Add view caching to view holders

app/src/main/java/eu/kanade/tachiyomi/ui/base/holder/BaseFlexibleViewHolder.kt

@@ -0,0 +1,15 @@
+package eu.kanade.tachiyomi.ui.base.holder
+
+import android.view.View
+import eu.davidea.flexibleadapter.FlexibleAdapter
+import eu.davidea.viewholders.FlexibleViewHolder
+import kotlinx.android.extensions.LayoutContainer
+
+abstract class BaseFlexibleViewHolder(view: View,
+                                      adapter: FlexibleAdapter<*>,
+                                      stickyHeader: Boolean = false) :
+        FlexibleViewHolder(view, adapter, stickyHeader), LayoutContainer {
+
+    override val containerView: View?
+        get() = itemView
+}

app/src/main/java/eu/kanade/tachiyomi/ui/base/holder/BaseViewHolder.kt

@@ -0,0 +1,11 @@
+package eu.kanade.tachiyomi.ui.base.holder
+
+import android.support.v7.widget.RecyclerView
+import android.view.View
+import kotlinx.android.extensions.LayoutContainer
+
+abstract class BaseViewHolder(view: View) : RecyclerView.ViewHolder(view), LayoutContainer {
+
+    override val containerView: View?
+        get() = itemView
+}

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/LangHolder.kt

@@ -2,15 +2,16 @@ package eu.kanade.tachiyomi.ui.catalogue
 
 import android.view.View
 import eu.davidea.flexibleadapter.FlexibleAdapter
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
-import kotlinx.android.synthetic.main.catalogue_main_controller_card.view.*
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
+import kotlinx.android.synthetic.main.catalogue_main_controller_card.*
 import java.util.*
 
-class LangHolder(view: View, adapter: FlexibleAdapter<*>) : FlexibleViewHolder(view, adapter, true) {
+class LangHolder(view: View, adapter: FlexibleAdapter<*>) :
+        BaseFlexibleViewHolder(view, adapter, true) {
 
     fun bind(item: LangItem) {
-        itemView.title.text = when {
+        title.text = when {
             item.code == "" -> itemView.context.getString(R.string.other_source)
             else -> {
                 val locale = Locale(item.code)

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/SourceHolder.kt

@@ -3,53 +3,51 @@ package eu.kanade.tachiyomi.ui.catalogue
 import android.os.Build
 import android.view.View
 import android.view.ViewGroup
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.online.LoginSource
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 import eu.kanade.tachiyomi.util.dpToPx
 import eu.kanade.tachiyomi.util.getRound
 import eu.kanade.tachiyomi.util.gone
 import eu.kanade.tachiyomi.util.visible
 import io.github.mthli.slice.Slice
-import kotlinx.android.synthetic.main.catalogue_main_controller_card_item.view.*
+import kotlinx.android.synthetic.main.catalogue_main_controller_card_item.*
 
-class SourceHolder(view: View, adapter: CatalogueAdapter) : FlexibleViewHolder(view, adapter) {
+class SourceHolder(view: View, adapter: CatalogueAdapter) : BaseFlexibleViewHolder(view, adapter) {
 
-    private val slice = Slice(itemView.card).apply {
+    private val slice = Slice(card).apply {
         setColor(adapter.cardBackground)
     }
 
     init {
-        itemView.source_browse.setOnClickListener {
+        source_browse.setOnClickListener {
             adapter.browseClickListener.onBrowseClick(adapterPosition)
         }
 
-        itemView.source_latest.setOnClickListener {
+        source_latest.setOnClickListener {
             adapter.latestClickListener.onLatestClick(adapterPosition)
         }
     }
 
     fun bind(item: SourceItem) {
         val source = item.source
-        with(itemView) {
-            setCardEdges(item)
-
-            // Set source name
-            title.text = source.name
-
-            // Set circle letter image.
-            post {
-                image.setImageDrawable(image.getRound(source.name.take(1).toUpperCase(),false))
-            }
-
-            // If source is login, show only login option
-            if (source is LoginSource && !source.isLogged()) {
-                source_browse.setText(R.string.login)
-                source_latest.gone()
-            } else {
-                source_browse.setText(R.string.browse)
-                source_latest.visible()
-            }
+        setCardEdges(item)
+
+        // Set source name
+        title.text = source.name
+
+        // Set circle letter image.
+        itemView.post {
+            image.setImageDrawable(image.getRound(source.name.take(1).toUpperCase(),false))
+        }
+
+        // If source is login, show only login option
+        if (source is LoginSource && !source.isLogged()) {
+            source_browse.setText(R.string.login)
+            source_latest.gone()
+        } else {
+            source_browse.setText(R.string.browse)
+            source_latest.visible()
         }
     }
 
