Corona and iOS custom url schemes test case

build.settings

settings = {
	iphone =
	{
		plist =
		{
			CFBundleIconFile = "Icon.png",
			CFBundleIconFiles = {
			   "Icon.png", 
			   "Icon@2x.png", 
			   "Icon-72.png", 
			},
			UIApplicationExitsOnSuspend = false,	-- must be false for single sign-on to work
			CFBundleURLTypes =
			{
				{
					CFBundleURLSchemes =
					{
						"haakon",	-- replace XXXXXXXXX with your facebook appId
					}
				}
			}
		}
	}
}

main.lua

local count = 1

local textObject = display.newText( count .. ": Main.lua", 50, 240, 320, 0, native.systemFont, 12 )
textObject:setTextColor(255,0,0)

local function onSystemEvent( event )

	count = count + 1
	print( event.type, event.url )

	local t = event.type

	--on application OPEN state
	if ( event.type == "applicationOpen" ) then

		local suffix
		if ( event.url ) then
			suffix = event.url
		else
			suffix = "NO URL!"
		end
		t = t .. ' ' .. suffix

	--on application START state
	elseif ( event.type == "applicationStart" ) then
	end

	textObject.text = textObject.text .. '\n' .. count .. ': ' .. t
end

Runtime:addEventListener( "system", onSystemEvent )