diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/browse/ProgressItem.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/browse/ProgressItem.kt
index 545cff9528..7b4aa03294 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/browse/ProgressItem.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/browse/ProgressItem.kt
@@ -9,6 +9,8 @@ import eu.davidea.flexibleadapter.items.AbstractFlexibleItem
 import eu.davidea.flexibleadapter.items.IFlexible
 import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.util.view.gone
+import eu.kanade.tachiyomi.util.view.visible
 
 class ProgressItem : AbstractFlexibleItem<ProgressItem.Holder>() {
 
@@ -23,17 +25,17 @@ class ProgressItem : AbstractFlexibleItem<ProgressItem.Holder>() {
     }
 
     override fun bindViewHolder(adapter: FlexibleAdapter<IFlexible<RecyclerView.ViewHolder>>, holder: Holder, position: Int, payloads: List<Any?>) {
-        holder.progressBar.visibility = View.GONE
-        holder.progressMessage.visibility = View.GONE
+        holder.progressBar.gone()
+        holder.progressMessage.gone()
 
         if (!adapter.isEndlessScrollEnabled) {
             loadMore = false
         }
 
         if (loadMore) {
-            holder.progressBar.visibility = View.VISIBLE
+            holder.progressBar.visible()
         } else {
-            holder.progressMessage.visibility = View.VISIBLE
+            holder.progressMessage.visible()
         }
     }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionDetailsController.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionDetailsController.kt
index da84d5b0e4..78aa6ae83a 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionDetailsController.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/extension/ExtensionDetailsController.kt
@@ -31,6 +31,7 @@ import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.ui.base.controller.NucleusController
 import eu.kanade.tachiyomi.util.preference.preferenceCategory
 import eu.kanade.tachiyomi.util.system.LocaleHelper
+import eu.kanade.tachiyomi.util.view.visible
 import kotlinx.android.synthetic.main.extension_detail_controller.extension_icon
 import kotlinx.android.synthetic.main.extension_detail_controller.extension_lang
 import kotlinx.android.synthetic.main.extension_detail_controller.extension_obsolete
@@ -86,7 +87,7 @@ class ExtensionDetailsController(bundle: Bundle? = null) :
         }
 
         if (extension.isObsolete) {
-            extension_obsolete.visibility = View.VISIBLE
+            extension_obsolete.visible()
         }
 
         val themedContext by lazy { getPreferenceThemeContext() }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryGridHolder.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryGridHolder.kt
index 131aebc846..5fe8327aa7 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryGridHolder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryGridHolder.kt
@@ -5,6 +5,7 @@ import com.bumptech.glide.load.engine.DiskCacheStrategy
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.data.glide.GlideApp
 import eu.kanade.tachiyomi.source.LocalSource
+import eu.kanade.tachiyomi.util.view.visibleIf
 import kotlinx.android.synthetic.main.catalogue_grid_item.download_text
 import kotlinx.android.synthetic.main.catalogue_grid_item.local_text
 import kotlinx.android.synthetic.main.catalogue_grid_item.thumbnail
@@ -37,16 +38,16 @@ class LibraryGridHolder(
 
         // Update the unread count and its visibility.
         with(unread_text) {
-            visibility = if (item.manga.unread > 0) View.VISIBLE else View.GONE
+            visibleIf { item.manga.unread > 0 }
             text = item.manga.unread.toString()
         }
         // Update the download count and its visibility.
         with(download_text) {
-            visibility = if (item.downloadCount > 0) View.VISIBLE else View.GONE
+            visibleIf { item.downloadCount > 0 }
             text = item.downloadCount.toString()
         }
         // set local visibility if its local manga
-        local_text.visibility = if (item.manga.source == LocalSource.ID) View.VISIBLE else View.GONE
+        local_text.visibleIf { item.manga.source == LocalSource.ID }
 
         // Update the cover.
         GlideApp.with(view.context).clear(thumbnail)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryListHolder.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryListHolder.kt
index 82e51b4ddc..f8f8717458 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryListHolder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryListHolder.kt
@@ -5,6 +5,7 @@ import com.bumptech.glide.load.engine.DiskCacheStrategy
 import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.data.glide.GlideApp
 import eu.kanade.tachiyomi.source.LocalSource
+import eu.kanade.tachiyomi.util.view.visibleIf
 import kotlinx.android.synthetic.main.catalogue_list_item.download_text
 import kotlinx.android.synthetic.main.catalogue_list_item.local_text
 import kotlinx.android.synthetic.main.catalogue_list_item.thumbnail
@@ -38,16 +39,16 @@ class LibraryListHolder(
 