@@ -94,7 +92,7 @@ class SourceHolder(view: View, adapter: CatalogueAdapter) : FlexibleViewHolder(v
     }
 
     private fun setMargins(left: Int, top: Int, right: Int, bottom: Int) {
-        val v = itemView.card
+        val v = card
         if (v.layoutParams is ViewGroup.MarginLayoutParams) {
             val p = v.layoutParams as ViewGroup.MarginLayoutParams
             p.setMargins(left, top, right, bottom)

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/browse/CatalogueGridHolder.kt

@@ -6,7 +6,7 @@ import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.glide.GlideApp
 import eu.kanade.tachiyomi.widget.StateImageViewTarget
-import kotlinx.android.synthetic.main.catalogue_grid_item.view.*
+import kotlinx.android.synthetic.main.catalogue_grid_item.*
 
 /**
  * Class used to hold the displayed data of a manga in the catalogue, like the cover or the title.
@@ -27,16 +27,16 @@ class CatalogueGridHolder(private val view: View, private val adapter: FlexibleA
      */
     override fun onSetValues(manga: Manga) {
         // Set manga title
-        view.title.text = manga.title
+        title.text = manga.title
 
         // Set alpha of thumbnail.
-        view.thumbnail.alpha = if (manga.favorite) 0.3f else 1.0f
+        thumbnail.alpha = if (manga.favorite) 0.3f else 1.0f
 
         setImage(manga)
     }
 
     override fun setImage(manga: Manga) {
-        GlideApp.with(view.context).clear(view.thumbnail)
+        GlideApp.with(view.context).clear(thumbnail)
         if (!manga.thumbnail_url.isNullOrEmpty()) {
             GlideApp.with(view.context)
                     .load(manga)
@@ -44,7 +44,7 @@ class CatalogueGridHolder(private val view: View, private val adapter: FlexibleA
                     .centerCrop()
                     .skipMemoryCache(true)
                     .placeholder(android.R.color.transparent)
-                    .into(StateImageViewTarget(view.thumbnail, view.progress))
+                    .into(StateImageViewTarget(thumbnail, progress))
         }
     }
 }

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/browse/CatalogueHolder.kt

@@ -2,8 +2,8 @@ package eu.kanade.tachiyomi.ui.catalogue.browse
 
 import android.view.View
 import eu.davidea.flexibleadapter.FlexibleAdapter
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 
 /**
  * Generic class used to hold the displayed data of a manga in the catalogue.
@@ -12,7 +12,7 @@ import eu.kanade.tachiyomi.data.database.models.Manga
  * @param adapter the adapter handling this holder.
  */
 abstract class CatalogueHolder(view: View, adapter: FlexibleAdapter<*>) :
-        FlexibleViewHolder(view, adapter) {
+        BaseFlexibleViewHolder(view, adapter) {
 
     /**
      * Method called from [CatalogueAdapter.onBindViewHolder]. It updates the data for this

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/browse/CatalogueListHolder.kt

@@ -6,7 +6,7 @@ import eu.davidea.flexibleadapter.FlexibleAdapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.glide.GlideApp
 import eu.kanade.tachiyomi.util.getResourceColor
-import kotlinx.android.synthetic.main.catalogue_list_item.view.*
+import kotlinx.android.synthetic.main.catalogue_list_item.*
 
 /**
  * Class used to hold the displayed data of a manga in the catalogue, like the cover or the title.
@@ -29,14 +29,14 @@ class CatalogueListHolder(private val view: View, adapter: FlexibleAdapter<*>) :
      * @param manga the manga to bind.
      */
     override fun onSetValues(manga: Manga) {
-        view.title.text = manga.title
-        view.title.setTextColor(if (manga.favorite) favoriteColor else unfavoriteColor)
+        title.text = manga.title
+        title.setTextColor(if (manga.favorite) favoriteColor else unfavoriteColor)
 
         setImage(manga)
     }
 
     override fun setImage(manga: Manga) {
-        GlideApp.with(view.context).clear(view.thumbnail)
+        GlideApp.with(view.context).clear(thumbnail)
         if (!manga.thumbnail_url.isNullOrEmpty()) {
             GlideApp.with(view.context)
                     .load(manga)
@@ -46,7 +46,7 @@ class CatalogueListHolder(private val view: View, adapter: FlexibleAdapter<*>) :
                     .dontAnimate()
                     .skipMemoryCache(true)
                     .placeholder(android.R.color.transparent)
-                    .into(view.thumbnail)
+                    .into(thumbnail)
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/global_search/CatalogueSearchCardHolder.kt

