1 files changed, 49 insertions, 0 deletions
diff --git a/platform_tools/android/apps/skar_java/src/main/java/com/google/skar/examples/helloskar/helpers/FullScreenHelper.java b/platform_tools/android/apps/skar_java/src/main/java/com/google/skar/examples/helloskar/helpers/FullScreenHelper.java
new file mode 100644
index 0000000000..3738b963dc
--- /dev/null
+++ b/platform_tools/android/apps/skar_java/src/main/java/com/google/skar/examples/helloskar/helpers/FullScreenHelper.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2017 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.skar.examples.helloskar.helpers;
+
+import android.app.Activity;
+import android.view.View;
+import android.view.WindowManager;
+
+/**
+ * Helper to set up the Android full screen mode.
+ */
+public final class FullScreenHelper {
+    /**
+     * Sets the Android fullscreen flags. Expected to be called from {@link
+     * Activity#onWindowFocusChanged(boolean hasFocus)}.
+     *
+     * @param activity the Activity on which the full screen mode will be set.
+     * @param hasFocus the hasFocus flag passed from the {@link Activity#onWindowFocusChanged(boolean
+     *                 hasFocus)} callback.
+     */
+    public static void setFullScreenOnWindowFocusChanged(Activity activity, boolean hasFocus) {
+        if (hasFocus) {
+            // https://developer.android.com/training/system-ui/immersive.html#sticky
+            activity
+                    .getWindow()
+                    .getDecorView()
+                    .setSystemUiVisibility(
+                            View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+                                    | View.SYSTEM_UI_FLAG_FULLSCREEN
+                                    | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+            activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        }
+    }
+}