Disable hiding reply/compose FAB if accessibility is enabled

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

@@ -90,7 +90,6 @@ import android.view.ViewGroup;
 import android.view.ViewStub;
 import android.view.WindowManager;
 import android.view.accessibility.AccessibilityEvent;
-import android.view.accessibility.AccessibilityManager;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.animation.AccelerateDecelerateInterpolator;
 import android.view.textclassifier.ConversationAction;
@@ -5664,8 +5663,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
         this.dp12 = Helper.dp2pixels(context, 12);
         this.dp60 = Helper.dp2pixels(context, 60);
 
-        AccessibilityManager am = (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
-        this.accessibility = (am != null && am.isEnabled());
+        this.accessibility = Helper.isAccessibilityEnabled(context);
 
         this.TF = Helper.getTimeInstance(context, SimpleDateFormat.SHORT);
         this.DTF = Helper.getDateTimeInstance(context, SimpleDateFormat.LONG, SimpleDateFormat.LONG);

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

@@ -319,6 +319,8 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
     private int colorSeparator;
     private int colorWarning;
 
+    private boolean accessibility;
+
     private long primary;
     private boolean connected;
     private boolean reset = false;
@@ -439,6 +441,8 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
         colorSeparator = Helper.resolveColor(getContext(), R.attr.colorSeparator);
         colorWarning = Helper.resolveColor(getContext(), R.attr.colorWarning);
 
+        accessibility = Helper.isAccessibilityEnabled(getContext());
+
         if (criteria == null)
             if (thread == null) {
                 if (folder < 0)
@@ -761,7 +765,9 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
                     boolean down = (dy > 0);
                     if (scrolling != down) {
                         scrolling = down;
-                        if (viewType == AdapterMessage.ViewType.UNIFIED || viewType == AdapterMessage.ViewType.FOLDER)
+                        if (!accessibility &&
+                                (viewType == AdapterMessage.ViewType.UNIFIED ||
+                                        viewType == AdapterMessage.ViewType.FOLDER))
                             if (dy > 0)
                                 fabCompose.hide();
                             else
@@ -5425,7 +5431,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
 
     private void updateExpanded() {
         int expanded = (values.containsKey("expanded") ? values.get("expanded").size() : 0);
-        if (scrolling)
+        if (scrolling && !accessibility)
             fabReply.hide();
         else {
             if (expanded == 1) {

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

@@ -19,6 +19,9 @@ package eu.faircode.email;
     Copyright 2018-2021 by Marcel Bokhorst (M66B)
 */
 
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+import static androidx.browser.customtabs.CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION;
+
 import android.Manifest;
 import android.app.Activity;
 import android.app.ActivityManager;
@@ -62,6 +65,7 @@ import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
+import android.view.accessibility.AccessibilityManager;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputMethodManager;
 import android.webkit.MimeTypeMap;
@@ -137,9 +141,6 @@ import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicLong;
 import java.util.regex.Pattern;
 
-import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
-import static androidx.browser.customtabs.CustomTabsService.ACTION_CUSTOM_TABS_CONNECTION;
-
 public class Helper {
     private static Boolean hasPlayStore = null;
     private static Boolean hasValidFingerprint = null;
@@ -549,6 +550,17 @@ public class Helper {
             }
     }
 
+    static boolean isAccessibilityEnabled(Context context) {
+        try {
+            AccessibilityManager am =
+                    (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
+            return (am != null && am.isEnabled());
+        } catch (Throwable ex) {
+            Log.e(ex);
+            return false;
+        }
+    }
+
     // View
 
     static Intent getChooser(Context context, Intent intent) {