Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; public class Main { private static String getAppVer(Context context, String packageName) { String ver = null; PackageManager pm = context.getPackageManager(); try { PackageInfo pi = pm.getPackageInfo(packageName, 0); ver = pi.versionName; } catch (Exception e) { e.printStackTrace(); } return ver; } }