photo loads with preview

app/src/main/java/com/biganto/visual/roompark/data/repository/mapper/raw2entity.kt

@@ -93,7 +93,7 @@ fun fromRaw(raw:ResolutionRaw) =
 
 
 
-//fun fromRaw(raw: List<FeedRaw>):List<FeedEntity> = List(raw.size) { index-> fromRaw(raw[index]) }
+//fun fromRaw(raw: List<FeedRaw>):List<FeedEntity> = List(raw.displaySize) { index-> fromRaw(raw[index]) }
 
 
 fun <E,M> fromRawList(raw: List<E>,block:(E)->M):List<M> = List(raw.size) { index-> block(raw[index]) }

app/src/main/java/com/biganto/visual/roompark/domain/model/albums.kt

@@ -2,6 +2,7 @@ package com.biganto.visual.roompark.domain.model
 
 import com.biganto.visual.roompark.data.repository.db.requrey.model.GalleryPhotoEntity
 import com.biganto.visual.roompark.data.repository.db.requrey.model.ImageAlbumEntity
+import timber.log.Timber
 import java.util.*
 
 /**
@@ -48,8 +49,9 @@ data class PhotoModel(
     fun optimalResolution(width:Int,height:Int) =
         resolutionList
             .asSequence()
-            .filter { it.resWidth >= width }
-            .filter { it.resHeight >= height }
+            .filter { it.resWidth >= width || it.resWidth >= height }
+            .filter { it.resHeight >= height || it.resHeight >= width }
+            .onEach { Timber.d("res filtered: ${it.resWidth} / ${it.resHeight}") }
             .minBy { it.resHeight * it.resWidth }
             ?: resolutionList.maxBy { it.resHeight * it.resWidth }!!
 

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

@@ -43,7 +43,7 @@ class PhotoScreenController :
 
     private fun bindRecycler() {
         photoViewPager.isNestedScrollingEnabled = false
-
+        photoViewPager.offscreenPageLimit = 2
         photoViewPager.adapter = PhotoViewerAdapter()
     }
 

app/src/main/java/com/biganto/visual/roompark/presentation/screen/photo/util/PhotoViewerAdapter.kt

 package com.biganto.visual.roompark.presentation.screen.photo.util
 
+import android.app.Activity
+import android.graphics.Bitmap
+import android.graphics.Point
+import android.graphics.drawable.Drawable
+import android.util.DisplayMetrics
 import android.view.View
 import butterknife.BindView
 import com.biganto.visual.roompark.R
@@ -9,7 +14,12 @@ import com.biganto.visual.roompark.presentation.screen.settings.util.CommonRecyc
 import com.biganto.visual.roompark.presentation.screen.settings.util.CommonViewHolder
 import com.github.chrisbanes.photoview.PhotoView
 import com.google.android.material.textview.MaterialTextView
+import com.squareup.picasso.Callback
 import com.squareup.picasso.Picasso
+import com.squareup.picasso.Target
+import jp.wasabeef.picasso.transformations.BlurTransformation
+import jp.wasabeef.picasso.transformations.ColorFilterTransformation
+import timber.log.Timber
 
 
 /**
@@ -34,20 +44,53 @@ class PhotoViewerViewHolder(itemView: View) : CommonViewHolder<PhotoModel>(itemV
     @BindView(R.id.photo_view) lateinit var photoView:PhotoView
     @BindView(R.id.photo_description) lateinit var photoDesc:MaterialTextView
 
-    val picassoAsync: Picasso by lazy {
+    private val displayMetrics = DisplayMetrics()
+    private val displaySize = Point()
+
+    private val picassoAsync: Picasso by lazy {
         return@lazy RoomParkApplication.component.providePicassoAsync()
     }
 
+    private val _t = object :Target{
+        override fun onPrepareLoad(placeHolderDrawable: Drawable?) {
+            Timber.d("lalala")
+        }
+
+        override fun onBitmapFailed(e: java.lang.Exception?, errorDrawable: Drawable?) {
+            Timber.e(e)
+        }
+
+        override fun onBitmapLoaded(bitmap: Bitmap?, from: Picasso.LoadedFrom?) {
+            Timber.d("bitmap loaded: $bitmap")
+            photoView.setImageBitmap(bitmap)
+        }
+    }
+
     override fun onViewBound(model: PhotoModel) {
 
         photoDesc.visibility = if (model.description.isNullOrBlank()) View.GONE else View.VISIBLE
-        model.description?.let{ photoDesc.text = it}
-        model.optimalResolution(photoView.width,photoView.height).let {
+        model.description?.let { photoDesc.text = it }
+
+        (itemView.context as Activity).windowManager.defaultDisplay.getSize(displaySize)
 
+        model.resolutionList.minBy { it.resHeight * it.resWidth }?.let { photoRes ->
             picassoAsync
+                .load(photoRes.url)
+                .transform(BlurTransformation(itemView.context, 13, 1))
+                .transform(ColorFilterTransformation(0xCC000000.toInt()))
+                .into(photoView, object : Callback {
+                    override fun onSuccess() {
+                            model.optimalResolution(displaySize.x, displaySize.y).let {
+                                Timber.d("goonna load image with ${it.resWidth} / ${it.resHeight}")
+                                Picasso.get()
                                     .load(it.url)
-//                .transform(BlurTransformation(itemView.context,13,2))
-                .into(photoView)
+                                    .into(_t)
+                            }
+                    }
+                    override fun onError(e: Exception?) {
+                        Timber.e(e)
+                    }
+                })
         }
     }
 }

app/src/main/java/com/biganto/visual/roompark/util/extensions/ext.kt

@@ -67,12 +67,12 @@ fun Bitmap.scaleCenterCrop(viewHolder:View): Bitmap {
 
     Timber.d(" left/top $xScale/$yScale")
 
-    // Now get the size of the source bitmap when scaled
+    // Now get the displaySize of the source bitmap when scaled
     val scaledWidth = scale * sourceWidth
     val scaledHeight = scale * sourceHeight
 
     // Let's find out the upper left coordinates if the scaled bitmap
-    // should be centered in the new size give by the parameters
+    // should be centered in the new displaySize give by the parameters
     val left = (viewHolder.measuredWidth - scaledWidth) / 2
     val top = (viewHolder.measuredHeight - scaledHeight) / 2
 
@@ -82,7 +82,7 @@ fun Bitmap.scaleCenterCrop(viewHolder:View): Bitmap {
     // be
     val targetRect = RectF(left, top, left + scaledWidth, top + scaledHeight)
 
-    // Finally, we create a new bitmap of the specified size and draw our new,
+    // Finally, we create a new bitmap of the specified displaySize and draw our new,
     // scaled bitmap onto it.
     val dest = Bitmap.createBitmap(viewHolder.measuredWidth, viewHolder.measuredHeight, this.config)
     val canvas = Canvas(dest)