optimize picasso loader

app/src/main/java/com/biganto/visual/roompark/presentation/screen/albums/ScreenController.kt

@@ -55,6 +55,35 @@ class AlbumsScreenController :
 
 
 
+    val photosBackgroundTarget = object : com.squareup.picasso.Target {
+        override fun onPrepareLoad(placeHolderDrawable: Drawable?) {
+            Timber.d("View measures: 1 - " +
+                    "${nestedScrollView.width} " +
+                    "/ ${nestedScrollView.height} " +
+                    "/ ${nestedScrollView.measuredWidth} " +
+                    "/${nestedScrollView.measuredHeight}")
+            nestedScrollView.background = placeHolderDrawable
+        }
+
+        override fun onBitmapFailed(e: Exception?, errorDrawable: Drawable?) {
+            Timber.e(e)
+        }
+
+        override fun onBitmapLoaded(bitmap: Bitmap?, from: Picasso.LoadedFrom?) {
+            Timber.d("View measures: 2  - " +
+                    "${nestedScrollView.width} " +
+                    "/ ${nestedScrollView.height} " +
+                    "/ ${nestedScrollView.measuredWidth} " +
+                    "/${nestedScrollView.measuredHeight}"
+
+            )
+            val croppedBtimpa = bitmap?.scaleCenterCrop(nestedScrollView)
+            nestedScrollView.background =
+                BitmapDrawable(activity?.resources
+                    , croppedBtimpa)
+        }
+
+    }
 
 
     private fun bindRecycler() {
@@ -141,39 +170,11 @@ class AlbumsScreenController :
             Timber.d("URL TO LOAD BG $urlToLoadBg")
             urlToLoadBg.let {
 
-                Picasso.get()
+                Picasso.Builder(activity!!).build()
                     .load(it)
                     .transform(BlurTransformation(activity, 13, 2))
                     .transform(ColorFilterTransformation(0xCC000000.toInt()))
-                    .into(object : com.squareup.picasso.Target {
-                        override fun onPrepareLoad(placeHolderDrawable: Drawable?) {
-                            Timber.d("View measures: 1 - " +
-                                    "${nestedScrollView.width} " +
-                                    "/ ${nestedScrollView.height} " +
-                                    "/ ${nestedScrollView.measuredWidth} " +
-                                    "/${nestedScrollView.measuredHeight}")
-                            nestedScrollView.background = placeHolderDrawable
-                        }
-
-                        override fun onBitmapFailed(e: Exception?, errorDrawable: Drawable?) {
-                            Timber.e(e)
-                        }
-
-                        override fun onBitmapLoaded(bitmap: Bitmap?, from: Picasso.LoadedFrom?) {
-                            Timber.d("View measures: 2  - " +
-                                    "${nestedScrollView.width} " +
-                                    "/ ${nestedScrollView.height} " +
-                                    "/ ${nestedScrollView.measuredWidth} " +
-                                    "/${nestedScrollView.measuredHeight}"
-
-                            )
-                            val croppedBtimpa = bitmap?.scaleCenterCrop(nestedScrollView)
-                            nestedScrollView.background =
-                                BitmapDrawable(activity?.resources
-                                    , croppedBtimpa)
-                        }
-
-                    })
+                    .into(photosBackgroundTarget)
             }
         }
         catch (e:java.lang.Exception){Timber.e(e)}

app/src/main/java/com/biganto/visual/roompark/presentation/screen/albums/util/AlbumListAdapter.kt

@@ -5,6 +5,7 @@ import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.StaggeredGridLayoutManager
 import butterknife.BindView
 import com.biganto.visual.roompark.R
+import com.biganto.visual.roompark.base.RoomParkApplication
 import com.biganto.visual.roompark.domain.model.AlbumSortedModel
 import com.biganto.visual.roompark.domain.model.PhotoModel
 import com.biganto.visual.roompark.domain.model.PhotoResolutionModel
@@ -13,6 +14,7 @@ import com.biganto.visual.roompark.presentation.screen.settings.util.CommonViewH
 import com.biganto.visual.roompark.util.view_utils.image_view.RoundedImageView
 import com.google.android.material.textview.MaterialTextView
 import com.squareup.picasso.Picasso
+import java.util.concurrent.Executors
 
 /**
  * Created by Vladislav Bogdashkin on 16.10.2019.
@@ -51,6 +53,10 @@ class PhotosAdapter : CommonRecyclerAdapter<PhotosViewHolder, PhotoModel>() {
     override fun getVhLayout(): Int = R.layout.photo_preview_viewholder
 }
 
+val exSercv = Executors.newFixedThreadPool(4)
+val  picoAbuilder= Picasso.Builder(RoomParkApplication.component.provideAppContext())
+    .executor(exSercv)
+    .build()
 
 class PhotosViewHolder(itemView: View) : CommonViewHolder<PhotoModel>(itemView) {
 
@@ -58,7 +64,7 @@ class PhotosViewHolder(itemView: View) : CommonViewHolder<PhotoModel>(itemView)
 
     override fun onViewBound(model: PhotoModel) {
         model.resolutionList.lowelest()?.let {
-            Picasso.get()
+                picoAbuilder
                 .load(it.url)
                 .centerCrop()
                 .fit()