How to add and remove popup after clicking a button

Solar2D Lua Language
#1

I’m wanting it so that when I click a button It will have a popup at the bottom of the screen showing upgrade button. And if you tap the button again it will remove upgrade option. Right now I have 

function cartTap( event ) if data.cartOpen == 0 then display.newImageRect( "upgrade.png", display.contentWidth, display.contentHeight ); data.cartOpen = data.cartOpen + 1 print("cartOpen = " .. data.cartOpen) end if data.cartOpen == 1 then display.remove( "upgrade.png"); data.cartOpen = data.cartOpen - 1 print("cartOpen = " .. data.cartOpen) end print("Open Cart Options") end

Right now it shows the upgrade option but if I press the button again it doesnt remove it and it adds the image again. In the console if I press it once it says

cartOpen = 0

cartOpen = 1

Open Cart Options

If I press the button again it just repeats that.

#2

I’m wanting it so that when I click a button It will have a popup at the bottom of the screen showing upgrade button. And if you tap the button again it will remove upgrade option. Right now I have 

function cartTap( event ) if data.cartOpen == 0 then UPGRADE = display.newImageRect( “upgrade.png”, display.contentWidth, display.contentHeight ); data.cartOpen = data.cartOpen + 1 print("cartOpen = " … data.cartOpen) end if data.cartOpen == 1 then display.remove( UPGRADE); data.cartOpen = data.cartOpen - 1 print("cartOpen = " … data.cartOpen) end print(“Open Cart Options”) end

Right now it shows the upgrade option but if I press the button again it doesnt remove it and it adds the image again. In the console if I press it once it says

cartOpen = 0

cartOpen = 1

Open Cart Options

If I press the button again it just repeats that.

I am by far no expert and have not done anything related to remove before - (usually get composer to handle that stuff) but i would check the docs about display.new….

I have added to your code above - an idea of the possible problem - the code may not work as adjusted - you will need to take the idea  and adjust your own code.

But i do suspect that is the problem - UPGRADE = display…….

T.

#3

Your function is adding 1 to data.openCart to make it 1. And then straight after it checks to see whether data.openCart = 1 and reduces it back down to 0. You need an else statement so it only runs one section of the code.

[lua]

function cartTap( event )

if data.cartOpen == 0 then

  UPGRADE = display.newImageRect( “upgrade.png”, display.contentWidth, display.contentHeight );

  data.cartOpen = data.cartOpen + 1

  print("cartOpen = " … data.cartOpen)

else

  display.remove( UPGRADE);

  UPGRADE = nil

  data.cartOpen = data.cartOpen - 1

  print("cartOpen = " … data.cartOpen)

end

print(“Open Cart Options”)

end

[/lua]

#4

I’m wanting it so that when I click a button It will have a popup at the bottom of the screen showing upgrade button. And if you tap the button again it will remove upgrade option. Right now I have 

function cartTap( event ) if data.cartOpen == 0 then UPGRADE = display.newImageRect( “upgrade.png”, display.contentWidth, display.contentHeight ); data.cartOpen = data.cartOpen + 1 print("cartOpen = " … data.cartOpen) end if data.cartOpen == 1 then display.remove( UPGRADE); data.cartOpen = data.cartOpen - 1 print("cartOpen = " … data.cartOpen) end print(“Open Cart Options”) end

Right now it shows the upgrade option but if I press the button again it doesnt remove it and it adds the image again. In the console if I press it once it says

cartOpen = 0

cartOpen = 1

Open Cart Options

If I press the button again it just repeats that.

I am by far no expert and have not done anything related to remove before - (usually get composer to handle that stuff) but i would check the docs about display.new….

I have added to your code above - an idea of the possible problem - the code may not work as adjusted - you will need to take the idea  and adjust your own code.

But i do suspect that is the problem - UPGRADE = display…….

T.

#5

Your function is adding 1 to data.openCart to make it 1. And then straight after it checks to see whether data.openCart = 1 and reduces it back down to 0. You need an else statement so it only runs one section of the code.

[lua]

function cartTap( event )

if data.cartOpen == 0 then

  UPGRADE = display.newImageRect( “upgrade.png”, display.contentWidth, display.contentHeight );

  data.cartOpen = data.cartOpen + 1

  print("cartOpen = " … data.cartOpen)

else

  display.remove( UPGRADE);

  UPGRADE = nil

  data.cartOpen = data.cartOpen - 1

  print("cartOpen = " … data.cartOpen)

end

print(“Open Cart Options”)

end

[/lua]