@@ -2,14 +2,14 @@ package eu.kanade.tachiyomi.ui.catalogue.global_search
 
 import android.view.View
 import com.bumptech.glide.load.engine.DiskCacheStrategy
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.glide.GlideApp
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 import eu.kanade.tachiyomi.widget.StateImageViewTarget
-import kotlinx.android.synthetic.main.catalogue_global_search_controller_card_item.view.*
+import kotlinx.android.synthetic.main.catalogue_global_search_controller_card_item.*
 
 class CatalogueSearchCardHolder(view: View, adapter: CatalogueSearchCardAdapter)
-    : FlexibleViewHolder(view, adapter) {
+    : BaseFlexibleViewHolder(view, adapter) {
 
     init {
         // Call onMangaClickListener when item is pressed.
@@ -22,13 +22,13 @@ class CatalogueSearchCardHolder(view: View, adapter: CatalogueSearchCardAdapter)
     }
 
     fun bind(manga: Manga) {
-        itemView.tvTitle.text = manga.title
+        tvTitle.text = manga.title
 
         setImage(manga)
     }
 
     fun setImage(manga: Manga) {
-        GlideApp.with(itemView.context).clear(itemView.itemImage)
+        GlideApp.with(itemView.context).clear(itemImage)
         if (!manga.thumbnail_url.isNullOrEmpty()) {
             GlideApp.with(itemView.context)
                     .load(manga)
@@ -36,7 +36,7 @@ class CatalogueSearchCardHolder(view: View, adapter: CatalogueSearchCardAdapter)
                     .centerCrop()
                     .skipMemoryCache(true)
                     .placeholder(android.R.color.transparent)
-                    .into(StateImageViewTarget(itemView.itemImage, itemView.progress))
+                    .into(StateImageViewTarget(itemImage, progress))
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/catalogue/global_search/CatalogueSearchHolder.kt

@@ -2,14 +2,14 @@ package eu.kanade.tachiyomi.ui.catalogue.global_search
 
 import android.support.v7.widget.LinearLayoutManager
 import android.view.View
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 import eu.kanade.tachiyomi.util.getResourceColor
 import eu.kanade.tachiyomi.util.gone
 import eu.kanade.tachiyomi.util.setVectorCompat
 import eu.kanade.tachiyomi.util.visible
-import kotlinx.android.synthetic.main.catalogue_global_search_controller_card.view.*
+import kotlinx.android.synthetic.main.catalogue_global_search_controller_card.*
 
 /**
  * Holder that binds the [CatalogueSearchItem] containing catalogue cards.
@@ -17,7 +17,8 @@ import kotlinx.android.synthetic.main.catalogue_global_search_controller_card.vi
  * @param view view of [CatalogueSearchItem]
  * @param adapter instance of [CatalogueSearchAdapter]
  */
-class CatalogueSearchHolder(view: View, val adapter: CatalogueSearchAdapter) : FlexibleViewHolder(view, adapter) {
+class CatalogueSearchHolder(view: View, val adapter: CatalogueSearchAdapter) :
+        BaseFlexibleViewHolder(view, adapter) {
 
     /**
      * Adapter containing manga from search results.
@@ -27,14 +28,12 @@ class CatalogueSearchHolder(view: View, val adapter: CatalogueSearchAdapter) : F
     private var lastBoundResults: List<CatalogueSearchCardItem>? = null
 
     init {
-        with(itemView) {
-            // Set layout horizontal.
-            recycler.layoutManager = LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false)
-            recycler.adapter = mangaAdapter
+        // Set layout horizontal.
+        recycler.layoutManager = LinearLayoutManager(view.context, LinearLayoutManager.HORIZONTAL, false)
+        recycler.adapter = mangaAdapter
 
-            nothing_found_icon.setVectorCompat(R.drawable.ic_search_black_112dp,
-                    context.getResourceColor(android.R.attr.textColorHint))
-        }
+        nothing_found_icon.setVectorCompat(R.drawable.ic_search_black_112dp,
+                view.context.getResourceColor(android.R.attr.textColorHint))
     }
 
     /**
@@ -46,29 +45,27 @@ class CatalogueSearchHolder(view: View, val adapter: CatalogueSearchAdapter) : F
         val source = item.source
         val results = item.results
 
-        with(itemView) {
-            // Set Title witch country code if available.
-            title.text = if (!source.lang.isEmpty()) "${source.name} (${source.lang})" else source.name
+        // Set Title witch country code if available.
+        title.text = if (!source.lang.isEmpty()) "${source.name} (${source.lang})" else source.name
 
-            when {
-                results == null -> {
-                    progress.visible()
-                    nothing_found.gone()
-                }
-                results.isEmpty() -> {
-                    progress.gone()
-                    nothing_found.visible()
-                }
-                else -> {
-                    progress.gone()
-                    nothing_found.gone()
-                }
+        when {
+            results == null -> {
+                progress.visible()
+                nothing_found.gone()
+            }
+            results.isEmpty() -> {
+                progress.gone()
+                nothing_found.visible()
             }
-            if (results !== lastBoundResults) {
-                mangaAdapter.updateDataSet(results)
-                lastBoundResults = results
+            else -> {
+                progress.gone()
+                nothing_found.gone()
             }
         }
+        if (results !== lastBoundResults) {
+            mangaAdapter.updateDataSet(results)
+            lastBoundResults = results
+        }
     }
 
