diff --git a/vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailFragment.kt b/vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailFragment.kt
index a457587aa8..938ae6a1bb 100644
--- a/vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailFragment.kt
+++ b/vector/src/main/java/im/vector/riotx/features/home/room/detail/RoomDetailFragment.kt
@@ -1171,14 +1171,24 @@ class RoomDetailFragment @Inject constructor(
     }
 
     override fun onImageMessageClicked(messageImageContent: MessageImageInfoContent, mediaData: ImageContentRenderer.Data, view: View) {
-        navigator.openImageViewer(requireActivity(), roomDetailArgs.roomId, mediaData, view) { pairs ->
+        navigator.openMediaViewer(
+                activity = requireActivity(),
+                roomId = roomDetailArgs.roomId,
+                mediaData = mediaData,
+                view = view
+        ) { pairs ->
             pairs.add(Pair(roomToolbar, ViewCompat.getTransitionName(roomToolbar) ?: ""))
             pairs.add(Pair(composerLayout, ViewCompat.getTransitionName(composerLayout) ?: ""))
         }
     }
 
     override fun onVideoMessageClicked(messageVideoContent: MessageVideoContent, mediaData: VideoContentRenderer.Data, view: View) {
-        navigator.openVideoViewer(requireActivity(), roomDetailArgs.roomId, mediaData, view) { pairs ->
+        navigator.openMediaViewer(
+                activity = requireActivity(),
+                roomId = roomDetailArgs.roomId,
+                mediaData = mediaData,
+                view = view
+        ) { pairs ->
             pairs.add(Pair(roomToolbar, ViewCompat.getTransitionName(roomToolbar) ?: ""))
             pairs.add(Pair(composerLayout, ViewCompat.getTransitionName(composerLayout) ?: ""))
         }
@@ -1199,7 +1209,7 @@ class RoomDetailFragment @Inject constructor(
     override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
         if (allGranted(grantResults)) {
             when (requestCode) {
-                SAVE_ATTACHEMENT_REQUEST_CODE -> {
+                SAVE_ATTACHEMENT_REQUEST_CODE           -> {
                     sharedActionViewModel.pendingAction?.let {
                         handleActions(it)
                         sharedActionViewModel.pendingAction = null
diff --git a/vector/src/main/java/im/vector/riotx/features/media/VectorAttachmentViewerActivity.kt b/vector/src/main/java/im/vector/riotx/features/media/VectorAttachmentViewerActivity.kt
index c0b822c13a..38e3ccc69c 100644
--- a/vector/src/main/java/im/vector/riotx/features/media/VectorAttachmentViewerActivity.kt
+++ b/vector/src/main/java/im/vector/riotx/features/media/VectorAttachmentViewerActivity.kt
@@ -237,7 +237,6 @@ class VectorAttachmentViewerActivity : AttachmentViewerActivity(), BaseAttachmen
     }
 
