screen orientation for photo viewer

app/src/main/java/com/biganto/visual/roompark/conductor/dialogs/change_handler/PhotoDialogController.kt

 package com.biganto.visual.roompark.conductor.dialogs.change_handler
 
+import android.content.pm.ActivityInfo
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -32,6 +33,8 @@ class PhotoDialogController : Controller {
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup): View {
         val view = inflater.inflate(getLayoutId(), container, false)
 
+        activity?.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_USER_LANDSCAPE
+
         args.getString(PHOTO_URL_KEY)?.let {
             val photoView = view.findViewById<PhotoView>(R.id.photo_frame)
             Glide.with(photoView)
@@ -50,6 +53,7 @@ class PhotoDialogController : Controller {
     fun getLayoutId() = R.layout.photo_viewer
 
     override fun handleBack(): Boolean {
+        activity?.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_USER_PORTRAIT
         return router.popCurrentController()
     }