enable/disable button

[mogan]

How enable/disable button

for example 

resetButton:addEventListener(“tap”, resetTouch)

whether you can get a pointer on this event or disable/enable button? I want temporarily unactive button.

I do not know resetTouch function, because this determined in other lua file (local function).

[rob]

Perhaps you want to:

resetButton:removeEventListener(“tap”, resetTouch)

when you want the button to not be adtive and only add the event listener when you want it to be active?

[Danny]

If your using widget buttons, they have built in support for this via their isEnabled property, and method object:setEnabled( true/false )

[rob]

Perhaps you want to:

resetButton:removeEventListener(“tap”, resetTouch)

when you want the button to not be adtive and only add the event listener when you want it to be active?

[Danny]

If your using widget buttons, they have built in support for this via their isEnabled property, and method object:setEnabled( true/false )

[DragonGameStudio]

hello, im using widget buttoon, but when i call setEnabled(false), the button still do the routine,

and is it will turn into gray if the button is disabled?

and then when i create new button with isDisabled property set to false, the button stil can be touched and execute its event

i m using corona Version 2014.2511 (2014.11.18)

thank you

[rob]

widget.newButton() does not have a .isDisabled property.  It has an isEnabled constructor.  Perhaps if you posted your code, it would help us make sure we are talking about the same thing.

Rob

[DragonGameStudio]

i m sorry, isEnabled is what i mean

here is my function to create button

function createButton(_param)
    local _button = widget.newButton{
            id=_param.ID,
            isEnabled=true,
            width = _param.W,    height = _param.H,
            defaultFile = _param.DEFAULTFILE,    overFile = _param.OVERFILE,
            label = _param.LABEL, labelAlign = _param.LABELALIGN, labelColor= _param.LABELCOLOR,
            font = _param.FONTNAME, fontSize = _param.FONTSIZE,
            emboss = _param.EMBOSS
        };
    _button.x = _param.X;
    _button.y = _param.Y;
    return _button;
end;

even i put isEnabled = false, the button still can be touch and execute its event listener

like this

function createButton(_param)
    local _button = widget.newButton{
            id=_param.ID,
            isEnabled=true,
            width = _param.W,    height = _param.H,
            defaultFile = _param.DEFAULTFILE,    overFile = _param.OVERFILE,
            label = _param.LABEL, labelAlign = _param.LABELALIGN, labelColor= _param.LABELCOLOR,
            font = _param.FONTNAME, fontSize = _param.FONTSIZE,
            emboss = _param.EMBOSS,
            isEnabled = false
        };
    _button.x = _param.X;
    _button.y = _param.Y;
    return _button;
end;

[rob]

In your example, you have isEnabled twice.  I’m not sure how Lua handles that.  I did a quick test and isEnable = false does disable the button.

Rob

[DragonGameStudio]

im sorry for that, here is my complete code

----------------------------------------------------------------------------------------- -- -- main.lua -- ----------------------------------------------------------------------------------------- -- Your code here widget = require( "widget" ); local \_W = display.contentWidth; local \_H = display.contentHeight; \_DEFAULT\_FONT = {NAME = "Calibri", SIZE = 18 }; function createButton(\_param) local \_button = widget.newButton{ id=\_param.ID, isEnabled=false, width = \_param.W, height = \_param.H, defaultFile = \_param.DEFAULTFILE, overFile = \_param.OVERFILE, label = \_param.LABEL, labelAlign = \_param.LABELALIGN, labelColor= \_param.LABELCOLOR, font = \_param.FONTNAME, fontSize = \_param.FONTSIZE, emboss = \_param.EMBOSS }; \_button.x = \_param.X; \_button.y = \_param.Y; return \_button; end; local function buttonTouchEvent( event ) local t = event.target; local stage = display.getCurrentStage(); if t.id=="b1" then if event.phase == "ended" then widgetobj.bLalala2:setEnabled(false); native.showAlert( "Corona", "b1 pressed.", { "OK" }, function() end ) end; elseif t.id=="b2" then if event.phase == "ended" then native.showAlert( "Corona", "b2 pressed.", { "OK" }, function() end ) end; end; end; widgetobj= {}; widgetobj.bLalala1 = createButton( {X = \_W \* 0.85, Y = 0, W = 238, H=44, FONT = \_DEFAULT\_FONT.NAME, FONTSIZE = \_DEFAULT\_FONT.SIZE, DEFAULTFILE = "butt\_mode1.png", OVERFILE = "butt\_mode2.png", LABEL = "b1", ID="b1", LABELALIGN= "center", LABELCOLOR={ default={ 1, 1, 1 }, over={ 0, 0, 0, 0.5 }}, EMBOSS=true} ); widgetobj.bLalala1:addEventListener("touch", buttonTouchEvent); widgetobj.bLalala2 = createButton( {X = \_W \* 0.85, Y = 0, W = 238, H=44, FONT = \_DEFAULT\_FONT.NAME, FONTSIZE = \_DEFAULT\_FONT.SIZE, DEFAULTFILE = "butt\_mode1.png", OVERFILE = "butt\_mode2.png", LABEL = "b2", ID="b2", LABELALIGN= "center", LABELCOLOR={ default={ 1, 1, 1 }, over={ 0, 0, 0, 0.5 }}, EMBOSS=true} ); widgetobj.bLalala2:addEventListener("touch", buttonTouchEvent); widgetobj.bLalala1.x = display.contentCenterX; widgetobj.bLalala1.y = 50 widgetobj.bLalala2.x = display.contentCenterX; widgetobj.bLalala2.y = 100

