Java tutorial
//package com.java2s; /* * Copyright (C) 2013 nohana, Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.app.Application; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; public class Main { private static final String[] INTERNAL_PATH = new String[] { "/data", "/system" }; public static boolean isInstalledOnSDCard(Context context) { return isInstalledOnSDCard((Application) context.getApplicationContext()); } public static final boolean isInstalledOnSDCard(Application app) { try { String packageName = app.getPackageName(); PackageInfo info = app.getPackageManager().getPackageInfo(packageName, 0); String dir = info.applicationInfo.sourceDir; for (String path : INTERNAL_PATH) { if (path.equals(dir.substring(0, path.length()))) return false; } } catch (PackageManager.NameNotFoundException exp) { throw new IllegalArgumentException(exp); } return true; } }