     /**

app/src/main/java/eu/kanade/tachiyomi/ui/category/CategoryHolder.kt

@@ -1,14 +1,10 @@
 package eu.kanade.tachiyomi.ui.category
 
-import android.graphics.Color
-import android.graphics.Typeface
 import android.view.View
-import com.amulyakhare.textdrawable.TextDrawable
-import com.amulyakhare.textdrawable.util.ColorGenerator
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 import eu.kanade.tachiyomi.util.getRound
-import kotlinx.android.synthetic.main.categories_item.view.*
+import kotlinx.android.synthetic.main.categories_item.*
 
 /**
  * Holder used to display category items.
@@ -16,16 +12,16 @@ import kotlinx.android.synthetic.main.categories_item.view.*
  * @param view The view used by category items.
  * @param adapter The adapter containing this holder.
  */
-class CategoryHolder(view: View, val adapter: CategoryAdapter) : FlexibleViewHolder(view, adapter) {
+class CategoryHolder(view: View, val adapter: CategoryAdapter) : BaseFlexibleViewHolder(view, adapter) {
 
     init {
         // Create round letter image onclick to simulate long click
-        itemView.image.setOnClickListener {
+        image.setOnClickListener {
             // Simulate long click on this view to enter selection mode
             onLongClick(view)
         }
 
-        setDragHandleView(itemView.reorder)
+        setDragHandleView(reorder)
     }
 
     /**
@@ -35,11 +31,11 @@ class CategoryHolder(view: View, val adapter: CategoryAdapter) : FlexibleViewHol
      */
     fun bind(category: Category) {
         // Set capitalized title.
-        itemView.title.text = category.name.capitalize()
+        title.text = category.name.capitalize()
 
         // Update circle letter image.
         itemView.post {
-            itemView.image.setImageDrawable(itemView.image.getRound(category.name.take(1).toUpperCase(),false))
+            image.setImageDrawable(image.getRound(category.name.take(1).toUpperCase(),false))
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/download/DownloadHolder.kt

@@ -1,8 +1,8 @@
 package eu.kanade.tachiyomi.ui.download
 
-import android.support.v7.widget.RecyclerView
 import android.view.View
 import eu.kanade.tachiyomi.data.download.model.Download
+import eu.kanade.tachiyomi.ui.base.holder.BaseViewHolder
 import kotlinx.android.synthetic.main.download_item.view.*
 
 /**
@@ -12,7 +12,7 @@ import kotlinx.android.synthetic.main.download_item.view.*
  * @param view the inflated view for this holder.
  * @constructor creates a new download holder.
  */
-class DownloadHolder(private val view: View) : RecyclerView.ViewHolder(view) {
+class DownloadHolder(private val view: View) : BaseViewHolder(view) {
 
     private lateinit var download: Download
 

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

@@ -5,7 +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 kotlinx.android.synthetic.main.catalogue_grid_item.view.*
+import kotlinx.android.synthetic.main.catalogue_grid_item.*
 
 /**
  * Class used to hold the displayed data of a manga in the library, like the cover or the title.
@@ -30,30 +30,28 @@ class LibraryGridHolder(
      */
     override fun onSetValues(item: LibraryItem) {
         // Update the title of the manga.
-        view.title.text = item.manga.title
+        title.text = item.manga.title
 
         // Update the unread count and its visibility.
-        with(view.unread_text) {
+        with(unread_text) {
             visibility = if (item.manga.unread > 0) View.VISIBLE else View.GONE
             text = item.manga.unread.toString()
         }
         // Update the download count and its visibility.
-        with(view.download_text) {
+        with(download_text) {
             visibility = if (item.downloadCount > 0) View.VISIBLE else View.GONE
             text = item.downloadCount.toString()
         }
         //set local visibility if its local manga
-        with(view.local_text) {
-            visibility = if(item.manga.source == LocalSource.ID) View.VISIBLE else View.GONE
-        }
+        local_text.visibility = if(item.manga.source == LocalSource.ID) View.VISIBLE else View.GONE
 
         // Update the cover.
-        GlideApp.with(view.context).clear(view.thumbnail)
+        GlideApp.with(view.context).clear(thumbnail)
         GlideApp.with(view.context)
                 .load(item.manga)
                 .diskCacheStrategy(DiskCacheStrategy.RESOURCE)
                 .centerCrop()
-                .into(view.thumbnail)
+                .into(thumbnail)
     }
 
 }

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

@@ -2,7 +2,7 @@ package eu.kanade.tachiyomi.ui.library
 
 import android.view.View
 import eu.davidea.flexibleadapter.FlexibleAdapter
-import eu.davidea.viewholders.FlexibleViewHolder
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 
 /**
  * Generic class used to hold the displayed data of a manga in the library.
@@ -14,7 +14,7 @@ import eu.davidea.viewholders.FlexibleViewHolder
 abstract class LibraryHolder(
         view: View,
         adapter: FlexibleAdapter<*>
-) : FlexibleViewHolder(view, adapter) {
+) : BaseFlexibleViewHolder(view, adapter) {
 
     /**
      * Method called from [LibraryCategoryAdapter.onBindViewHolder]. It updates the data for this

