Adobe® Flex® 4 Language Reference
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flash.net 
NetworkInfo 
Packageflash.net
Classpublic class NetworkInfo
InheritanceNetworkInfo Inheritance EventDispatcher Inheritance Object

Language Version: ActionScript 3.0
Runtime Versions: AIR 2

The NetworkInfo class provides information about the network interfaces on a computer.

The NetworkInfo object is a singleton. To get the single NetworkInfo object, use the static NetworkInfo.networkInfo property. Do not call the class constructor, new NetworkInfo().

Most computers have one or more interfaces, such as a wired and a wireless network interface. Additional interfaces such as VPN, loopback, or virtual interfaces can also be present.

A NetworkInfo object dispatches a change event when the available interfaces change. Call the findInterfaces() method to determine the most current network information.

Note: The NativeApplication object also dispatches network change events.

See also



Public Properties
 PropertyDefined By
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
  AIR-only isSupported : Boolean
[static] [read-only] Indicates whether access to network interface information is supported on the client system.
NetworkInfo
  AIR-only networkInfo : NetworkInfo
[static] [read-only] The singleton instance of the NetworkInfo object.
NetworkInfo
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
Public Methods
 MethodDefined By
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.
EventDispatcher
 Inherited
Dispatches an event into the event flow.
EventDispatcher
  
Returns the list of network interfaces associated with this machine.
NetworkInfo
 Inherited
Checks whether the EventDispatcher object has any listeners registered for a specific type of event.
EventDispatcher
 Inherited
Indicates whether an object has a specified property defined.
Object
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
Removes a listener from the EventDispatcher object.
EventDispatcher
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Returns the primitive value of the specified object.
Object
 Inherited
Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.
EventDispatcher
Events
 Event Summary Defined By
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.EventDispatcher
 Inherited[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.EventDispatcher
  Dispatched when the network interfaces have changed.NetworkInfo
Property Detail
AIR-only 

isSupported

property
isSupported:Boolean  [read-only]

Runtime Versions: AIR 2

Indicates whether access to network interface information is supported on the client system.



Implementation
    public static function get isSupported():Boolean
AIR-only 

networkInfo

property 
networkInfo:NetworkInfo  [read-only]

Language Version: ActionScript 3.0
Runtime Versions: AIR 2

The singleton instance of the NetworkInfo object.



Implementation
    public static function get networkInfo():NetworkInfo

Throws
SecurityError — If content running outside the AIR application security sandbox accesses this property.
Method Detail

AIR-only findInterfaces

()method
public function findInterfaces():Vector.<NetworkInterface>

Language Version: ActionScript 3.0
Runtime Versions: AIR 2

Returns the list of network interfaces associated with this machine.

Returns
Vector.<NetworkInterface> — An array of NetworkInterface objects
Event Detail
AIR-only 

networkChange

Event
Event Object Type: flash.events.Event
property Event.type = flash.events.Event.NETWORK_CHANGE

Language Version: ActionScript 3.0
Runtime Versions: AIR 2

Dispatched when the network interfaces have changed.

The Event.NETWORK_CHANGE constant defines the value of the type property of a networkChange event object.

This event has the following properties:

PropertyValue
bubblesfalse
cancelablefalse; there is no default behavior to cancel.
currentTargetThe object that is actively processing the Event object with an event listener.
targetThe NativeApplication object.