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