diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
index 4f6d329c07..a7c2100bec 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
@@ -4,9 +4,9 @@ import android.app.Service
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.core.content.ContextCompat
 import androidx.core.net.toUri
 import com.hippo.unifile.UniFile
 import eu.kanade.tachiyomi.data.notification.Notifications
@@ -52,11 +52,7 @@ class BackupCreateService : Service() {
                     putExtra(BackupConst.EXTRA_URI, uri)
                     putExtra(BackupConst.EXTRA_FLAGS, flags)
                 }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)
             }
         }
     }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
index df51b1a99e..318d09e075 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
@@ -4,9 +4,9 @@ import android.app.Service
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.core.content.ContextCompat
 import com.github.salomonbrys.kotson.fromJson
 import com.google.gson.JsonArray
 import com.google.gson.JsonElement
@@ -74,11 +74,7 @@ class BackupRestoreService : Service() {
                 val intent = Intent(context, BackupRestoreService::class.java).apply {
                     putExtra(BackupConst.EXTRA_URI, uri)
                 }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)
             }
         }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadService.kt b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadService.kt
index 403ccafc15..fa500d9c3e 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadService.kt
@@ -7,9 +7,9 @@ import android.content.Intent
 import android.net.ConnectivityManager
 import android.net.NetworkInfo.State.CONNECTED
 import android.net.NetworkInfo.State.DISCONNECTED
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.core.content.ContextCompat
 import com.github.pwittchen.reactivenetwork.library.Connectivity
 import com.github.pwittchen.reactivenetwork.library.ReactiveNetwork
 import com.jakewharton.rxrelay.BehaviorRelay
@@ -47,11 +47,7 @@ class DownloadService : Service() {
          */
         fun start(context: Context) {
             val intent = Intent(context, DownloadService::class.java)
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                context.startService(intent)
-            } else {
-                context.startForegroundService(intent)
-            }
+            ContextCompat.startForegroundService(context, intent)
         }
 
         /**
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
index 49d64db7c3..4884f87c0a 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
@@ -3,9 +3,9 @@ package eu.kanade.tachiyomi.data.library
 import android.app.Service
 import android.content.Context
 import android.content.Intent
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.core.content.ContextCompat
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
@@ -113,11 +113,7 @@ class LibraryUpdateService(
                     putExtra(KEY_TARGET, target)
                     category?.let { putExtra(KEY_CATEGORY, it.id) }
                 }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)
 
                 return true
             }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
index a84b447dcc..37cd602be1 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt
@@ -77,7 +77,7 @@ class PreferencesHelper(val context: Context) {
 
     fun showLibraryUpdateErrors() = prefs.getBoolean(Keys.showLibraryUpdateErrors, false)
 
-    fun clear() = prefs.edit().clear().apply()
+    fun clear() = prefs.edit { clear() }
 
     fun themeMode() = flowPrefs.getEnum(Keys.themeMode, Values.ThemeMode.system)
 
@@ -164,10 +164,10 @@ class PreferencesHelper(val context: Context) {
     fun trackPassword(sync: TrackService) = prefs.getString(Keys.trackPassword(sync.id), "")
 
     fun setTrackCredentials(sync: TrackService, username: String, password: String) {
-        prefs.edit()
-            .putString(Keys.trackUsername(sync.id), username)
-            .putString(Keys.trackPassword(sync.id), password)
-            .apply()
+        prefs.edit {
+            putString(Keys.trackUsername(sync.id), username)
+            putString(Keys.trackPassword(sync.id), password)
+        }
     }
 
