Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; public class Main { public static int getPackageVersionNum(Context context) { PackageManager pm = context.getPackageManager(); PackageInfo pi = null; int versionNum = 0; try { pi = pm.getPackageInfo(context.getPackageName(), 0); versionNum = pi.versionCode; } catch (NameNotFoundException e) { e.printStackTrace(); } return versionNum; } }