OboeTester: show build on main screen
diff --git a/apps/OboeTester/app/src/main/java/com/google/sample/oboe/manualtest/MainActivity.java b/apps/OboeTester/app/src/main/java/com/google/sample/oboe/manualtest/MainActivity.java
index ec1c36c..d7c47c4 100644
--- a/apps/OboeTester/app/src/main/java/com/google/sample/oboe/manualtest/MainActivity.java
+++ b/apps/OboeTester/app/src/main/java/com/google/sample/oboe/manualtest/MainActivity.java
@@ -22,6 +22,7 @@
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.media.AudioManager;
+import android.os.Build;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.AdapterView;
@@ -44,6 +45,7 @@
     private TextView mCallbackSizeTextView;
     protected TextView mDeviceView;
     private TextView mVersionTextView;
+    private TextView mBuildTextView;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -79,6 +81,9 @@
         } catch (PackageManager.NameNotFoundException e) {
             mVersionTextView.setText(e.getMessage());
         }
+
+        mBuildTextView = (TextView) findViewById(R.id.text_build_info);
+        mBuildTextView.setText(Build.DISPLAY);
     }
 
     private void updateNativeAudioUI() {
diff --git a/apps/OboeTester/app/src/main/res/layout/activity_main.xml b/apps/OboeTester/app/src/main/res/layout/activity_main.xml
index 1d94379..a35953d 100644
--- a/apps/OboeTester/app/src/main/res/layout/activity_main.xml
+++ b/apps/OboeTester/app/src/main/res/layout/activity_main.xml
@@ -139,4 +139,11 @@
         android:lines="1"
         android:text="@string/init_device" />
 
+    <TextView
+        android:id="@+id/text_build_info"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:text="V?" />
+
 </LinearLayout>