commit 04f4d6bb8892fe9b6e8f60d18a4f4dd051ab8124
author Wale Ogunwale <ogunwale@google.com> Wed Mar 11 09:23:25 2015 -0700
committer Wale Ogunwale <ogunwale@google.com> Wed Mar 11 14:56:02 2015 -0700
tree 23b843e80a3caece1bce27eacae6dc9359cd7bd0
parent 044644c71722c8094a69d7bc8e68f73032bf5c7c

Revert "Revert "Remove activity and window stacks when last task is removed.""

This reverts commit 7a7bf5ea48b12f044c591fb03ed3e58acd28ceb7.

services/core/java/com/android/server/am/ActivityStackSupervisor.java

diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 05297d4..65d2426 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -471,6 +471,16 @@
     }
 
     TaskRecord anyTaskForIdLocked(int id) {
+        return anyTaskForIdLocked(id, true);
+    }
+
+    /**
+     * Returns a {@link TaskRecord} for the input id if available. Null otherwise.
+     * @param id Id of the task we would like returned.
+     * @param restoreFromRecents If the id was not in the active list, but was found in recents,
+     *                           restore the task from recents to the active list.
+     */
+    TaskRecord anyTaskForIdLocked(int id, boolean restoreFromRecents) {
         int numDisplays = mActivityDisplays.size();
         for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
             ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
@@ -491,6 +501,10 @@
             return null;
         }
 
+        if (!restoreFromRecents) {
+            return task;
+        }
+
         if (!restoreRecentTaskLocked(task)) {
             if (DEBUG_RECENTS) Slog.w(TAG, "Couldn't restore task id=" + id + " found in recents");
             return null;
@@ -525,7 +539,7 @@
             if (mCurTaskId <= 0) {
                 mCurTaskId = 1;
             }
-        } while (anyTaskForIdLocked(mCurTaskId) != null);
+        } while (anyTaskForIdLocked(mCurTaskId, false) != null);
         return mCurTaskId;
     }
 
@@ -2717,7 +2731,7 @@
             final ArrayList<ActivityStack> homeDisplayStacks = mHomeStack.mStacks;
             for (int stackNdx = homeDisplayStacks.size() - 1; stackNdx >= 0; --stackNdx) {
                 final ActivityStack tmpStack = homeDisplayStacks.get(stackNdx);
-                if (!tmpStack.isHomeStack()) {
+                if (!tmpStack.isHomeStack() && tmpStack.mFullscreen) {
                     stack = tmpStack;
                     break;
                 }
@@ -3979,6 +3993,10 @@
         }
 
         void onTaskListEmptyLocked() {
+            mHandler.removeMessages(CONTAINER_TASK_LIST_EMPTY_TIMEOUT, this);
+            detachLocked();
+            deleteActivityContainer(this);
+            mHandler.obtainMessage(CONTAINER_CALLBACK_TASK_LIST_EMPTY, this).sendToTarget();
         }
 
         @Override
@@ -4067,13 +4085,6 @@
             return false;
         }
 
-        void onTaskListEmptyLocked() {
-            mHandler.removeMessages(CONTAINER_TASK_LIST_EMPTY_TIMEOUT, this);
-            detachLocked();
-            deleteActivityContainer(this);
-            mHandler.obtainMessage(CONTAINER_CALLBACK_TASK_LIST_EMPTY, this).sendToTarget();
-        }
-
         private void setSurfaceIfReadyLocked() {
             if (DEBUG_STACK) Slog.v(TAG, "setSurfaceIfReadyLocked: mDrawn=" + mDrawn +
                     " mContainerState=" + mContainerState + " mSurface=" + mSurface);