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

@@ -5,7 +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 kotlinx.android.synthetic.main.catalogue_list_item.view.*
+import kotlinx.android.synthetic.main.catalogue_list_item.*
 
 /**
  * Class used to hold the displayed data of a manga in the library, like the cover or the title.
@@ -30,38 +30,36 @@ class LibraryListHolder(
      */
     override fun onSetValues(item: LibraryItem) {
         // Update the title of the manga.
-        itemView.title.text = item.manga.title
+        title.text = item.manga.title
 
         // Update the unread count and its visibility.
-        with(itemView.unread_text) {
+        with(unread_text) {
             visibility = if (item.manga.unread > 0) View.VISIBLE else View.GONE
             text = item.manga.unread.toString()
         }
         // Update the download count and its visibility.
-        with(itemView.download_text) {
+        with(download_text) {
             visibility = if (item.downloadCount > 0) View.VISIBLE else View.GONE
             text = "${item.downloadCount}"
         }
         //show local text badge if local manga
-        with(itemView.local_text) {
-            visibility = if (item.manga.source == LocalSource.ID) View.VISIBLE else View.GONE
-        }
+        local_text.visibility = if (item.manga.source == LocalSource.ID) View.VISIBLE else View.GONE
 
         // Create thumbnail onclick to simulate long click
-        itemView.thumbnail.setOnClickListener {
+        thumbnail.setOnClickListener {
             // Simulate long click on this view to enter selection mode
             onLongClick(itemView)
         }
 
         // Update the cover.
-        GlideApp.with(itemView.context).clear(itemView.thumbnail)
+        GlideApp.with(itemView.context).clear(thumbnail)
         GlideApp.with(itemView.context)
                 .load(item.manga)
                 .diskCacheStrategy(DiskCacheStrategy.RESOURCE)
                 .centerCrop()
                 .circleCrop()
                 .dontAnimate()
-                .into(itemView.thumbnail)
+                .into(thumbnail)
     }
 
 }

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

@@ -2,41 +2,41 @@ package eu.kanade.tachiyomi.ui.manga.chapter
 
 import android.view.View
 import android.widget.PopupMenu
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.download.model.Download
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 import eu.kanade.tachiyomi.util.getResourceColor
 import eu.kanade.tachiyomi.util.gone
 import eu.kanade.tachiyomi.util.setVectorCompat
-import kotlinx.android.synthetic.main.chapters_item.view.*
+import kotlinx.android.synthetic.main.chapters_item.*
 import java.util.*
 
 class ChapterHolder(
         private val view: View,
         private val adapter: ChaptersAdapter
-) : FlexibleViewHolder(view, adapter) {
+) : BaseFlexibleViewHolder(view, adapter) {
 
     init {
         // We need to post a Runnable to show the popup to make sure that the PopupMenu is
         // correctly positioned. The reason being that the view may change position before the
         // PopupMenu is shown.
-        view.chapter_menu.setOnClickListener { it.post { showPopupMenu(it) } }
+        chapter_menu.setOnClickListener { it.post { showPopupMenu(it) } }
     }
 
-    fun bind(item: ChapterItem, manga: Manga) = with(view) {
+    fun bind(item: ChapterItem, manga: Manga) {
         val chapter = item.chapter
 
         chapter_title.text = when (manga.displayMode) {
             Manga.DISPLAY_NUMBER -> {
                 val number = adapter.decimalFormat.format(chapter.chapter_number.toDouble())
-                context.getString(R.string.display_mode_chapter, number)
+                itemView.context.getString(R.string.display_mode_chapter, number)
             }
             else -> chapter.name
         }
 
         // Set the correct drawable for dropdown and update the tint to match theme.
-        view.chapter_menu.setVectorCompat(R.drawable.ic_more_horiz_black_24dp, view.context.getResourceColor(R.attr.icon_color))
+        chapter_menu.setVectorCompat(R.drawable.ic_more_horiz_black_24dp, view.context.getResourceColor(R.attr.icon_color))
 
         // Set correct text color
         chapter_title.setTextColor(if (chapter.read) adapter.readColor else adapter.unreadColor)
@@ -53,14 +53,14 @@ class ChapterHolder(
         chapter_scanlator.text = chapter.scanlator
         //allow longer titles if there is no scanlator (most sources)
         if (chapter_scanlator.text.isNullOrBlank()) {
-            chapter_title.setMaxLines(2)
+            chapter_title.maxLines = 2
             chapter_scanlator.gone()
         } else {
-            chapter_title.setMaxLines(1)
+            chapter_title.maxLines = 1
         }
 
         chapter_pages.text = if (!chapter.read && chapter.last_page_read > 0) {
-            context.getString(R.string.chapter_progress, chapter.last_page_read + 1)
+            itemView.context.getString(R.string.chapter_progress, chapter.last_page_read + 1)
         } else {
             ""
         }
@@ -68,7 +68,7 @@ class ChapterHolder(
         notifyStatus(item.status)
     }
 
