Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager.NameNotFoundException; public class Main { public static int getVersionCode(Context app) { PackageInfo packageInfo = null; try { packageInfo = app.getPackageManager().getPackageInfo(app.getPackageName(), 0); return packageInfo.versionCode; } catch (NameNotFoundException e) { e.printStackTrace(); } return 1; } }