diff --git a/tools/layoutlib/api/src/com/android/layoutlib/api/IDensityBasedResourceValue.java b/tools/layoutlib/api/src/com/android/layoutlib/api/IDensityBasedResourceValue.java
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+++ b/tools/layoutlib/api/src/com/android/layoutlib/api/IDensityBasedResourceValue.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.layoutlib.api;
+
+/**
+ * Represents an Android Resources that has a density info attached to it.
+ */
+public interface IDensityBasedResourceValue extends IResourceValue {
+    public static enum Density {
+        HIGH, MEDIUM, LOW, NODPI;
+    }
+
+    /**
+     * Returns the density associated to the resource.
+     */
+    Density getDensity();
+}