Prevent crash

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

@@ -195,7 +195,7 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
             @Override
             public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
                 int pos = parent.getChildAdapterPosition(view);
-                NavMenuItem menu = adapter.get(pos);
+                NavMenuItem menu = (adapter == null ? null : adapter.get(pos));
                 outRect.set(0, 0, 0, menu != null && menu.isSeparated() ? d.getIntrinsicHeight() : 0);
             }
         };

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

@@ -553,7 +553,7 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
             @Override
             public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
                 int pos = parent.getChildAdapterPosition(view);
-                NavMenuItem menu = adapterNavMenuExtra.get(pos);
+                NavMenuItem menu = (adapterNavMenuExtra == null ? null : adapterNavMenuExtra.get(pos));
                 outRect.set(0, 0, 0, menu != null && menu.isSeparated() ? d.getIntrinsicHeight() : 0);
             }
         };

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

@@ -45,6 +45,7 @@ import androidx.appcompat.widget.PopupMenu;
 import androidx.constraintlayout.widget.Group;
 import androidx.core.view.MenuCompat;
 import androidx.fragment.app.FragmentTransaction;
+import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.Observer;
 import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.DividerItemDecoration;
@@ -177,6 +178,9 @@ public class FragmentAccounts extends FragmentBase {
                 if (pos == NO_POSITION)
                     return null;
 
+                if (!getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.STARTED))
+                    return null;
+
                 TupleAccountEx prev = adapter.getItemAtPosition(pos - 1);
                 TupleAccountEx account = adapter.getItemAtPosition(pos);
                 if (pos > 0 && prev == null)

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

@@ -58,6 +58,7 @@ import androidx.constraintlayout.widget.Group;
 import androidx.core.app.NotificationCompat;
 import androidx.core.view.MenuCompat;
 import androidx.fragment.app.FragmentTransaction;
+import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.Observer;
 import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.DividerItemDecoration;
@@ -249,6 +250,9 @@ public class FragmentFolders extends FragmentBase {
                     if (pos == NO_POSITION)
                         return null;
 
+                    if (!getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.STARTED))
+                        return null;
+
                     TupleFolderEx prev = adapter.getItemAtPosition(pos - 1);
                     TupleFolderEx account = adapter.getItemAtPosition(pos);
                     if (pos > 0 && prev == null)

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

@@ -36,6 +36,7 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.constraintlayout.widget.Group;
 import androidx.fragment.app.FragmentTransaction;
+import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.Observer;
 import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.DividerItemDecoration;
@@ -124,6 +125,9 @@ public class FragmentIdentities extends FragmentBase {
                 if (pos == NO_POSITION)
                     return null;
 
+                if (!getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.STARTED))
+                    return null;
+
                 TupleIdentityEx prev = adapter.getItemAtPosition(pos - 1);
                 TupleIdentityEx identity = adapter.getItemAtPosition(pos);
                 if (pos > 0 && prev == null)

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

@@ -697,8 +697,10 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
             @Override
             public void onDraw(@NonNull Canvas canvas, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
                 int count = parent.getChildCount();
+                String sort = (adapter == null ? null : adapter.getSort());
+
                 if (date_fixed)
-                    if ("time".equals(adapter.getSort()))
+                    if ("time".equals(sort))
                         inGroup.setVisibility(count > 0 ? View.VISIBLE : View.INVISIBLE);
                     else
                         inGroup.setVisibility(View.GONE);
@@ -707,7 +709,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
                     View view = parent.getChildAt(i);
                     int pos = parent.getChildAdapterPosition(view);
 
-                    if (i == 0 && date_fixed && "time".equals(adapter.getSort())) {
+                    if (i == 0 && date_fixed && "time".equals(sort)) {
                         TupleMessageEx top = adapter.getItemAtPosition(pos);
                         tvFixedDate.setVisibility(top == null ? View.INVISIBLE : View.VISIBLE);
                         if (!cards)