fix : snappy jump of media detail on launch

Author: rovertrack

app/src/main/java/fr/free/nrw/commons/media/MediaDetailFragment.kt

@@ -704,6 +704,8 @@ class MediaDetailFragment : CommonsDaggerSupportFragment(), CategoryEditHelper.C
             spacerParams.height = finalHeight
             binding.mediaDetailImageView.layoutParams = params
             binding.mediaDetailImageViewSpacer.layoutParams = spacerParams
+            if(finalHeight>0)
+                binding.mediaDetailScrollView.visibility = View.VISIBLE
         }
     }
 

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

@@ -26,7 +26,7 @@
 
     <com.facebook.drawee.view.SimpleDraweeView
       android:id="@+id/mediaDetailImageView"
-      android:layout_width="wrap_content"
+      android:layout_width="0dp"
       android:layout_height="@dimen/dimen_250"
       android:layout_gravity="center_horizontal"
       app:actualImageScaleType="none" />
@@ -37,7 +37,9 @@
       android:layout_height="wrap_content"
       android:background="@android:color/transparent"
       android:cacheColorHint="@android:color/transparent"
-      android:fillViewport="true">
+      android:fillViewport="true"
+      android:visibility="invisible"
+      tools:visibility="visible">
 
         <LinearLayout
           android:layout_width="match_parent"