Updates metadata for "DataLayer" sample

Change-Id: I49cb5bb36ddac62c8a970ba3740ea877505eff81
diff --git a/wearable/wear/DataLayer/template-params.xml b/wearable/wear/DataLayer/template-params.xml
index 737e8c6..6c68e1d 100644
--- a/wearable/wear/DataLayer/template-params.xml
+++ b/wearable/wear/DataLayer/template-params.xml
@@ -14,31 +14,64 @@
  See the License for the specific language governing permissions and
  limitations under the License.
 -->
-
-
-
 <sample>
     <name>DataLayer</name>
     <group>Wearable</group>
     <package>com.example.android.wearable.datalayer</package>
-
-
-
     <!-- change minSdk if needed-->
     <minSdk>18</minSdk>
-
-
     <strings>
         <intro>
             <![CDATA[
-            You can cause the wearable to start an activity by pressing a button in the
-            companion app UI. You can also take a picture on the companion device, which will be transmitted as
-            an Asset for display on the wearable.
+            Sample demonstrating the usage of the GoogleApiClient in order to send data
+            from a handheld device to a wearable. The data transmitted is a picture taken by
+            the user of the sample.
             ]]>
         </intro>
     </strings>
-
     <template src="base"/>
     <template src="Wear"/>
+    <metadata>
+        <status>PUBLISHED</status>
+        <categories>UI, Wearable</categories>
+        <technologies>Android</technologies>
+        <languages>Java</languages>
+        <solutions>Mobile</solutions>
+        <level>ADVANCED</level>
+        <icon>Application/src/main/res/drawable-xxhdpi/ic_launcher.png</icon>
+        <screenshots>
+            <img>screenshots/phone_image.png</img>
+            <img>screenshots/wearable_background_image.png</img>
+        </screenshots>
+        <api_refs>
+            <ext>com.google.android.gms.wearable.DataApi</ext>
+            <ext>com.google.android.gms.wearable.DataEvent</ext>
+            <ext>com.google.android.gms.wearable.WearableListenerService</ext>
+        </api_refs>
+        <description>
+<![CDATA[
+This sample demonstrates how to work with a WearableListenerService,
+to produce and consume DataEvents and effectively work with the DataLayer.
+]]>
+        </description>
+        <intro>
+<![CDATA[
+This sample demonstrates how to make a handheld and an Android Wear device communicate
+using the [DataApi][2].
+It does this by sending a picture between connected devices.
 
+An Activity is being used for both the connected devices which implement their parts of
+the required interfaces.
+
+It showcases how to use an [WearableListenerService][1] to consume DataEvents
+as well as implementations for various required listeners when using the [DataApi][2],
+[MessageApi][3] and [NodeApi][4].
+
+[1]: https://developer.android.com/reference/com/google/android/gms/wearable/WearableListenerService.html
+[2]: https://developer.android.com/reference/com/google/android/gms/wearable/DataApi.html
+[3]: https://developer.android.com/reference/com/google/android/gms/wearable/MessageApi.html
+[4]: https://developer.android.com/reference/com/google/android/gms/wearable/NodeApi.html
+]]>
+        </intro>
+    </metadata>
 </sample>