Java tutorial
//package com.java2s; /* This file is part of Subsonic. Subsonic 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. Subsonic is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Subsonic. If not, see <http://www.gnu.org/licenses/>. Copyright 2009 (C) Sindre Mehus */ import android.content.Context; import android.net.wifi.WifiManager; import android.os.Build; public class Main { public static WifiManager.WifiLock createWifiLock(Context context, String tag) { WifiManager wm = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); int lockType = WifiManager.WIFI_MODE_FULL; // Use WIFI_MODE_FULL_HIGH_PERF if API level 12 or higher. if (Build.VERSION.SDK_INT >= 12) { lockType = 3; // WifiManager.WIFI_MODE_FULL_HIGH_PERF } return wm.createWifiLock(lockType, tag); } }