Java tutorial
//package com.java2s; /* * Copyright (c) 2016 Martin Pfeffer * * 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 { public static int getVersionCode(Context context) { try { PackageInfo pi = context.getPackageManager().getPackageInfo(context.getPackageName(), 0); return pi.versionCode; } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); return -1; } catch (NullPointerException e) { e.printStackTrace(); return -1; } } }