Mark/unmark activated state before the user switch begins.

This makes the screen freeze appear more fluid while switching users.

Bug: 146426568
Test: Manual
Change-Id: I7f18a560ce00c9037b182db1a5fc546480c43d91

packages/SystemUI/src/com/android/systemui/qs/tiles/UserDetailView.java

@@ -59,6 +59,7 @@ public class UserDetailView extends PseudoGridView {
 
         private final Context mContext;
         protected UserSwitcherController mController;
+        private View mCurrentUserView;
 
         public Adapter(Context context, UserSwitcherController controller) {
             super(controller);
@@ -89,6 +90,9 @@ public class UserDetailView extends PseudoGridView {
                 v.bind(name, item.picture, item.info.id);
             }
             v.setActivated(item.isCurrent);
+            if (item.isCurrent) {
+                mCurrentUserView = v;
+            }
             v.setDisabledByAdmin(item.isDisabledByAdmin);
             if (!item.isSwitchToEnabled) {
                 v.setEnabled(false);
@@ -107,6 +111,12 @@ public class UserDetailView extends PseudoGridView {
                 mController.startActivity(intent);
             } else if (tag.isSwitchToEnabled) {
                 MetricsLogger.action(mContext, MetricsEvent.QS_SWITCH_USER);
+                if (!tag.isAddUser && !tag.isRestricted && !tag.isDisabledByAdmin) {
+                    if (mCurrentUserView != null) {
+                        mCurrentUserView.setActivated(false);
+                    }
+                    view.setActivated(true);
+                }
                 switchTo(tag);
             }
         }

packages/SystemUI/src/com/android/systemui/statusbar/phone/UserAvatarView.java

@@ -74,6 +74,12 @@ public class UserAvatarView extends View {
         this(context, null);
     }
 
+    @Override
+    public void setActivated(boolean activated) {
+        super.setActivated(activated);
+        mDrawable.invalidateSelf();
+    }
+
     /**
      * @deprecated use {@link #setAvatar(Bitmap)} instead.
      */

packages/SystemUI/src/com/android/systemui/statusbar/policy/KeyguardUserSwitcher.java

@@ -257,6 +257,7 @@ public class KeyguardUserSwitcher {
 
         private Context mContext;
         private KeyguardUserSwitcher mKeyguardUserSwitcher;
+        private View mCurrentUserView;
 
         public Adapter(Context context, UserSwitcherController controller,
                 KeyguardUserSwitcher kgu) {
@@ -285,6 +286,9 @@ public class KeyguardUserSwitcher {
             // Disable the icon if switching is disabled
             v.setAvatarEnabled(item.isSwitchToEnabled);
             convertView.setActivated(item.isCurrent);
+            if (item.isCurrent) {
+                mCurrentUserView = convertView;
+            }
             convertView.setTag(item);
             return convertView;
         }
@@ -297,6 +301,12 @@ public class KeyguardUserSwitcher {
                 // tapping the guest user while it's current clears the session.
                 mKeyguardUserSwitcher.hideIfNotSimple(true /* animate */);
             } else if (user.isSwitchToEnabled) {
+                if (!user.isAddUser && !user.isRestricted && !user.isDisabledByAdmin) {
+                    if (mCurrentUserView != null) {
+                        mCurrentUserView.setActivated(false);
+                    }
+                    v.setActivated(true);
+                }
                 switchTo(user);
             }
         }