         // Update the unread count and its visibility.
         with(unread_text) {
-            visibility = if (item.manga.unread > 0) View.VISIBLE else View.GONE
+            visibleIf { item.manga.unread > 0 }
             text = item.manga.unread.toString()
         }
         // Update the download count and its visibility.
         with(download_text) {
-            visibility = if (item.downloadCount > 0) View.VISIBLE else View.GONE
+            visibleIf { item.downloadCount > 0 }
             text = "${item.downloadCount}"
         }
         // show local text badge if local manga
-        local_text.visibility = if (item.manga.source == LocalSource.ID) View.VISIBLE else View.GONE
+        local_text.visibleIf { item.manga.source == LocalSource.ID }
 
         // Create thumbnail onclick to simulate long click
         thumbnail.setOnClickListener {
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 33df2f822b..62879ea0ca 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
@@ -13,6 +13,8 @@ import eu.kanade.tachiyomi.data.track.TrackService
 import eu.kanade.tachiyomi.data.track.model.TrackSearch
 import eu.kanade.tachiyomi.ui.base.controller.DialogController
 import eu.kanade.tachiyomi.util.lang.plusAssign
+import eu.kanade.tachiyomi.util.view.invisible
+import eu.kanade.tachiyomi.util.view.visible
 import java.util.concurrent.TimeUnit
 import kotlinx.android.synthetic.main.track_search_dialog.view.progress
 import kotlinx.android.synthetic.main.track_search_dialog.view.track_search
@@ -117,23 +119,23 @@ class TrackSearchDialog : DialogController {
 
     private fun search(query: String) {
         val view = dialogView ?: return
-        view.progress.visibility = View.VISIBLE
-        view.track_search_list.visibility = View.INVISIBLE
+        view.progress.visible()
+        view.track_search_list.invisible()
         trackController.presenter.search(query, service)
     }
 
     fun onSearchResults(results: List<TrackSearch>) {
         selectedItem = null
         val view = dialogView ?: return
-        view.progress.visibility = View.INVISIBLE
-        view.track_search_list.visibility = View.VISIBLE
+        view.progress.invisible()
+        view.track_search_list.visible()
         adapter?.setItems(results)
     }
 
     fun onSearchResultsError() {
         val view = dialogView ?: return
-        view.progress.visibility = View.VISIBLE
-        view.track_search_list.visibility = View.INVISIBLE
+        view.progress.visible()
+        view.track_search_list.invisible()
         adapter?.setItems(emptyList())
     }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt
index 6046132c1d..a63b9a51ae 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt
@@ -312,7 +312,7 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
             } else {
                 resetDefaultMenuAndBar()
             }
-            reader_menu.visibility = View.VISIBLE
+            reader_menu.visible()
 
             if (animate) {
                 val toolbarAnimation = AnimationUtils.loadAnimation(this, R.anim.enter_from_top)
@@ -342,7 +342,7 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
                 val toolbarAnimation = AnimationUtils.loadAnimation(this, R.anim.exit_to_top)
                 toolbarAnimation.setAnimationListener(object : SimpleAnimationListener() {
                     override fun onAnimationEnd(animation: Animation) {
-                        reader_menu.visibility = View.GONE
+                        reader_menu.gone()
                     }
                 })
                 toolbar.startAnimation(toolbarAnimation)
@@ -741,7 +741,7 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
                 subscriptions.add(customFilterColorSubscription)
             } else {
                 customFilterColorSubscription?.let { subscriptions.remove(it) }
-                color_overlay.visibility = View.GONE
+                color_overlay.gone()
             }
         }
 
@@ -767,11 +767,11 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
 
             // Set black overlay visibility.
             if (value < 0) {
-                brightness_overlay.visibility = View.VISIBLE
+                brightness_overlay.visible()
                 val alpha = (abs(value) * 2.56).toInt()
                 brightness_overlay.setBackgroundColor(Color.argb(alpha, 0, 0, 0))
             } else {
-                brightness_overlay.visibility = View.GONE
+                brightness_overlay.gone()
             }
         }
 
@@ -779,7 +779,7 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
          * Sets the color filter [value].
          */
         private fun setColorFilterValue(value: Int) {
-            color_overlay.visibility = View.VISIBLE
+            color_overlay.visible()
             color_overlay.setFilterColor(value, preferences.colorFilterMode().getOrDefault())
         }
     }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt
index 42c2528499..8b5096967c 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderColorFilterSheet.kt
@@ -11,6 +11,8 @@ import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.preference.getOrDefault
 import eu.kanade.tachiyomi.util.lang.plusAssign
+import eu.kanade.tachiyomi.util.view.gone
+import eu.kanade.tachiyomi.util.view.visible
 import eu.kanade.tachiyomi.widget.IgnoreFirstSpinnerListener
 import eu.kanade.tachiyomi.widget.SimpleSeekBarListener
 import java.util.concurrent.TimeUnit
@@ -234,11 +236,11 @@ class ReaderColorFilterSheet(activity: ReaderActivity) : BottomSheetDialog(activ
     private fun setCustomBrightnessValue(value: Int, view: View, isDisabled: Boolean = false) = with(view) {
         // Set black overlay visibility.
         if (value < 0) {
-            brightness_overlay.visibility = View.VISIBLE
+            brightness_overlay.visible()
             val alpha = (abs(value) * 2.56).toInt()
             brightness_overlay.setBackgroundColor(Color.argb(alpha, 0, 0, 0))
         } else {
-            brightness_overlay.visibility = View.GONE
+            brightness_overlay.gone()
         }
 
