Roku Developer Program

[dacian_roman23]

I'm in a row list screen, and I have 3 row list elements. When i select one of them, i create a new scene that extends the task node that will download and parse a xml file. I am able to create a new screen , create my scene, but when i try to append any content to my scene, roku freezes, the telnet connection is lost, and then roku restarts itself . Suppose for the purpose of this example that when i select first element from the row i want to insert a rectangle such as <Rectangle id="middleRectangle" color="0xFFFFFF" width="50" height="50" translation="[250,225]"/> or when i select the second element i want to insert something as a label

function createContentTest(xml) as void
contentNode = createObject("roSGNode","ContentNode")
for each elem in xml
print elem.getName()
child = contentNode.createChild(elem.getName())
child.setFields(elem.getAttributes())
end for
screen = createObject("roSGScreen")
port = createObject("roMessagePort")
screen.setMessagePort(port)
scene = screen.createScene("seletedItemScene")
scene.appendChild(contentNode)

end function


####### selectedItemScene ####

<?xml version="1.0" encoding="utf-8" ?>

<component name="seletedItemScene" extends="Scene">

<children>
<Label text="aaa" translation="[0,0]" />
</children>

</component>

[dacian_roman23]

I'm trying to create a "roArray" object in my scenegraph init function, and i get invalid as a result. It is not possible ? This component is not listed in Scene Graph BrightScript Support table.

[maria_tarkany]

Can we change the colour of the RowList cursor?
I've noticed by default it's bright white... but the client would like to have it on blue colour.

[maria_tarkany]

How to set a field outside the xml file?

I want to send a value when I create a scene in main function:

sub Main()
    screen = CreateObject("roSGScreen")
    m.port = CreateObject("roMessagePort")
    screen.setMessagePort(m.port)
    scene = screen.CreateScene("FirstScene")
    scene.url = "http://wallpaperswide.com/download/" 'HERE I want to send the url value
    'in debugging mode scene.url or scene.top.url are both invalid here
    screen.show()
end sub

I have this xml with "FirstScene" Scene:

<?xml version="1.0" encoding="utf-8" ?> 
<component name="FirstScene" extends="Scene" >
	<interface>
		<field id="url" type="string"/>
	</interface>
	<script type="text/brightscript">
        <![CDATA[
          sub init()
               m.ep1 = m.top.createChild("Poster")
	       m.ep1.uri = m.top.url   'HERE I want to use the url
              'But when I debug the app, in terminal the m.top.url field has no value
	       m.ep1.width = "264"
	       m.ep1.height = "148"
	       m.ep1.translation = "[930,500]"          
          end sub
         ]]>
        </script>
</component>

[dacian_roman23]

Regarding what Maria said, a field from a component interface can be set only in the init function of that component or in other components init function ? Is there a way for setting a field like she is doing in the example ? If not, how can we solve this problem?

[neptor]

this gona help to make videogames?

[Komag]

nope.

[jul10]

"maria_tarkany" wrote:
How to set a field outside the xml file?

I want to send a value when I create a scene in main function:

sub Main()
    screen = CreateObject("roSGScreen")
    m.port = CreateObject("roMessagePort")
    screen.setMessagePort(m.port)
    scene = screen.CreateScene("FirstScene")
    scene.url = "http://wallpaperswide.com/download/" 'HERE I want to send the url value
    'in debugging mode scene.url or scene.top.url are both invalid here
    screen.show()
end sub

I have this xml with "FirstScene" Scene:

<?xml version="1.0" encoding="utf-8" ?> 
<component name="FirstScene" extends="Scene" >
	<interface>
		<field id="url" type="string"/>
	</interface>
	<script type="text/brightscript">
        <![CDATA[
          sub init()
               m.ep1 = m.top.createChild("Poster")
	       m.ep1.uri = m.top.url   'HERE I want to use the url
              'But when I debug the app, in terminal the m.top.url field has no value
	       m.ep1.width = "264"
	       m.ep1.height = "148"
	       m.ep1.translation = "[930,500]"          
          end sub
         ]]>
        </script>
</component>

In order to make this work you'll need to have an observer set up on the 'url' field in your scene.

So your init() in your FirstScene would look like this:

sub init()
      m.ep1 = m.top.createChild("Poster")   
      m.ep1.width = "264"
      m.ep1.height = "148"
      m.ep1.translation = "[930,500]"

      m.top.observeField("url", "onUrlChanged")
end sub

sub onUrlChanged()
      m.ep1.uri = m.top.url
end sub

The rest should remain unchanged.

Edit: Actually, you also need to assign the scene variables after calling screen.show() in your main()

[sudo97]

Hello, in roVideoScreen or roVideoPlayer we had maxBandwidth field and Streams field, so we could tune onto stream with quality we want. But in Scene Graph when I create the same thing:

			m.video = m.top.FindNode("VideoPlayer")
			videoContent = CreateObject("roSGNode", "ContentNode")
			videoContent.Streams = [{
			url: "link1",
			bitrate: 1975,
			quality: false,
			contentid: "aaa"},
			{
			url: "link2",
			bitrate: 921,
			quality: false,
			contentid: "bbb"}]
			m.video.content = videoContent
			m.video.ObserveField("errorMsg", "Error")
			m.video.control = "play"
		end sub

		sub Error()
			print m.video.errorMsg
		end sub

I recieve a "failed to create media player", so my question is how can I do the same things in Scene Graph as I used to do with roVideoPlayer, using maxBandwidth?

[aloudmind]

Is there a way to have http://sdkdocs.roku.com/display/sdkdoc/RowList scroll up and down as opposed to left and right?