Quicker exit animation for bottom dock on Keyguard

Change-Id: I9d07dc6ce7e2aec36bf797bd4041701315e71e0e
Fixes: 31274209

core/res/res/anim/dock_bottom_exit_keyguard.xml

@@ -0,0 +1,22 @@
+<!--
+  ~ Copyright (C) 2016 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
+  -->
+
+<!-- Animation for when a dock window at the bottom of the screen is exiting while on Keyguard -->
+<set xmlns:android="http://schemas.android.com/apk/res/android"
+    android:interpolator="@android:interpolator/fast_out_linear_in">
+    <translate android:fromYDelta="0" android:toYDelta="100%"
+        android:duration="200"/>
+</set>

core/res/res/values/symbols.xml

@@ -1459,6 +1459,7 @@
   <java-symbol type="anim" name="dock_top_exit" />
   <java-symbol type="anim" name="dock_bottom_enter" />
   <java-symbol type="anim" name="dock_bottom_exit" />
+  <java-symbol type="anim" name="dock_bottom_exit_keyguard" />
   <java-symbol type="anim" name="dock_left_enter" />
   <java-symbol type="anim" name="dock_left_exit" />
   <java-symbol type="anim" name="dock_right_enter" />

services/core/java/com/android/server/policy/PhoneWindowManager.java

@@ -2805,7 +2805,11 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             if (mNavigationBarPosition == NAV_BAR_BOTTOM) {
                 if (transit == TRANSIT_EXIT
                         || transit == TRANSIT_HIDE) {
-                    return R.anim.dock_bottom_exit;
+                    if (isKeyguardShowingAndNotOccluded()) {
+                        return R.anim.dock_bottom_exit_keyguard;
+                    } else {
+                        return R.anim.dock_bottom_exit;
+                    }
                 } else if (transit == TRANSIT_ENTER
                         || transit == TRANSIT_SHOW) {
                     return R.anim.dock_bottom_enter;