     companion object {
-
         const val EXTRA_ARGS = "EXTRA_ARGS"
         const val EXTRA_IMAGE_DATA = "EXTRA_IMAGE_DATA"
         const val EXTRA_IN_MEMORY_DATA = "EXTRA_IN_MEMORY_DATA"
@@ -246,11 +245,11 @@ class VectorAttachmentViewerActivity : AttachmentViewerActivity(), BaseAttachmen
                       mediaData: AttachmentData,
                       roomId: String?,
                       eventId: String,
-                      inMemoryData: List<AttachmentData>?,
+                      inMemoryData: List<AttachmentData>,
                       sharedTransitionName: String?) = Intent(context, VectorAttachmentViewerActivity::class.java).also {
             it.putExtra(EXTRA_ARGS, Args(roomId, eventId, sharedTransitionName))
             it.putExtra(EXTRA_IMAGE_DATA, mediaData)
-            if (inMemoryData != null) {
+            if (inMemoryData.isNotEmpty()) {
                 it.putParcelableArrayListExtra(EXTRA_IN_MEMORY_DATA, ArrayList(inMemoryData))
             }
         }
diff --git a/vector/src/main/java/im/vector/riotx/features/navigation/DefaultNavigator.kt b/vector/src/main/java/im/vector/riotx/features/navigation/DefaultNavigator.kt
index 6acd041ecf..99eb69f539 100644
--- a/vector/src/main/java/im/vector/riotx/features/navigation/DefaultNavigator.kt
+++ b/vector/src/main/java/im/vector/riotx/features/navigation/DefaultNavigator.kt
@@ -19,7 +19,6 @@ package im.vector.riotx.features.navigation
 import android.app.Activity
 import android.content.Context
 import android.content.Intent
-import android.os.Build
 import android.view.View
 import android.view.Window
 import androidx.core.app.ActivityOptionsCompat
@@ -52,7 +51,6 @@ import im.vector.riotx.features.invite.InviteUsersToRoomActivity
 import im.vector.riotx.features.media.AttachmentData
 import im.vector.riotx.features.media.BigImageViewerActivity
 import im.vector.riotx.features.media.VectorAttachmentViewerActivity
-import im.vector.riotx.features.media.VideoContentRenderer
 import im.vector.riotx.features.roomdirectory.RoomDirectoryActivity
 import im.vector.riotx.features.roomdirectory.createroom.CreateRoomActivity
 import im.vector.riotx.features.roomdirectory.roompreview.RoomPreviewActivity
@@ -245,11 +243,11 @@ class DefaultNavigator @Inject constructor(
         context.startActivity(WidgetActivity.newIntent(context, widgetArgs))
     }
 
-    override fun openImageViewer(activity: Activity,
+    override fun openMediaViewer(activity: Activity,
                                  roomId: String,
                                  mediaData: AttachmentData,
                                  view: View,
-                                 inMemory: List<AttachmentData>?,
+                                 inMemory: List<AttachmentData>,
                                  options: ((MutableList<Pair<View, String>>) -> Unit)?) {
         VectorAttachmentViewerActivity.newIntent(activity,
                 mediaData,
@@ -268,52 +266,6 @@ class DefaultNavigator @Inject constructor(
             pairs.add(Pair(view, ViewCompat.getTransitionName(view) ?: ""))
             options?.invoke(pairs)
 
-            val bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, *pairs.toTypedArray()).toBundle()
-            activity.startActivity(intent, bundle)
-        }
-//        val intent = ImageMediaViewerActivity.newIntent(activity, mediaData, ViewCompat.getTransitionName(view))
-//        val pairs = ArrayList<Pair<View, String>>()
-//        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-//            activity.window.decorView.findViewById<View>(android.R.id.statusBarBackground)?.let {
-//                pairs.add(Pair(it, Window.STATUS_BAR_BACKGROUND_TRANSITION_NAME))
-//            }
-//            activity.window.decorView.findViewById<View>(android.R.id.navigationBarBackground)?.let {
-//                pairs.add(Pair(it, Window.NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME))
-//            }
-//        }
-//        pairs.add(Pair(view, ViewCompat.getTransitionName(view) ?: ""))
-//        options?.invoke(pairs)
-//
-//        val bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, *pairs.toTypedArray()).toBundle()
-//        activity.startActivity(intent, bundle)
-    }
-
-    override fun openVideoViewer(activity: Activity,
-                                 roomId: String,
-                                 mediaData: AttachmentData,
-                                 view: View,
-                                 inMemory: List<AttachmentData>?,
-                                 options: ((MutableList<Pair<View, String>>) -> Unit)?) {
-//        val intent = VideoMediaViewerActivity.newIntent(activity, mediaData)
-//        activity.startActivity(intent)
-        VectorAttachmentViewerActivity.newIntent(activity,
-                mediaData,
-                roomId,
-                mediaData.eventId,
-                inMemory,
-                ViewCompat.getTransitionName(view)).let { intent ->
-            val pairs = ArrayList<Pair<View, String>>()
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-                activity.window.decorView.findViewById<View>(android.R.id.statusBarBackground)?.let {
-                    pairs.add(Pair(it, Window.STATUS_BAR_BACKGROUND_TRANSITION_NAME))
-                }
-                activity.window.decorView.findViewById<View>(android.R.id.navigationBarBackground)?.let {
-                    pairs.add(Pair(it, Window.NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME))
-                }
-            }
-            pairs.add(Pair(view, ViewCompat.getTransitionName(view) ?: ""))
-            options?.invoke(pairs)
-
             val bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, *pairs.toTypedArray()).toBundle()
             activity.startActivity(intent, bundle)
         }
diff --git a/vector/src/main/java/im/vector/riotx/features/navigation/Navigator.kt b/vector/src/main/java/im/vector/riotx/features/navigation/Navigator.kt
index 6d036f1468..273734916d 100644
--- a/vector/src/main/java/im/vector/riotx/features/navigation/Navigator.kt
+++ b/vector/src/main/java/im/vector/riotx/features/navigation/Navigator.kt
@@ -91,17 +91,10 @@ interface Navigator {
 
