Java tutorial
//package com.java2s; /** Copyright (C) 2013 Louis Teboul (a.k.a Androguide) * * admin@pimpmyrom.org || louisteboul@gmail.com * http://pimpmyrom.org || http://androguide.fr * 71 quai Clmenceau, 69300 Caluire-et-Cuire, FRANCE. * * 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 2 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 * 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 this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. **/ import android.content.pm.PackageManager; import android.util.Log; public class Main { @SuppressWarnings({ "UnusedDeclaration", "MethodWithMultipleReturnPoints", "ReturnOfNull", "NestedAssignment", "DynamicRegexReplaceableByCompiledPattern", "BreakStatement" }) // avoids hardcoding the tag private static final String TAG = Thread.currentThread().getStackTrace()[1].getClassName(); public static boolean isPackageInstalled(String packageName, PackageManager pm) { try { String mVersion = pm.getPackageInfo(packageName, 0).versionName; if (mVersion == null) { return false; } } catch (PackageManager.NameNotFoundException notFound) { Log.e(TAG, "Package could not be found!", notFound); return false; } return true; } }