native.cancelAlert()

Type Function
Library native.*
Return value none
Revision 2017.3178
Keywords alerts, display objects, native objects
See also native.showAlert()

Overview

Dismisses an alert box programmatically. For example, you may wish to have a popup alert that automatically disappears after ten seconds even if the user doesn't click it. In that case, you could call this function at the end of a timer.

Syntax

native.cancelAlert( alert )
alert (required)

Table. The alert to cancel, returned from native.showAlert().

Examples

Standard
local function onComplete( event )
    if event.action == "clicked" then
        local i = event.index
        if i == 1 then
            -- Do nothing; dialog will simply dismiss
        elseif i == 2 then
            -- Open URL if "Learn More" (the 2nd button) was clicked
            system.openURL( "http://www.coronalabs.com" )
        end
    end
end
 
-- Show alert with two buttons
local alert = native.showAlert( "Corona", "Dream. Build. Ship.", { "OK", "Learn More" }, onComplete )
 
-- Dismisses "alert" after 10 seconds if user has not responded
local function cancelMyAlert()
    native.cancelAlert( alert )
end
 
timer.performWithDelay( 10000, cancelMyAlert )
Cancel and Show New Alert
-- Handler that gets notified when the alert closes
local function onComplete( event )
   if event.action == "clicked" then
        local i = event.index
        if i == 1 then
            -- Do nothing; dialog will simply dismiss
        elseif i == 2 then
            -- Open URL if "Learn More" (second button) was clicked
            system.openURL( "http://www.coronalabs.com" )
        end
    end
end

local alert

if ( alert ~= nil ) then
    native.cancelAlert( alert )
    alert = nil
end

local function showAlert()
    alert = native.showAlert( "Corona", "Dream. Build. Ship.", { "OK", "Learn More" }, onComplete )
end

timer.performWithDelay( 10, showAlert )