a11y: Improvements to message list presentation

Improved screen reader accessibility of message list in regard to up to date features since this has been looked into last time.

It includes these changes:
* Explicitly set contentDescription of image buttons and image views to @null rather than setting it into textual values where these are not used.
* Some 3rd party screen reader apps don't disable their contentDescription calculation from child widgets while the parent has a custom actions and overridden contentDescriptions so use setImportantForAccessibility on all the widgets contentDescription is populated from. This avoids speaking some texts multiple times on non default accessibility service setups.
* Added missing details to the contentDescription such as signed, notes, labels, keywords.
* Change it so visibility of the individual widgets is respected where possible.

Signed-off-by: Peter Vágner <pvdeejay@gmail.com>

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

@@ -5074,14 +5074,22 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             ToastEx.makeText(context, ssb, Toast.LENGTH_LONG).show();
         }
 
-        private void onShowPriority(TupleMessageEx message) {
+        private int getPriority(TupleMessageEx message) {
+            int resid = -1;
             if (EntityMessage.PRIORITIY_HIGH.equals(message.ui_priority))
-                ToastEx.makeText(context, R.string.title_legend_priority, Toast.LENGTH_LONG).show();
+                resid = R.string.title_legend_priority;
             else
-                ToastEx.makeText(context, R.string.title_legend_priority_low, Toast.LENGTH_LONG).show();
+                resid = R.string.title_legend_priority_low;
+            return resid;
         }
 
-        private void onShowSensitivity(TupleMessageEx message) {
+        private void onShowPriority(TupleMessageEx message) {
+            int resid = getPriority(message);
+            if (resid > 0)
+                ToastEx.makeText(context, resid, Toast.LENGTH_LONG).show();
+        }
+
+        private int getSensitivity(TupleMessageEx message) {
             int resid = -1;
             if (EntityMessage.SENSITIVITY_PERSONAL.equals(message.sensitivity))
                 resid = R.string.title_legend_sensitivity_personal;
@@ -5089,26 +5097,41 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                 resid = R.string.title_legend_sensitivity_private;
             else if (EntityMessage.SENSITIVITY_CONFIDENTIAL.equals(message.sensitivity))
                 resid = R.string.title_legend_sensitivity_confidential;
+            return resid;
+        }
+
+        private void onShowSensitivity(TupleMessageEx message) {
+            int resid = getSensitivity(message);
             if (resid > 0)
                 ToastEx.makeText(context, resid, Toast.LENGTH_LONG).show();
         }
 
-        private void onShowSigned(TupleMessageEx message) {
+        private int getSigned(TupleMessageEx message) {
             int resid = -1;
             if (EntityMessage.PGP_SIGNONLY.equals(message.ui_encrypt))
                 resid = R.string.title_advanced_caption_pgp;
             else if (EntityMessage.SMIME_SIGNONLY.equals(message.ui_encrypt))
                 resid = R.string.title_advanced_caption_smime;
+            return resid;
+        }
+
+        private void onShowSigned(TupleMessageEx message) {
+            int resid = getSigned(message);
             if (resid > 0)
                 ToastEx.makeText(context, resid, Toast.LENGTH_LONG).show();
         }
 
-        private void onShowEncrypted(TupleMessageEx message) {
+        private int getEncrypted(TupleMessageEx message) {
             int resid = -1;
             if (EntityMessage.PGP_SIGNENCRYPT.equals(message.ui_encrypt))
                 resid = R.string.title_advanced_caption_pgp;
             else if (EntityMessage.SMIME_SIGNENCRYPT.equals(message.ui_encrypt))
                 resid = R.string.title_advanced_caption_smime;
+            return resid;
+        }
+
+        private void onShowEncrypted(TupleMessageEx message) {
+            int resid = getEncrypted(message);
             if (resid > 0)
                 ToastEx.makeText(context, resid, Toast.LENGTH_LONG).show();
         }
@@ -8107,19 +8130,30 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                 result.add(context.getString(
                         message.unseen > 0 ? R.string.title_accessibility_unseen : R.string.title_accessibility_seen));
 
