title: make Bluetooth Discoverable
body: <p>I want to make Bluetooth Discoverable , is there any way and does android allow my application to do this ?</p>
  
  <p>I have found a link for this , but I do not know how can I do this .</p>
  
  <pre><code>[http://developer.android.com/reference/android/provider/Settings.System.html#BLUETOOTH_DISCOVERABILITY][1]
  </code></pre>