Android Open Source - lucene Brightness Lock

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The source code is released under:

GNU General Public License

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Java Source Code

 * Copyright (C) 2011-2012 Takahiro Yoshimura
 */*  w w  w. j  a  v a  2  s  . co m*/
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <>.
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * AdMob library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU General Public License in all respects for
 * all of the code used other than AdMob.  If you modify file(s) with
 * this exception, you may extend this exception to your version of
 * the file(s), but you are not obligated to do so.  If you do not
 * wish to do so, delete this exception statement from your version.
 * If you delete this exception statement from all source files in the
 * program, then also delete it here.


import android.view.WindowManager;

public final class BrightnessLock
  private final Activity activity;
  public BrightnessLock(final Activity activity)
    this.activity = activity;
  public void hold()
    WindowManager.LayoutParams lp = this.activity.getWindow().getAttributes();
    lp.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
    lp.screenBrightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_FULL;
  public void release()
    WindowManager.LayoutParams lp = this.activity.getWindow().getAttributes();
    lp.flags &= ~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
    lp.screenBrightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE;

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