Java tutorial
//package com.java2s; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; public class Main { public static String getOldVersionPath(Context context) { try { ApplicationInfo appInfo = context.getPackageManager().getApplicationInfo(context.getPackageName(), 0); return appInfo.sourceDir; } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } return null; } }