Added option to disable auto hiding of answer button

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

@@ -361,6 +361,7 @@ public class FragmentMessages extends FragmentBase
     private String onclose;
     private boolean quick_scroll;
     private boolean addresses;
+    private boolean auto_hide_answer;
     private boolean swipe_reply;
     private boolean quick_actions;
 
@@ -510,6 +511,7 @@ public class FragmentMessages extends FragmentBase
         onclose = (autoclose ? null : prefs.getString("onclose", null));
         quick_scroll = prefs.getBoolean("quick_scroll", true);
         addresses = prefs.getBoolean("addresses", false);
+        auto_hide_answer = prefs.getBoolean("auto_hide_answer", true);
         swipe_reply = prefs.getBoolean("swipe_reply", false);
         quick_actions = prefs.getBoolean("quick_actions", true);
 
@@ -7033,7 +7035,7 @@ public class FragmentMessages extends FragmentBase
             return;
 
         int expanded = (values.containsKey("expanded") ? values.get("expanded").size() : 0);
-        if (scrolling && !accessibility)
+        if (auto_hide_answer && scrolling && !accessibility)
             fabReply.hide();
         else {
             if (expanded == 1) {

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

@@ -151,7 +151,7 @@ public class FragmentOptions extends FragmentBase {
             "collapse_quotes", "image_placeholders", "inline_images",
             "seekbar", "actionbar", "actionbar_swap", "actionbar_color", "group_category",
             "autoscroll", "swipenav", "reversed", "swipe_close", "swipe_move", "autoexpand", "autoclose", "onclose",
-            "thread_sent_trash", "swipe_reply",
+            "thread_sent_trash", "auto_hide_answer", "swipe_reply",
             "language_detection",
             "quick_filter", "quick_scroll", "quick_actions",
             "experiments", "debug", "log_level", "test1", "test2", "test3", "test4", "test5",

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

@@ -107,6 +107,7 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
     private SwitchCompat swAutoImportant;
     private SwitchCompat swResetSnooze;
     private SwitchCompat swAutoBlockSender;
+    private SwitchCompat swAutoHideAnswer;
     private SwitchCompat swSwipeReply;
     private Button btnDefaultFolder;
     private TextView tvDefaultFolder;
@@ -125,7 +126,7 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
             "autoclose", "onclose", "autoclose_unseen", "autoclose_send", "collapse_marked",
             "undo_timeout",
             "autoread", "flag_snoozed", "autounflag", "auto_important", "reset_importance", "thread_sent_trash",
-            "reset_snooze", "auto_block_sender", "swipe_reply", "default_folder"
+            "reset_snooze", "auto_block_sender", "auto_hide_answer", "swipe_reply", "default_folder"
     };
 
     @Override
@@ -183,6 +184,7 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
         swAutoImportant = view.findViewById(R.id.swAutoImportant);
         swResetSnooze = view.findViewById(R.id.swResetSnooze);
         swAutoBlockSender = view.findViewById(R.id.swAutoBlockSender);
+        swAutoHideAnswer = view.findViewById(R.id.swAutoHideAnswer);
         swSwipeReply = view.findViewById(R.id.swSwipeReply);
         btnDefaultFolder = view.findViewById(R.id.btnDefaultFolder);
         tvDefaultFolder = view.findViewById(R.id.tvDefaultFolder);
@@ -551,6 +553,13 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
             }
         });
 
+        swAutoHideAnswer.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("auto_hide_answer", checked).apply();
+            }
+        });
+
         swSwipeReply.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -705,6 +714,7 @@ public class FragmentOptionsBehavior extends FragmentBase implements SharedPrefe
         swAutoImportant.setChecked(prefs.getBoolean("auto_important", false));
         swResetSnooze.setChecked(prefs.getBoolean("reset_snooze", true));
         swAutoBlockSender.setChecked(prefs.getBoolean("auto_block_sender", true));
+        swAutoHideAnswer.setChecked(prefs.getBoolean("auto_hide_answer", true));
         swSwipeReply.setChecked(prefs.getBoolean("swipe_reply", false));
         tvDefaultFolder.setText(prefs.getString("default_folder", null));
     }

app/src/main/res/layout/fragment_options_behavior.xml

@@ -795,6 +795,18 @@
                     app:layout_constraintTop_toBottomOf="@id/swResetSnooze"
                     app:switchPadding="12dp" />
 
+                <androidx.appcompat.widget.SwitchCompat
+                    android:id="@+id/swAutoHideAnswer"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="12dp"
+                    android:checked="true"
+                    android:text="@string/title_advanced_auto_hide_answer"
+                    app:layout_constraintEnd_toEndOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toBottomOf="@id/swAutoBlockSender"
+                    app:switchPadding="12dp" />
+
                 <androidx.appcompat.widget.SwitchCompat
                     android:id="@+id/swSwipeReply"
                     android:layout_width="0dp"
@@ -803,7 +815,7 @@
                     android:text="@string/title_advanced_swipe_reply"
                     app:layout_constraintEnd_toEndOf="parent"
                     app:layout_constraintStart_toStartOf="parent"
-                    app:layout_constraintTop_toBottomOf="@id/swAutoBlockSender"
+                    app:layout_constraintTop_toBottomOf="@id/swAutoHideAnswer"
                     app:switchPadding="12dp" />
 
                 <Button

app/src/main/res/values/strings.xml

@@ -661,6 +661,7 @@
     <string name="title_advanced_auto_important">Automatically make starred messages important</string>
     <string name="title_advanced_cancel_snooze">Cancel snooze on moving messages</string>
     <string name="title_advanced_auto_block_sender">Automatically block the sender when reporting spam</string>
+    <string name="title_advanced_auto_hide_answer">Automatically hide the answer button when scrolling</string>
     <string name="title_advanced_swipe_reply">Swipe expanded messages to the right to reply</string>
     <string name="title_advanced_default_snooze">Default snooze/delay time</string>
     <string name="title_advanced_default_folder">Select default folder</string>