错误:使用import flash.net.NetworkInfo时无法找到定义flash.net:NetworkInfo

时间:2014-12-19 06:51:54

标签: actionscript-3 flash flex actionscript mxmlc

我正在尝试使用actionscript代码构建一个swf文件。我已经下载了Flex SDK。现在我正在尝试编译.as文件。它工作正常,并使用Flex Home的bin文件夹中的以下命令编译成.swf文件。

命令:/ mxmlc /home/anshul/Downloads/HelloWorld/src/Main.as

FileName:Main.as

package
{
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.text.TextField;   

    public class Main extends Sprite
    {

        public function Main():void
        {
            if (stage) init();
        }

        private function init(e:Event = null):void
        {
            var tf:TextField = new TextField();
            tf.text = "Hello, world!, Lets see working or not";
            addChild( tf );
        }

    }

}

这是一个基本的例子,工作正常。但是,如果我添加导入,

import flash.net.NetworkInfo;

然后它抛出以下错误 错误:无法找到定义flash.net:NetworkInfo。

我已经完成了各种教程,但似乎无法使其发挥作用。那么在运行命令时我是否需要包含任何库?

2 个答案:

答案 0 :(得分:0)

在谈到您的代码之前,您应该知道flash.net.NetworkInfoonly available for Air 2 and up。正如Adobe所说:“ ...所有桌面操作系统和AIR for TV设备都支持此功能,但并非所有移动设备都支持此功能。您可以使用NetworkInfo在运行时测试支持。 isSupported属性。有关跨多个配置文件的API支持的详细信息,请参阅AIR配置文件支持.... “,并非所有移动设备都支持,这就是为什么最好使用NetworkInfo.isSupported来验证它是否是支持与否。

关于如何使用它,请从我在此代码中实现的Adobe.com中获取此示例:

<?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"
                       width="620" height="573" creationComplete="init(event)">
    <fx:Script>
        <![CDATA[           

            import flash.net.NetworkInfo;           
            import mx.events.FlexEvent; 

            protected function init(event:FlexEvent):void
            {
                // enable the button only if NetworkInfo is supported
                btn.enabled = NetworkInfo.isSupported;
            }           
            protected function btn_clickHandler(event:MouseEvent):void
            {
                // get device network interfaces
                var output:String = '';
                var results:Vector.<NetworkInterface> = NetworkInfo.networkInfo.findInterfaces(); 
                for (var i:int=0; i<results.length; i++) { 
                    output = output + "Name: " + results[i].name + "\n" 
                        + "DisplayName: " + results[i].displayName + "\n" 
                        + "MTU: " + results[i].mtu + "\n" 
                        + "HardwareAddr: " + results[i].hardwareAddress + "\n" 
                        + "Active: " + results[i].active + "\n"; 
                    for (var j:int=0; j<results[i].addresses.length; j++) { 
                        output = output + "Addr: " + results[i].addresses[j].address + "\n" 
                            + "Broadcast: " + results[i].addresses[j].broadcast + "\n" 
                            + "PrefixLength: " + results[i].addresses[j].prefixLength + "\n" 
                            + "IPVersion: " + results[i].addresses[j].ipVersion + "\n"; 
                    } 
                    output = output + "\n"; 
                } 
                txt.text = output;
            }

        ]]>
    </fx:Script>
    <s:Button id="btn" x="10" y="10" width="192" height="33" label="Get Network Interfaces"
              click="btn_clickHandler(event)"/>
    <s:TextArea id="txt" x="8" y="45" width="602" height="509"/>
</s:WindowedApplication>

答案 1 :(得分:0)

正如@akmozo所说,flash.net.NetworkInfo是AIR类,因此您需要在构建命令中包含AIR配置:

/mxmlc ./Main.as -load-config+=$FLEX_HOME/frameworks/air-config.xml