content: ' ********** Copyright 2020 Roku Corp.  All Rights Reserved. **********
  
  ' entry point of  MainScene
  ' Note that we need to import this file in MainScene.xml using relative path.
  sub Init()
      ' set background color for scene. Applied only if backgroundUri has empty value
      m.top.backgroundColor = "0x662D91"
      m.top.backgroundUri= "pkg:/images/background.jpg"
      m.loadingIndicator = m.top.FindNode("loadingIndicator") ' store loadingIndicator node to m
      InitScreenStack()
      ShowGridScreen()
      RunContentTask() ' retrieving content
  
      ' To handle Roku Pay, we need to create ChannelStore object in the global node
      m.global.AddField("channelStore", "node", false)
      m.global.channelStore = CreateObject("roSGNode", "ChannelStore") 
  end sub
  
  ' The OnKeyEvent() function receives remote control key events
  function OnkeyEvent(key as String, press as Boolean) as Boolean
      result = false
      if press
          ' handle "back" key press
          if key = "back"
              numberOfScreens = m.screenStack.Count()
              ' close top screen if there are two or more screens in the screen stack
              if numberOfScreens > 1
                  CloseScreen(invalid)
                  result = true
              end if
          end if
      end if
      ' The OnKeyEvent() function must return true if the component handled the event,
      ' or false if it did not handle the event.
      return result
  end function
  