[rob]

I see your problem.  You are adding a touch handler to the button which bypasses the buttons’ internal controls.  Instead do this:

function createButton(\_param)     local \_button = widget.newButton{             id=\_param.ID,             isEnabled=false,             width = \_param.W,    height = \_param.H,             defaultFile = \_param.DEFAULTFILE,    overFile = \_param.OVERFILE,             label = \_param.LABEL, labelAlign = \_param.LABELALIGN, labelColor= \_param.LABELCOLOR,             font = \_param.FONTNAME, fontSize = \_param.FONTSIZE,             emboss = \_param.EMBOSS,             onEvent = \_param.EVENTHANDLER,         };     \_button.x = \_param.X;     \_button.y = \_param.Y;     return \_button; end; widgetobj.bLalala1 = createButton(     {X = \_W \* 0.85, Y = 0,    W = 238, H=44,    FONT = \_DEFAULT\_FONT.NAME,    FONTSIZE = \_DEFAULT\_FONT.SIZE,     DEFAULTFILE = "butt\_mode1.png", OVERFILE = "butt\_mode2.png",          LABEL = "b1",  ID="b1", LABELALIGN= "center",     EVENTHANDLER = buttonTouchEvent,     LABELCOLOR={ default={ 1, 1, 1 }, over={ 0, 0, 0, 0.5 }}, EMBOSS=true} );

For isEnabled to work, the widget has to manage the adding and removing of the touch handler.  You don’t do it yourself.

As a small forum administrative point, in the future please use the <> button in the edit bar to post your code so that it’s formatted correctly.

Rob

[DragonGameStudio]

okay thank you, now it works fine

[DragonGameStudio]

hello, im using widget buttoon, but when i call setEnabled(false), the button still do the routine,

and is it will turn into gray if the button is disabled?

and then when i create new button with isDisabled property set to false, the button stil can be touched and execute its event

i m using corona Version 2014.2511 (2014.11.18)

thank you

[rob]

widget.newButton() does not have a .isDisabled property.  It has an isEnabled constructor.  Perhaps if you posted your code, it would help us make sure we are talking about the same thing.

Rob

[DragonGameStudio]

i m sorry, isEnabled is what i mean

here is my function to create button

function createButton(_param)
    local _button = widget.newButton{
            id=_param.ID,
            isEnabled=true,
            width = _param.W,    height = _param.H,
            defaultFile = _param.DEFAULTFILE,    overFile = _param.OVERFILE,
            label = _param.LABEL, labelAlign = _param.LABELALIGN, labelColor= _param.LABELCOLOR,
            font = _param.FONTNAME, fontSize = _param.FONTSIZE,
            emboss = _param.EMBOSS
        };
    _button.x = _param.X;
    _button.y = _param.Y;
    return _button;
end;

even i put isEnabled = false, the button still can be touch and execute its event listener

like this

function createButton(_param)
    local _button = widget.newButton{
            id=_param.ID,
            isEnabled=true,
            width = _param.W,    height = _param.H,
            defaultFile = _param.DEFAULTFILE,    overFile = _param.OVERFILE,
            label = _param.LABEL, labelAlign = _param.LABELALIGN, labelColor= _param.LABELCOLOR,
            font = _param.FONTNAME, fontSize = _param.FONTSIZE,
            emboss = _param.EMBOSS,
            isEnabled = false
        };
    _button.x = _param.X;
    _button.y = _param.Y;
    return _button;
end;

[rob]

In your example, you have isEnabled twice.  I’m not sure how Lua handles that.  I did a quick test and isEnable = false does disable the button.

