Have Activity Transitions activited by a new window attribute.

Bug 17006497

Window content transitions were being enabled by default in
the Material Theme so that Activity Transitions could be
enabled by default. Unfortunately, this gave the effect that
many applications did not want -- the default transition between
window content is a fade out/in. Here, a new attribute is
added: windowActivityTransitions that is enabled by default
in the Material theme and windowContentTransitions is disabled
by default in all themes.

Change-Id: Iab453d608f00a48ff7ab7f09ce84b52cf5f20294

1 files changed, 25 insertions, 16 deletions

diff --git a/core/java/android/view/Window.java b/core/java/android/view/Window.java
index ebc683a..63ab7d2 100644
--- a/core/java/android/view/Window.java
+++ b/core/java/android/view/Window.java
@@ -111,10 +111,19 @@ public abstract class Window {
     public static final int FEATURE_CONTENT_TRANSITIONS = 12;
 
     /**
+     * Enables Activities to run Activity Transitions either through sending or receiving
+     * ActivityOptions bundle created with
+     * {@link android.app.ActivityOptions#makeSceneTransitionAnimation(android.app.Activity,
+     * android.util.Pair[])} or {@link android.app.ActivityOptions#makeSceneTransitionAnimation(
+     * android.app.Activity, View, String)}.
+     */
+    public static final int FEATURE_ACTIVITY_TRANSITIONS = 13;
+
+    /**
      * Max value used as a feature ID
      * @hide
      */
-    public static final int FEATURE_MAX = FEATURE_CONTENT_TRANSITIONS;
+    public static final int FEATURE_MAX = FEATURE_ACTIVITY_TRANSITIONS;
 
     /** Flag for setting the progress bar's visibility to VISIBLE */
     public static final int PROGRESS_VISIBILITY_ON = -1;
@@ -1459,7 +1468,7 @@ public abstract class Window {
      * have {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend
      * {@link android.transition.Visibility} as exiting is governed by changing visibility
      * from {@link View#VISIBLE} to {@link View#INVISIBLE}. If transition is null, the views will
-     * remain unaffected. Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * remain unaffected. Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @param transition The Transition to use to move Views out of the scene when calling a
      *                   new Activity.
@@ -1475,7 +1484,7 @@ public abstract class Window {
      * visibility from {@link View#VISIBLE} to {@link View#INVISIBLE}. If transition is null,
      * the views will remain unaffected. If nothing is set, the default will be to use the same
      * transition as {@link #setExitTransition(android.transition.Transition)}.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @param transition The Transition to use to move Views into the scene when reentering from a
      *                   previously-started Activity.
@@ -1489,7 +1498,7 @@ public abstract class Window {
      * {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend
      * {@link android.transition.Visibility} as entering is governed by changing visibility from
      * {@link View#INVISIBLE} to {@link View#VISIBLE}. If <code>transition</code> is null,
-     * entering Views will remain unaffected.  Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * entering Views will remain unaffected.  Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @return the Transition to use to move Views into the initial Scene.
      * @attr ref android.R.styleable#Window_windowEnterTransition
@@ -1517,7 +1526,7 @@ public abstract class Window {
      * have {@link ViewGroup#isTransitionGroup} return true. Typical Transitions will extend
      * {@link android.transition.Visibility} as exiting is governed by changing visibility
      * from {@link View#VISIBLE} to {@link View#INVISIBLE}. If transition is null, the views will
-     * remain unaffected. Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * remain unaffected. Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @return the Transition to use to move Views out of the scene when calling a
      * new Activity.
@@ -1531,7 +1540,7 @@ public abstract class Window {
      * or ViewGroups that have {@link ViewGroup#isTransitionGroup} return true. Typical Transitions
      * will extend {@link android.transition.Visibility} as exiting is governed by changing
      * visibility from {@link View#VISIBLE} to {@link View#INVISIBLE}.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @return The Transition to use to move Views into the scene when reentering from a
      *         previously-started Activity.
@@ -1544,7 +1553,7 @@ public abstract class Window {
      * Scene. Typical Transitions will affect size and location, such as
      * {@link android.transition.ChangeBounds}. A null
      * value will cause transferred shared elements to blink to the final position.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @param transition The Transition to use for shared elements transferred into the content
      *                   Scene.
@@ -1559,7 +1568,7 @@ public abstract class Window {
      * value will cause transferred shared elements to blink to the final position.
      * If no value is set, the default will be to use the same value as
      * {@link #setSharedElementEnterTransition(android.transition.Transition)}.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @param transition The Transition to use for shared elements transferred out of the content
      *                   Scene.
@@ -1569,7 +1578,7 @@ public abstract class Window {
 
