Merge changes Iebb13b14,I22c264ea

* changes:
  Fix keyguard icons aligned to start
  Use fullscreen user switcher if available

packages/SystemUI/res/layout/system_icons.xml

@@ -19,6 +19,7 @@
     android:id="@+id/system_icons"
     android:layout_width="wrap_content"
     android:layout_height="match_parent"
+    android:layout_gravity="center_vertical|end"
     android:gravity="center_vertical">
 
     <com.android.systemui.statusbar.phone.StatusIconContainer android:id="@+id/statusIcons"

packages/SystemUI/src/com/android/systemui/statusbar/phone/userswitcher/StatusBarUserSwitcherController.kt

@@ -16,9 +16,15 @@
 
 package com.android.systemui.statusbar.phone.userswitcher
 
+import android.content.Intent
 import android.view.View
+import com.android.systemui.animation.ActivityLaunchAnimator
+import com.android.systemui.flags.FeatureFlags
+import com.android.systemui.flags.Flags
+import com.android.systemui.plugins.ActivityStarter
 
 import com.android.systemui.qs.user.UserSwitchDialogController
+import com.android.systemui.user.UserSwitcherActivity
 import com.android.systemui.util.ViewController
 
 import javax.inject.Inject
@@ -30,7 +36,9 @@ class StatusBarUserSwitcherControllerImpl @Inject constructor(
     view: StatusBarUserSwitcherContainer,
     private val tracker: StatusBarUserInfoTracker,
     private val featureController: StatusBarUserSwitcherFeatureController,
-    private val userSwitcherDialogController: UserSwitchDialogController
+    private val userSwitcherDialogController: UserSwitchDialogController,
+    private val featureFlags: FeatureFlags,
+    private val activityStarter: ActivityStarter
 ) : ViewController<StatusBarUserSwitcherContainer>(view),
         StatusBarUserSwitcherController {
     private val listener = object : CurrentUserChipInfoUpdatedListener {
@@ -52,8 +60,17 @@ class StatusBarUserSwitcherControllerImpl @Inject constructor(
     override fun onViewAttached() {
         tracker.addCallback(listener)
         featureController.addCallback(featureFlagListener)
-        mView.setOnClickListener {
-            userSwitcherDialogController.showDialog(it)
+        mView.setOnClickListener { view: View ->
+            if (featureFlags.isEnabled(Flags.FULL_SCREEN_USER_SWITCHER)) {
+                val intent = Intent(context, UserSwitcherActivity::class.java)
+                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_NEW_TASK)
+
+                activityStarter.startActivity(intent, true /* dismissShade */,
+                        ActivityLaunchAnimator.Controller.fromView(view, null),
+                        true /* showOverlockscreenwhenlocked */)
+            } else {
+                userSwitcherDialogController.showDialog(view)
+            }
         }
 
         updateEnabled()