Make launch behavior optional.

Bug: 72950561
Signed-off-by: Dave Smith <smithdave@google.com>

Change-Id: Ib0a43163f915af7b88b225108a84d0bfae3829c3

README.md

@@ -39,6 +39,24 @@ sample) but you can't hear your media playing through the audio jack, check if
 you have an HDMI display connected. If so, the audio will be routed to the HDMI
 output.
 
+## Enable auto-launch behavior
+
+This sample app is currently configured to launch only when deployed from your
+development machine. To enable the main activity to launch automatically on boot,
+add the following `intent-filter` to the app's manifest file:
+
+```xml
+<activity ...>
+
+    <intent-filter>
+        <action android:name="android.intent.action.MAIN"/>
+        <category android:name="android.intent.category.HOME"/>
+        <category android:name="android.intent.category.DEFAULT"/>
+    </intent-filter>
+
+</activity>
+```
+
 ## License
 
 Copyright 2017 The Android Open Source Project, Inc.
@@ -59,4 +77,4 @@ License for the specific language governing permissions and limitations under
 the License.
 
 [demo-yt]: https://www.youtube.com/watch?v=EDV_DaspP60&list=PLWz5rJ2EKKc-GjpNkFe9q3DhE2voJscDT&index=2
-[demo-gif]: demo1.gif
+[demo-gif]: demo1.gif

audio-sink/src/main/AndroidManifest.xml

@@ -36,12 +36,17 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
 
-            <!-- Launch activity automatically on Android Things boot -->
+            <!--
+              Uncomment the following intent filter block to enable this activity to
+              launch automatically on boot, and re-launch if the app terminates.
+            -->
+<!--
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
-                <category android:name="android.intent.category.IOT_LAUNCHER"/>
+                <category android:name="android.intent.category.HOME"/>
                 <category android:name="android.intent.category.DEFAULT"/>
             </intent-filter>
+-->
         </activity>
 
     </application>