How do I stop Music from playing with my stop button? - lua

Question

I am creating two buttons, using Corona SDK, one for playing music and the other for stopping. The program works fine up until i create the stop button and nothing works. There is no audio. Can someone help me resolve this please?
local widget = require("widget")
display.setStatusBar(display.HiddenStatusBar)
centerX = display.contentWidth * .5
centerY = display.contentHeight * .5
-- Background
local bg = display.newImageRect("bg_iPhone.png", 1100, 3200)
bg.x = centerX
bg.y = centerY
local isAudioOn = true
local soundJump = audio.loadSound("boing.mp3") --[[loadSound is for animations]]--
local soundMusic = audio.loadStream("HappyPants.wav") --[[loadStream is for background music]]--
--Sound function to play music
local function playSound()
if isAudioOn then
audio.play(soundMusic)
print("Boing!")
end
end
-- Button Function that controls what happens after button is pressed
local function buttonHit(action)
if action == "play" then
playSound()
elseif action == "stop" then
audio.stop(playSound)
end
end
-- Play Button
local playButton = widget.newButton{
label = "Play",
id = "play",
x = 330,
y = 500,
labelColor = { default={ 0, 19, 189 }, over={ 0, 19, 189, 1 } },
onPress = buttonHit
}
-- Stop Button
local stopButton = widget.newButton{
label = "Stop",
id = "stop",
x = 330,
y= 550,
labelColor = { default={ 0, 19, 189 }, over={ 0, 19, 189, 1 } },
onPress = buttonHit
}

Answer 1

Your buttonHit function is wrong.
You pass in the argument action, however, since you are using widget library, the only thing that gets passed into the function is event. Also, you've given the buttons an id, not an action. This id then belongs to the event target, i.e. the button that is being pressed.
What you want is something along the lines of:
local function buttonHit( event )
if event.target.id == "play" then
playSound()
else
audio.stop(playSound)
end
end