     fun trackToken(sync: TrackService) = flowPrefs.getString(Keys.trackToken(sync.id), "")
diff --git a/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdaterService.kt b/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdaterService.kt
index 81103643e4..089db20127 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdaterService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/updater/UpdaterService.kt
@@ -4,9 +4,9 @@ import android.app.PendingIntent
 import android.app.Service
 import android.content.Context
 import android.content.Intent
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.core.content.ContextCompat
 import eu.kanade.tachiyomi.BuildConfig
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.notification.Notifications
@@ -152,11 +152,7 @@ class UpdaterService : Service() {
                     putExtra(EXTRA_DOWNLOAD_TITLE, title)
                     putExtra(EXTRA_DOWNLOAD_URL, url)
                 }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)
             }
         }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/extension/util/ExtensionInstaller.kt b/app/src/main/java/eu/kanade/tachiyomi/extension/util/ExtensionInstaller.kt
index 02ae9ae9f7..4884663918 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/extension/util/ExtensionInstaller.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/extension/util/ExtensionInstaller.kt
@@ -29,7 +29,7 @@ internal class ExtensionInstaller(private val context: Context) {
     /**
      * The system's download manager
      */
-    private val downloadManager = context.getSystemService(Context.DOWNLOAD_SERVICE) as DownloadManager
+    private val downloadManager = context.getSystemService<DownloadManager>()!!
 
     /**
      * The broadcast receiver which listens to download completion events.
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/BrowseController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/BrowseController.kt
index c1d60cd31d..fe0682ca80 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/BrowseController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/BrowseController.kt
@@ -4,6 +4,7 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import com.bluelinelabs.conductor.Controller
 import com.bluelinelabs.conductor.ControllerChangeHandler
 import com.bluelinelabs.conductor.ControllerChangeType
@@ -31,9 +32,7 @@ class BrowseController :
     TabbedController {
 
     constructor(toExtensions: Boolean = false) : super(
-        Bundle().apply {
-            putBoolean(TO_EXTENSIONS_EXTRA, toExtensions)
-        }
+            bundleOf(TO_EXTENSIONS_EXTRA to toExtensions)
     )
 
     @Suppress("unused")
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/ExtensionTrustDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/ExtensionTrustDialog.kt
index 3a91724aaa..1ee6db9d86 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/ExtensionTrustDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/ExtensionTrustDialog.kt
@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.browse.extension
 
 import android.app.Dialog
 import android.os.Bundle
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import com.bluelinelabs.conductor.Controller
 import eu.kanade.tachiyomi.R
@@ -11,10 +12,10 @@ class ExtensionTrustDialog<T>(bundle: Bundle? = null) : DialogController(bundle)
         where T : Controller, T : ExtensionTrustDialog.Listener {
 
     constructor(target: T, signatureHash: String, pkgName: String) : this(
-        Bundle().apply {
-            putString(SIGNATURE_KEY, signatureHash)
-            putString(PKGNAME_KEY, pkgName)
-        }
+            bundleOf(
+                    SIGNATURE_KEY to signatureHash,
+                    PKGNAME_KEY to pkgName
+            )
     ) {
         targetController = target
     }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/ExtensionDetailsController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/ExtensionDetailsController.kt
index b5ff002906..2921d439e5 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/ExtensionDetailsController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/ExtensionDetailsController.kt
@@ -14,6 +14,7 @@ import android.view.MenuItem
 import android.view.View
 import android.view.ViewGroup
 import androidx.appcompat.view.ContextThemeWrapper
+import androidx.core.os.bundleOf
 import androidx.preference.Preference
 import androidx.preference.PreferenceGroupAdapter
 import androidx.preference.PreferenceManager
@@ -55,9 +56,7 @@ class ExtensionDetailsController(bundle: Bundle? = null) :
     private var preferenceScreen: PreferenceScreen? = null
 
     constructor(pkgName: String) : this(
-        Bundle().apply {
-            putString(PKGNAME_KEY, pkgName)
-        }
+            bundleOf(PKGNAME_KEY to pkgName)
     )
 
     init {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/SourcePreferencesController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/SourcePreferencesController.kt
index fa26cd208d..844d956ccb 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/SourcePreferencesController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/details/SourcePreferencesController.kt
@@ -8,6 +8,7 @@ import android.view.ContextThemeWrapper
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.preference.DialogPreference
 import androidx.preference.EditTextPreference
 import androidx.preference.EditTextPreferenceDialogController
@@ -41,9 +42,7 @@ class SourcePreferencesController(bundle: Bundle? = null) :
     private var preferenceScreen: PreferenceScreen? = null
 
