Java tutorial
//package com.java2s; //License from project: Apache License import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; public class Main { public static String getAppVersionName(Context context) { String version = "0"; try { version = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionName; } catch (PackageManager.NameNotFoundException e) { throw new RuntimeException("the application not found"); } return version; } public static String getPackageName(Context contex) { PackageManager manager = contex.getPackageManager(); try { PackageInfo info = manager.getPackageInfo(contex.getPackageName(), 0); return info.packageName; } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return null; } }