst/evmap/fragment/FilterProfilesFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/FilterProfilesFragment.kt
@@ -17,7 +17,9 @@ import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
+import com.google.android.material.color.MaterialColors
 import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.transition.MaterialSharedAxis
 import kotlinx.coroutines.launch
 import net.vonforst.evmap.MapsActivity
 import net.vonforst.evmap.R
@@ -43,6 +45,12 @@ class FilterProfilesFragment : Fragment() {
    private var deleteSnackbar: Snackbar? = null
    private var toDelete: FilterProfile? = null

+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
+        returnTransition = MaterialSharedAxis(MaterialSharedAxis.Z, false)
+    }
+
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
@@ -58,6 +66,11 @@ class FilterProfilesFragment : Fragment() {
    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        (requireActivity() as AppCompatActivity).setSupportActionBar(binding.toolbar)

+        binding.toolbar.setupWithNavController(
+            findNavController(),
+            (requireActivity() as MapsActivity).appBarConfiguration
+        )
+
        touchHelper = ItemTouchHelper(object : ItemTouchHelper.SimpleCallback(
            ItemTouchHelper.UP or ItemTouchHelper.DOWN,
            ItemTouchHelper.RIGHT or ItemTouchHelper.LEFT
@@ -201,14 +214,9 @@ class FilterProfilesFragment : Fragment() {
        binding.toolbar.setNavigationOnClickListener {
            findNavController().popBackStack()
        }
-    }

-    override fun onResume() {
-        super.onResume()
-        binding.toolbar.setupWithNavController(
-            findNavController(),
-            (requireActivity() as MapsActivity).appBarConfiguration
-        )
+        // Workaround for AndroidX bug: https://github.com/material-components/material-components-android/issues/1984
+        view.setBackgroundColor(MaterialColors.getColor(view, android.R.attr.windowBackground))
    }

    fun delete(fp: FilterProfile) {
--- a/app/src/main/java/net/vonforst/evmap/fragment/MapFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/MapFragment.kt
@@ -53,6 +53,8 @@ import com.car2go.maps.model.MarkerOptions
 import com.google.android.material.snackbar.Snackbar
 import com.google.android.material.transition.MaterialArcMotion
 import com.google.android.material.transition.MaterialContainerTransform
+import com.google.android.material.transition.MaterialFadeThrough
+import com.google.android.material.transition.MaterialSharedAxis
 import com.mahc.custombottomsheetbehavior.BottomSheetBehaviorGoogleMapsLike
 import com.mahc.custombottomsheetbehavior.BottomSheetBehaviorGoogleMapsLike.STATE_COLLAPSED
 import com.mahc.custombottomsheetbehavior.BottomSheetBehaviorGoogleMapsLike.STATE_HIDDEN
@@ -147,6 +149,9 @@ class MapFragment : Fragment(), OnMapReadyCallback, MapsActivity.FragmentCallbac
            .build()
        locationClient.connect()
        clusterIconGenerator = ClusterIconGenerator(requireContext())
+
+        enterTransition = MaterialFadeThrough()
+        exitTransition = MaterialFadeThrough()
    }

    override fun onCreateView(
@@ -238,6 +243,11 @@ class MapFragment : Fragment(), OnMapReadyCallback, MapsActivity.FragmentCallbac
        setupAdapters()
        (activity as? MapsActivity)?.setSupportActionBar(binding.toolbar)

+        binding.toolbar.setupWithNavController(
+            findNavController(),
+            (requireActivity() as MapsActivity).appBarConfiguration
+        )
+
        if (prefs.appStartCounter > 5 && !prefs.opensourceDonationsDialogShown) {
            try {
                findNavController().navigate(R.id.action_map_to_opensource_donations)
@@ -287,12 +297,6 @@ class MapFragment : Fragment(), OnMapReadyCallback, MapsActivity.FragmentCallbac
        val hostActivity = activity as? MapsActivity ?: return
        hostActivity.fragmentCallback = this