     constructor(sourceId: Long) : this(
-        Bundle().apply {
-            putLong(SOURCE_ID, sourceId)
-        }
+            bundleOf(SOURCE_ID to sourceId)
     )
 
     override fun inflateView(inflater: LayoutInflater, container: ViewGroup): View {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/migration/manga/MigrationMangaController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/migration/manga/MigrationMangaController.kt
index 62d8596ac7..4e87121e5c 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/migration/manga/MigrationMangaController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/migration/manga/MigrationMangaController.kt
@@ -4,6 +4,7 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.LinearLayoutManager
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.davidea.flexibleadapter.items.IFlexible
@@ -19,10 +20,10 @@ class MigrationMangaController :
     private var adapter: FlexibleAdapter<IFlexible<*>>? = null
 
     constructor(sourceId: Long, sourceName: String?) : super(
-        Bundle().apply {
-            putLong(SOURCE_ID_EXTRA, sourceId)
-            putString(SOURCE_NAME_EXTRA, sourceName)
-        }
+            bundleOf(
+                    SOURCE_ID_EXTRA to sourceId,
+                    SOURCE_NAME_EXTRA to sourceName
+            )
     )
 
     @Suppress("unused")
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/latest/LatestUpdatesController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/latest/LatestUpdatesController.kt
index ba2e504a9a..bc19f4c287 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/latest/LatestUpdatesController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/browse/source/latest/LatestUpdatesController.kt
@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.browse.source.latest
 
 import android.os.Bundle
 import android.view.Menu
+import androidx.core.os.bundleOf
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.CatalogueSource
 import eu.kanade.tachiyomi.ui.browse.source.browse.BrowseSourceController
@@ -13,9 +14,7 @@ import eu.kanade.tachiyomi.ui.browse.source.browse.BrowseSourcePresenter
 class LatestUpdatesController(bundle: Bundle) : BrowseSourceController(bundle) {
 
     constructor(source: CatalogueSource) : this(
-        Bundle().apply {
-            putLong(SOURCE_ID_KEY, source.id)
-        }
+            bundleOf(SOURCE_ID_KEY to source.id)
     )
 
     override fun createPresenter(): BrowseSourcePresenter {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt
index 578a5b09d0..09f1e588cb 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaController.kt
@@ -17,6 +17,7 @@ import androidx.appcompat.view.ActionMode
 import androidx.core.graphics.blue
 import androidx.core.graphics.green
 import androidx.core.graphics.red
+import androidx.core.os.bundleOf
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.ConcatAdapter
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -98,10 +99,10 @@ class MangaController :
     DeleteChaptersDialog.Listener {
 
     constructor(manga: Manga?, fromSource: Boolean = false) : super(
-        Bundle().apply {
-            putLong(MANGA_EXTRA, manga?.id ?: 0)
-            putBoolean(FROM_SOURCE_EXTRA, fromSource)
-        }
+            bundleOf(
+                    MANGA_EXTRA to (manga?.id ?: 0),
+                    FROM_SOURCE_EXTRA to fromSource
+            )
     ) {
         this.manga = manga
         if (manga != null) {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/DownloadCustomChaptersDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/DownloadCustomChaptersDialog.kt
index 37b00d3a31..543b3d3b7d 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/DownloadCustomChaptersDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/DownloadCustomChaptersDialog.kt
@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.manga.chapter
 
