title: How to change apk name by using gradle like this format?
body: <p>I'd like to change "app-release.apk" file name to like following when I build an app by using gradle.</p>
  
  <pre>
  [format]
  (appname of package name)_V(version code)_(yyMMdd)_(R|T)
  
  [explain]
  (appname of package name) : example) com.example.myApp -> myApp
  (version code) : build version code 2.2.3 -> 223
  (yyMMdd) : build date 2015.11.18 -> 151118  
  (R|T) : if app is release, "R" but debug is "T".
  </pre>
  
  <p>If I generate an apk file in release, result is : myApp_V223_151118_R.apk.</p>
  
  <p>How to make a file name like this in gradle?</p>