KlugDialog

<extensions>
    <extensionID>com.klug.dialog.Dialog</extensionID>
</extensions>

import com.klug.dialog.Dialog;

var dialog:Dialog = Dialog.getInstance();

if ( dialog.isSupported )
{
    dialog.show( "Saved", "The recording is in your library." );   // one "OK" button
}
else
{
    showAppAlert( "Saved" );   // your app's own fallback dialog, e.g. on Windows
}

dialog.show( "Delete recording?", "This cannot be undone.",
    [ "Delete", "Keep" ],
    function( index:int ):void
    {
        // index = position in the buttons array;
        // -1 = closed without a button, e.g. the Android back key
        if ( index == 0 ) deleteRecording();   // your app
    },
    Dialog.STYLE_WARNING );   // alert style of the macOS sheet

var buttons:Array = [
    { label:"Cancel",  style:4, tag:0 },   // style 4 = cancel, 3 = destructive
    { label:"Sign in", style:0, tag:1 }
];
var fields:Array = [
    { placeholder:"E-mail", text:lastEmail, keyboardType:7 },   // 7 = e-mail keyboard
    { placeholder:"Password", secure:true }                 // never auto-capitalised
];

dialog.present( "Sign in", "Please enter your account.", true, buttons, fields,
    function( tag:int, values:Array, cancelled:Boolean = false ):void
    {
        if ( cancelled ) return;   // closed without a button (tag -1)
        if ( tag == 1 ) signIn( values[0], values[1] );   // values in field order
    },
    null, "dark" );   // theme on Android and iOS; macOS follows the system

// your own id: the same dialog is updated and closed with it
dialog.progressShow( "connect", "Connecting", "Contacting the server…", false,
    function():void { trace( "progress dialog closed" ); } );   // fires once

dialog.progressUpdate( "connect", "Signing in…" );

// when the work is done, or has failed
dialog.progressDismiss( "connect" );

// pass your own id as the 7th parameter to close the dialog later
dialog.present( "Waiting for the camera", "Tap Cancel to stop waiting.", false,
    [ { label:"Cancel", style:4, tag:0 } ], null,
    function( tag:int, values:Array ):void { stopWaiting(); },   // your app
    "waitCamera" );

// the camera has answered: close the dialog, no callback fires
dialog.presentDismiss( "waitCamera" );