Roku Developer Program

[RokuMarkn]

The error message means "grid" is not an array, or "grid[msg.GetData()]" is not an array. You can do those steps separately to see which is the problem.

--Mark

[DukeOfMarshall]

Tried both of those and here are the results:

title = grid[msg.GetData()]

**THROWS**

Array operation attempted on variable not DIM'd. (runtime error &he7) in ...adUeh/pkg:/source/appMain.brs(95)
095:                  title = grid[msg.GetData()]

And........

title = grid

**THROWS**

Type Mismatch. (runtime error &h18) in ...skqSY/pkg:/source/appMain.brs(96)
096:                  print "Title => "+title

[RokuMarkn]

In the list of variables that is printed in the debugger, what is the type of grid? Your code expects it to be an array, but it doesn't seem to be.

[DukeOfMarshall]

grid is showing as roGridScreen

From the last output:

Local Variables:
global   &h0020 rotINTERFACE:ifGlobal
m        &h0010 bsc:roAssociativeArray, refcnt=2
request  &h0010 bsc:roUrlTransfer, refcnt=1
html     &h8010 bsc:roString (2.1 was String), refcnt=1
rsp      &h0010 bsc:roXMLElement, refcnt=1
port     &h0010 bsc:roMessagePort, refcnt=2
grid     &h0010 bsc:roGridScreen, refcnt=3
rowtitles &h0010 bsc:roArray, refcnt=1
j        &h0002 Integer val:4
total_count &h0002 Integer val:40
divided_count &h0004 Float val:4
iterator &h0002 Integer val:40
list     &h0010 bsc:roArray, refcnt=1
i        &h0002 Integer val:40
title    &h0010 bsc:roGridScreen, refcnt=3
sd_img   &h0010 bsc:roString, refcnt=3
hd_img   &h0010 bsc:roString, refcnt=3
o        &h0010 bsc:roAssociativeArray, refcnt=2
msg      &h0010 bsc:roGridScreenEvent, refcnt=1

[DukeOfMarshall]

Ok, so still not sure if it's even possible to pull the information from a selected item after the grid is built and displayed, but I created a band-aid; a work-around. I created my own content array before the looping to create the grid screen information. As the loop iterates through the information and builds the grid screen, I insert the information into my own array which I can then use later on at will.

    iterator = 0

    ' Create my own content array with the same number of items
    content = CreateObject("roArray", 4, true)

    for j = 0 to 3
    	list = CreateObject("roArray", 4, true)

    	for i = (0+iterator) to (iterator+9)
    		title = rsp.item[i].title.gettext()
    		sd_img = rsp.item[i]@sdImg
    		hd_img = rsp.item[i]@hdImg

            o = CreateObject("roAssociativeArray")
            o.ContentType = "episode"
            o.Title = title
            o.ShortDescriptionLine1 = "[ShortDescriptionLine1]"
            o.ShortDescriptionLine2 = "[ShortDescriptionLine2]"
            o.Description = ""
            o.Description = "[Description] "
            o.Rating = "NR"
            o.StarRating = "75"
            o.ReleaseDate = "[<mm/dd/yyyy]"
            o.Length = 5400
            o.SDPosterUrl = sd_img
            o.HDPosterUrl = hd_img
            o.Actors = []
            o.Actors.Push("[Actor1]")
            o.Actors.Push("[Actor2]")
            o.Actors.Push("[Actor3]")
            o.Director = "[Director]"
            list.Push(o)

             iterator = iterator + 1
         end for
         
         ' Add the content to our own custom array
         content[j] = list

         grid.SetContentList(j, list)
     end for
     grid.Show()
     while true
         msg = wait(0, port)
         if type(msg) = "roGridScreenEvent" then
             if msg.isScreenClosed() then
                 'return -1
             elseif msg.isListItemFocused()
                 print "Focused msg: ";msg.GetMessage();"row: ";msg.GetIndex();
                 print " col: ";msg.GetData()

                 ' Now that we know what is selected through the GetData() and GetIndex(), we can now access the information from our own array of information
                 title = content[msg.GetData()][msg.GetIndex()].Title
                 print "Title => "+title

             elseif msg.isListItemSelected()
                 print "Selected msg: ";msg.GetMessage();"row: ";msg.GetIndex();
                 print " col: ";msg.GetData()
             endif
         endif
     end while

[EnTerr]

"DukeOfMarshall" wrote:
Ok, so still not sure if it's even possible to pull the information from a selected item after the grid is built and displayed, but I created a band-aid; a work-around. I created my own content array before the looping to create the grid screen information. As the loop iterates through the information and builds the grid screen, I insert the information into my own array which I can then use later on at will.

Hm, yeah. Joel was confusing starting with

"RokuJoel" wrote:
You can look at a grid as an array of arrays of associative arrays.

That's easy to mis-interpret. You cannot "look at [the] grid as an array of ..." - no peeking. It's a black box, all it will give you back is row# and column#. But then he kinda/sorta redeemed what was said by adding at the end "create your grid as an array first, and then use it to set the rows of the grid" (it's better here to take that out of context).

Yes, it's up to you to keep track of what metadata you fed roGridScreen, in your own structures.

[DukeOfMarshall]

Aaahhh, that's starting to clarify.

So just to be more specific, you CAN'T get information from the grid screen. You HAVE to have a separate array of information to access from with the same indexes/structure of information.

Is that correct?

[DukeOfMarshall]

Ok, So I'm trying to set the url for each video in the grid screen meta data, but having no luck. Should it be set via StreamUrls or Stream?

[destruk]

Either will work.

[anilsoni85]

where is the documentation for properties of GridScreen. ifGridScreen or GridSceen component documentation only talks about the available methods.

 need to see documentation about focusedContent & rowItemSelected properties of grid and need to know if i can change focusedContent from brightscript while grid is not visible and if that will fire rowItemSelected event or not.