visibility ("lights out") API.

1. Views may setSystemUiVisibility() to recommend that
the system chrome (status bar or other UI) show or hide
itself.  (This functionality was previously available only
via the FLAG_FULLSCREEN window flag for some SystemUI
implementations.)

2. Views may register a OnSystemUiVisibilityChangedListener
on a view, and find out when the system UI actually
appears or disappears, allowing apps to coordinate the
appearance of their own UI if desired.

Bug: 3241144
Change-Id: Ia1758d94099182d49a1e3688ea2738ae4995b829

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/StatusBar/src/com/android/statusbartest/StatusBarTest.java b/tests/StatusBar/src/com/android/statusbartest/StatusBarTest.java
index 563f28c..5fd946e 100644
--- a/tests/StatusBar/src/com/android/statusbartest/StatusBarTest.java
+++ b/tests/StatusBar/src/com/android/statusbartest/StatusBarTest.java
@@ -27,6 +27,8 @@ import android.app.PendingIntent;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.StatusBarManager;
+import android.content.Context;
+import android.util.AttributeSet;
 import android.os.Vibrator;
 import android.os.Bundle;
 import android.os.Handler;
@@ -36,6 +38,7 @@ import android.os.SystemClock;
 import android.widget.RemoteViews;
 import android.widget.Toast;
 import android.os.PowerManager;
+import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
 
@@ -46,6 +49,13 @@ public class StatusBarTest extends TestActivity
     NotificationManager mNotificationManager;
     Handler mHandler = new Handler();
 
+    View.OnSystemUiVisibilityChangeListener mOnSystemUiVisibilityChangeListener
+            = new View.OnSystemUiVisibilityChangeListener() {
+        public void onSystemUiVisibilityChange(int visibility) {
+            Log.d(TAG, "onSystemUiVisibilityChange visibility=" + visibility);
+        }
+    };
+
     @Override
     protected String tag() {
         return TAG;
@@ -60,6 +70,20 @@ public class StatusBarTest extends TestActivity
     }
 
     private Test[] mTests = new Test[] {
+        new Test("STATUS_BAR_HIDDEN") {
+            public void run() {
+                View v = findViewById(android.R.id.list);
+                v.setSystemUiVisibility(View.STATUS_BAR_HIDDEN);
+                v.setOnSystemUiVisibilityChangeListener(mOnSystemUiVisibilityChangeListener);
+            }
+        },
+        new Test("not STATUS_BAR_HIDDEN") {
+            public void run() {
+                View v = findViewById(android.R.id.list);
+                v.setSystemUiVisibility(View.STATUS_BAR_VISIBLE);
+                v.setOnSystemUiVisibilityChangeListener(null);
+            }
+        },
         new Test("Double Remove") {
             public void run() {
                 Log.d(TAG, "set 0");