Revert "Drop support for Android 5.x"

This reverts commit 443024cebb. Guess I'll do this a bit later so scb can get another major update first.

April Fools or whatever.

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

@@ -290,17 +290,23 @@ class MangaController :
         fab.setOnClickListener {
             val item = presenter.getNextUnreadChapter()
             if (item != null) {
+                // Create animation listener
+                val revealAnimationListener: Animator.AnimatorListener = object : AnimatorListenerAdapter() {
+                    override fun onAnimationStart(animation: Animator?) {
+                        openChapter(item.chapter, true)
+                    }
+                }
+
                 // Get coordinates and start animation
                 actionFab?.getCoordinates()?.let { coordinates ->
-                    binding.revealView.showRevealEffect(
-                        coordinates.x,
-                        coordinates.y,
-                        object : AnimatorListenerAdapter() {
-                            override fun onAnimationStart(animation: Animator?) {
-                                openChapter(item.chapter, true)
-                            }
-                        }
-                    )
+                    if (!binding.revealView.showRevealEffect(
+                            coordinates.x,
+                            coordinates.y,
+                            revealAnimationListener
+                        )
+                    ) {
+                        openChapter(item.chapter)
+                    }
                 }
             } else {
                 view?.context?.toast(R.string.no_next_chapter)

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

@@ -1,5 +1,7 @@
 package eu.kanade.tachiyomi.ui.manga.info
 
+import android.graphics.PorterDuff
+import android.os.Build
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -19,6 +21,7 @@ import eu.kanade.tachiyomi.source.model.SManga
 import eu.kanade.tachiyomi.source.online.HttpSource
 import eu.kanade.tachiyomi.ui.manga.MangaController
 import eu.kanade.tachiyomi.util.system.copyToClipboard
+import eu.kanade.tachiyomi.util.system.getResourceColor
 import eu.kanade.tachiyomi.util.view.setChips
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.merge
@@ -301,6 +304,18 @@ class MangaInfoHeaderAdapter(
                     initialLoad = false
                 }
             }
+
+            // backgroundTint attribute doesn't work properly on Android 5
+            if (Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP) {
+                listOf(binding.backdropOverlay, binding.mangaInfoToggleMoreScrim)
+                    .forEach {
+                        @Suppress("DEPRECATION")
+                        it.background.setColorFilter(
+                            view.context.getResourceColor(android.R.attr.colorBackground),
+                            PorterDuff.Mode.SRC_ATOP
+                        )
+                    }
+            }
         }
 
         private fun showMangaInfo(visible: Boolean) {