Java tutorial
//package com.java2s; /* * Copyright 2012-2014 One Platform Foundation * * 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.content.Context; import android.content.pm.PackageManager; import android.support.annotation.NonNull; import android.support.annotation.Nullable; public class Main { /** * Returns the package name of the application installer. * * @param context The instance of {@link android.content.Context}. * @return The package name of the application installer. */ @Nullable public static String getPackageInstaller(@NonNull final Context context) { final PackageManager packageManager = context.getPackageManager(); return packageManager.getInstallerPackageName(context.getPackageName()); } }