Roku Community

donavonc · ‎01-14-2016

Hi guys, i need a small help
when my app opens, it need to check , if the roku device is connected to network connection
and then check if this site is working http://360abyss.com/ fine (site is up or down )

if both are working, connect to app
if not show "check network connection" message pop box in app.
here is my appMain.brs code, please help 🙂

Sub Main()

    'initialize theme attributes like titles, logos and overhang color
    initTheme()

    'prepare the screen for display and get ready to begin
    screen=preShowHomeScreen("Register", "")
    if screen=invalid then
        print "unexpected error in preShowHomeScreen"
        return
    end if
	
	
	'register screen, check if linked if not show register screen, if yes connect to newhomescreen
    screenFacade = CreateObject("roPosterScreen")
    screenFacade.show()
	
	doRegistration()
	
    if isLinked()
    newhomescreen()
end if

End Sub


'*************************************************************
'** Set the configurable theme attributes for the application
'** 
'** Configure the custom overhang and Logo attributes
'** Theme attributes affect the branding of the application
'** and are artwork, colors and offsets specific to the app
'*************************************************************

Sub initTheme()

    app = CreateObject("roAppManager")
    theme = CreateObject("roAssociativeArray")

    theme.OverhangOffsetSD_X = "72"
    theme.OverhangOffsetSD_Y = "31"
    theme.OverhangSliceSD = "pkg:/images/Overhang_Background_SD.png"
    theme.OverhangLogoSD  = "pkg:/images/Overhang_Logo_SD.png"

    theme.OverhangOffsetHD_X = "125"
    theme.OverhangOffsetHD_Y = "35"
    theme.OverhangSliceHD = "pkg:/images/Overhang_Background_HD.png"
    theme.OverhangLogoHD  = "pkg:/images/Overhang_Logo_HD.png"

    app.SetTheme(theme)

End Sub

donavonc · ‎01-17-2016

please help me out.

RokuMarkn · ‎01-17-2016

roDeviceInfo.GetLinkStatus() will tell you whether there is a network connection.
The only way to check whether a "site" is working is to access one of the pages on the site. You can use roUrlTransfer to do that. You probably don't really need to check the network connection first, unless you're planning to display a different message in the two failure cases.

--Mark

EnTerr · ‎01-17-2016

Re whether player (thinks it) is conneected, see roDeviceInfo.GetLinkStatus().

For an end-to-end test, how about doing roUrlTransfer.GetToString() to a page of the site and check if the result contains something you expect (say "<html>" - or something more specific if you want to rule out error handler that returns readable html page)

ps. synchronicity!

donavonc · ‎01-17-2016

hi, thank you for your responds.can you please tell me where do i need to add that function roDeviceInfo.GetLinkStatus()
im a noob to roku development. can someone please put that code to my appmain.brs
i dont know where that function will need to be placed.
Thanks

NewManLiving · ‎01-17-2016

You can check the connection right before you execute anything that requires a connection. Downloading graphics/files or streaming for the most part. You can also set the device object to a port and listen for the event during normal execution of your channel if you need to know when an interruption of connection occurs during execution of your event loop

My Channels: 2D API Framework Presentation: https://owner.roku.com/add/2M9LCVC
Updated: 11-11-2015 - Completed Keyboard interface
The Joel Channel ( Final Beta )

donavonc · ‎01-17-2016

i tried putting the overhang hd, sd images and splash screen to a server and linked/replaced the link in manifest file.
and i put my website turn down and tried to open the app.
it skipped those graphics files and show white blank color on splash and in overhang hd, sd files field. it literally skipped those files ..

NewManLiving · ‎01-18-2016

Your problem can be other things apart from a network connection. If other ROKU channels are working, or you see connected at the top of the home screen, or you go to settings/ network and see that there is nothing wrong with the connection - then it's not the network. Could be invalid URL or security issues at the server

My Channels: 2D API Framework Presentation: https://owner.roku.com/add/2M9LCVC
Updated: 11-11-2015 - Completed Keyboard interface
The Joel Channel ( Final Beta )

donavonc · ‎01-18-2016

i only need to show if the user is not connected to internet show , "please connect to internet message".
please tell me how i can add. since im a noob to roku development.

if you like to share about the rourltransfer , please tell me how i can do that also.

Thanks

belltown · ‎01-18-2016

Sub Main ()
    url = "http://360abyss.com"
    If Not isConnected ()
        displayMessage ("You Have a Problem", "Check network connection")
    Else If Not isWorking (url)
        displayMessage ("You Have a Problem", url + " is down")
    Else
        displayMessage ("Everything is good", url + " is working")
    End If
End Sub

Function isConnected () As Boolean
    Return CreateObject ("roDeviceInfo").GetLinkStatus ()
End Function

Function isWorking (url As String, timeout = 10 As Integer) As Boolean
    working = False
    port = CreateObject ("roMessagePort")
    ut = CreateObject ("roUrlTransfer")
    ut.SetPort (port)
    ut.SetUrl (url)
    ut.EnableEncodings (True)
    If LCase (Left (url, Len ("https:"))) = "https:"
        ut.SetCertificatesFile ("common:/certs/ca-bundle.crt")
    End If
    If ut.AsyncGetToString ()
        While True
            msg = Wait (timeout * 1000, port)
            If msg = Invalid
                ut.AsyncCancel ()
                Exit While
            Else If Type (msg) = "roUrlEvent"
                If msg.GetInt () = 1
                    If msg.GetResponseCode () = 200
                        working = True
                    End If
                Else
                    ut.AsyncCancel ()
                End If
                Exit While
            End If
        End While
    End If
    Return working
End Function

Function displayMessage (title, message As String) As Void
    port = CreateObject ("roMessagePort")
    ui = CreateObject ("roMessageDialog")
    ui.SetMessagePort (port)
    ui.SetTitle (title)
    ui.SetText (message)
    ui.AddButton (1, "OK")
    ui.EnableBackButton (True)
    ui.Show ()
    While True
        msg = Wait (0, port)
        If msg <> Invalid
            If Type (msg) = "roMessageDialogEvent"
                If msg.IsScreenClosed ()
                    Exit While
                Else If msg.IsButtonPressed ()
                    ui.Close ()
                End If
            End If
        End If
    End While
End Function

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