Java tutorial
//package com.java2s; import java.io.File; import android.app.Activity; import android.content.Intent; import android.net.Uri; public class Main { public static void installApk(Activity activity, String path) { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(path)), "application/vnd.android.package-archive"); activity.startActivity(intent); } }