title: How to take a photo by Volume Key in Android Phone
body: <p>When I drove my bike, I like to take photos using my phone (Samsung i9103 android 2.3.6).<br>
  I want to sit with my Phone on the bike and take photos by pressing the Volume button on  my earphone.</p>
  
  <p>So what should i do?</p>
  
  <p>I'm a webdevloper but i can write an easy app, or is there any app that already can do this? starting the camera by volume button.</p>