Add new VoiceInteractionSession.setUiEnabled method

This allows the session to turn off all of its UI.  Use it
in onCreate() to prevent the session from ever creating any
of its UI.  Switched the window creation and initialization to
happen lazily to support this.

Test: New test added to android.assist.cts.LifecycleTest
Bug: 30999386

Change-Id: I8eacb3697c8ac9908c50b9577abea2d20597b016

1 files changed, 17 insertions, 14 deletions

diff --git a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java
index 5767f110f0a4..040173792406 100644
--- a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java
+++ b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionSession.java
@@ -172,12 +172,10 @@ public class MainInteractionSession extends VoiceInteractionSession
     @Override
     public void onHandleAssist(Bundle data, AssistStructure structure, AssistContent content) {
         mAssistStructure = structure;
-        if (mAssistStructure != null) {
-            if (mAssistVisualizer != null) {
+        if (mAssistVisualizer != null) {
+            if (mAssistStructure != null) {
                 mAssistVisualizer.setAssistStructure(mAssistStructure);
-            }
-        } else {
-            if (mAssistVisualizer != null) {
+            } else {
                 mAssistVisualizer.clearAssistData();
             }
         }
@@ -207,19 +205,24 @@ public class MainInteractionSession extends VoiceInteractionSession
 
     @Override
     public void onHandleScreenshot(Bitmap screenshot) {
-        if (screenshot != null) {
-            mScreenshot.setImageBitmap(screenshot);
-            mScreenshot.setAdjustViewBounds(true);
-            mScreenshot.setMaxWidth(screenshot.getWidth() / 3);
-            mScreenshot.setMaxHeight(screenshot.getHeight() / 3);
-            mFullScreenshot.setImageBitmap(screenshot);
-        } else {
-            mScreenshot.setImageDrawable(null);
-            mFullScreenshot.setImageDrawable(null);
+        if (mScreenshot != null) {
+            if (screenshot != null) {
+                mScreenshot.setImageBitmap(screenshot);
+                mScreenshot.setAdjustViewBounds(true);
+                mScreenshot.setMaxWidth(screenshot.getWidth() / 3);
+                mScreenshot.setMaxHeight(screenshot.getHeight() / 3);
+                mFullScreenshot.setImageBitmap(screenshot);
+            } else {
+                mScreenshot.setImageDrawable(null);
+                mFullScreenshot.setImageDrawable(null);
+            }
         }
     }
 
     void updateState() {
+        if (mTopContent == null) {
+            return;
+        }
         if (mState == STATE_IDLE) {
             mTopContent.setVisibility(View.VISIBLE);
             mBottomContent.setVisibility(View.GONE);