title: Samsung Galaxy XCover/Active button
body: <p>the Galaxy S4/S5/S6 Active and the Galaxy XCover models have this extra hardware button. In the settings the user can choose which app the button should open when it is pressed.</p>
  
  <p>I'm developing an app that is specifically targeted at the Galaxy XCover 3. When the user opens the app for the first time, I want to ask the user if they want to let the hardware button open my app. </p>
  
  <p>I have tried to register a broadcastreceiver on the "Camera button" event, but this doesn't work.</p>
  
  <p>Does anyone know how I could achieve this result?</p>