Add persistent notch display mode

(cherry picked from commit 444cfa7669166edc874da4994396776a90ded465)

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt

@@ -162,6 +162,8 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
         binding = ReaderActivityBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
+        setNotchCutoutMode()
+
         if (presenter.needsInit()) {
             val manga = intent.extras!!.getLong("manga", -1)
             val chapter = intent.extras!!.getLong("chapter", -1)
@@ -862,6 +864,22 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
         }
     }
 
+    /**
+     * Sets notch cutout mode to "NEVER", if mobile is in a landscape view
+     */
+    private fun setNotchCutoutMode() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+
+            val currentOrientation = resources.configuration.orientation
+
+            if (currentOrientation == Configuration.ORIENTATION_LANDSCAPE) {
+                val params = window.attributes
+                params.layoutInDisplayCutoutMode =
+                        WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_NEVER
+            }
+        }
+    }
+
     /**
      * Class that handles the user preferences of the reader.
      */