Fixed album position in track info and ensure safe callback to current recycler view.

app/src/main/java/com/github/apognu/otter/fragments/OtterFragment.kt

@@ -178,9 +178,13 @@ abstract class OtterFragment<D : Any, A : OtterAdapter<D, *>> : Fragment() {
   }
 
   private fun needsMoreOffscreenPages(): Boolean {
-    val offset = recycler.computeVerticalScrollOffset()
-    val left = recycler.computeVerticalScrollRange() - recycler.height - offset
+    view?.let {
+      val offset = recycler.computeVerticalScrollOffset()
+      val left = recycler.computeVerticalScrollRange() - recycler.height - offset
 
-    return left < (recycler.height * OFFSCREEN_PAGES)
+      return left < (recycler.height * OFFSCREEN_PAGES)
+    }
+
+    return false
   }
 }

app/src/main/java/com/github/apognu/otter/fragments/TrackInfoDetailsFragment.kt

@@ -53,7 +53,7 @@ class TrackInfoDetailsFragment : DialogFragment() {
       properties.add(Pair(R.string.track_info_details_track_copyright, getString("trackCopyright")))
       properties.add(Pair(R.string.track_info_details_track_license, getString("trackLicense")))
       properties.add(Pair(R.string.track_info_details_track_duration, getString("trackDuration")))
-      properties.add(Pair(R.string.track_info_details_track_position, getString("trackPosition")))
+      properties.add(Pair(R.string.track_info_details_track_position, getInt("trackPosition").toString()))
       properties.add(Pair(R.string.track_info_details_track_bitrate, getString("trackBitrate")))
       properties.add(Pair(R.string.track_info_details_track_instance, getString("trackInstance")))
     }