Roku Developer Program

[NewbyDeveloper]

Hi

As part of an app I'm writing I want to show a slideshow of user pictures.

I can see the commands ifSlideshow mentioned - with setcontent - etc.

But an example would allow me to understand it.

Is there a simple example anywhere that uses this command?

Thanks

[belltown]

https://github.com/chrishoffman/roku-picasa

[NewbyDeveloper]

Many thanks - I will check that out.

[NewbyDeveloper]

Also...rather than a full blown slide show facility - is there a simple bit of code that will just take a url to a JPEG/JPG/PNG/GIF and display it on the screen until the user presses OK or back button?

[belltown]

Sub Main ()
    displayImage ("http://www.welikeviral.com/files/2014/12/8325_8_site.jpeg")
End Sub

Function displayImage (imageUrl As String) As Void
    port = CreateObject ("roMessagePort")
    ui = CreateObject ("roImageCanvas")
    ui.SetMessagePort (port)
    ui.SetRequireAllImagesToDraw (True)
    ui.SetLayer (1, {Url: imageUrl})
    ui.Show ()
    While True
        msg = Wait (0, port)
        If Type (msg) = "roImageCanvasEvent"
            If msg.IsScreenClosed ()
                Exit While
            Else If msg.IsRemoteKeyPressed ()
                key = msg.GetIndex ()
                If key = 0              ' Back Button
                    ui.Close ()
                Else If key = 6         ' OK Button
                    ui.Close ()
                EndIf
            EndIf   
        EndIf
    End While
End Function

[belltown]

Or this:

Sub Main ()
    displaySlideShow ([{Url: "http://www.welikeviral.com/files/2014/12/8325_8_site.jpeg"}])
End Sub

Function displaySlideShow (contentList As Object) As Void
    port = CreateObject ("roMessagePort")
    ui = CreateObject ("roSlideShow")
    ui.SetMessagePort (port)
    ui.SetContentList (contentList)
    ui.Show ()
    While True
        msg = Wait (0, port)
        If Type (msg) = "roSlideShowEvent"
            If msg.IsScreenClosed ()
                Exit While
            Else If msg.IsRemoteKeyPressed ()
                key = msg.GetIndex ()
                If key = 0              ' Back Button
                    ui.Close ()
                Else If key = 6         ' OK Button
                    ui.Close ()
                EndIf
            EndIf   
        EndIf
    End While
End Function

[NewbyDeveloper]

Thanks so much.

[NewbyDeveloper]

Thanks again - another question...

With the ("roSlideShow") example - I see you passing across the url to the jpeg...
and I've looked at the documentation online - but non the wiser....

How do you pass across an array of files to let the slide show show all those images one after the other?

[belltown]

"NewbyDeveloper" wrote:
Thanks again - another question...

With the ("roSlideShow") example - I see you passing across the url to the jpeg...
and I've looked at the documentation online - but non the wiser....

How do you pass across an array of files to let the slide show show all those images one after the other?

I'm actually passing an array of urls, hence the square brackets,[ ], around the url list.The list just happens to contain only one item, but could have been written like this, for example:

        displaySlideShow ([
                            {Url: "http://www.welikeviral.com/files/2014/12/8325_8_site.jpeg"}
                            {Url: "http://www.welikeviral.com/files/2015/01/Hide-And-Seek-3.jpg"}
                            {Url: "http://www.welikeviral.com/files/2015/01/Hide-And-Seek-5.jpg"}
                        ])

Or this:

contentList = []
contentList.Push ({Url: "http://www.welikeviral.com/files/2014/12/8325_8_site.jpeg"})
contentList.Push ({Url: "http://www.welikeviral.com/files/2015/01/Hide-And-Seek-3.jpg"})
contentList.Push ({Url: "http://www.welikeviral.com/files/2015/01/Hide-And-Seek-5.jpg"})
displaySlideShow (contentList)

[NewbyDeveloper]

That's brilliant. Thanks.