' ********** Copyright 2020 Roku Corp. All Rights Reserved. **********
' Note that we need to import this file in MainLoaderTask.xml using relative path.
sub Init()
' set the name of the function in the Task node component to be executed when the state field changes to RUN
' in our case this method executed after the following cmd: m.contentTask.control = "run"(see Init method in MainScene)
m.top.functionName = "GetContent"
end sub
So this is the MainLoaderTask.brs from the SceneGraph example. I figured out how to put my feed weblink in it and it works when I run the test on Roku. But, I have multiple categories. What do I do to the code to make it so I can have multiple categories? I watched through Roku video examples and I'm still not sure how. Thank you.
sub GetContent()
' request the content feed from the API
xfer = CreateObject("roURLTransfer")
xfer.SetCertificatesFile("common:/certs/ca-bundle.crt")
rsp = xfer.GetToString()
rootChildren = []
rows = {}
' parse the feed and build a tree of ContentNodes to populate the GridView
json = ParseJson(rsp)
if json <> invalid
for each category in json
value = json.Lookup(category)
if Type(value) = "roArray" ' if parsed key value having other objects in it
row = {}
row.title = category
row.children = []
for each item in value ' parse items and push them to row
itemData = GetItemData(item)
seasons = GetSeasonData(item.seasons)
itemData.mediaType = category
if seasons <> invalid and seasons.Count() > 0
itemData.children = seasons
end if
row.children.Push(itemData)
end for
rootChildren.Push(row)
end if
end for
' set up a root ContentNode to represent rowList on the GridScreen
contentNode = CreateObject("roSGNode", "ContentNode")
contentNode.Update({
children: rootChildren
}, true)
' populate content field with root content node.
' Observer(see OnMainContentLoaded in MainScene.brs) is invoked at that moment
m.top.content = contentNode
end if
end sub
function GetItemData(video as Object) as Object
item = {}
' populate some standard content metadata fields to be displayed on the GridScreen
if video.longDescription <> invalid
item.description = video.longDescription
else
item.description = video.shortDescription
end if
item.hdPosterURL = video.thumbnail
item.title = video.title
item.releaseDate = video.releaseDate
item.id = video.id
item.categories = video.genres
if video.episodeNumber <> invalid
item.episodePosition = video.episodeNumber.ToStr()
end if
if video.content <> invalid
' populate length of content to be displayed on the GridScreen
item.length = video.content.duration
' populate meta-data for playback
item.url = video.content.videos[0].url
item.streamFormat = video.content.videos[0].videoType
end if
return item
end function
function GetSeasonData(seasons as Object) as Object
seasonsArray = []
if seasons <> invalid
episodeCounter = 0
for each season in seasons
if season.episodes <> invalid
episodes = []
for each episode in season.episodes
episodeData = GetItemData(episode)
' save season title for element to represent it on the episodes screen
episodeData.titleSeason = season.title
episodeData.numEpisodes = episodeCounter
episodeData.mediaType = "episode"
episodes.Push(episodeData)
episodeCounter ++
end for
seasonData = GetItemData(season)
' populate season's children field with its episodes
' as a result season's ContentNode will contain episode's nodes
seasonData.children = episodes
' set content type for season object to represent it on the screen as section with episodes
seasonData.contentType = "section"
seasonsArray.Push(seasonData)
end if
end for
end if
return seasonsArray
end function
