Roku Developer Program

[learner]

Hi,
Is it possible to put the video urls into different xml instead of putting all urls in single file as given in the example?
2)Any code to automacally logout if there is more than 2 hours of inactivity with a message?

[RokuJoel]

You can do it any way you want as long as you are creating valid XML. You can have a file for each video for example and retrieve it at playback time. The more separate files you have, the more of a bandwidth and CPU hit on your servers will be subject due to multiple retrieval requests, so might be best to have just one or two.

Of course you need to have at least one xml file that specifies where all the other files can be found.

For the Log Out:

You could set up a timer with rotimespan:

m.timer=createobject("roTimeSpan")

and then in every function in your channel make sure that the wait time is non zero, and, you can exit the channel when 2 hours completes:

while true
msg=wait(100,port)
if m.timer.totalseconds > 3600 then
dialog=createobject("roOneLineDialog")
Dialog.settitle("You have been logged out due to inactivity")
 end
end if
if msg <> invalid then
'reset the timer on any activity
m.timer.mark()
end if

You would probably want to make it a bit more elaborate than that but hopefully that gets you the gist of it.

- Joel

[learner]

hi, Joel
i would like to have th eminimum load on CPU but the problem is if i change the url
the urls on the applications is not updated if the user doesnt go out of the app and then the xml
gets updated
Any timeout for the xml or any other way to refresh the xml or exit the application when an update is given?

[RokuJoel]

yeah, you can refresh your XMl just the way I suggested forcing the channel to quit. For example, say you are on a PosterScreen:

sub main()
     m.timer=createobject("roTimeSpan")
     m.refreshtimer=createobject("roTimeSpan")
     m.timer.mark()
     m.refreshtimer.mark()
     showposterscreen()
end sub

function showposterscreen()
     data=getMyDataFromMyServer()
     port=createobject("romessageport")
     screen=createobject("roPosterScreen")
     screen.setcontentlist(data)
     screen.setport("port")
     screen.show()
     while true
          if refreshtimer.totalseconds() > 3600 then
               data=getMyDataFromMyServer()
               screen.setcontentlist([])
               screen.setcontentlist(data)
               screen.setfocusedlistitem(0)
               refreshtimer.mark()
          end if              

          msg=wait(100,port)
          
          if type(msg)="roPosterScreenEvent" then
               if msg.islistitemselected() then
                   ndx=msg.getindex()
                   showspringboardscreen(data[ndx])
               else if msg.isscreenclosed()
                    return -1
               end if
          end if
end while
end function

function getMyDataFromMyServer() as object
     url="http://myserver.com/mydata/data.xml"
     xfer=createobject("roURLTransfer")
     xfer.seturl(url)
     xmldata=xfer.gettostring()
     data=parseMyXML(xmldata)
     return data
end function

of course you have to use your own xml parser that you are currently using. The crucial thing here is you never use msg=wait(0,port) because that function will just sit there forever till someone hits a key, thus msg=wait(100,port) will only wait for 100milliseconds before checking if the timer has reached > 1 hour and if so, refresh the data.

- Joel