Fix launcher updating when all of an app's activities disappear.

Also uses a more efficient way to get all activities for a package.

Change-Id: Ic360082f0a728cf1b388af18b22122bfce866149

src/com/android/launcher2/AllAppsList.java

@@ -150,6 +150,17 @@ class AllAppsList {
                     modified.add(applicationInfo);
                 }
             }
+        } else {
+            // Remove all data for this package.
+            for (int i = data.size() - 1; i >= 0; i--) {
+                final ApplicationInfo applicationInfo = data.get(i);
+                final ComponentName component = applicationInfo.intent.getComponent();
+                if (packageName.equals(component.getPackageName())) {
+                    removed.add(applicationInfo);
+                    mIconCache.remove(component);
+                    data.remove(i);
+                }
+            }
         }
     }
 
@@ -161,23 +172,10 @@ class AllAppsList {
 
         final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
         mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
+        mainIntent.setPackage(packageName);
 
         final List<ResolveInfo> apps = packageManager.queryIntentActivities(mainIntent, 0);
-        final List<ResolveInfo> matches = new ArrayList<ResolveInfo>();
+        return apps != null ? apps : new ArrayList<ResolveInfo>();
-
-        if (apps != null) {
-            // Find all activities that match the packageName
-            int count = apps.size();
-            for (int i = 0; i < count; i++) {
-                final ResolveInfo info = apps.get(i);
-                final ActivityInfo activityInfo = info.activityInfo;
-                if (packageName.equals(activityInfo.packageName)) {
-                    matches.add(info);
-                }
-            }
-        }
-
-        return matches;
     }
 
     /**