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