         if (!isDisabled)
@@ -259,7 +261,7 @@ class ReaderColorFilterSheet(activity: ReaderActivity) : BottomSheetDialog(activ
             subscriptions.add(customFilterColorSubscription)
         } else {
             customFilterColorSubscription?.let { subscriptions.remove(it) }
-            color_overlay.visibility = View.GONE
+            color_overlay.gone()
         }
         setColorFilterSeekBar(enabled, view)
     }
@@ -270,7 +272,7 @@ class ReaderColorFilterSheet(activity: ReaderActivity) : BottomSheetDialog(activ
      * @param view view of the dialog
      */
     private fun setColorFilterValue(@ColorInt color: Int, view: View) = with(view) {
-        color_overlay.visibility = View.VISIBLE
+        color_overlay.visible()
         color_overlay.setFilterColor(color, preferences.colorFilterMode().getOrDefault())
         setValues(color, view)
     }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderSettingsSheet.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderSettingsSheet.kt
index d0fc2b1af8..e32f6d6cd9 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderSettingsSheet.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderSettingsSheet.kt
@@ -2,7 +2,6 @@ package eu.kanade.tachiyomi.ui.reader
 
 import android.os.Build
 import android.os.Bundle
-import android.view.View
 import android.widget.CompoundButton
 import android.widget.Spinner
 import androidx.core.widget.NestedScrollView
@@ -87,7 +86,7 @@ class ReaderSettingsSheet(private val activity: ReaderActivity) : BottomSheetDia
         show_page_number.bindToPreference(preferences.showPageNumber())
         fullscreen.bindToPreference(preferences.fullscreen())
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
-            cutout_short.visibility = View.VISIBLE
+            cutout_short.visible()
             cutout_short.bindToPreference(preferences.cutoutShort())
         }
         keepscreen.bindToPreference(preferences.keepScreenOn())
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/ReaderProgressBar.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/ReaderProgressBar.kt
index ed215bf812..30c1aced66 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/ReaderProgressBar.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/ReaderProgressBar.kt
@@ -16,6 +16,7 @@ import android.view.animation.LinearInterpolator
 import android.view.animation.RotateAnimation
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.util.system.getResourceColor
+import eu.kanade.tachiyomi.util.view.gone
 import kotlin.math.min
 
 /**
@@ -155,14 +156,14 @@ class ReaderProgressBar @JvmOverloads constructor(
         if (visibility == View.GONE) return
 
         if (!animate) {
-            visibility = View.GONE
+            gone()
         } else {
             ObjectAnimator.ofFloat(this, "alpha", 1f, 0f).apply {
                 interpolator = DecelerateInterpolator()
                 duration = 1000
                 addListener(object : AnimatorListenerAdapter() {
                     override fun onAnimationEnd(animation: Animator?) {
-                        visibility = View.GONE
+                        gone()
                         alpha = 1f
                     }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerViewer.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerViewer.kt
index 57c48b6cec..dc8ce052ba 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerViewer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerViewer.kt
@@ -12,6 +12,8 @@ import eu.kanade.tachiyomi.ui.reader.model.ChapterTransition
 import eu.kanade.tachiyomi.ui.reader.model.ReaderPage
 import eu.kanade.tachiyomi.ui.reader.model.ViewerChapters
 import eu.kanade.tachiyomi.ui.reader.viewer.BaseViewer
+import eu.kanade.tachiyomi.util.view.gone
+import eu.kanade.tachiyomi.util.view.visible
 import timber.log.Timber
 
 /**
@@ -63,7 +65,7 @@ abstract class PagerViewer(val activity: ReaderActivity) : BaseViewer {
         }
 