-        val navController = findNavController()
-        binding.toolbar.setupWithNavController(
-            navController,
-            (requireActivity() as MapsActivity).appBarConfiguration
-        )
-
        vm.reloadPrefs()
        if (requestingLocationUpdates && requireContext().checkAnyLocationPermission()
            && locationClient.isConnected
@@ -1115,6 +1119,8 @@ class MapFragment : Fragment(), OnMapReadyCallback, MapsActivity.FragmentCallbac
            popup.setOnMenuItemClickListener {
                when (it.itemId) {
                    R.id.menu_edit_filters -> {
+                        exitTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
+                        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.Z, false)
                        lifecycleScope.launch {
                            vm.copyFiltersToCustom()
                            requireView().findNavController().navigate(
@@ -1124,6 +1130,8 @@ class MapFragment : Fragment(), OnMapReadyCallback, MapsActivity.FragmentCallbac
                        true
                    }
                    R.id.menu_manage_filter_profiles -> {
+                        exitTransition = MaterialSharedAxis(MaterialSharedAxis.Z, true)
+                        reenterTransition = MaterialSharedAxis(MaterialSharedAxis.Z, false)
                        requireView().findNavController().navigate(
                            R.id.action_map_to_filterProfilesFragment
                        )
--- a/app/src/main/java/net/vonforst/evmap/fragment/preference/AboutFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/preference/AboutFragment.kt
@@ -1,11 +1,15 @@
 package net.vonforst.evmap.fragment.preference

 import android.os.Bundle
+import android.view.View
 import androidx.appcompat.widget.Toolbar
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.ui.setupWithNavController
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
+import com.google.android.material.color.MaterialColors
+import com.google.android.material.transition.MaterialFadeThrough
+import com.google.android.material.transition.MaterialSharedAxis
 import com.mikepenz.aboutlibraries.LibsBuilder
 import net.vonforst.evmap.BuildConfig
 import net.vonforst.evmap.MapsActivity
@@ -13,14 +17,23 @@ import net.vonforst.evmap.R


 class AboutFragment : PreferenceFragmentCompat() {
-    override fun onResume() {
-        super.onResume()
-        val toolbar = requireView().findViewById(R.id.toolbar) as Toolbar
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enterTransition = MaterialFadeThrough()
+        exitTransition = MaterialFadeThrough()
+    }

+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        val toolbar = view.findViewById<Toolbar>(R.id.toolbar)
        toolbar.setupWithNavController(
            findNavController(),
            (requireActivity() as MapsActivity).appBarConfiguration
        )
+
+        // Workaround for AndroidX bug: https://github.com/material-components/material-components-android/issues/1984
+        view.setBackgroundColor(MaterialColors.getColor(view, android.R.attr.windowBackground))
    }

    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
@@ -54,6 +67,8 @@ class AboutFragment : PreferenceFragmentCompat() {
                true
            }
            "donate" -> {
+                exitTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
+                reenterTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
                findNavController().navigate(R.id.action_about_to_donateFragment)
                true
            }
--- a/app/src/main/java/net/vonforst/evmap/fragment/preference/BaseSettingsFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/preference/BaseSettingsFragment.kt
@@ -7,6 +7,9 @@ import androidx.appcompat.widget.Toolbar
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.ui.setupWithNavController
 import androidx.preference.PreferenceFragmentCompat
+import com.google.android.material.color.MaterialColors
+import com.google.android.material.transition.MaterialFadeThrough
+import com.google.android.material.transition.MaterialSharedAxis
 import net.vonforst.evmap.MapsActivity
 import net.vonforst.evmap.R
 import net.vonforst.evmap.storage.PreferenceDataSource
@@ -14,22 +17,38 @@ import net.vonforst.evmap.storage.PreferenceDataSource
 abstract class BaseSettingsFragment : PreferenceFragmentCompat(),
    SharedPreferences.OnSharedPreferenceChangeListener {
    protected lateinit var prefs: PreferenceDataSource
+    protected abstract val isTopLevel: Boolean
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        if (isTopLevel) {
+            enterTransition = MaterialFadeThrough()
+            exitTransition = MaterialFadeThrough()
+        } else {
+            enterTransition = MaterialSharedAxis(MaterialSharedAxis.X, true)
+            returnTransition = MaterialSharedAxis(MaterialSharedAxis.X, false)
+        }
+    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
+
+        val toolbar = view.findViewById<Toolbar>(R.id.toolbar)
+        toolbar.setupWithNavController(
+            findNavController(),
+            (requireActivity() as MapsActivity).appBarConfiguration
+        )
+
        prefs = PreferenceDataSource(requireContext())
+
+        // Workaround for AndroidX bug: https://github.com/material-components/material-components-android/issues/1984
+        view.setBackgroundColor(MaterialColors.getColor(view, android.R.attr.windowBackground))
    }