-    fun notifyStatus(status: Int) = with(view.download_text) {
+    fun notifyStatus(status: Int) = with(download_text) {
         when (status) {
             Download.QUEUE -> setText(R.string.chapter_queued)
             Download.DOWNLOADING -> setText(R.string.chapter_downloading)

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

@@ -1,29 +1,29 @@
 package eu.kanade.tachiyomi.ui.manga.track
 
 import android.annotation.SuppressLint
-import android.support.v7.widget.RecyclerView
 import android.view.View
 import eu.kanade.tachiyomi.R
-import kotlinx.android.synthetic.main.track_item.view.*
+import eu.kanade.tachiyomi.ui.base.holder.BaseViewHolder
+import kotlinx.android.synthetic.main.track_item.*
 
-class TrackHolder(view: View, adapter: TrackAdapter) : RecyclerView.ViewHolder(view) {
+class TrackHolder(view: View, adapter: TrackAdapter) : BaseViewHolder(view) {
     
     init {
         val listener = adapter.rowClickListener
-        view.title_container.setOnClickListener { listener.onTitleClick(adapterPosition) }
-        view.status_container.setOnClickListener { listener.onStatusClick(adapterPosition) }
-        view.chapters_container.setOnClickListener { listener.onChaptersClick(adapterPosition) }
-        view.score_container.setOnClickListener { listener.onScoreClick(adapterPosition) }
+        title_container.setOnClickListener { listener.onTitleClick(adapterPosition) }
+        status_container.setOnClickListener { listener.onStatusClick(adapterPosition) }
+        chapters_container.setOnClickListener { listener.onChaptersClick(adapterPosition) }
+        score_container.setOnClickListener { listener.onScoreClick(adapterPosition) }
     }
 
     @SuppressLint("SetTextI18n")
     @Suppress("DEPRECATION")
-    fun bind(item: TrackItem) = with(itemView) {
+    fun bind(item: TrackItem) {
         val track = item.track
         track_logo.setImageResource(item.service.getLogo())
         logo.setBackgroundColor(item.service.getLogoColor())
         if (track != null) {
-            track_title.setTextAppearance(context, R.style.TextAppearance_Regular_Body1_Secondary)
+            track_title.setTextAppearance(itemView.context, R.style.TextAppearance_Regular_Body1_Secondary)
             track_title.setAllCaps(false)
             track_title.text = track.title
             track_chapters.text = "${track.last_chapter_read}/" +
@@ -31,7 +31,7 @@ class TrackHolder(view: View, adapter: TrackAdapter) : RecyclerView.ViewHolder(v
             track_status.text = item.service.getStatus(track.status)
             track_score.text = if (track.score == 0f) "-" else item.service.displayScore(track)
         } else {
-            track_title.setTextAppearance(context, R.style.TextAppearance_Medium_Button)
+            track_title.setTextAppearance(itemView.context, R.style.TextAppearance_Medium_Button)
             track_title.setText(R.string.action_edit)
             track_chapters.text = ""
             track_score.text = ""

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonHolder.kt

@@ -1,6 +1,5 @@
 package eu.kanade.tachiyomi.ui.reader.viewer.webtoon
 
-import android.support.v7.widget.RecyclerView
 import android.view.MotionEvent
 import android.view.View
 import android.view.ViewGroup
@@ -11,10 +10,11 @@ import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
 import com.hippo.unifile.UniFile
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.source.model.Page
+import eu.kanade.tachiyomi.ui.base.holder.BaseViewHolder
 import eu.kanade.tachiyomi.ui.reader.ReaderActivity
 import eu.kanade.tachiyomi.ui.reader.viewer.base.PageDecodeErrorLayout
 import eu.kanade.tachiyomi.util.inflate
-import kotlinx.android.synthetic.main.reader_webtoon_item.view.*
+import kotlinx.android.synthetic.main.reader_webtoon_item.*
 import rx.Observable
 import rx.Subscription
 import rx.android.schedulers.AndroidSchedulers
@@ -31,7 +31,7 @@ import java.util.concurrent.TimeUnit
  * @constructor creates a new webtoon holder.
  */
 class WebtoonHolder(private val view: View, private val adapter: WebtoonAdapter) :
-        RecyclerView.ViewHolder(view) {
+        BaseViewHolder(view) {
 
     /**
      * Page of a chapter.
@@ -54,7 +54,7 @@ class WebtoonHolder(private val view: View, private val adapter: WebtoonAdapter)
     private var decodeErrorLayout: View? = null
 
     init {
-        with(view.image_view) {
+        with(image_view) {
             setMaxTileSize(readerActivity.maxBitmapSize)
             setDoubleTapZoomStyle(SubsamplingScaleImageView.ZOOM_FOCUS_FIXED)
             setPanLimit(SubsamplingScaleImageView.PAN_LIMIT_INSIDE)
@@ -78,11 +78,11 @@ class WebtoonHolder(private val view: View, private val adapter: WebtoonAdapter)
             })
         }
 
