Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.util.Log; public class Main { public static String getAppVersionName(Context context) { String versionName = ""; try { // ---get the package info--- PackageManager pm = context.getPackageManager(); PackageInfo pi = pm.getPackageInfo(context.getPackageName(), 0); versionName = pi.versionName; if (versionName == null || versionName.length() <= 0) { return null; } } catch (Exception e) { Log.e("VersionInfo", "Exception", e); } return versionName; } }