Do not destroy the security method when pressing back.

Fixes jank when the user wants to unlock it next time.

Bug: 15088101
Change-Id: If7bc3d92d0f17abb5077b4c06248f368acb2879f

3 files changed, 11 insertions, 12 deletions

diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardSimpleHostView.java b/packages/Keyguard/src/com/android/keyguard/KeyguardSimpleHostView.java
index 5d5168c..3f6ced6 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardSimpleHostView.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardSimpleHostView.java
@@ -39,7 +39,7 @@ public class KeyguardSimpleHostView extends KeyguardViewBase {
 
     @Override
     public void cleanUp() {
-        // TODO Auto-generated method stub
+        getSecurityContainer().onPause();
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBouncer.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBouncer.java
index 2fa2a00..2bb80bf 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBouncer.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardBouncer.java
@@ -54,10 +54,6 @@ public class KeyguardBouncer {
         mWindowManager = windowManager;
     }
 
-    public void prepare() {
-        ensureView();
-    }
-
     public void show() {
         ensureView();
 
@@ -75,11 +71,15 @@ public class KeyguardBouncer {
         show();
     }
 
-    public void hide() {
+    public void hide(boolean destroyView) {
         if (mKeyguardView != null) {
             mKeyguardView.cleanUp();
         }
-        removeView();
+        if (destroyView) {
+            removeView();
+        } else if (mRoot != null) {
+            mRoot.setVisibility(View.INVISIBLE);
+        }
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
index 3849d8d..3f76d26 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarKeyguardViewManager.java
@@ -98,8 +98,7 @@ public class StatusBarKeyguardViewManager {
             mBouncer.show();
         } else {
             mPhoneStatusBar.showKeyguard();
-            mBouncer.hide();
-            mBouncer.prepare();
+            mBouncer.hide(false /* destroyView */);
         }
     }
 
@@ -124,7 +123,7 @@ public class StatusBarKeyguardViewManager {
         if (mShowing) {
             if (mOccluded) {
                 mPhoneStatusBar.hideKeyguard();
-                mBouncer.hide();
+                mBouncer.hide(false /* destroyView */);
             } else {
                 showBouncerOrKeyguard();
             }
@@ -184,7 +183,7 @@ public class StatusBarKeyguardViewManager {
         mShowing = false;
         mPhoneStatusBar.hideKeyguard();
         mStatusBarWindowManager.setKeyguardShowing(false);
-        mBouncer.hide();
+        mBouncer.hide(true /* destroyView */);
         mViewMediatorCallback.keyguardGone();
         updateStates();
     }
@@ -216,7 +215,7 @@ public class StatusBarKeyguardViewManager {
      */
     public boolean onBackPressed() {
         if (mBouncer.isShowing()) {
-            mBouncer.hide();
+            mBouncer.hide(false /* destroyView */);
             mPhoneStatusBar.showKeyguard();
             updateStates();
             return true;