title: "Protected Apps" setting on Huawei phones, and how to handle it
body: <p>I have a Huawei P8 with Android 5.0 that I'm using for testing an app. The app needs to be running in the background, as it tracks BLE regions.  </p>
  
  <p>I've discovered that Huawei has built in a "feature" called Protected Apps, that can be accessed from the phone settings (Battery Manager > Protected Apps). This allows elected apps to keep running after the screen is turned off.   </p>
  
  <p>Sensibly for Huawei, but unfortunately for me, it looks like it's opt-in, i.e. apps are out by default, and you have to manually put them in.
  This isn't a showstopper, as I can advise users in an FAQ or printed documentation about the fix, but I recently installed Tinder (for research purposes!), and noticed that it was put in the protected list automatically.  </p>
  
  <p>Does anyone know how I can do this for my app? Is it a setting in the manifest? Is it something Huawei has enabled for Tinder because it's a popular app?</p>