move slider to correct index

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

@@ -113,10 +113,12 @@ class PhotoScreenController :
         (photoViewPager.adapter as PhotosAdapter).setItems(
             viewState.list.asSequence().sortedBy{it.sort}.toList()
         )
-        photoViewPager.currentItem = viewState.selectedId
 
         slider.visibility= View.VISIBLE
         slider.setUpViewPager(photoViewPager)
+
+        photoViewPager.currentItem =
+            (photoViewPager.adapter as PhotosAdapter).indexById(viewState.selectedId)
     }
 
     private fun render(viewState: PhotoScreenViewState.AldumFetched) {
@@ -127,11 +129,12 @@ class PhotoScreenController :
     private fun render(viewState: PhotoScreenViewState.PhotoFetched){
         (photoViewPager.adapter as PhotosAdapter).setItems(arrayListOf(viewState.model))
     }
+
     private fun render(viewState: PhotoScreenViewState.PhotoSelected){
 //        (photoViewPager.adapter as PhotoViewerAdapter).setItems(arrayListOf(viewState.model))
     }
 
-
+    override fun handleBack(): Boolean {router.popController(this); return true}
 
     override fun getLayoutId(): Int = R.layout.photo_view_screen
 

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

@@ -177,6 +177,7 @@ class PhotoPreviewSlider @JvmOverloads constructor(
             texThread?.start()
             adapter?.let {adapter ->
                 texThread?.setAdapter(adapter.photosPreviewList)
+                texThread?.setIndex(vp?.currentItem?:0)
 //                texThread?.setIndex(min(_l.size,2))
             }?: error("adapter not ready!")
         }

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

@@ -25,6 +25,8 @@ class PhotosAdapter : CommonRecyclerAdapter<PhotosViewHolder, PhotoModel>() {
 
     }
 
+    fun indexById(id:Int):Int = list.indexOfFirst { it.photoId == id }
+
 
     override val vhKlazz = PhotosViewHolder::class
 

app/src/main/res/layout/photo_view_screen.xml

@@ -5,7 +5,7 @@
     android:id="@+id/linearLayout6"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@color/colorOpacityBackground">
+    android:background="#000000">
 
     <com.google.android.material.textview.MaterialTextView
         android:id="@+id/photoTitle"
@@ -61,8 +61,8 @@
         android:id="@+id/change_size_button"
         android:layout_width="24dp"
         android:layout_height="24dp"
-        android:layout_marginEnd="16dp"
         android:layout_marginTop="16dp"
+        android:layout_marginEnd="16dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toTopOf="@+id/guideline2"
         app:srcCompat="@drawable/iic_full_view" />