-        view.progress_container.layoutParams = FrameLayout.LayoutParams(
+        progress_container.layoutParams = FrameLayout.LayoutParams(
                 MATCH_PARENT, webtoonReader.screenHeight)
 
         view.setOnTouchListener(adapter.touchListener)
-        view.retry_button.setOnTouchListener { _, event ->
+        retry_button.setOnTouchListener { _, event ->
             if (event.action == MotionEvent.ACTION_UP) {
                 readerActivity.presenter.retryPage(page)
             }
@@ -111,9 +111,9 @@ class WebtoonHolder(private val view: View, private val adapter: WebtoonAdapter)
             (view as ViewGroup).removeView(it)
             decodeErrorLayout = null
         }
-        view.image_view.recycle()
-        view.image_view.visibility = View.GONE
-        view.progress_container.visibility = View.VISIBLE
+        image_view.recycle()
+        image_view.visibility = View.GONE
+        progress_container.visibility = View.VISIBLE
     }
 
     /**
@@ -150,7 +150,7 @@ class WebtoonHolder(private val view: View, private val adapter: WebtoonAdapter)
                 .onBackpressureLatest()
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe { progress ->
-                    view.progress_text.text = if (progress > 0) {
+                    progress_text.text = if (progress > 0) {
                         view.context.getString(R.string.download_progress, progress)
                     } else {
                         view.context.getString(R.string.downloading)
@@ -279,14 +279,14 @@ class WebtoonHolder(private val view: View, private val adapter: WebtoonAdapter)
      * Called when the image is decoded and going to be displayed.
      */
     private fun onImageDecoded() {
-        view.progress_container.visibility = View.GONE
+        progress_container.visibility = View.GONE
     }
 
     /**
      * Called when the image fails to decode.
      */
     private fun onImageDecodeError() {
-        view.progress_container.visibility = View.GONE
+        progress_container.visibility = View.GONE
 
         val page = page ?: return
         if (decodeErrorLayout != null || !webtoonReader.isAdded) return

app/src/main/java/eu/kanade/tachiyomi/ui/recent_updates/RecentChapterHolder.kt

@@ -3,13 +3,13 @@ package eu.kanade.tachiyomi.ui.recent_updates
 import android.view.View
 import android.widget.PopupMenu
 import com.bumptech.glide.load.engine.DiskCacheStrategy
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.download.model.Download
 import eu.kanade.tachiyomi.data.glide.GlideApp
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
 import eu.kanade.tachiyomi.util.getResourceColor
 import eu.kanade.tachiyomi.util.setVectorCompat
-import kotlinx.android.synthetic.main.recent_chapters_item.view.*
+import kotlinx.android.synthetic.main.recent_chapters_item.*
 
 /**
  * Holder that contains chapter item
@@ -22,7 +22,7 @@ import kotlinx.android.synthetic.main.recent_chapters_item.view.*
  * @constructor creates a new recent chapter holder.
  */
 class RecentChapterHolder(private val view: View, private val adapter: RecentChaptersAdapter) :
-        FlexibleViewHolder(view, adapter) {
+        BaseFlexibleViewHolder(view, adapter) {
 
     /**
      * Color of read chapter
@@ -43,8 +43,8 @@ class RecentChapterHolder(private val view: View, private val adapter: RecentCha
         // We need to post a Runnable to show the popup to make sure that the PopupMenu is
         // correctly positioned. The reason being that the view may change position before the
         // PopupMenu is shown.
-        view.chapter_menu.setOnClickListener { it.post { showPopupMenu(it) } }
-        view.manga_cover.setOnClickListener {
+        chapter_menu.setOnClickListener { it.post { showPopupMenu(it) } }
+        manga_cover.setOnClickListener {
             adapter.coverClickListener.onCoverClick(adapterPosition)
         }
     }
@@ -58,31 +58,31 @@ class RecentChapterHolder(private val view: View, private val adapter: RecentCha
         this.item = item
 
         // Set chapter title
-        view.chapter_title.text = item.chapter.name
+        chapter_title.text = item.chapter.name
 
         // Set manga title
-        view.manga_title.text = item.manga.title
+        manga_title.text = item.manga.title
 
         // Set the correct drawable for dropdown and update the tint to match theme.
-        view.chapter_menu_icon.setVectorCompat(R.drawable.ic_more_horiz_black_24dp, view.context.getResourceColor(R.attr.icon_color))
+        chapter_menu_icon.setVectorCompat(R.drawable.ic_more_horiz_black_24dp, view.context.getResourceColor(R.attr.icon_color))
 
         // Set cover
-        GlideApp.with(itemView.context).clear(itemView.manga_cover)
+        GlideApp.with(itemView.context).clear(manga_cover)
         if (!item.manga.thumbnail_url.isNullOrEmpty()) {
             GlideApp.with(itemView.context)
                     .load(item.manga)
                     .diskCacheStrategy(DiskCacheStrategy.RESOURCE)
                     .circleCrop()
-                    .into(itemView.manga_cover)
+                    .into(manga_cover)
         }
 
