Implement issue #3221502: New APIs to support new back stack / task navigation

What this adds:

- A new Intent activity flag to completely replace an existing task.
- A new Intent activity flag to bring the current home task up behind
  a new task being started/brought to the foreground.
- New versions of startActivity() that take an array of Intents to be
  started, allowing applications to start a task in a specific state.
- A public moveTaskToFront() method on ActivityManager, with a new flag
  that allows the caller to have the task moved to the front with the
  current home task immediately behind it.

Change-Id: Ie8028d09acffb5349d98043c67676daba09f75c8

1 files changed, 5 insertions, 6 deletions

diff --git a/policy/src/com/android/internal/policy/impl/RecentApplicationsDialog.java b/policy/src/com/android/internal/policy/impl/RecentApplicationsDialog.java
index d9e8c2b..f53092d 100644
--- a/policy/src/com/android/internal/policy/impl/RecentApplicationsDialog.java
+++ b/policy/src/com/android/internal/policy/impl/RecentApplicationsDialog.java
@@ -138,13 +138,12 @@ public class RecentApplicationsDialog extends Dialog implements OnClickListener
                 RecentTag tag = (RecentTag)b.getTag();
                 if (tag.info.id >= 0) {
                     // This is an active task; it should just go to the foreground.
-                    IActivityManager am = ActivityManagerNative.getDefault();
-                    try {
-                        am.moveTaskToFront(tag.info.id);
-                    } catch (RemoteException e) {
-                    }
+                    final ActivityManager am = (ActivityManager)
+                            getContext().getSystemService(Context.ACTIVITY_SERVICE);
+                    am.moveTaskToFront(tag.info.id, ActivityManager.MOVE_TASK_WITH_HOME);
                 } else if (tag.intent != null) {
-                    tag.intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY);
+                    tag.intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY
+                            | Intent.FLAG_ACTIVITY_TASK_ON_HOME);
                     try {
                         getContext().startActivity(tag.intent);
                     } catch (ActivityNotFoundException e) {