-                if (tvCount.getVisibility() == View.VISIBLE)
+                if (tvCount.getVisibility() == View.VISIBLE) {
                     result.add(context.getResources().getQuantityString(
                             R.plurals.title_accessibility_messages, message.visible, message.visible));
+                            tvCount.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (ibExpander.getVisibility() == View.VISIBLE)
+                if (ibExpander.getVisibility() == View.VISIBLE) {
                     result.add(context.getString(
                             expanded ? R.string.title_accessibility_expanded : R.string.title_accessibility_collapsed));
+                    ibExpander.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
                 if (message.drafts > 0)
                     result.add(context.getString(R.string.title_legend_draft));
 
-                if (message.ui_answered)
+                if (ivAnswered.getVisibility() == View.VISIBLE) {
                     result.add(context.getString(R.string.title_accessibility_answered));
+                    ivAnswered.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
+
+                if (ivForwarded.getVisibility() == View.VISIBLE) {
+                    result.add(context.getString(R.string.title_accessibility_forwarded));
+                    ivForwarded.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
                 if (ibFlagged.getVisibility() == View.VISIBLE && ibFlagged.isEnabled()) {
                     int flagged = (message.count - message.unflagged);
@@ -8127,13 +8161,25 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                         result.add(context.getString(R.string.title_accessibility_flagged));
                 }
 
-                if (EntityMessage.PRIORITIY_HIGH.equals(message.ui_priority))
+                if (ibPriority.getVisibility() == View.VISIBLE) {
-                    result.add(context.getString(R.string.title_legend_priority));
+                    result.add(context.getString(getPriority(message)));
-                else if (EntityMessage.PRIORITIY_LOW.equals(message.ui_priority))
+                    ibPriority.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
-                    result.add(context.getString(R.string.title_legend_priority_low));
+                }
+
+                if (ibSensitivity.getVisibility() == View.VISIBLE) {
+                    result.add(context.getString(getSensitivity(message)));
+                    ibSensitivity.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (message.attachments > 0)
+                if (ivAttachments.getVisibility() == View.VISIBLE) {
                     result.add(context.getString(R.string.title_accessibility_attachment));
+                    ivAttachments.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
+
+                if (tvNotes.getVisibility() == View.VISIBLE) {
+                    result.add(tvNotes.getText().toString());
+                    tvNotes.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
                 boolean outgoing = isOutgoing(message);
                 Address[] addresses = (EntityFolder.isOutgoing(message.folderType) &&
@@ -8151,20 +8197,34 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     result.add(tvTime.getText().toString());
                     result.add(message.subject);
                 }
+                tvFrom.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                tvSubject.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                tvTime.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+
+                if (ibSigned.getVisibility() == View.VISIBLE) {
+                    result.add(context.getString(R.string.title_legend_signed) + " " + context.getString(getSigned(message)));
+                    ibSigned.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (message.isSigned())
+                if (ibEncrypted.getVisibility() == View.VISIBLE) {
-                    result.add(context.getString(R.string.title_legend_encrypted));
+                    result.add(context.getString(R.string.title_legend_encrypted) + " " + context.getString(getEncrypted(message)));
-                else if (message.isEncrypted())
+                    ibEncrypted.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
-                    result.add(context.getString(R.string.title_legend_signed));
+                }
 
-                if (ibAuth.getVisibility() == View.VISIBLE)
+                if (ibAuth.getVisibility() == View.VISIBLE) {
                     result.add(context.getString(R.string.title_legend_auth));
+                    ibAuth.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (ivFound.getVisibility() == View.VISIBLE)
+                if (ivFound.getVisibility() == View.VISIBLE) {
                     result.add(context.getString(R.string.title_legend_found));
+                    ivFound.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (ibSnoozed.getVisibility() == View.VISIBLE)
+                if (ibSnoozed.getVisibility() == View.VISIBLE) {
                     result.add(context.getString(R.string.title_legend_snoozed));
+                    ibSnoozed.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
                 if (expanded) {
                     if (message.receipt_request != null && message.receipt_request)
@@ -8175,17 +8235,40 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                         result.add(context.getString(R.string.title_legend_browsed));
                 }
 
