Java tutorial
//package com.java2s; /* * Copyright (C) 2011-2012 Dominik Schrmann <dominik@dominikschuermann.de> * * This file is part of AdAway. * * AdAway 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. * * AdAway 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 AdAway. If not, see <http://www.gnu.org/licenses/>. * */ import android.annotation.SuppressLint; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.os.Build.VERSION; public class Main { /** * Checks if the application is installed on the SD card. See * http://stackoverflow.com/questions/ * 5814474/how-can-i-find-out-if-my-app-is-installed-on-sd-card * * @return <code>true</code> if the application is installed on the sd card */ @SuppressLint("SdCardPath") public static boolean isInstalledOnSdCard(Context context) { // check for API level 8 and higher if (VERSION.SDK_INT > android.os.Build.VERSION_CODES.ECLAIR_MR1) { PackageManager pm = context.getPackageManager(); try { PackageInfo pi = pm.getPackageInfo(context.getPackageName(), 0); ApplicationInfo ai = pi.applicationInfo; return (ai.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) == ApplicationInfo.FLAG_EXTERNAL_STORAGE; } catch (NameNotFoundException e) { // ignore } } // check for API level 7 (rooted devices) - check files dir try { String filesDir = context.getFilesDir().getAbsolutePath(); if (filesDir.startsWith("/data/")) { return false; } else if (filesDir.contains("/mnt/") || filesDir.contains("/sdcard/")) { return true; } } catch (Throwable e) { // ignore } return false; } }