Fixed search spinner

app/src/main/java/eu/faircode/email/BoundaryCallbackMessages.java

@@ -65,7 +65,6 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
     private int index;
     private boolean searching = false;
     private int loaded = 0;
-    private boolean destroyed = false;
 
     interface IBoundaryCallbackMessages {
         void onLoading();
@@ -87,7 +86,6 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
             @Override
             public void onStateChanged(LifecycleOwner source, Lifecycle.Event event) {
                 if (event == Lifecycle.Event.ON_DESTROY) {
-                    destroyed = true;
                     executor.submit(new Runnable() {
                         @Override
                         public void run() {
@@ -140,7 +138,6 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
                     handler.post(new Runnable() {
                         @Override
                         public void run() {
-                            if (!destroyed)
                             intf.onLoading();
                         }
                     });
@@ -232,7 +229,6 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
                     handler.post(new Runnable() {
                         @Override
                         public void run() {
-                            if (!destroyed)
                             intf.onError(context, ex);
                         }
                     });
@@ -241,7 +237,6 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
                     handler.post(new Runnable() {
                         @Override
                         public void run() {
-                            if (!destroyed)
                             intf.onLoaded();
                         }
                     });

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -52,6 +52,7 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.widget.SearchView;
 import androidx.constraintlayout.widget.Group;
 import androidx.fragment.app.FragmentTransaction;
+import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.Observer;
 import androidx.paging.LivePagedListBuilder;
@@ -682,6 +683,7 @@ public class FragmentMessages extends FragmentEx {
 
                                     @Override
                                     public void onError(Context context, Throwable ex) {
+                                        if (getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED))
                                             new DialogBuilderLifecycle(getContext(), getViewLifecycleOwner())
                                                     .setMessage(Helper.formatThrowable(ex))
                                                     .setPositiveButton(android.R.string.cancel, null)
@@ -727,6 +729,7 @@ public class FragmentMessages extends FragmentEx {
 
                             @Override
                             public void onError(Context context, Throwable ex) {
+                                if (getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED))
                                     new DialogBuilderLifecycle(getContext(), getViewLifecycleOwner())
                                             .setMessage(Helper.formatThrowable(ex))
                                             .setPositiveButton(android.R.string.cancel, null)