corona: Composer Template

composer-template.lua

local composer = require( "composer" )
local scene = composer.newScene()

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-- All code outside of the listener functions will only be executed ONCE 
-- unless "composer.removeScene()" is called.
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-- local forward references should go here
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-- "scene:create()"
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function scene:create( event )
  local sceneGroup = self.view
  
  -- Initialize the scene here.
  -- Example: add display objects to "sceneGroup", add touch listeners, etc.
end

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-- "scene:show()"
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function scene:show( event )
  local sceneGroup = self.view
  local phase = event.phase

  if ( phase == "will" ) then
    -- Called when the scene is still off screen (but is about to come on screen).
  elseif ( phase == "did" ) then
    -- Called when the scene is now on screen.
    -- Insert code here to make the scene come alive.
    -- Example: start timers, begin animation, play audio, etc.
  end
end

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-- "scene:hide()"
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function scene:hide( event )
  local sceneGroup = self.view
  local phase = event.phase

  if ( phase == "will" ) then
    -- Called when the scene is on screen (but is about to go off screen).
    -- Insert code here to "pause" the scene.
    -- Example: stop timers, stop animation, stop audio, etc.
  elseif ( phase == "did" ) then
    -- Called immediately after scene goes off screen.
  end
end

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-- "scene:destroy()"
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function scene:destroy( event )
  local sceneGroup = self.view

  -- Called prior to the removal of scene's view ("sceneGroup").
  -- Insert code here to clean up the scene.
  -- Example: remove display objects, save state, etc.
end

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-- Listener setup
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scene:addEventListener( "create", scene )
scene:addEventListener( "show", scene )
scene:addEventListener( "hide", scene )
scene:addEventListener( "destroy", scene )
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return scene

So Usefull thanks