Add divider between QS and footer.

Bug: 70799330
Test: visual
Change-Id: I7f20771b0a8ba9c5fef0f48dc01ab3fb58515987
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSFooterImpl.java b/packages/SystemUI/src/com/android/systemui/qs/QSFooterImpl.java
index 76baee4..9c87e1b 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSFooterImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSFooterImpl.java
@@ -75,6 +75,7 @@
     private boolean mListening;
 
     private boolean mShowEmergencyCallsOnly;
+    private View mDivider;
     protected MultiUserSwitch mMultiUserSwitch;
     private ImageView mMultiUserAvatar;
 
@@ -93,8 +94,7 @@
     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
-        Resources res = getResources();
-
+        mDivider = findViewById(R.id.qs_footer_divider);
         mEdit = findViewById(android.R.id.edit);
         mEdit.setOnClickListener(view ->
                 Dependency.get(ActivityStarter.class).postQSRunnableDismissingKeyguard(() ->
@@ -162,6 +162,7 @@
     @Nullable
     private TouchAnimator createSettingsAlphaAnimator() {
         return new TouchAnimator.Builder()
+                .addFloat(mDivider, "alpha", 0, 1)
                 .addFloat(mCarrierText, "alpha", 0, 1)
                 .addFloat(mActionsContainer, "alpha", 0, 1)
                 .build();