     init {
-        pager.visibility = View.GONE // Don't layout the pager yet
+        pager.gone() // Don't layout the pager yet
         pager.layoutParams = LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)
         pager.offscreenPageLimit = 1
         pager.id = R.id.reader_pager
@@ -195,7 +197,7 @@ abstract class PagerViewer(val activity: ReaderActivity) : BaseViewer {
             Timber.d("Pager first layout")
             val pages = chapters.currChapter.pages ?: return
             moveToPage(pages[chapters.currChapter.requestedPage])
-            pager.visibility = View.VISIBLE
+            pager.visible()
         }
     }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonViewer.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonViewer.kt
index 7805300ffb..ac509a8564 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonViewer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonViewer.kt
@@ -12,6 +12,8 @@ import eu.kanade.tachiyomi.ui.reader.model.ChapterTransition
 import eu.kanade.tachiyomi.ui.reader.model.ReaderPage
 import eu.kanade.tachiyomi.ui.reader.model.ViewerChapters
 import eu.kanade.tachiyomi.ui.reader.viewer.BaseViewer
+import eu.kanade.tachiyomi.util.view.gone
+import eu.kanade.tachiyomi.util.view.visible
 import kotlin.math.max
 import kotlin.math.min
 import rx.subscriptions.CompositeSubscription
@@ -63,7 +65,7 @@ class WebtoonViewer(val activity: ReaderActivity) : BaseViewer {
     val subscriptions = CompositeSubscription()
 
     init {
-        recycler.visibility = View.GONE // Don't let the recycler layout yet
+        recycler.gone() // Don't let the recycler layout yet
         recycler.layoutParams = ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT)
         recycler.itemAnimator = null
         recycler.layoutManager = layoutManager
@@ -184,7 +186,7 @@ class WebtoonViewer(val activity: ReaderActivity) : BaseViewer {
             Timber.d("Recycler first layout")
             val pages = chapters.currChapter.pages ?: return
             moveToPage(pages[chapters.currChapter.requestedPage])
-            recycler.visibility = View.VISIBLE
+            recycler.visible()
         }
     }
 
diff --git a/app/src/main/java/eu/kanade/tachiyomi/widget/ActionToolbar.kt b/app/src/main/java/eu/kanade/tachiyomi/widget/ActionToolbar.kt
index 9761c7a761..ef88459ab2 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/widget/ActionToolbar.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/widget/ActionToolbar.kt
@@ -3,12 +3,13 @@ package eu.kanade.tachiyomi.widget
 import android.content.Context
 import android.util.AttributeSet
 import android.view.MenuItem
-import android.view.View
 import android.widget.FrameLayout
 import androidx.annotation.IdRes
 import androidx.annotation.MenuRes
 import androidx.appcompat.view.ActionMode
 import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.util.view.gone
+import eu.kanade.tachiyomi.util.view.visible
 import kotlinx.android.synthetic.main.common_action_toolbar.view.common_action_menu
 import kotlinx.android.synthetic.main.common_action_toolbar.view.common_action_toolbar
 
@@ -47,13 +48,13 @@ class ActionToolbar @JvmOverloads constructor(context: Context, attrs: Attribute
             common_action_menu.setOnMenuItemClickListener { listener(it) }
         }
 
-        common_action_toolbar.visibility = View.VISIBLE
+        common_action_toolbar.visible()
     }
 
     /**
      * Hide the menu toolbar.
      */
     fun hide() {
-        common_action_toolbar.visibility = View.GONE
+        common_action_toolbar.gone()
     }
 }
diff --git a/app/src/main/java/eu/kanade/tachiyomi/widget/RevealAnimationView.kt b/app/src/main/java/eu/kanade/tachiyomi/widget/RevealAnimationView.kt
index 9a79b0c68c..94594dc213 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/widget/RevealAnimationView.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/widget/RevealAnimationView.kt
@@ -6,6 +6,8 @@ import android.content.Context
 import android.util.AttributeSet
 import android.view.View
 import android.view.ViewAnimationUtils
+import eu.kanade.tachiyomi.util.view.invisible
+import eu.kanade.tachiyomi.util.view.visible
 
 class RevealAnimationView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
         View(context, attrs) {
@@ -19,7 +21,7 @@ class RevealAnimationView @JvmOverloads constructor(context: Context, attrs: Att
      */
     fun hideRevealEffect(centerX: Int, centerY: Int, initialRadius: Int) {
         // Make the view visible.
-        this.visibility = View.VISIBLE
+        this.visible()
 
         // Create the animation (the final radius is zero).
         val anim = ViewAnimationUtils.createCircularReveal(
@@ -32,7 +34,7 @@ class RevealAnimationView @JvmOverloads constructor(context: Context, attrs: Att
         anim.addListener(object : AnimatorListenerAdapter() {
             override fun onAnimationEnd(animation: Animator) {
                 super.onAnimationEnd(animation)
-                this@RevealAnimationView.visibility = View.INVISIBLE
+                this@RevealAnimationView.invisible()
             }
         })
 
@@ -49,7 +51,7 @@ class RevealAnimationView @JvmOverloads constructor(context: Context, attrs: Att
      * @return sdk version lower then 21
      */
     fun showRevealEffect(centerX: Int, centerY: Int, listener: Animator.AnimatorListener): Boolean {
-        this.visibility = View.VISIBLE
+        this.visible()
 
         val height = this.height