Rob

[DragonGameStudio]

im sorry for that, here is my complete code

----------------------------------------------------------------------------------------- -- -- main.lua -- ----------------------------------------------------------------------------------------- -- Your code here widget = require( "widget" ); local \_W = display.contentWidth; local \_H = display.contentHeight; \_DEFAULT\_FONT = {NAME = "Calibri", SIZE = 18 }; function createButton(\_param) local \_button = widget.newButton{ id=\_param.ID, isEnabled=false, width = \_param.W, height = \_param.H, defaultFile = \_param.DEFAULTFILE, overFile = \_param.OVERFILE, label = \_param.LABEL, labelAlign = \_param.LABELALIGN, labelColor= \_param.LABELCOLOR, font = \_param.FONTNAME, fontSize = \_param.FONTSIZE, emboss = \_param.EMBOSS }; \_button.x = \_param.X; \_button.y = \_param.Y; return \_button; end; local function buttonTouchEvent( event ) local t = event.target; local stage = display.getCurrentStage(); if t.id=="b1" then if event.phase == "ended" then widgetobj.bLalala2:setEnabled(false); native.showAlert( "Corona", "b1 pressed.", { "OK" }, function() end ) end; elseif t.id=="b2" then if event.phase == "ended" then native.showAlert( "Corona", "b2 pressed.", { "OK" }, function() end ) end; end; end; widgetobj= {}; widgetobj.bLalala1 = createButton( {X = \_W \* 0.85, Y = 0, W = 238, H=44, FONT = \_DEFAULT\_FONT.NAME, FONTSIZE = \_DEFAULT\_FONT.SIZE, DEFAULTFILE = "butt\_mode1.png", OVERFILE = "butt\_mode2.png", LABEL = "b1", ID="b1", LABELALIGN= "center", LABELCOLOR={ default={ 1, 1, 1 }, over={ 0, 0, 0, 0.5 }}, EMBOSS=true} ); widgetobj.bLalala1:addEventListener("touch", buttonTouchEvent); widgetobj.bLalala2 = createButton( {X = \_W \* 0.85, Y = 0, W = 238, H=44, FONT = \_DEFAULT\_FONT.NAME, FONTSIZE = \_DEFAULT\_FONT.SIZE, DEFAULTFILE = "butt\_mode1.png", OVERFILE = "butt\_mode2.png", LABEL = "b2", ID="b2", LABELALIGN= "center", LABELCOLOR={ default={ 1, 1, 1 }, over={ 0, 0, 0, 0.5 }}, EMBOSS=true} ); widgetobj.bLalala2:addEventListener("touch", buttonTouchEvent); widgetobj.bLalala1.x = display.contentCenterX; widgetobj.bLalala1.y = 50 widgetobj.bLalala2.x = display.contentCenterX; widgetobj.bLalala2.y = 100

[rob]

I see your problem.  You are adding a touch handler to the button which bypasses the buttons’ internal controls.  Instead do this:

function createButton(\_param)     local \_button = widget.newButton{             id=\_param.ID,             isEnabled=false,             width = \_param.W,    height = \_param.H,             defaultFile = \_param.DEFAULTFILE,    overFile = \_param.OVERFILE,             label = \_param.LABEL, labelAlign = \_param.LABELALIGN, labelColor= \_param.LABELCOLOR,             font = \_param.FONTNAME, fontSize = \_param.FONTSIZE,             emboss = \_param.EMBOSS,             onEvent = \_param.EVENTHANDLER,         };     \_button.x = \_param.X;     \_button.y = \_param.Y;     return \_button; end; widgetobj.bLalala1 = createButton(     {X = \_W \* 0.85, Y = 0,    W = 238, H=44,    FONT = \_DEFAULT\_FONT.NAME,    FONTSIZE = \_DEFAULT\_FONT.SIZE,     DEFAULTFILE = "butt\_mode1.png", OVERFILE = "butt\_mode2.png",          LABEL = "b1",  ID="b1", LABELALIGN= "center",     EVENTHANDLER = buttonTouchEvent,     LABELCOLOR={ default={ 1, 1, 1 }, over={ 0, 0, 0, 0.5 }}, EMBOSS=true} );

For isEnabled to work, the widget has to manage the adding and removing of the touch handler.  You don’t do it yourself.

As a small forum administrative point, in the future please use the <> button in the edit bar to post your code so that it’s formatted correctly.

Rob

[DragonGameStudio]

okay thank you, now it works fine