Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; public class Main { public static String getVersion(Context context) { return getPackageInfo(context).versionName + "." + getPackageInfo(context).versionCode; } public static PackageInfo getPackageInfo(Context context) { PackageInfo packageInfo = null; try { PackageManager pm = context.getPackageManager(); packageInfo = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_CONFIGURATIONS); return packageInfo; } catch (Exception e) { e.printStackTrace(); } return packageInfo; } }