Here you can find the source of getAppVersion(Context context)
private static int getAppVersion(Context context)
//package com.java2s; /*/* w w w .j av a 2s.c o m*/ * Copyright (C) 2013 The Android Open Source Project * * 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.PackageInfo; import android.content.pm.PackageManager; public class Main { /** * @return Application's version code from the {@code PackageManager}. */ private static int getAppVersion(Context context) { try { PackageInfo packageInfo = context.getPackageManager() .getPackageInfo(context.getPackageName(), PackageManager.PERMISSION_GRANTED); return packageInfo.versionCode; } catch (PackageManager.NameNotFoundException e) { // should never happen throw new RuntimeException("Could not get package name: " + e); } } }