Fix issue #629 - Remove animations after refresh

app/src/main/java/app/fedilab/android/ui/fragment/timeline/FragmentMastodonConversation.java

@@ -28,6 +28,7 @@ import androidx.lifecycle.ViewModelProvider;
 import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.SimpleItemAnimator;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -262,6 +263,11 @@ public class FragmentMastodonConversation extends Fragment implements Conversati
         if (binding == null || !isAdded() || getActivity() == null) {
             return;
         }
+
+        RecyclerView.ItemAnimator animator = binding.recyclerView.getItemAnimator();
+        if (animator instanceof SimpleItemAnimator) {
+            ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
+        }
         binding.loader.setVisibility(View.GONE);
         binding.noAction.setVisibility(View.GONE);
         binding.swipeContainer.setRefreshing(false);

app/src/main/java/app/fedilab/android/ui/fragment/timeline/FragmentMastodonNotification.java

@@ -32,6 +32,7 @@ import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.SimpleItemAnimator;
 
 import com.google.gson.annotations.SerializedName;
 
@@ -253,6 +254,10 @@ public class FragmentMastodonNotification extends Fragment implements Notificati
         if (binding == null || !isAdded() || getActivity() == null) {
             return;
         }
+        RecyclerView.ItemAnimator animator = binding.recyclerView.getItemAnimator();
+        if (animator instanceof SimpleItemAnimator) {
+            ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
+        }
         binding.loader.setVisibility(View.GONE);
         binding.noAction.setVisibility(View.GONE);
         binding.swipeContainer.setRefreshing(false);

app/src/main/java/app/fedilab/android/ui/fragment/timeline/FragmentMastodonTimeline.java

@@ -39,6 +39,7 @@ import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.SimpleItemAnimator;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -538,6 +539,10 @@ public class FragmentMastodonTimeline extends Fragment implements StatusAdapter.
         if (statusReport != null) {
             scrollToTop();
         }
+        RecyclerView.ItemAnimator animator = binding.recyclerView.getItemAnimator();
+        if (animator instanceof SimpleItemAnimator) {
+            ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
+        }
         mLayoutManager = new LinearLayoutManager(requireActivity());
         mLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
         binding.recyclerView.setLayoutManager(mLayoutManager);