ui.newButton events?

Solar2D General Questions/Discussion
#1

When creating a new button with ui.newButton where can I find documentation about all the events that are supported. Right now I know 2: onEvent & onPress. Are there anymore?

local typeButton1 = ui.newButton{
default = “Images/Player1-Piece1-0.png”,
over = “Images/Player2-Piece1-0.png”,
onEvent = buttonHandler,
text = “”,
id = “button1”,
}

local typeButton1 = ui.newButton{
default = “Images/Player1-Piece1-0.png”,
over = “Images/Player2-Piece1-0.png”,
onPress = buttonHandler,
text = “”,
id = “button1”,
} [import]uid: 295 topic_id: 1343 reply_id: 301343[/import]

#2

The supported events are: onPress, onRelease, and onEvent.
The best place to find the information in the source code: ui.lua (included in the Corona SDK). You can also add your own events.

-Tom [import]uid: 6119 topic_id: 1343 reply_id: 3651[/import]

#3

Yeah. I saw that later. Also, something I found out the hard way is that using ‘onPress’ and ‘onRelease’ cause different things to happen then when using ‘onEvent’:

local button1 = ui.newButton{
default = “Button1.png”,
over = “Button1Over.png”,
onEvent = button1Handler,
text = “”,
id = “button1”,
}

local button2 = ui.newButton{
default = “Button2.png”,
over = “Button2Over.png”,
onRelease = button2Handler, – or onPress
text = “”,
id = “button2”,
}

local button1Handler = function(event)
print(“id = " … event.id …”, phase = " … event.phase )
end

local button2Handler = function(event)
print(“id = " … event.id …”, phase = " … event.phase )
– THIS ‘print’ STATEMENT WILL CAUSE AN ERROR BECAUSE ‘event.id’ AND ‘event.phase’ INFORMATION
– ISN’T RETURNED WITH ‘onPress’ OR ‘onRelease’ EVENTS TYPES.
– ‘event.id’ AND ‘event.phase’ INFORMATION IS RETURNED ONLY WITH THE ‘onEvent’ EVENT TYPE.
end
[import]uid: 295 topic_id: 1343 reply_id: 3662[/import]

#4

I had chosen to ignore all of ui anyway… Make it yourself and you know how it works… This “I’d” thing was added lately as far as I remember … I think it. Is much better to compare with event.target than to introduce additional I’d values and carry them around… [import]uid: 6928 topic_id: 1343 reply_id: 3675[/import]

#5

a press (or release) handler like this

local button1Press = function( event )  
 for i,j in pairs(event.target) do print(i,j) end  
end

will print the properties and methods of the button

the same code in an onEvent handler doesn’t work
and this

for i,j in pairs(event) do print(i,j) end

prints just id and phase

id is not recognized in press and release events,
but you can assign a variable to a button using buttonName.variable=something

[import]uid: 6459 topic_id: 1343 reply_id: 3727[/import]

#6

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[import]uid: 12172 topic_id: 1343 reply_id: 13185[/import]