air 2.0 应用程序退出，调用 preventDefault [英] air 2.0 on application quit, call preventDefault

问题描述

试图阻止应用程序在单击 X 按钮时关闭，它仍然关闭，但 AIR 进程正在任务管理器中运行.代码有什么问题?

申请完成:

NativeApplication.nativeApplication.addEventListener(Event.EXITING, onExiting);

结束代码:

私有函数 onExiting(e:Event):void{e.preventDefault();}

解决方案

尝试 Event.CLOSING.这就是我用来取消关闭的.

Event.EXITING 发生在窗口被移除之后，应该仅用于清理，而不是阻止应用程序关闭.

来自 文档:><块引用>

在 Windows 上，您将唯一一次获得退出事件是在关闭之后最后一个窗口(当 autoExit=true 时).

<小时>

示例不可关闭"应用程序:

<fx:脚本><![CDATA[导入 mx.controls.Alert;私有函数 init():void{this.addEventListener(Event.CLOSING, function(e:Event):void{e.preventDefault();Alert.show('不可关闭！');});}]]></fx:脚本></s:WindowedApplication>

祝你好运，
阿林

Trying to prevent the application from shutting down when clicked the X button, it still closing but the AIR process is running in the task manager. What wrong with the code?

Application Complete:

NativeApplication.nativeApplication.addEventListener(Event.EXITING, onExiting);

Closing code:

private function onExiting(e:Event):void
{
e.preventDefault();
}

解决方案

Try Event.CLOSING. That's what I use to cancel closing.

Event.EXITING happens after the window is removed and should be used only for cleanup, and not to prevent the application from closing.

From the docs:

On Windows, the only time you will get the exiting event is after closing the last window (when autoExit=true).

---

Sample "unclosable" application:

<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" 
                       xmlns:s="library://ns.adobe.com/flex/spark" 
                       xmlns:mx="library://ns.adobe.com/flex/mx"
                       initialize="init()">
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;

            private function init():void{
                this.addEventListener(Event.CLOSING, function(e:Event):void{
                    e.preventDefault();
                    Alert.show('Unclosable!');
                });
            }
        ]]>
    </fx:Script>
</s:WindowedApplication>

Good luck,
Alin

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