Java tutorial
//package com.java2s; import android.bluetooth.BluetoothAdapter; import android.content.Context; import android.content.Intent; public class Main { public static void enableDiscoverable(Context context) { Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE); discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); context.startActivity(discoverableIntent); } }