Various crash fixes

app/src/main/java/eu/kanade/tachiyomi/ui/base/presenter/BaseCoroutinePresenter.kt

@@ -7,6 +7,7 @@ import kotlinx.coroutines.cancel
 
 open class BaseCoroutinePresenter<T> {
     lateinit var presenterScope: CoroutineScope
+    val isScopeInitialized get() = this::presenterScope.isInitialized
     protected var controller: T? = null
 
     /**

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.kt

@@ -1225,7 +1225,7 @@ class LibraryPresenter(
             val mangaFetcher = MangaFetcher()
             val libraryManga = db.getFavoriteMangas().executeOnIO()
             libraryManga.forEach { manga ->
-                mangaFetcher.setRatioAndColors(manga)
+                try { withUIContext { mangaFetcher.setRatioAndColors(manga) } } catch (_: Exception) { }
             }
             MangaCoverMetadata.savePrefs()
         }

app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt

@@ -72,6 +72,7 @@ import eu.kanade.tachiyomi.ui.base.activity.BaseActivity
 import eu.kanade.tachiyomi.ui.base.controller.BaseController
 import eu.kanade.tachiyomi.ui.base.controller.DialogController
 import eu.kanade.tachiyomi.ui.library.LibraryController
+import eu.kanade.tachiyomi.ui.library.LibraryPresenter
 import eu.kanade.tachiyomi.ui.manga.MangaDetailsController
 import eu.kanade.tachiyomi.ui.more.AboutController
 import eu.kanade.tachiyomi.ui.more.OverflowDialog
@@ -468,6 +469,9 @@ open class MainActivity : BaseActivity<MainActivityBinding>(), DownloadServiceLi
                     }
                 }
             }
+            lifecycleScope.launchIO {
+                LibraryPresenter.updateRatiosAndColors()
+            }
         }
         getExtensionUpdates(true)
 

app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaDetailsController.kt

@@ -556,7 +556,9 @@ class MangaDetailsController :
     //region Lifecycle methods
     override fun onActivityResumed(activity: Activity) {
         super.onActivityResumed(activity)
-        presenter.isLockedFromSearch = shouldLockIfNeeded && SecureActivityDelegate.shouldBeLocked()
+        if (presenter.isScopeInitialized) {
+            presenter.isLockedFromSearch =
+                shouldLockIfNeeded && SecureActivityDelegate.shouldBeLocked()
             presenter.headerItem.isLocked = presenter.isLockedFromSearch
             manga!!.thumbnail_url = presenter.refreshMangaFromDb().thumbnail_url
             presenter.fetchChapters(refreshTracker == null)
@@ -567,6 +569,7 @@ class MangaDetailsController :
             }
             // fetch cover again in case the user set a new cover while reading
             setPaletteColor()
+        }
         val isCurrentController = router?.backstack?.lastOrNull()?.controller ==
             this
         if (isCurrentController) {

app/src/main/java/eu/kanade/tachiyomi/util/view/ControllerExtensions.kt

@@ -478,9 +478,10 @@ fun Controller.scrollViewWith(
                                 preferences.hideBottomNavOnScroll().get()
                             ) closerToBottom else closerToTop
                         lastY = activityBinding!!.appBar.snapAppBarY(recycler) {
+                            val activityBinding = activityBinding ?: return@snapAppBarY
                             swipeCircle?.translationY = max(
-                                activityBinding!!.appBar.y,
+                                activityBinding.appBar.y,
-                                -activityBinding!!.appBar.height + activityBinding!!.appBar.paddingTop.toFloat()
+                                -activityBinding.appBar.height + activityBinding.appBar.paddingTop.toFloat()
                             )
                         }
                         if (activityBinding!!.bottomNav?.isVisible == true &&