 import android.app.Dialog
 import android.os.Bundle
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.customview.customView
 import com.bluelinelabs.conductor.Controller
@@ -25,10 +26,8 @@ class DownloadCustomChaptersDialog<T> : DialogController
      * @param maxChapters maximal number of chapters that user can download.
      */
     constructor(target: T, maxChapters: Int) : super(
-        Bundle().apply {
             // Add maximum number of chapters to download value to bundle.
-            putInt(KEY_ITEM_MAX, maxChapters)
-        }
+            bundleOf(KEY_ITEM_MAX to maxChapters)
     ) {
         targetController = target
         this.maxChapters = maxChapters
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/SetChapterSettingsDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/SetChapterSettingsDialog.kt
index 3230345365..061e38ec16 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/SetChapterSettingsDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/chapter/SetChapterSettingsDialog.kt
@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.manga.chapter
 
 import android.app.Dialog
 import android.os.Bundle
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.customview.customView
 import eu.kanade.tachiyomi.R
@@ -14,9 +15,7 @@ import eu.kanade.tachiyomi.widget.DialogCheckboxView
 class SetChapterSettingsDialog(bundle: Bundle? = null) : DialogController(bundle) {
 
     constructor(manga: Manga) : this(
-        Bundle().apply {
-            putSerializable(MANGA_KEY, manga)
-        }
+            bundleOf(MANGA_KEY to manga)
     )
 
     override fun onCreateDialog(savedViewState: Bundle?): Dialog {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackChaptersDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackChaptersDialog.kt
index 311bab8625..e2ebc70230 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackChaptersDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackChaptersDialog.kt
@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.ui.manga.track
 import android.app.Dialog
 import android.os.Bundle
 import android.widget.NumberPicker
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.customview.customView
 import com.afollestad.materialdialogs.customview.getCustomView
@@ -20,9 +21,7 @@ class SetTrackChaptersDialog<T> : DialogController
     private val item: TrackItem
 
     constructor(target: T, item: TrackItem) : super(
-        Bundle().apply {
-            putSerializable(KEY_ITEM_TRACK, item.track)
-        }
+            bundleOf(KEY_ITEM_TRACK to item.track)
     ) {
         targetController = target
         this.item = item
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackReadingDatesDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackReadingDatesDialog.kt
index a5d60509a3..6b64e1e008 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackReadingDatesDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackReadingDatesDialog.kt
@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.manga.track
 
 import android.app.Dialog
 import android.os.Bundle
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.datetime.datePicker
 import com.bluelinelabs.conductor.Controller
@@ -21,9 +22,7 @@ class SetTrackReadingDatesDialog<T> : DialogController
     private val dateToUpdate: ReadingDate
 
     constructor(target: T, dateToUpdate: ReadingDate, item: TrackItem) : super(
-        Bundle().apply {
-            putSerializable(SetTrackReadingDatesDialog.KEY_ITEM_TRACK, item.track)
-        }
+            bundleOf(KEY_ITEM_TRACK to item.track)
     ) {
         targetController = target
         this.item = item
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackScoreDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackScoreDialog.kt
index 266b49f9fe..cc75693698 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackScoreDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackScoreDialog.kt
@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.ui.manga.track
 import android.app.Dialog
 import android.os.Bundle
 import android.widget.NumberPicker
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.customview.customView
 import com.afollestad.materialdialogs.customview.getCustomView
@@ -20,9 +21,7 @@ class SetTrackScoreDialog<T> : DialogController
     private val item: TrackItem
 
     constructor(target: T, item: TrackItem) : super(
-        Bundle().apply {
-            putSerializable(KEY_ITEM_TRACK, item.track)
-        }
+            bundleOf(KEY_ITEM_TRACK to item.track)
     ) {
         targetController = target
         this.item = item
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackStatusDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackStatusDialog.kt
index a7116362e7..f20adb3d38 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackStatusDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/SetTrackStatusDialog.kt
@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.manga.track
 
 import android.app.Dialog
 import android.os.Bundle
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.list.listItemsSingleChoice
 import com.bluelinelabs.conductor.Controller
@@ -18,9 +19,7 @@ class SetTrackStatusDialog<T> : DialogController
     private val item: TrackItem
 