     fun openRoomWidget(context: Context, roomId: String, widget: Widget)
 
-    fun openImageViewer(activity: Activity,
+    fun openMediaViewer(activity: Activity,
                         roomId: String,
                         mediaData: AttachmentData,
                         view: View,
-                        inMemory: List<AttachmentData>? = null,
-                        options: ((MutableList<Pair<View, String>>) -> Unit)?)
-
-    fun openVideoViewer(activity: Activity,
-                        roomId: String,
-                        mediaData: VideoContentRenderer.Data,
-                        view: View,
-                        inMemory: List<AttachmentData>? = null,
+                        inMemory: List<AttachmentData> = emptyList(),
                         options: ((MutableList<Pair<View, String>>) -> Unit)?)
 }
diff --git a/vector/src/main/java/im/vector/riotx/features/roomprofile/uploads/media/RoomUploadsMediaFragment.kt b/vector/src/main/java/im/vector/riotx/features/roomprofile/uploads/media/RoomUploadsMediaFragment.kt
index e0758c7d72..dda070bf48 100644
--- a/vector/src/main/java/im/vector/riotx/features/roomprofile/uploads/media/RoomUploadsMediaFragment.kt
+++ b/vector/src/main/java/im/vector/riotx/features/roomprofile/uploads/media/RoomUploadsMediaFragment.kt
@@ -89,7 +89,7 @@ class RoomUploadsMediaFragment @Inject constructor(
 
     // It's very strange i can't just access
     // the app bar using find by id...
-    private fun trickFindAppBar() : AppBarLayout? {
+    private fun trickFindAppBar(): AppBarLayout? {
         return activity?.supportFragmentManager?.fragments
                 ?.filterIsInstance<RoomUploadsFragment>()
                 ?.firstOrNull()
@@ -97,9 +97,14 @@ class RoomUploadsMediaFragment @Inject constructor(
     }
 
     override fun onOpenImageClicked(view: View, mediaData: ImageContentRenderer.Data) = withState(uploadsViewModel) { state ->
-
         val inMemory = getItemsArgs(state)
-        navigator.openImageViewer(requireActivity(), state.roomId, mediaData, view, inMemory) { pairs ->
+        navigator.openMediaViewer(
+                activity = requireActivity(),
+                roomId = state.roomId,
+                mediaData = mediaData,
+                view = view,
+                inMemory = inMemory
+        ) { pairs ->
             trickFindAppBar()?.let {
                 pairs.add(Pair(it, ViewCompat.getTransitionName(it) ?: ""))
             }
@@ -151,7 +156,13 @@ class RoomUploadsMediaFragment @Inject constructor(
 
     override fun onOpenVideoClicked(view: View, mediaData: VideoContentRenderer.Data) = withState(uploadsViewModel) { state ->
         val inMemory = getItemsArgs(state)
-        navigator.openVideoViewer(requireActivity(), state.roomId, mediaData, view, inMemory) { pairs ->
+        navigator.openMediaViewer(
+                activity = requireActivity(),
+                roomId = state.roomId,
+                mediaData = mediaData,
+                view = view,
+                inMemory = inMemory
+        ) { pairs ->
             trickFindAppBar()?.let {
                 pairs.add(Pair(it, ViewCompat.getTransitionName(it) ?: ""))
             }