Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.PackageManager; public class Main { public static String getVersionName(Context context) { String versionCode = null; try { versionCode = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionName; } catch (PackageManager.NameNotFoundException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } return versionCode; } }