Java tutorial
//package com.java2s; /* * This file is part of the RootFW Project: https://github.com/spazedog/rootfw * * Copyright (c) 2015 Daniel Berglv * * RootFW is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * RootFW 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 Lesser General Public License for more details. * You should have received a copy of the GNU Lesser General Public License * along with RootFW. If not, see <http://www.gnu.org/licenses/> */ import java.util.HashMap; import java.util.Map; import android.os.Process; public class Main { public static Map<String, Integer> UIDS = new HashMap<String, Integer>(); public static Integer getUID(String name) { if (name != null) { if (name.matches("^[0-9]+$")) { return Integer.parseInt(name); } if (UIDS.containsKey(name)) { return UIDS.get(name); } else if (name.startsWith("u")) { Integer sep = name.indexOf("_"); if (sep > 0) { Integer uid = Integer.parseInt(name.substring(1, sep)); Integer gid = Integer.parseInt(name.substring(sep + 2)); return uid * 100000 + ((Process.FIRST_APPLICATION_UID + gid) % 100000); } } } return -10000; } }