title: Install app without asking user
body: <p>My application will be running on hundreds of android devices belonging to a single owner and I may need to modify the software as an update at some point.</p>
  
  <p>I decided I should include a feature to check with the server for updates and download them, which is currently working.</p>
  
  <p>Installing the update is the difficult part. I need it done automatically. Preferably with no user interaction since there are hundreds of devices and it would be very time consuming to do each one manually.</p>
  
  <p>This is the problem, even with the device rooted, I can not find a generic way that each device can install the update without system specific information.</p>
  
  <p>I have read questions like this but can not find a proper answer: <a href="https://stackoverflow.com/questions/26926274/install-android-apk-without-prompt">Install Android APK without prompt</a></p>
  
  <p>The bottom answer executes but I can find no installed app, so I assume it failed.</p>