im new to LUA and using it for the Taranis model airplane transmitter, a hobby project.
Im trying to write a custom menu for setting only the parameters in the radio I want to change.
Im kind of stuck: i have set up a basic menu, and once you pick a page listed it will load that page.if you hit another button, it will return to the picklist again.
However, although all pages load for the first time, it will always crash after load for the second or third time. It must be somthing with upvalues created where I dont see them??
Any help possible would be appreciated.
Code attached below.
local version="1.1"
--put the menus to load here, with selection as the starting menu item
--there needs to be a directory in the Scripts/MENUS directory with the same name, containing the menu content
--local menus= dofile( '/SCRIPTS/MENUS/menus.lua' ) --load the pages
local currentMenu=1
local createMenu
--local currentPage
local locked=true
local function cleanup()
currentPage=nil
config=nil
collectgarbage()
end
local function init()
if not currentPage then
cleanup()
currentPage = createMenu()
end
currentPage.init()
end
local function background()
locked = true --resetting the lock status after releasing it to escape menu
if not currentPage.background() then
cleanup()
currentPage = createMenu()
end
end
local function display(event)
if not currentPage.display(event) then
cleanup()
currentPage = createMenu()
end
end
--[[
UI to choose the task
--]]
createMenu = function()
local pages = dofile( "/SCRIPTS/MENUS/" .. menus[currentMenu].name .. '/pages.lua' ) --load the pagelist
config = dofile( '/SCRIPTS/MENUS/' .. menus[currentMenu].fileName .. '.lua' ) --load menu specific configurations
local function dummy()
return true
end
local function display(event)
menus[currentMenu].selection=config.selectPage(menus[currentMenu].selection,#pages,event)
if config.activateMenuItem(event) then
currentPage=nil
collectgarbage()
currentPage =
dofile( "/SCRIPTS/MENUS/" .. menus[currentMenu].name .. '/page_' .. pages[ menus[currentMenu].selection ].id .. '.lua' )
init() --force the load of the init of the new page
return true
end
if event == EVT_PAGE_LONG then
killEvents(event)
currentMenu = currentMenu - 1
if currentMenu < 1 then
currentMenu = #menus
end
return false
elseif event == EVT_PAGE_BREAK then
currentMenu = currentMenu + 1
if currentMenu > #menus then
currentMenu = 1
end
return false
end
if event == EVT_EXIT_BREAK then
locked = false
elseif locked == true then
lcd.lock()
end
lcd.clear()
for i=1,7 do
local att = 0
if i == 4 then
att = INVERS
end
local ii = i + menus[currentMenu].selection - 4
if ii >= 1 and ii <= #pages then
lcd.drawText( 10, -8 + 9 * i, pages [ ii ].id, att )
lcd.drawText( 20, -8 + 9 * i, pages [ ii ].desc, att )
end
end
lcd.drawText( 150, 2, pages.title, DBLSIZE )
lcd.drawText( 140, 20, menus[currentMenu].name,0 )
lcd.drawText( 162, 56, "version " .. version, SMLSIZE)
return true
end
return { init=dummy, background="" display=display }
end
return { init=init, background="" run=display }
