Forum Discussion

djp's avatar
djp
Visitor
11 years ago

roSearchScreen Results Help

Hello guys,

I have a PHP background, but I am totally new to RoKu/BrightScript development, although I seem to do be doing pretty well for having a pretty well polished app so far from just scouring and figuring things out so far, I was hoping it didnt have to come to this, but I must ask for help I have exhausted all of my searching on this so far.

I have used the videoplayer application as a starting point, I have managed to get a link page working and the search screen appended to the category xml that the videoplayer uses as a main screen.

Here is what I cannot for the life of me get working. I would like the search results from the roSearchScreen to post to a xml page http://example.com/roku/search.php?search=STRING so i can create a category xml file on the fly and take it to a poster view with the results.

I tried duplicating the showHomeScreen() function to no success.

Anyone who can help me with this, I will be greatly indebted to you and would love to help you out with anything
Roku Developer Program

4 Replies

  • belltown's avatar
    belltown
    Roku Guru
    11 years ago
    You could do something like this to get the content list Xml from the search screen. Once you have that, write whatever code you need to display them on a poster screen:

    Sub Main()
        displaySearchUI ()
    End Sub

    Function displaySearchUI () As Void
        port = CreateObject ("roMessagePort")
        searchHistory = CreateObject ("roSearchHistory")
        searchHistoryList = searchHistory.GetAsArray ()
        ui = CreateObject ("roSearchScreen")
        ui.SetMessagePort (port)
        ui.SetSearchTermHeaderText ("Enter Search Terms")
        ui.SetSearchTerms (searchHistoryList)
        ui.SetSearchButtonText ("Search")
        ui.SetClearButtonEnabled (True)
        ui.Show ()
        While True
            msg = Wait (0, port)
            If Type (msg) = "roSearchScreenEvent"
                If msg.IsPartialResult ()                   ' Event fired for every character entered
                    result = msg.GetMessage ()              ' Partial string - all characters entered so far
                    partialSearchList = CreateObject ("roArray", searchHistoryList.Count (), False)
                    For Each item In searchHistoryList
                        If Len (item) >= Len (result) And Left (item, Len (result)) = result
                            partialSearchList.Push (item)
                        EndIf
                    End For
                    ui.SetSearchTerms (partialSearchList)   ' Display search history items that match partial search chars
                Else If msg.IsFullResult ()
                    searchTerm = msg.GetMessage ()
                    searchHistory.Push (searchTerm)
                    displaySearchResults (searchTerm)
                Else If msg.IsCleared ()
                    searchHistory.Clear ()
                Else If msg.IsScreenClosed ()
                    Exit While
                EndIf
            EndIf
        End While
    End Function

    Function displaySearchResults (searchTerm As String) As Void
        contentList = CreateObject ("roXmlElement")
        ut = CreateObject ("roUrlTransfer")
        url = "http://example.com/roku/search.php?search=" + ut.Escape (searchTerm)
        ut.SetUrl (url)
        data = ut.GetToString ()
        If data = ""
            Print "No data returned from: "; url
        Else
            If Not contentList.Parse (data)
                Print "Unable to parse Xml data:"
                Print data
            Else
                displayPosterUI (contentList)
            EndIf
        EndIf
    End Function

    Function displayPosterUI (contentList)
        Print "Displaying poster screen"
    End Function
  • djp's avatar
    djp
    Visitor
    11 years ago
    thank you, I have implemented your code and seems to be debugging correctly, how could i pass the contentlist to the xml parser thats already provided with the videoplayer sample to create a posterview??
  • belltown's avatar
    belltown
    Roku Guru
    11 years ago
    It depends on what the Xml is that you get from your search query. If it's a <Category> element then you may be able to call ParseCategoryNode() to get a top-level node that you can pass to showPosterScreen(). The exact details, I'll leave to you to figure out. You'll probably have to spend some time actually figuring out how the example code works so you can change it to do what you want, which is the whole point of the SDK "examples"; they're more of a learning tool than a template.
  • djp's avatar
    djp
    Visitor
    11 years ago
    Thank you sir, I was actually able to get this to work!