Java tutorial
//package com.java2s; import android.content.Context; public class Main { public static String getVersionCode(Context context) { String versionStr = ""; String pkName = context.getPackageName(); try { versionStr = String.valueOf(context.getPackageManager().getPackageInfo(pkName, 0).versionCode); } catch (Exception e) { versionStr = "1"; e.printStackTrace(); } return versionStr; } }