Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.PackageManager.NameNotFoundException; public class Main { public static int getVersionCode(Context cx) { int versionCode = -1; try { versionCode = cx.getApplicationContext().getPackageManager().getPackageInfo(cx.getPackageName(), 0).versionCode; } catch (NameNotFoundException e) { // TODO Auto-generated catch block } return versionCode; } }