     /**
      * Returns the Transition that will be used for shared elements transferred into the content
-     * Scene. Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Scene. Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @return Transition to use for sharend elements transferred into the content Scene.
      * @attr ref android.R.styleable#Window_windowSharedElementEnterTransition
@@ -1578,7 +1587,7 @@ public abstract class Window {
 
     /**
      * Returns the Transition that will be used for shared elements transferred back to a
-     * calling Activity. Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * calling Activity. Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @return Transition to use for sharend elements transferred into the content Scene.
      * @attr ref android.R.styleable#Window_windowSharedElementReturnTransition
@@ -1590,7 +1599,7 @@ public abstract class Window {
      * before the shared elements are transferred to the called Activity. If the shared elements
      * must animate during the exit transition, this Transition should be used. Upon completion,
      * the shared elements may be transferred to the started Activity.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @param transition The Transition to use for shared elements in the launching Window
      *                   prior to transferring to the launched Activity's Window.
@@ -1603,7 +1612,7 @@ public abstract class Window {
      * Activity after it has returned the shared element to it start location. If no value
      * is set, this will default to
      * {@link #setSharedElementExitTransition(android.transition.Transition)}.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @param transition The Transition to use for shared elements in the launching Window
      *                   after the shared element has returned to the Window.
@@ -1614,7 +1623,7 @@ public abstract class Window {
     /**
      * Returns the Transition to use for shared elements in the launching Window prior
      * to transferring to the launched Activity's Window.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @return the Transition to use for shared elements in the launching Window prior
      * to transferring to the launched Activity's Window.
@@ -1625,7 +1634,7 @@ public abstract class Window {
     /**
      * Returns the Transition that will be used for shared elements reentering from a started
      * Activity after it has returned the shared element to it start location.
-     * Requires {@link #FEATURE_CONTENT_TRANSITIONS}.
+     * Requires {@link #FEATURE_ACTIVITY_TRANSITIONS}.
      *
      * @return the Transition that will be used for shared elements reentering from a started
      * Activity after it has returned the shared element to it start location.
@@ -1703,7 +1712,7 @@ public abstract class Window {
      * Returns the duration, in milliseconds, of the window background fade
      * when transitioning into or away from an Activity when called with an Activity Transition.
      * <p>When executing the enter transition, the background starts transparent
-     * and fades in. This requires {@link #FEATURE_CONTENT_TRANSITIONS}. The default is
+     * and fades in. This requires {@link #FEATURE_ACTIVITY_TRANSITIONS}. The default is
      * 300 milliseconds.</p>
      *
      * @return The duration of the window background fade to opaque during enter transition.
@@ -1716,7 +1725,7 @@ public abstract class Window {
      * Sets the duration, in milliseconds, of the window background fade
      * when transitioning into or away from an Activity when called with an Activity Transition.
      * <p>When executing the enter transition, the background starts transparent
-     * and fades in. This requires {@link #FEATURE_CONTENT_TRANSITIONS}. The default is
+     * and fades in. This requires {@link #FEATURE_ACTIVITY_TRANSITIONS}. The default is
      * 300 milliseconds.</p>
      *
      * @param fadeDurationMillis The duration of the window background fade to or from opaque