    override fun onResume() {
        super.onResume()
        preferenceManager.sharedPreferences.registerOnSharedPreferenceChangeListener(this)
-
-        val navController = findNavController()
-        val toolbar = requireView().findViewById(R.id.toolbar) as Toolbar
-        toolbar.setupWithNavController(
-            navController,
-            (requireActivity() as MapsActivity).appBarConfiguration
-        )
    }

    override fun onPause() {
--- a/app/src/main/java/net/vonforst/evmap/fragment/preference/ChargepriceSettingsFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/preference/ChargepriceSettingsFragment.kt
@@ -10,6 +10,8 @@ import net.vonforst.evmap.viewmodel.SettingsViewModel
 import net.vonforst.evmap.viewmodel.viewModelFactory

 class ChargepriceSettingsFragment : BaseSettingsFragment() {
+    override val isTopLevel = false
+
    private val vm: SettingsViewModel by viewModels(factoryProducer = {
        viewModelFactory {
            SettingsViewModel(
--- a/app/src/main/java/net/vonforst/evmap/fragment/preference/DataSettingsFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/preference/DataSettingsFragment.kt
@@ -11,6 +11,8 @@ import net.vonforst.evmap.viewmodel.SettingsViewModel
 import net.vonforst.evmap.viewmodel.viewModelFactory

 class DataSettingsFragment : BaseSettingsFragment() {
+    override val isTopLevel = false
+
    private val vm: SettingsViewModel by viewModels(factoryProducer = {
        viewModelFactory {
            SettingsViewModel(
--- a/app/src/main/java/net/vonforst/evmap/fragment/preference/SettingsFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/preference/SettingsFragment.kt
@@ -7,6 +7,7 @@ import net.vonforst.evmap.R


 class SettingsFragment : BaseSettingsFragment() {
+    override val isTopLevel = true

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
--- a/app/src/main/java/net/vonforst/evmap/fragment/preference/UiSettingsFragment.kt
+++ b/app/src/main/java/net/vonforst/evmap/fragment/preference/UiSettingsFragment.kt
@@ -6,6 +6,8 @@ import net.vonforst.evmap.R
 import net.vonforst.evmap.ui.updateNightMode

 class UiSettingsFragment : BaseSettingsFragment() {
+    override val isTopLevel = false
+
    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
        setPreferencesFromResource(R.xml.settings_ui, rootKey)
    }
--- a/app/src/main/res/layout/activity_maps.xml
+++ b/app/src/main/res/layout/activity_maps.xml
@@ -5,7 +5,7 @@
    android:layout_width="match_parent"
    android:layout_height="match_parent">

-    <fragment
+    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/nav_host_fragment"
        android:name="net.vonforst.evmap.navigation.NavHostFragment"
        android:layout_height="match_parent"
--- a/app/src/main/res/layout/fragment_filter_profiles.xml
+++ b/app/src/main/res/layout/fragment_filter_profiles.xml
@@ -29,7 +29,7 @@

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
-                android:layout_width="wrap_content"
+                android:layout_width="match_parent"
                android:layout_height="wrap_content" />

        </com.google.android.material.appbar.AppBarLayout>
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -25,6 +25,13 @@
        <item name="windowSplashScreenBackground">@color/background</item>
        <item name="windowSplashScreenAnimationDuration">999</item>
        <item name="postSplashScreenTheme">@style/AppTheme</item>
+
+        <!-- Workarounds for crashes when switching fragments after the app has been rotated.
+         This is needed because Theme.SplashScreen is not a MaterialComponents theme. -->
+        <item name="preferenceTheme">@style/AppTheme.Preference</item>
+        <item name="viewInflaterClass">
+            com.google.android.material.theme.MaterialComponentsViewInflater
+        </item>
    </style>

    <style name="AppTheme.LaunchScreen" parent="AppTheme.LaunchScreen.Base">