Fade scrim in unlock animation.

This also introduces a startTime which gets sent from window manager
to SystemUI, which tells when the animation should start, to allow
for a more synchronized animation with fading out the scrim and
fading in the activity behind.

Bug: 15163546
Change-Id: I16212b1ef9eb76f1f98734da1d14fc5b7e626937

5 files changed, 19 insertions, 35 deletions

diff --git a/core/java/android/view/WindowManagerPolicy.java b/core/java/android/view/WindowManagerPolicy.java
index d45d686..2b4677c 100644
--- a/core/java/android/view/WindowManagerPolicy.java
+++ b/core/java/android/view/WindowManagerPolicy.java
@@ -1199,6 +1199,9 @@ public interface WindowManagerPolicy {
 
     /**
      * Notifies the keyguard to start fading out.
+     *
+     * @param startTime the start time of the animation in uptime milliseconds
+     * @param fadeoutDuration the duration of the exit animation, in milliseconds
      */
-    public void startKeyguardExitAnimation(long fadeoutDuration);
+    public void startKeyguardExitAnimation(long startTime, long fadeoutDuration);
 }
diff --git a/core/java/com/android/internal/policy/IKeyguardService.aidl b/core/java/com/android/internal/policy/IKeyguardService.aidl
index f22800c..a5421f5 100644
--- a/core/java/com/android/internal/policy/IKeyguardService.aidl
+++ b/core/java/com/android/internal/policy/IKeyguardService.aidl
@@ -60,6 +60,9 @@ interface IKeyguardService {
     /**
      * Notifies that the activity behind has now been drawn and it's safe to remove the wallpaper
      * and keyguard flag.
+     *
+     * @param startTime the start time of the animation in uptime milliseconds
+     * @param fadeoutDuration the duration of the exit animation, in milliseconds
      */
-    oneway void startKeyguardExitAnimation(long fadeoutDuration);
+    oneway void startKeyguardExitAnimation(long startTime, long fadeoutDuration);
 }
diff --git a/core/res/res/anim/lock_screen_behind_enter.xml b/core/res/res/anim/lock_screen_behind_enter.xml
index 4a956d7..7e212be 100644
--- a/core/res/res/anim/lock_screen_behind_enter.xml
+++ b/core/res/res/anim/lock_screen_behind_enter.xml
@@ -18,10 +18,17 @@
 -->
 
 <set xmlns:android="http://schemas.android.com/apk/res/android"
-    android:background="#ff000000" android:shareInterpolator="false">
+    android:detachWallpaper="true" android:shareInterpolator="false" android:startOffset="60">
     <alpha
-        android:fromAlpha="1.0" android:toAlpha="1.0"
+        android:fromAlpha="0.0" android:toAlpha="1.0"
         android:fillEnabled="true" android:fillBefore="true"
-        android:interpolator="@interpolator/decelerate_quint"
-        android:duration="0"/>
+        android:interpolator="@interpolator/linear_out_slow_in"
+        android:duration="@integer/config_shortAnimTime"/>
+    <scale
+        android:fromXScale="0.95" android:toXScale="1.0"
+        android:fromYScale="0.95" android:toYScale="1.0"
+        android:pivotX="50%" android:pivotY="50%"
+        android:fillEnabled="true" android:fillBefore="true"
+        android:interpolator="@interpolator/linear_out_slow_in"
+        android:duration="@integer/config_shortAnimTime" />
 </set>
\ No newline at end of file
diff --git a/core/res/res/anim/lock_screen_wallpaper_behind_enter.xml b/core/res/res/anim/lock_screen_wallpaper_behind_enter.xml
deleted file mode 100644
index f7a6a65..0000000
--- a/core/res/res/anim/lock_screen_wallpaper_behind_enter.xml
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-/*
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
--->
-
-<set xmlns:android="http://schemas.android.com/apk/res/android"
-    android:detachWallpaper="true" android:shareInterpolator="false">
-    <alpha
-        android:fromAlpha="0.0" android:toAlpha="1.0"
-        android:fillEnabled="true" android:fillBefore="true"
-        android:interpolator="@interpolator/decelerate_quad"
-        android:startOffset="@android:integer/config_mediumAnimTime"
-        android:duration="@android:integer/config_shortAnimTime"/>
-</set>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 6e1629b..6cd7cd2 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -1679,7 +1679,6 @@
   <java-symbol type="anim" name="push_down_out" />
   <java-symbol type="anim" name="push_up_in" />
   <java-symbol type="anim" name="push_up_out" />
-  <java-symbol type="anim" name="lock_screen_wallpaper_behind_enter" />
   <java-symbol type="anim" name="lock_screen_behind_enter" />
 
   <java-symbol type="bool" name="config_alwaysUseCdmaRssi" />