Add default app prefs to app info

This makes them easier to discover and to know the state of them.

Bug: 27276982
Change-Id: I24a9d34d7e189b19df39cc0b9028b6412f76aa05

src/com/android/settings/applications/DefaultHomePreference.java

@@ -114,4 +114,24 @@ public class DefaultHomePreference extends AppListPreference {
         }
         return false;
     }
+
+    public static boolean hasHomePreference(String pkg, Context context) {
+        ArrayList<ResolveInfo> homeActivities = new ArrayList<ResolveInfo>();
+        PackageManager pm = context.getPackageManager();
+        pm.getHomeActivities(homeActivities);
+        for (int i = 0; i < homeActivities.size(); i++) {
+            if (homeActivities.get(i).activityInfo.packageName.equals(pkg)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public static boolean isHomeDefault(String pkg, Context context) {
+        ArrayList<ResolveInfo> homeActivities = new ArrayList<ResolveInfo>();
+        PackageManager pm = context.getPackageManager();
+        ComponentName def = pm.getHomeActivities(homeActivities);
+
+        return def != null && def.getPackageName().equals(pkg);
+    }
 }