Java tutorial
//package com.java2s; //License from project: Open Source License import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; public class Main { public static int getAppVersionCode(Context context) { PackageManager pm = context.getPackageManager(); PackageInfo pi; try { pi = pm.getPackageInfo(context.getPackageName(), 0); return pi.versionCode; } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return 0; } public static PackageInfo getPackageInfo(Context context) { PackageInfo info = null; try { String packageName = context.getPackageName(); info = context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_ACTIVITIES); } catch (Exception e) { e.printStackTrace(); } return info; } }