Attempting to have an object move in the direction user swipes the screen: Corona SDK

Question

I've just started with a basic Corona SDK project, and I have hit a bit of a roadblock. I have made objects and menus fine, and even added gravity to the game, but I was wondering if there was a simple method to have an object move when the user swiped the screen, and the object would move in that general direction.

Any help would be much appreciated, the code for my object is down below

    -- make a Chameleon 
local Chameleon = display.newImageRect( "Chameleon.png", 70, 70 )
Chameleon.x= 50
Chameleon.y= 440
    physics.addBody(Chameleon, "dynamic", {density=.1, bounce=.1, friction=.2, radius=12})

function touchScreen(event)
  -- print("touch")
end

Runtime:addEventListener("touch", touchScreen)

Answer 1

you can refer to the below code if you want to achieve draggable object with linear velocity just copy the code and make new project

local physics = require( "physics" )
physics.start()

local Rect = display.newRect(30,30,30,30)
Rect:setFillColor(255,0,0)

local flooring = display.newRect(0,display.contentHeight/1.1, display.contentWidth, 10)
    physics.addBody(Rect,"dynamic")
    physics.addBody(flooring,"static")

    local activateDash = false
    local bx = 0
    local by = 0

    heroTouch = function(event)
        if Rect then
            if event.phase == "began" then
                bx = event.x
                by = event.y
            elseif event.phase == "moved" then
                activateDash = true
            elseif event.phase == "ended" then
                if activateDash then
                    if _G.gX == 0 and _G.gY ~= 0 then
                        Rect:setLinearVelocity(event.x-bx,0)
                    elseif _G.gX ~= 0 and _G.gY == 0 then
                        Rect:setLinearVelocity(0,event.y-by)
                    else
                        Rect:setLinearVelocity(event.x-bx,event.y-by)
                    end
                    activateDash = false
                end
            end
        end
    end
Runtime:addEventListener("touch",heroTouch)

hope this can help