         // Check if chapter is read and set correct color
         if (item.chapter.read) {
-            view.chapter_title.setTextColor(readColor)
-            view.manga_title.setTextColor(readColor)
+            chapter_title.setTextColor(readColor)
+            manga_title.setTextColor(readColor)
         } else {
-            view.chapter_title.setTextColor(unreadColor)
-            view.manga_title.setTextColor(unreadColor)
+            chapter_title.setTextColor(unreadColor)
+            manga_title.setTextColor(unreadColor)
         }
 
         // Set chapter status
@@ -94,7 +94,7 @@ class RecentChapterHolder(private val view: View, private val adapter: RecentCha
      *
      * @param status download status
      */
-    fun notifyStatus(status: Int) = with(view.download_text) {
+    fun notifyStatus(status: Int) = with(download_text) {
         when (status) {
             Download.QUEUE -> setText(R.string.chapter_queued)
             Download.DOWNLOADING -> setText(R.string.chapter_downloading)

app/src/main/java/eu/kanade/tachiyomi/ui/recently_read/RecentlyReadHolder.kt

@@ -2,11 +2,11 @@ package eu.kanade.tachiyomi.ui.recently_read
 
 import android.view.View
 import com.bumptech.glide.load.engine.DiskCacheStrategy
-import eu.davidea.viewholders.FlexibleViewHolder
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.MangaChapterHistory
 import eu.kanade.tachiyomi.data.glide.GlideApp
-import kotlinx.android.synthetic.main.recently_read_item.view.*
+import eu.kanade.tachiyomi.ui.base.holder.BaseFlexibleViewHolder
+import kotlinx.android.synthetic.main.recently_read_item.*
 import java.util.*
 
 /**
@@ -21,18 +21,18 @@ import java.util.*
 class RecentlyReadHolder(
         view: View,
         val adapter: RecentlyReadAdapter
-) : FlexibleViewHolder(view, adapter) {
+) : BaseFlexibleViewHolder(view, adapter) {
 
     init {
-        itemView.remove.setOnClickListener {
+        remove.setOnClickListener {
             adapter.removeClickListener.onRemoveClick(adapterPosition)
         }
 
-        itemView.resume.setOnClickListener {
+        resume.setOnClickListener {
             adapter.resumeClickListener.onResumeClick(adapterPosition)
         }
 
-        itemView.cover.setOnClickListener {
+        cover.setOnClickListener {
             adapter.coverClickListener.onCoverClick(adapterPosition)
         }
     }
@@ -47,24 +47,24 @@ class RecentlyReadHolder(
         val (manga, chapter, history) = item
 
         // Set manga title
-        itemView.manga_title.text = manga.title
+        manga_title.text = manga.title
 
         // Set source + chapter title
         val formattedNumber = adapter.decimalFormat.format(chapter.chapter_number.toDouble())
-        itemView.manga_source.text = itemView.context.getString(R.string.recent_manga_source)
+        manga_source.text = itemView.context.getString(R.string.recent_manga_source)
                 .format(adapter.sourceManager.get(manga.source)?.toString(), formattedNumber)
 
         // Set last read timestamp title
-        itemView.last_read.text = adapter.dateFormat.format(Date(history.last_read))
+        last_read.text = adapter.dateFormat.format(Date(history.last_read))
 
         // Set cover
-        GlideApp.with(itemView.context).clear(itemView.cover)
+        GlideApp.with(itemView.context).clear(cover)
         if (!manga.thumbnail_url.isNullOrEmpty()) {
             GlideApp.with(itemView.context)
                     .load(manga)
                     .diskCacheStrategy(DiskCacheStrategy.RESOURCE)
                     .centerCrop()
-                    .into(itemView.cover)
+                    .into(cover)
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAboutController.kt

@@ -1,6 +1,8 @@
 package eu.kanade.tachiyomi.ui.setting
 
 import android.app.Dialog
+import android.content.Intent
+import android.net.Uri
 import android.os.Bundle
 import android.support.v7.preference.PreferenceScreen
 import android.view.View
@@ -22,8 +24,6 @@ import java.text.ParseException
 import java.text.SimpleDateFormat
 import java.util.*
 import eu.kanade.tachiyomi.data.preference.PreferenceKeys as Keys
-import android.content.Intent
-import android.net.Uri
 
 
 class SettingsAboutController : SettingsController() {

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsSourcesController.kt

@@ -3,8 +3,6 @@ package eu.kanade.tachiyomi.ui.setting
 import android.graphics.drawable.Drawable
 import android.support.v7.preference.PreferenceGroup
 import android.support.v7.preference.PreferenceScreen
-import com.bluelinelabs.conductor.ControllerChangeHandler
-import com.bluelinelabs.conductor.ControllerChangeType
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.preference.getOrDefault
 import eu.kanade.tachiyomi.source.SourceManager