Reintroduce labels for incoming call screen.

app/src/main/java/org/thoughtcrime/securesms/components/webrtc/WebRtcCallView.java

@@ -92,6 +92,7 @@ public class WebRtcCallView extends ConstraintLayout {
   private ControlsListener              controlsListener;
   private RecipientId                   recipientId;
   private ImageView                     answer;
+  private TextView                      answerWithoutVideoLabel;
   private ImageView                     cameraDirectionToggle;
   private AccessibleToggleButton        ringToggle;
   private PictureInPictureGestureHelper pictureInPictureGestureHelper;
@@ -173,6 +174,7 @@ public class WebRtcCallView extends ConstraintLayout {
     parent                        = findViewById(R.id.call_screen);
     participantsParent            = findViewById(R.id.call_screen_participants_parent);
     answer                        = findViewById(R.id.call_screen_answer_call);
+    answerWithoutVideoLabel       = findViewById(R.id.call_screen_answer_without_video_label);
     cameraDirectionToggle         = findViewById(R.id.call_screen_camera_direction_toggle);
     ringToggle                    = findViewById(R.id.call_screen_audio_ring_toggle);
     hangup                        = findViewById(R.id.call_screen_end_call);
@@ -198,6 +200,8 @@ public class WebRtcCallView extends ConstraintLayout {
     fullScreenShade               = findViewById(R.id.call_screen_full_shade);
 
     View      decline                = findViewById(R.id.call_screen_decline_call);
+    View      answerLabel            = findViewById(R.id.call_screen_answer_call_label);
+    View      declineLabel           = findViewById(R.id.call_screen_decline_call_label);
 
     callParticipantsPager.setPageTransformer(new MarginPageTransformer(ViewUtil.dpToPx(4)));
 
@@ -222,7 +226,9 @@ public class WebRtcCallView extends ConstraintLayout {
     topViews.add(topGradient);
 
     incomingCallViews.add(answer);
+    incomingCallViews.add(answerLabel);
     incomingCallViews.add(decline);
+    incomingCallViews.add(declineLabel);
     incomingCallViews.add(footerGradient);
     incomingCallViews.add(incomingRingStatus);
 
@@ -621,6 +627,7 @@ public class WebRtcCallView extends ConstraintLayout {
 
     if (webRtcControls.displayAnswerWithoutVideo()) {
       visibleViewSet.add(answerWithoutVideo);
+      visibleViewSet.add(answerWithoutVideoLabel);
 
       answer.setImageDrawable(AppCompatResources.getDrawable(getContext(), R.drawable.webrtc_call_screen_answer_with_video));
     }

app/src/main/res/drawable/webrtc_call_screen_answer_without_video.xml

@@ -3,7 +3,7 @@
     <item android:drawable="@drawable/webrtc_call_screen_circle_grey_selector" />
     <item
         android:bottom="14dp"
-        android:drawable="@drawable/ic_video_off_solid_white_28"
+        android:drawable="@drawable/symbol_video_slash_fill_24"
         android:left="14dp"
         android:right="14dp"
         android:top="14dp" />

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

@@ -325,6 +325,20 @@
             app:srcCompat="@drawable/webrtc_call_screen_hangup"
             tools:visibility="gone" />
 
+        <TextView
+            android:id="@+id/call_screen_decline_call_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="5dp"
+            android:hyphenationFrequency="normal"
+            android:text="@string/WebRtcCallScreen__decline"
+            android:textColor="@color/core_white"
+            android:visibility="gone"
+            app:layout_constraintEnd_toEndOf="@id/call_screen_decline_call"
+            app:layout_constraintStart_toStartOf="@id/call_screen_decline_call"
+            app:layout_constraintTop_toBottomOf="@id/call_screen_decline_call"
+            tools:visibility="gone" />
+
         <ImageView
             android:id="@+id/call_screen_answer_call"
             android:layout_width="56dp"
@@ -340,6 +354,20 @@
             app:srcCompat="@drawable/webrtc_call_screen_answer"
             tools:visibility="gone" />
 
+        <TextView
+            android:id="@+id/call_screen_answer_call_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="5dp"
+            android:hyphenationFrequency="normal"
+            android:text="@string/WebRtcCallScreen__answer"
+            android:textColor="@color/core_white"
+            android:visibility="gone"
+            app:layout_constraintEnd_toEndOf="@id/call_screen_answer_call"
+            app:layout_constraintStart_toStartOf="@id/call_screen_answer_call"
+            app:layout_constraintTop_toBottomOf="@id/call_screen_answer_call"
+            tools:visibility="gone" />
+
         <ImageView
             android:id="@+id/call_screen_answer_without_video"
             android:layout_width="56dp"
@@ -347,12 +375,26 @@
             android:layout_marginBottom="5dp"
             android:contentDescription="@string/WebRtcCallScreen__answer_without_video"
             android:visibility="gone"
-            app:layout_constraintBottom_toTopOf="@id/call_screen_answer_call"
+            app:layout_constraintBottom_toTopOf="@id/call_screen_answer_without_video_label"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:srcCompat="@drawable/webrtc_call_screen_answer_without_video"
             tools:visibility="gone" />
 
+        <TextView
+            android:id="@+id/call_screen_answer_without_video_label"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="9dp"
+            android:hyphenationFrequency="normal"
+            android:text="@string/WebRtcCallScreen__answer_without_video"
+            android:textColor="@color/core_white"
+            android:visibility="gone"
+            app:layout_constraintBottom_toTopOf="@id/call_screen_answer_call"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:visibility="gone" />
+
         <LinearLayout
             android:id="@+id/call_screen_start_call_controls"
             android:layout_width="match_parent"