Visual bench on native android

platform_tools/android/visualbench/src/com/skia/VisualBenchActivity.java

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+package com.skia;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.util.Log;
+import android.view.View;
+import android.view.WindowManager;
+
+public class VisualBenchActivity extends android.app.NativeActivity {
+    static {
+        System.loadLibrary("skia_android");
+    }
+    
+    @Override
+    public void onCreate(Bundle savedInstanceState) 
+    {
+        super.onCreate(savedInstanceState);
+    }
+  
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        super.onWindowFocusChanged(hasFocus);
+        if (!hasFocus) {
+            return;
+        }
+        getWindow().getDecorView().setSystemUiVisibility(
+            View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | // hide nav bar
+            View.SYSTEM_UI_FLAG_FULLSCREEN |// hide status bar
+            View.SYSTEM_UI_FLAG_IMMERSIVE);
+        
+        // Disable backlight to keep the system as cool as possible
+        // TODO make this configurable
+        Settings.System.putInt(getContentResolver(),
+            Settings.System.SCREEN_BRIGHTNESS_MODE,
+            Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL);
+        
+        WindowManager.LayoutParams lp = getWindow().getAttributes();
+        lp.screenBrightness = 0; // 0f - no backlight
+        getWindow().setAttributes(lp);
+    }
+}