title: How to make Google Now run continually in the background on Android
body: <p>I have a app idea in mind, but I haven't been able to figure out one part yet. In Google Now on Android, it gives you the following options to search:</p>
  
  <ol>
  <li>Type to search</li>
  <li>Click microphone to say your search</li>
  <li>Or just Say "Google" to make the voice search begin.</li>
  </ol>
  
  <p>I'd like to know how they made #3 work.  I need to have a keyword, that when said, initiates the voice search.</p>
  
  <p>I imagine they have some type of background running service constantly listening for voice actions. Does anyone know how this is achieved? </p>
  
  <p>Here is a image of the Google Now app:</p>
  
  <p><img src="https://i.stack.imgur.com/tX7Oe.png" alt="enter image description here"></p>