touch

event.id

event.name

event.phase

event.pressure

event.target

event.time

event.x

event.xStart

event.xDelta

event.y

event.yStart

event.yDelta

函数监听器

local object = display.newImage( "ball.png" )
object.id = "ball object"

local function onObjectTouch( event )
    if ( event.phase == "began" ) then
        print( "Touch event began on: " .. event.target.id )
    elseif ( event.phase == "ended" ) then
        print( "Touch event ended on: " .. event.target.id )
    end
    return true
end
object:addEventListener( "touch", onObjectTouch )

表格监听器 1

local object = display.newImage( "ball.png" )
object.id = "ball object"

local function onObjectTouch( self, event )
    if ( event.phase == "began" ) then
        print( "Touch event began on: " .. self.id )
    end
    return true
end 

object.touch = onObjectTouch
object:addEventListener( "touch", object )

表格监听器 2

local object = display.newImage( "ball.png" )
object.id = "ball object"

function object:touch( event )
    if ( event.phase == "began" ) then
        print( "Touch event began on: " .. self.id )
    end
    return true
end 
object:addEventListener( "touch", object )

综合

local object = display.newImage( "ball.png" )
object.id = "ball object"

function object:touch( event )
    if ( event.phase == "began" ) then
        print( "Touch event began on: " .. self.id )

        -- Set touch focus
        display.getCurrentStage():setFocus( self )
        self.isFocus = true
    
    elseif ( self.isFocus ) then
        if ( event.phase == "moved" ) then
            print( "Moved phase of touch event detected." )

        elseif ( event.phase == "ended" or event.phase == "cancelled" ) then

            -- Reset touch focus
            display.getCurrentStage():setFocus( nil )
            self.isFocus = nil
        end
    end
    return true
end 
object:addEventListener( "touch", object )