Extend LauncherApps service to expose enabled state.

Provide methods for checking if a package or activity
is enabled for a given profile.

Change-Id: If9cb15dc9398a709e60e7b689b664c24c49fcc16

core/java/android/content/pm/ILauncherApps.aidl

@@ -35,4 +35,6 @@ interface ILauncherApps {
     ResolveInfo resolveActivity(in Intent intent, in UserHandle user);
     void startActivityAsUser(in ComponentName component, in Rect sourceBounds,
             in Bundle opts, in UserHandle user);
+    boolean isPackageEnabled(String packageName, in UserHandle user);
+    boolean isActivityEnabled(in ComponentName component, in UserHandle user);
 }

core/java/android/content/pm/LauncherApps.java

@@ -186,6 +186,39 @@ public class LauncherApps {
         }
     }
 
+    /**
+     * Checks if the package is installed and enabled for a profile.
+     *
+     * @param packageName The package to check.
+     * @param user The UserHandle of the profile.
+     *
+     * @return true if the package exists and is enabled.
+     */
+    public boolean isPackageEnabledForProfile(String packageName, UserHandle user) {
+        try {
+            return mService.isPackageEnabled(packageName, user);
+        } catch (RemoteException re) {
+            return false;
+        }
+    }
+
+    /**
+     * Checks if the activity exists and it enabled for a profile.
+     *
+     * @param component The activity to check.
+     * @param user The UserHandle of the profile.
+     *
+     * @return true if the activity exists and is enabled.
+     */
+    public boolean isActivityEnabledForProfile(ComponentName component, UserHandle user) {
+        try {
+            return mService.isActivityEnabled(component, user);
+        } catch (RemoteException re) {
+            return false;
+        }
+    }
+
+
     /**
      * Adds a listener for changes to packages in current and managed profiles.
      *