Adobe Air - Check for internet connection

Question

I'm building an Air app with Adobe Flash CS 5. I need to check if an internet connection is available.

I'm running into this errors:

1172: Definition air.net could not be found. 1046: Type was not found or was not a compile-time constant: URLMonitor.

This is my code:

import air.net.*;

var monitor:URLMonitor;

function checkInternetConnection(e:Event = null):void
{
var url:URLRequest = new URLRequest("http://www.google.com");
url.method = "HEAD";
monitor = new URLMonitor(url);
monitor.pollInterval = 3000;
//
monitor.addEventListener(StatusEvent.STATUS,onConnection);
//
function onConnection(e:Event = null):void
{
trace("onConnection")
}
//
monitor.start();
trace(monitor)
}

What is missing? Thanks. Uli

score 10 · Answer 1 · answered Mar 12 '12 at 18:12

Hi I have used a following code successfully.

You only have to import: import air.net.URLMonitor;

protected function init():void
        {
            // Center main AIR app window on the screen
            nativeWindow.x = (Capabilities.screenResolutionX - nativeWindow.width) / 2;
            nativeWindow.y = (Capabilities.screenResolutionY - nativeWindow.height) / 2;
            // Detects a general change in network status
            NativeApplication.nativeApplication.addEventListener(Event.NETWORK_CHANGE,onNetworkChange);
        }

        //Checking for network connectivity
        protected function onNetworkChange(e:Event):void
        {
        //  Alert.show("Your Network State changed", "INFO");
            monitor = new URLMonitor(new URLRequest('http://www.adobe.com'));
            monitor.addEventListener(StatusEvent.STATUS, netConnectivity);
            monitor.start();
        }

        protected function netConnectivity(e:StatusEvent):void 
        {
            if(monitor.available)
            {
                Alert.show("Status change. You are connected to the internet", "INFO");
            }
            else
            {
                Alert.show("Status change. You are not connected to the internet", "INFO");
            }

            monitor.stop();
        }

score 7 · Accepted Answer · answered Mar 12 '12 at 18:13

7

You need to add the aircore.swc

Go to File->ActionScript Settings

On the Library Path tab, click the + icon (Add New Path) and then click the Flash icon (Browse To SWC).

You then need to browse to the location where Flash CS5 is installed and go to AIK2.5/frameworks/libs/air/ and select the aircore.swc

answered Mar 12 '12 at 18:13

Pixel Elephant

20,649
9
66
83

Done that but now I'm running into this error: `5000: The class 'air.net.URLMonitor' must subclass 'flash.display.MovieClip' since it is linked to a library symbol of that type.` I dragged the **URLMonitor** component from the components inspector into the library. – Uli Mar 13 '12 at 16:22
@Uli Did you follow the steps exactly as above? I'm not sure why you would be dragging any components into the library. – Pixel Elephant Mar 13 '12 at 17:51

score 3 · Answer 3 · answered Nov 30 '12 at 16:34

3

There is an networkChange event in the NetworkInfo class: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/NetworkInfo.html

answered Nov 30 '12 at 16:34

snak3

31
1

score 1 · Answer 4 · answered Mar 12 '12 at 18:15

1

In {Flash_CS5_installation_path}/AIR{air_version}/frameworks/libs/air you can find *.swc files , which you need to include in your application. About 'How to include' read here.

answered Mar 12 '12 at 18:15

Engineer

47,849
12
88
91

score 0 · Answer 5 · answered Mar 12 '12 at 18:12

0

Do you have these classes available to your app:

import air.net.*;

i.e. a directory named 'air' sat next to your .fla file.

answered Mar 12 '12 at 18:12

crooksy88

3,849
1
24
30

Adobe Air - Check for internet connection

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