Resolve the correct home intent for secondary users

Fix some searches through the Activity stack.

This allows SetupWizard to be launched for the second user.

Change-Id: Icd306319f511c902557bd9985d80dda228e32d96

Author: Amith Yamasani

services/java/com/android/server/am/ActivityManagerService.java

@@ -2146,8 +2146,7 @@ boolean startHomeActivityLocked(int userId, UserStartedState startingUser) {
             intent.addCategory(Intent.CATEGORY_HOME);
         }
         ActivityInfo aInfo =
-            intent.resolveActivityInfo(mContext.getPackageManager(),
-                    STOCK_PM_FLAGS);
+            resolveActivityInfo(intent, STOCK_PM_FLAGS, userId);
         if (aInfo != null) {
             intent.setComponent(new ComponentName(
                     aInfo.applicationInfo.packageName, aInfo.name));
@@ -2170,6 +2169,29 @@ boolean startHomeActivityLocked(int userId, UserStartedState startingUser) {
         return true;
     }
 
+    private ActivityInfo resolveActivityInfo(Intent intent, int flags, int userId) {
+        ActivityInfo ai = null;
+        ComponentName comp = intent.getComponent();
+        try {
+            if (comp != null) {
+                ai = AppGlobals.getPackageManager().getActivityInfo(comp, flags, userId);
+            } else {
+                ResolveInfo info = AppGlobals.getPackageManager().resolveIntent(
+                        intent,
+                        intent.resolveTypeIfNeeded(mContext.getContentResolver()),
+                            flags, userId);
+    
+                if (info != null) {
+                    ai = info.activityInfo;
+                }
+            }
+        } catch (RemoteException e) {
+            // ignore
+        }
+
+        return ai;
+    }
+
     /**
      * Starts the "new version setup screen" if appropriate.
      */

services/java/com/android/server/am/ActivityStack.java

@@ -422,11 +422,10 @@ public void handleMessage(Message msg) {
     }
 
     final ActivityRecord topRunningActivityLocked(ActivityRecord notTop) {
-        // TODO: Don't look for any tasks from other users
         int i = mHistory.size()-1;
         while (i >= 0) {
             ActivityRecord r = mHistory.get(i);
-            if (!r.finishing && r != notTop) {
+            if (!r.finishing && r != notTop && r.userId == mCurrentUser) {
                 return r;
             }
             i--;
@@ -435,11 +434,10 @@ final ActivityRecord topRunningActivityLocked(ActivityRecord notTop) {
     }
 
     final ActivityRecord topRunningNonDelayedActivityLocked(ActivityRecord notTop) {
-        // TODO: Don't look for any tasks from other users
         int i = mHistory.size()-1;
         while (i >= 0) {
             ActivityRecord r = mHistory.get(i);
-            if (!r.finishing && !r.delayedResume && r != notTop) {
+            if (!r.finishing && !r.delayedResume && r != notTop && r.userId == mCurrentUser) {
                 return r;
             }
             i--;
@@ -457,12 +455,12 @@ final ActivityRecord topRunningNonDelayedActivityLocked(ActivityRecord notTop) {
      * @return Returns the HistoryRecord of the next activity on the stack.
      */
     final ActivityRecord topRunningActivityLocked(IBinder token, int taskId) {
-        // TODO: Don't look for any tasks from other users
         int i = mHistory.size()-1;
         while (i >= 0) {
             ActivityRecord r = mHistory.get(i);
             // Note: the taskId check depends on real taskId fields being non-zero
-            if (!r.finishing && (token != r.appToken) && (taskId != r.task.taskId)) {
+            if (!r.finishing && (token != r.appToken) && (taskId != r.task.taskId)
+                    && r.userId == mCurrentUser) {
                 return r;
             }
             i--;
@@ -1400,7 +1398,7 @@ final boolean resumeTopActivityLocked(ActivityRecord prev, Bundle options) {
             // Launcher...
             if (mMainStack) {
                 ActivityOptions.abort(options);
-                return mService.startHomeActivityLocked(0, null);
+                return mService.startHomeActivityLocked(mCurrentUser, null);
             }
         }