-                if (tvFolder.getVisibility() == View.VISIBLE)
+                if (tvFolder.getVisibility() == View.VISIBLE) {
                     result.add(tvFolder.getText().toString());
+                    tvFolder.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
+
+                if (tvLabels.getVisibility() == View.VISIBLE) {
+                    result.add(tvLabels.getText().toString());
+                    tvLabels.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (tvSize.getVisibility() == View.VISIBLE)
+                if (tvSize.getVisibility() == View.VISIBLE) {
                     result.add(tvSize.getText().toString());
+                    tvSize.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (tvError.getVisibility() == View.VISIBLE)
+                if (tvError.getVisibility() == View.VISIBLE) {
                     result.add(tvError.getText().toString());
+                    tvError.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
-                if (tvPreview.getVisibility() == View.VISIBLE)
+                if (tvExpand.getVisibility() == View.VISIBLE) {
+                    result.add(tvExpand.getText().toString());
+                    tvExpand.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
+
+                if (tvPreview.getVisibility() == View.VISIBLE) {
                     result.add(tvPreview.getText().toString());
+                    tvPreview.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
+
+                if (tvKeywords.getVisibility() == View.VISIBLE) {
+                    result.add(tvKeywords.getText().toString());
+                    tvKeywords.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+                }
 
                 return TextUtils.join(", ", result);
             }

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

@@ -8,6 +8,7 @@
         android:id="@+id/ivBadge"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:contentDescription="@null"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
         app:srcCompat="@drawable/badge" />
@@ -17,6 +18,7 @@
         android:layout_width="6dp"
         android:layout_height="0dp"
         android:background="?attr/colorAccent"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/paddingBottom"
         app:layout_constraintStart_toEndOf="@+id/ivBadge"
         app:layout_constraintTop_toTopOf="parent" />
@@ -37,6 +39,7 @@
         android:layout_gravity="center_vertical|center_horizontal"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         android:visibility="visible"
         app:layout_constraintBottom_toBottomOf="@+id/paddingBottom"
         app:layout_constraintStart_toEndOf="@id/vwColor"
@@ -57,7 +60,7 @@
         android:layout_height="0dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_avatar"
+        android:contentDescription="@null"
         android:scaleType="centerCrop"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintDimensionRatio="1:1"
@@ -71,6 +74,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibAvatar"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -83,7 +87,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_auth"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibVerified"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -96,6 +100,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibAuth"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -108,6 +113,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibPriority"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -119,6 +125,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibSensitivity"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -131,7 +138,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_signed"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ivImportance"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -143,7 +150,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_encrypted"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibSigned"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -197,6 +204,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvSubject"
         app:layout_constraintStart_toEndOf="@id/ibAvatar"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -207,7 +215,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_found"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvSubject"
         app:layout_constraintStart_toEndOf="@id/ivType"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -219,7 +227,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_snoozed"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvSubject"
         app:layout_constraintStart_toEndOf="@id/ivFound"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -230,7 +238,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_classified"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvSubject"
         app:layout_constraintStart_toEndOf="@id/ibSnoozed"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -241,7 +249,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_answered"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvSubject"
         app:layout_constraintStart_toEndOf="@id/ivClassified"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -252,7 +260,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_answered"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvSubject"
         app:layout_constraintStart_toEndOf="@id/ivAnswered"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -263,6 +271,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvSubject"
         app:layout_constraintStart_toEndOf="@id/ivForwarded"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -303,6 +312,7 @@
         android:layout_width="15dp"
         android:layout_height="15dp"
         android:layout_marginEnd="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@id/tvSubject"
         app:layout_constraintEnd_toStartOf="@+id/ibFlagged"
         app:layout_constraintTop_toTopOf="@+id/tvSubject"
@@ -314,6 +324,7 @@
         android:layout_height="36dp"
         android:layout_marginEnd="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         android:paddingTop="6dp"
         android:paddingBottom="6dp"
         android:visibility="visible"
@@ -427,6 +438,7 @@
         android:layout_height="27dp"
         android:layout_marginEnd="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         android:scaleType="fitCenter"
         app:layout_constraintBottom_toBottomOf="@+id/tvError"
         app:layout_constraintEnd_toStartOf="@+id/paddingEnd"

