Move preloading to boot complete.

Bug: 29320695
Change-Id: I14b5127b218597f3c32e647e0443a88b5a708ce1

packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java

@@ -184,7 +184,9 @@ public class RecentsImpl implements ActivityOptions.OnAnimationFinishedListener
         mHeaderBar = (TaskViewHeader) inflater.inflate(R.layout.recents_task_view_header,
                 null, false);
         reloadResources();
+    }
 
+    public void onBootCompleted() {
         // When we start, preload the data associated with the previous recent tasks.
         // We can use a new plan since the caches will be the same.
         RecentsTaskLoader loader = Recents.getTaskLoader();
@@ -197,10 +199,6 @@ public class RecentsImpl implements ActivityOptions.OnAnimationFinishedListener
         loader.loadTasks(mContext, plan, launchOpts);
     }
 
-    public void onBootCompleted() {
-        // Do nothing
-    }
-
     public void onConfigurationChanged() {
         reloadResources();
         mDummyStackView.reloadOnConfigurationChange();

packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java

@@ -314,8 +314,12 @@ public class SystemServicesProxy {
         if (includeFrontMostExcludedTask) {
             flags |= ActivityManager.RECENT_WITH_EXCLUDED;
         }
-        List<ActivityManager.RecentTaskInfo> tasks = mAm.getRecentTasksForUser(numTasksToQuery,
-                flags, userId);
+        List<ActivityManager.RecentTaskInfo> tasks = null;
+        try {
+            tasks = mAm.getRecentTasksForUser(numTasksToQuery, flags, userId);
+        } catch (Exception e) {
+            Log.e(TAG, "Failed to get recent tasks", e);
+        }
 
         // Break early if we can't get a valid set of tasks
         if (tasks == null) {