     constructor(target: T, item: TrackItem) : super(
-        Bundle().apply {
-            putSerializable(KEY_ITEM_TRACK, item.track)
-        }
+            bundleOf(KEY_ITEM_TRACK to item.track)
     ) {
         targetController = target
         this.item = item
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackController.kt
index f73b250367..7d158775aa 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackController.kt
@@ -6,6 +6,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.core.net.toUri
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.LinearLayoutManager
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.database.models.Manga
@@ -30,9 +31,7 @@ class TrackController :
     SetTrackReadingDatesDialog.Listener {
 
     constructor(manga: Manga?) : super(
-        Bundle().apply {
-            putLong(MANGA_EXTRA, manga?.id ?: 0)
-        }
+            bundleOf(MANGA_EXTRA to (manga?.id ?: 0))
     ) {
         this.manga = manga
     }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchDialog.kt
index 2671042b5e..59b366c867 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchDialog.kt
@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.ui.manga.track
 import android.app.Dialog
 import android.os.Bundle
 import android.view.View
+import androidx.core.os.bundleOf
 import androidx.core.view.isInvisible
 import androidx.core.view.isVisible
 import com.afollestad.materialdialogs.MaterialDialog
@@ -41,9 +42,7 @@ class TrackSearchDialog : DialogController {
         get() = targetController as TrackController
 
     constructor(target: TrackController, service: TrackService) : super(
-        Bundle().apply {
-            putInt(KEY_SERVICE, service.id)
-        }
+            bundleOf(KEY_SERVICE to service.id)
     ) {
         targetController = target
         this.service = service
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/more/AboutController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/more/AboutController.kt
index 75d0aa6e92..add12d6564 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/more/AboutController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/more/AboutController.kt
@@ -5,6 +5,7 @@ import android.content.Intent
 import android.os.Build
 import android.os.Bundle
 import androidx.core.net.toUri
+import androidx.core.os.bundleOf
 import androidx.preference.PreferenceScreen
 import com.afollestad.materialdialogs.MaterialDialog
 import com.mikepenz.aboutlibraries.LibsBuilder
@@ -184,10 +185,7 @@ class AboutController : SettingsController() {
     class NewUpdateDialogController(bundle: Bundle? = null) : DialogController(bundle) {
 
         constructor(body: String, url: String) : this(
-            Bundle().apply {
-                putString(BODY_KEY, body)
-                putString(URL_KEY, url)
-            }
+                bundleOf(BODY_KEY to body, URL_KEY to url)
         )
 
         override fun onCreateDialog(savedViewState: Bundle?): Dialog {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsBackupController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsBackupController.kt
index dd1ef0bf98..330b63bc4e 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsBackupController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsBackupController.kt
@@ -9,6 +9,7 @@ import android.net.Uri
 import android.os.Bundle
 import android.view.View
 import androidx.core.net.toUri
+import androidx.core.os.bundleOf
 import androidx.preference.PreferenceScreen
 import com.afollestad.materialdialogs.MaterialDialog
 import com.afollestad.materialdialogs.list.listItemsMultiChoice
@@ -251,9 +252,7 @@ class SettingsBackupController : SettingsController() {
 
     class RestoreBackupDialog(bundle: Bundle? = null) : DialogController(bundle) {
         constructor(uri: Uri) : this(
-            Bundle().apply {
-                putParcelable(KEY_URI, uri)
-            }
+                bundleOf(KEY_URI to uri)
         )
 
         override fun onCreateDialog(savedViewState: Bundle?): Dialog {
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLoginDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLoginDialog.kt
index 63e152fe0c..8d4ac2fbcf 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLoginDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLoginDialog.kt
@@ -3,6 +3,7 @@ package eu.kanade.tachiyomi.ui.setting.track
 import android.os.Bundle
 import android.view.View
 import androidx.annotation.StringRes
+import androidx.core.os.bundleOf
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.data.track.TrackService
@@ -28,7 +29,7 @@ class TrackLoginDialog(
     constructor(service: TrackService) : this(service, null)
 
