Revert "Log stack issues and start resize effort."

Bug: 8935057

This reverts commit b0245edae86b5811ea743c0f4cea095488304b1a.

3 files changed, 11 insertions, 37 deletions

diff --git a/cmds/am/src/com/android/commands/am/Am.java b/cmds/am/src/com/android/commands/am/Am.java
index cc69176..ce71e4a 100644
--- a/cmds/am/src/com/android/commands/am/Am.java
+++ b/cmds/am/src/com/android/commands/am/Am.java
@@ -104,7 +104,6 @@ public class Am extends BaseCommand {
                 "       am stop-user <USER_ID>\n" +
                 "       am stack create <TASK_ID> <RELATIVE_STACK_ID> <POSITION> <WEIGHT>\n" +
                 "       am stack movetask <STACK_ID> <TASK_ID> [true|false]\n" +
-                "       am stack resize <STACK_ID> <WEIGHT>\n" +
                 "       am stack dump\n" +
                 "\n" +
                 "am start: start an Activity.  Options are:\n" +
@@ -200,8 +199,6 @@ public class Am extends BaseCommand {
                 "am stack movetask: move <TASK_ID> from its current stack to the top (true) or" +
                 "   bottom (false) of <STACK_ID>.\n" +
                 "\n" +
-                "am stack resize: change <STACK_ID> relative size to new <WEIGHT>.\n" +
-                "\n" +
                 "am stack dump: list the hierarchy of stacks.\n" +
                 "\n" +
                 "<INTENT> specifications include these flags and arguments:\n" +
@@ -1484,8 +1481,6 @@ public class Am extends BaseCommand {
             runStackCreate();
         } else if (op.equals("movetask")) {
             runStackMoveTask();
-        } else if (op.equals("resize")) {
-            runStackResize();
         } else if (op.equals("dump")) {
             runStackDump();
         } else {
@@ -1533,18 +1528,6 @@ public class Am extends BaseCommand {
         }
     }
 
-    private void runStackResize() throws Exception {
-        String stackIdStr = nextArgRequired();
-        int stackId = Integer.valueOf(stackIdStr);
-        String weightStr = nextArgRequired();
-        float weight = Float.valueOf(weightStr);
-
-        try {
-            mAm.resizeStack(stackId, weight);
-        } catch (RemoteException e) {
-        }
-    }
-
     private void runStackDump() throws Exception {
         try {
             List<ActivityManager.StackInfo> stacks = mAm.getStacks();
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index 21a45e9..fad1bc5 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -6326,11 +6326,6 @@ public final class ActivityManagerService extends ActivityManagerNative
 
     @Override
     public void moveTaskToStack(int taskId, int stackId, boolean toTop) {
-        if (stackId == HOME_STACK_ID) {
-            Slog.e(TAG, "moveTaskToStack: Attempt to move task to home stack",
-                    new RuntimeException("here").fillInStackTrace());
-            return;
-        }
         synchronized (this) {
             mWindowManager.moveTaskToStack(taskId, stackId, toTop);
             mStackSupervisor.moveTaskToStack(taskId, stackId, toTop);
@@ -6393,8 +6388,8 @@ public final class ActivityManagerService extends ActivityManagerNative
 
     final void sendPendingThumbnail(ActivityRecord r, IBinder token,
             Bitmap thumbnail, CharSequence description, boolean always) {
-        TaskRecord task;
-        ArrayList<PendingThumbnailsRecord> receivers = null;
+        TaskRecord task = null;
+        ArrayList receivers = null;
 
         //System.out.println("Send pending thumbnail: " + r);
 
@@ -6420,11 +6415,12 @@ public final class ActivityManagerService extends ActivityManagerNative
             int N = mPendingThumbnails.size();
             int i=0;
             while (i<N) {
-                PendingThumbnailsRecord pr = mPendingThumbnails.get(i);
+                PendingThumbnailsRecord pr =
+                    (PendingThumbnailsRecord)mPendingThumbnails.get(i);
                 //System.out.println("Looking in " + pr.pendingRecords);
                 if (pr.pendingRecords.remove(r)) {
                     if (receivers == null) {
-                        receivers = new ArrayList<PendingThumbnailsRecord>();
+                        receivers = new ArrayList();
                     }
                     receivers.add(pr);
                     if (pr.pendingRecords.size() == 0) {
@@ -6442,7 +6438,8 @@ public final class ActivityManagerService extends ActivityManagerNative
             final int N = receivers.size();
             for (int i=0; i<N; i++) {
                 try {
-                    PendingThumbnailsRecord pr = receivers.get(i);
+                    PendingThumbnailsRecord pr =
+                        (PendingThumbnailsRecord)receivers.get(i);
                     pr.receiver.newThumbnail(
                         task != null ? task.taskId : -1, thumbnail, description);
                     if (pr.finished) {
diff --git a/services/java/com/android/server/am/ActivityStackSupervisor.java b/services/java/com/android/server/am/ActivityStackSupervisor.java
index 59a674e..f7f0812 100644
--- a/services/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/java/com/android/server/am/ActivityStackSupervisor.java
@@ -304,7 +304,7 @@ public class ActivityStackSupervisor {
             final int stackId = stack.mStackId;
             final int nextStackId = mWindowManager.removeStack(stackId);
             // TODO: Perhaps we need to let the ActivityManager determine the next focus...
-            if (getFocusedStack().mStackId == stackId) {
+            if (mFocusedStack.mStackId == stackId) {
                 mFocusedStack = nextStackId == HOME_STACK_ID ? null : getStack(nextStackId);
             }
         }
@@ -1189,13 +1189,6 @@ public class ActivityStackSupervisor {
                 mStackState = STACK_STATE_HOME_TO_FRONT;
             }
         } else {
-            if (r.task.stack == mHomeStack) {
-                // Try to correct, but how did we get here?
-                Slog.e(TAG, "!!! setFocusedStack: home stack used for non-home activity !!!",
-                        new RuntimeException("here").fillInStackTrace());
-                moveTaskToStack(r.task.taskId, getCorrectStack(r).mStackId, true);
-                // r.task.stack has now changed.
-            }
             mFocusedStack = r.task.stack;
             if (mStackState != STACK_STATE_HOME_IN_BACK) {
                 mStackState = STACK_STATE_HOME_TO_BACK;
@@ -1605,9 +1598,10 @@ public class ActivityStackSupervisor {
             // This not being started from an existing activity, and not part
             // of a new task...  just put it in the top task, though these days
             // this case should never happen.
-            targetStack = getCorrectStack(r);
+            ActivityStack lastStack = getLastStack();
+            targetStack = lastStack != null ? lastStack : mHomeStack;
             moveHomeStack(targetStack.isHomeStack());
-            ActivityRecord prev = targetStack.topActivity();
+            ActivityRecord prev = lastStack == null ? null : targetStack.topActivity();
             r.setTask(prev != null ? prev.task
                     : targetStack.createTaskRecord(getNextTaskId(), r.info, intent, true),
                     null, true);