Adding internal Search function to Screnegraph Brightscript Channell - search

Question

I need to add search functionality to my Brightscript scenegraph script for a Roku Channel. Does anyone have a simple Search sample, or a script I can use to add to a "sliding panel" Roku channel script?
RoSearch has been depreciated.
The current page is very similar to the Sliding Panel example.
Need working Search feature on my Roku Channel.
<component name = "minikeyboardexample" extends = "Group" initialFocus = "exampleMiniKeyboard" >
<script type="text/brightscript" >
<![CDATA[
sub init()
m.testlabel = m.top.FindNode("testLabel")
m.testpostergrid = m.top.FindNode("testPosterGrid")
m.testpostergridcontent = createObject("roSGNode","ContentNode")
m.readPosterGridTask = createObject("roSGNode","postergridCR")
m.readPosterGridTask.setField("postergriduri","http://test-xml.xml")
m.readPosterGridTask.observeField("gotitem","buildpostergrid")
m.readPosterGridTask.observeField("gotcontent","showpostergrid")
m.readPosterGridTask.control = "RUN"
m.top.setFocus(true)
end sub
sub buildpostergrid()
gridposter = createObject("roSGNode","ContentNode")
gridposter.hdgridposterurl = m.readPosterGridTask.hdgridposterurl
gridposter.hdposterurl = m.readPosterGridTask.hdposterurl
gridposter.sdgridposterurl = m.readPosterGridTask.sdgridposterurl
gridposter.sdposterurl = m.readPosterGridTask.sdposterurl
gridposter.shortdescriptionline1 = m.readPosterGridTask.shortdescriptionline1
gridposter.shortdescriptionline2 = m.readPosterGridTask.shortdescriptionline2
gridposter.x = m.readPosterGridTask.xposterpos
gridposter.y = m.readPosterGridTask.yposterpos
gridposter.w = m.readPosterGridTask.wnumcols
gridposter.h = m.readPosterGridTask.hnumrows
m.testpostergridcontent.appendChild(gridposter)
end sub
sub showpostergrid()
m.testlabel.text = "Here's the PosterGrid: "
m.testpostergrid.content=m.testpostergridcontent
m.testpostergrid.visible=true
m.testpostergrid.setFocus(true)
end sub
]]>
</script>
<children>
<MiniKeyboard id = "exampleMiniKeyboard" />
<Label id="testLabel" translation="[100,32]" text="Building PosterGrid... " />
<PosterGrid
id="testPosterGrid"
translation="[100,100]"
basePosterSize="[240,240]"
itemSpacing="[32,32]"
caption1NumLines="1"
caption2NumLines="1"
numColumns="4"
numRows="3"
/>
</children>
</component>

Answer 1

first read following thinds :
https://developer.roku.com/en-gb/docs/developer-program/discovery/search/implementing-search.md
these code for a search functionality. it applies static way.
sub Main()
''Search Screen UI
'REM ******************************************************
'REM Main routine - example of search screen usage
'REM ******************************************************
print "start"
'toggle the search suggestions vs. search history behavior
'this allow you to generate both versions of the example below
displayHistory = false
history = CreateObject("roArray", 1, true)
'prepopulate the search history with sample results
history.Push("seinfeld")
history.Push("fraiser")
history.Push("cheers")
port = CreateObject("roMessagePort")
screen = CreateObject("roSearchScreen")
'commenting out SetBreadcrumbText() hides breadcrumb on screen
screen.SetBreadcrumbText("", "Search Channel")
screen.SetMessagePort(port)
if displayHistory
screen.SetSearchTermHeaderText("Recent Searches:")
screen.SetSearchButtonText("search")
screen.SetClearButtonText("clear history")
screen.SetClearButtonEnabled(true) 'defaults to true
screen.SetSearchTerms(history)
else
screen.SetSearchTermHeaderText("Suggestions:")
screen.SetSearchButtonText("search")
screen.SetClearButtonEnabled(false)
endif
print "Doing show screen..."
screen.Show()
print "Waiting for a message from the screen..."
' search screen main event loop
done = false
while done = false
msg = wait(0, screen.GetMessagePort())
if type(msg) = "roSearchScreenEvent"
if msg.isScreenClosed()
print "screen closed"
done = true
else if msg.isCleared()
print "search terms cleared"
history.Clear()
else if msg.isPartialResult()
print "partial search: "; msg.GetMessage()
if not displayHistory
screen.SetSearchTerms(GenerateSearchSuggestions(msg.GetMessage()))
endif
else if msg.isFullResult()
print "full search: "; msg.GetMessage()
history.Push(msg.GetMessage())
if displayHistory
screen.AddSearchTerm(msg.GetMessage())
end if
'uncomment to exit the screen after a full search result:
'done = true
else
print "Unknown event: "; msg.GetType(); " msg: "; sg.GetMessage()
endif
endif
endwhile
print "Exiting..."
End Sub
Function GenerateSearchSuggestions(partSearchText As String) As Object
availableContent = [
"ch1"
"ch2"
"ch3"
"ch4"
"ch5"
"ch6"
"ch7"
"ch8"
]
suggestions = []
if partSearchText <> ""
partSearchText = LCase(partSearchText)
for each available in availableContent
if available.Instr(partSearchText) >= 0
suggestions.Push(available)
end if
end for
end if
return suggestions
End Function
End sub
this code writes in main.brs file
I hope this code is helpful.

Answer 2

Most of the search screens in SceenGraph use a combination of MiniKeyboard with a combination of any type of list or grid, such are MarkupGrid. You add these component to your panels or a group component and manage the transition yourself.