     constructor(service: TrackService, @StringRes usernameLabelRes: Int?) :
-        this(R.string.login_title, service.name, usernameLabelRes, Bundle().apply { putInt("key", service.id) })
+        this(R.string.login_title, service.name, usernameLabelRes, bundleOf("key" to service.id))
 
     override fun setCredentialsOnView(view: View) = with(view) {
         username.setText(service.getUsername())
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLogoutDialog.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLogoutDialog.kt
index 9bbbf6a02b..187069bd95 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLogoutDialog.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/setting/track/TrackLogoutDialog.kt
@@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.ui.setting.track
 
 import android.app.Dialog
 import android.os.Bundle
+import androidx.core.os.bundleOf
 import com.afollestad.materialdialogs.MaterialDialog
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.track.TrackManager
@@ -15,7 +16,7 @@ class TrackLogoutDialog(bundle: Bundle? = null) : DialogController(bundle) {
 
     private val service = Injekt.get<TrackManager>().getService(args.getInt("key"))!!
 
-    constructor(service: TrackService) : this(Bundle().apply { putInt("key", service.id) })
+    constructor(service: TrackService) : this(bundleOf("key" to service.id))
 
     override fun onCreateDialog(savedViewState: Bundle?): Dialog {
         return MaterialDialog(activity!!)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt b/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt
index 7ffc3a6d31..2a541c4b05 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/util/system/ContextExtensions.kt
@@ -64,7 +64,7 @@ fun Context.toast(text: String?, duration: Int = Toast.LENGTH_SHORT) {
 fun Context.copyToClipboard(label: String, content: String) {
     if (content.isBlank()) return
 
-    val clipboard = getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+    val clipboard = getSystemService<ClipboardManager>()!!
     clipboard.setPrimaryClip(ClipData.newPlainText(label, content))
 
     toast(getString(R.string.copied_to_clipboard, content.truncateCenter(50)))
diff --git a/app/src/main/java/eu/kanade/tachiyomi/util/system/LocaleHelper.kt b/app/src/main/java/eu/kanade/tachiyomi/util/system/LocaleHelper.kt
index 059facb3a7..d6ac453f8d 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/util/system/LocaleHelper.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/util/system/LocaleHelper.kt
@@ -5,6 +5,7 @@ import android.content.Context
 import android.content.res.Configuration
 import android.os.Build
 import android.view.ContextThemeWrapper
+import androidx.core.os.ConfigurationCompat
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.ui.browse.source.SourcePresenter
@@ -110,10 +111,10 @@ object LocaleHelper {
      */
     fun updateConfiguration(app: Application, config: Configuration, configChange: Boolean = false) {
         if (systemLocale == null) {
-            systemLocale = getConfigLocale(config)
+            systemLocale = ConfigurationCompat.getLocales(config)[0]
         }
         if (configChange) {
-            val configLocale = getConfigLocale(config)
+            val configLocale = ConfigurationCompat.getLocales(config)[0]
             if (currentLocale == configLocale) {
                 return
             }
@@ -127,17 +128,6 @@ object LocaleHelper {
         Locale.setDefault(currentLocale)
     }
 
-    /**
-     * Returns the locale applied in the given configuration.
-     */
-    private fun getConfigLocale(config: Configuration): Locale {
-        return if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
-            config.locale
-        } else {
-            config.locales[0]
-        }
-    }
-
     /**
      * Returns a new configuration with the given locale applied.
      */
diff --git a/buildSrc/src/main/kotlin/Dependencies.kt b/buildSrc/src/main/kotlin/Dependencies.kt
index d622c3599e..009dcdd42a 100644
--- a/buildSrc/src/main/kotlin/Dependencies.kt
+++ b/buildSrc/src/main/kotlin/Dependencies.kt
@@ -1,5 +1,5 @@
 object BuildPluginsVersion {
-    const val AGP = "4.0.1"
+    const val AGP = "4.0.2"
     const val KOTLIN = "1.4.10"
     const val KOTLINTER = "3.0.2"
     const val VERSIONS_PLUGIN = "0.33.0"