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

@@ -7,6 +7,7 @@
         android:id="@+id/ivBadge"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:contentDescription="@null"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
         app:srcCompat="@drawable/badge" />
@@ -16,6 +17,7 @@
         android:layout_width="6dp"
         android:layout_height="0dp"
         android:background="?attr/colorAccent"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/paddingBottom"
         app:layout_constraintStart_toEndOf="@+id/ivBadge"
         app:layout_constraintTop_toTopOf="parent" />
@@ -36,6 +38,7 @@
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
         android:visibility="visible"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/paddingBottom"
         app:layout_constraintStart_toEndOf="@id/vwColor"
         app:layout_constraintTop_toTopOf="@id/paddingTop"
@@ -54,7 +57,7 @@
         android:layout_width="0dp"
         android:layout_height="0dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_avatar"
+        android:contentDescription="@null"
         android:paddingStart="6dp"
         android:paddingEnd="6dp"
         android:scaleType="centerCrop"
@@ -70,6 +73,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibAvatar"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -82,7 +86,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_auth"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibVerified"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -95,6 +99,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibAuth"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -107,6 +112,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibPriority"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -118,6 +124,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibSensitivity"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -130,7 +137,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_signed"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ivImportance"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -142,7 +149,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_encrypted"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFrom"
         app:layout_constraintStart_toEndOf="@id/ibSigned"
         app:layout_constraintTop_toTopOf="@+id/tvFrom"
@@ -226,6 +233,7 @@
         android:layout_height="42dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
         android:padding="6dp"
+        android:contentDescription="@null"
         android:visibility="visible"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintEnd_toStartOf="@id/paddingEnd"
@@ -237,6 +245,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintStart_toEndOf="@id/ibAvatar"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -247,7 +256,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_found"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintStart_toEndOf="@id/ivType"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -259,7 +268,7 @@
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
-        android:contentDescription="@string/title_legend_snoozed"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintStart_toEndOf="@id/ivFound"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -270,7 +279,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_classified"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintStart_toEndOf="@id/ibSnoozed"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -281,7 +290,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_answered"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintStart_toEndOf="@id/ivClassified"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -292,7 +301,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
-        android:contentDescription="@string/title_legend_answered"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintStart_toEndOf="@id/ivAnswered"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -303,6 +312,7 @@
         android:layout_width="21dp"
         android:layout_height="21dp"
         android:layout_marginStart="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintStart_toEndOf="@id/ivForwarded"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -343,6 +353,7 @@
         android:layout_width="15dp"
         android:layout_height="15dp"
         android:layout_marginEnd="6dp"
+        android:contentDescription="@null"
         app:layout_constraintBottom_toBottomOf="@+id/tvFolder"
         app:layout_constraintEnd_toStartOf="@+id/ibFlagged"
         app:layout_constraintTop_toTopOf="@+id/tvFolder"
@@ -427,6 +438,7 @@
         android:layout_height="27dp"
         android:layout_marginEnd="6dp"
         android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:contentDescription="@null"
         android:scaleType="fitCenter"
         app:layout_constraintBottom_toBottomOf="@+id/tvError"
         app:layout_constraintEnd_toStartOf="@+id/paddingEnd"

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

@@ -2541,6 +2541,7 @@
     <string name="title_accessibility_view_help">View help</string>
     <string name="title_accessibility_selected">Selected</string>
     <string name="title_accessibility_answered">Replied</string>
+    <string name="title_accessibility_forwarded">Forwarded</string>
     <string name="title_accessibility_scroll_down">Scroll down</string>
     <string name="title_accessibility_scroll_up">Scroll up</string>
     <string name="title_accessibility_filter_out_seen">Toggle read messages filter</string>