Calling specific button made from Loop

Getting Started Newbie Questions
#1

I have made a table of buttons that looks like this:

local t = {"one", "two", "three"} local buttons = {} for i = 1, #t do buttons[#buttons+1] = widget.newButton { id = #buttons, label = t[i], height = 70, width = 70, onRelease = btnHandle } buttons[i].x = (i\*30) + (i\*50) buttons[i].y = 300 end

In my btnHandle function for when it is released, how do I call specific buttons to do different functions? Example: If the first button is pressed, it should print “correct” but the second and third button should print “wrong”.

I can get it to print if a button was pressed at all, but cannot figure out how to differentiate between which button was pressed. Would it just be easier to create separate buttons with different onRelease functions? 

#2

That is what you have the id for.

Set id = i

Then in your handle, check event.target.id and react accordingly

Cheers,

Tommy

#3

Hi,

I used your original code and added the function btnHandle and it worked.

Here is the code with some smaller modifications:

local widget = require("widget") local t = {[1] = "one", [2] = "two", [3] = "three"} local buttons = {} function btnHandle(event) print(event.target.id) end for i = 1, #t do buttons[i] = widget.newButton { id = i, label = t[i], height = 70, width = 70, onRelease = btnHandle } buttons[i].x = (i\*30) + (i\*50) buttons[i].y = 300 end

Best regards,

Tomas

#4

It does work!  It’s frustrating sometimes for me to think I am progressing my learning of lua in Corona, but then forget simple things like event.target.  Thanks for all the help!

#5

That is what you have the id for.

Set id = i

Then in your handle, check event.target.id and react accordingly

Cheers,

Tommy

#6

Hi,

I used your original code and added the function btnHandle and it worked.

Here is the code with some smaller modifications:

local widget = require("widget") local t = {[1] = "one", [2] = "two", [3] = "three"} local buttons = {} function btnHandle(event) print(event.target.id) end for i = 1, #t do buttons[i] = widget.newButton { id = i, label = t[i], height = 70, width = 70, onRelease = btnHandle } buttons[i].x = (i\*30) + (i\*50) buttons[i].y = 300 end

Best regards,

Tomas

#7

It does work!  It’s frustrating sometimes for me to think I am progressing my learning of lua in Corona, but then forget simple things like event.target.  Thanks for all the help!